MANUAL MONITOR Preliminary OCT. 1984 PN-314004-01 · 1200 Wilson Drive, West Chester, Pennsylvania...
Transcript of MANUAL MONITOR Preliminary OCT. 1984 PN-314004-01 · 1200 Wilson Drive, West Chester, Pennsylvania...
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SERVICE MANUAL
MODEL 1701 /1702 MONITOR
Preliminary
OCT. 1984 PN - 314004-01
SERVICE MANUAL
MODEL 1701/1702 MONITOR
Preliminary
OCT. 1984 PN-314004-01
Commodore Business Machines, Inc. 1200 Wilson Drive, West Chester, Pennsylvania 19380 U.S.A.
Commodore makes no expressed or implied warranties with regard to the information contained herein. The information is made available solely on an as is basis, and the entire risk as to quality and accuracy is with the user. Commodore shall not be liable for any consequential or incidental damages in connection with the use of the information contained herein. The listing of any available replacement part herein does not constitute in any case a recommendation, warranty or guaranty as to quality or suitability of such replacement part. Reproduction or use without expressed permission, of editorial or pictorial content, in any matter is prohibited.
This manual contains copyrighted and proprietary information. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of Commodore Electronics Limited.
Copyright © 1984 by Commodore Electronics Limited. All rights reserved.
CONTENTS
Title Page
SPECIFICATIONS 1
SAFETY PRECAUTIONS ......................................................................................... 2
ADJUSTMENTS
PURITY ...................................................................................................... 4
CONVERGENCE ........................................................................................... 5
WHITE BALANCE ........................................................................................ 5
B1 VOLTAGE, FOCUS, VERT. & HOR. ADJ. ................................................... 6
SUB TINT, SUB CONTRAST, COLOR SYNC, 3.58 MHz TRAP ........................... 7
BLOCK DIAGRAM ................................................................................................. 8
CIRCUIT NOTES
VIDEO CIRCUIT ........................................................................................... 9
AUDIO CIRCUIT .......................................................................................... 10
COLOR DEMODULATION CIRCUIT ................................................................ 11
CHROMA OUTPUT CIRCUIT ............ .......................... .............. ........ ............. 12
CONTROL CIRCUIT ...................................................................................... 13
H. OSC., V. OSC. & V. OUT CIRCUIT ............................................................ 14
HORIZONTAL OUTPUT CIRCUIT ................................................................... 15
POWER CIRCUIT ......................................................................................... 16
TROUBLESHOOTING GUIDE
NO RASTER, NO SOUND (B 1 NORMAL) ........................................................ 17
NO RASTER, NO SOUND (B1 ABNORMAL) .................................... ................ 18
NO RASTER, NORMAL SOUND ..................................................................... 19
NO SOUND, NORMAL PICTURE .................................................................... 19
SINGLE HORIZONTAL LINE, NORMAL SOUND ................................................ 20
IMPROPER HORIZONTAL OR VERTICAL SYNC ............................................... 22
iii
CONTENTS (Continued)
Title Page
1701 PARTS LIST .. ............................................................................................... 23
1701 BOARD LAyOUT......... ................................................................................. 30
1701 SCHEMATIC NOTES ..................................................................................... 31
1701 SCHEMATIC ................................................................................................ 31
1702 MODEL IDENTIFICATION ........................................ ........................ ............... 32
1702 PARTS LIST ................................................................................................. 33
1702 BOARD LAYOUT .......................................................................................... 40
1702 SCHEMATIC NOTES ..................................................................................... 41
1702 SCHEMATIC ........................................... ..... ................................................ 41
1702T BOARD LAYOUT ........................................................................................ 42
1702T UNIQUE PARTS .......................................................................................... 43
1702T SCHEMATIC .............................................................................................. 43
iv
GENERAL DESCRIPTION
C1701/C1702 COLOR MONITORS PRODUCT SPECIFICATION
The C1701 and C1702 are quality, high resolution color monitors, designed to maximize the video capabilities of your Commodore Computer. They give you a superior color picture that enhances your computing experience and are completely compatible with all Commodore equipment.
SCREEN SIZE
13 Inch (screen measured diagonally). NTSC color standard
DISPLAY
40 Columns x 25 lines
RESOLUTION
1000 Characters per screen
CONTROLS
Color, tint, brightness, contrast, volume, vertical hold and horizontal hold
AUDIO
Built-in audio amplifier and speaker
INPUTS
Chrominance, luminance, composite video and audio
OTHER FEATURES
Video cassette recorder compatible (1 V p-p, 75 Ohms)
COMPUTERS
Commodore 64, VIC 20, Plus/4 and C16
POWER REQUIREMENTS
120 Volts, 60 Hz, 0.85 Amps
POWER CONSUMPTION
87 Watts
All specifications subject to change without notice.
1
SAFETY PRECAUTIONS
1. This product contains special designed circuits and components that were designed for safety purposes.
For continued protection, changes should not be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only.
2. Alterations to the design or circuitry of this receiver should not be made. Any design alterations or additions will void the manufactuer's warranty and will further relieve the manufacturer of responsibility for personal injury or property damage resulting therefrom.
3. Many electrical and mechanical parts in MONITOR sets have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the parts list of this service manual. Electrical components having such features are identified by shading on the schematics and by (*) on the parts list in this service manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement part shown in the parts list may create shock, fire, or other hazards.
4. If any repair has been made to the chassis, it is recommended the the B1 setting be checked or adjusted (See ADJUSTMENT OF B1 VOLTAGE).
5. The high voltage applied to the picture tube must conform with that specified in this service manual. Excessive high voltage can cause an increase in X-Ray emission, arcing and possible component damage, therefore operation under excessive high voltage conditions should be kept to a minimum, or should be prevented. If severe arcing occurs, remove the AC power immediately and determine the cause by visual inspection (incorrect installation, cracked or melted high voltage harness, poor soldering, etc.). To maintain the proper minimum level of soft X-Ray emission, components in the high voltage circuitry including the picture tube, must be the exact replacements or alternatives approved by the manufacturer of the complete product.
6. Do not check high voltage by drawing an arc. Use a high voltage meter or a high voltage probe with a VTVM. Discharge the picture tube before attempting meter connection by connecting a clip lead to the ground frame and connecting the other end of the lead through a 1 OkO 2W resistor to the anode button.
7. When service is required, observe the original lead dress. Extra precaution should be given to assure correct lead dress in the high voltage circuit area. Where a short circuit has occurred, those components that indicate evidence of overheating should be replaced. Always use the manufacturer's replacement components.
2
SAFETY PRECAUTIONS (Continued)
8. ISOLATION CHECK (SAFETY FOR ELECTRICAL SHOCK HAZARD)
After re-assembling the product, always perfrom an isolation check on the exposed metal parts of the cabinet, screwheads, cable jacks, controls shafts, etc., to be sure the product is safe to operate without danger of electrical shock.
(A) DIELECTRIC STRENGTH TEST
The isolation between the AC primary circuit and all metal parts exposed to the user, particularly any exposed metal part having a return path to the chassis should withstand a voltage of 1, 100V AC (r.m.s.) for a period of one second.
This method of test requires test equipment not generally found in the service trade. *
(8) LEAKAGE CURRENT CHECK
*
Plug the AC line cord directly into the AC outlet (do not use a line isolation transformer during this check). Using a "Leakage Current Tester", measure the leakage current from each exposed metal part of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground (water pipe, etc.). Any leakage current must not exceed 0.5mA.
ALTERNATE CHECK METHOD
Plug the AC line cord directly into the AC output (do not use a line isolation transformer during this check). Use an AC voltmeter having 1,000 ohms per volt or more sensitivity in the following manner. Connect a 15000 10W resistor paralleled by a 0.15JLF AC-type capacitor between an exposed metal part and a known good earth ground (water pipe, etc.).
Measure the AC voltage across the resistor with the AC voltmeter.
Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Any voltage measured must not exceed 0.35V AC (r.m.s). This corresponds to O.5mA AC (r.m.s.).
CAUTION:
When troubleshooting, with power applied, use an isolation transformer and confirm that the CRT earth wire is connected to the CRT socket board and the chassis.
3
ADJUSTMENTS - PURITY, CONVERGENCE AND WHITE BALANCE
PICTURE TUBE The picture tube is a precision in-line gun type. For this picture tube, dynamic convergence is carried out by a precision deflection yoke which eliminates the use of a convergence yoke and a convergence circuit. The adjustment of the picture tube is therefore made easier as only the adjustment of static convergence by using a magnet is enough. The deflection yoke and purity/convergency magnets assembly has been set at the factory and requires no field adjustments.
However, should the assembly be accidentally jarred or tampered vyith, some or all adjustment may be necessary.
COLOR PURITY & VERTICAL CENTER Loosen yoke retaining clamp (Fig. 2-1). With a sharp knife, cut between the picture tube and the wedge. Remove wedges completely and clean off dried adhesive from the picture tube. PAINT is used to lock the tabs of the purity/ convergence magnet assembly in place (Fig. 2-1). The paint must be removed with the end of a screwdriver before any adjustments are attempted.
1. Inject a Video Signal (RASTER) to the Video input terminal.
2. Let the purity tabs come in line horizontally as is shown in Fig. 2-3. A long tab should be in the same direction as the other short tab.
3. Move the yoke slowly backward. 4. Tum the green cut-off control to maximum and the red
and blue cut-off controls to minimum. Then adjust the screen control so that the green band can be seen best. (Fig. 2-4)
5 . Rotate the two tabs in the opposite direction with them kept at an angle. Move them in either direction so that the green band is centered on the picture tube.
6 . Check the vertical center position by displaying a horizontal line. If incorrect, bring it to the center by rotating the two tabs, kept at an angle, together in either direction. (Fig. 2-5, 2-6)
7. Repeat steps 5 and 6 alternately until the green band and the vertical centre are in line.
a. Move the yoke slowly towards the bell of the tube so that the whole surface of the picture tube is filled with a pure green raster.
9. Turning the red cut-off control to maximum and the green cut-off control to minimum, check for pure red raster.
10. Turning the blue cut-off control to maximum and the green cut-off control to minimum, check for pure blue raster.
11. Secure yoke retaining clamp (do not install wedges at this time).
YOKE LOCKING RING PURITY
MAGNETS (mark "P") Fig. 2-1
(REAR VIEW)
LONG AND SHORT PROTRUSIONS
Let the protrusions come in line Fig. 2-3
(FRONT VIEW) _--c..-;?""7f'7':7"T-..L GREEN BAND
CENTRE Bring the green band to the centre. Fig. 2-4
(FRONT VIEW)
HORIZONTAL LINE ,~..... f ' .. /:.....
VERTICAL CENTRE (identified with a
'--- white notch)
Bring the horizontal line nearest to the white notches shown in the dotted circles.
, , , I
."
Fig. 2-5
(TOP VIEW)
RDG .
l~J,--___ --, Select the cut-off service switch from N to S. and a horizontal line will appear.
Fig. 2-6
4
STATIC CONVERGENCE & DYNAMIC CONVERGENCE
Static convergence is achieved by four magnets located on the neck, nearest the base of the picture tube. The front pair of magnetic rings (closest to the purity tabs) are adjusted to converge the red and blue crosshatch lines. The rear pair of convergence rings (closest to the base of the picture tube) are adjusted to converge the magenta (Red/Blue) and green crosshatch lines.
Dynamic convergence is achieved by tilting the deflection yoke, Up-Down and Left-Right.
1. Inject Video Signal (CROSSHATCH) to the Video input terminal and adjust BRIGHTNESS and CONTRAST control for distinct pattern.
2. Adjust the convergence around the edges of the picture tube tilting the yoke, up-down and left-right. Temporarily install one wedge at the top of the yoke. (Fig. 2-9, 2-10, 2-11)
3. Rotate the front pair of tabs as a unit to minimize the separation of the red and blue lines around the center of the screen. To adjust the convergence of red and blue, vary the angle between the tabs.
4. Rotate the rear pair of tabs as a unit to minimize the separation of the magenta and green lines. (Fig. 2-8)
5. Adjust the spacing of the rear tabs to converge the magenta and green lines.
6. Apply paint to fix 6 magnets. 7. Remove the wedge installed temporarily on the yoke. 8. Tilting the angle of the yoke up, down and sideways,
adjust the yoke so as to obtain the circumference convergence. (Fig. 2-10, 2-11)
9. Insert three wedges to the positions as shown in Fig. 2-12 to obtain the best circumference convergence.
10. Secure wedges in position with the adhesive backing provided or use a non-conductive silicon/rubber compound.
11. White balance adjustment (Black & White tracking) can now be performed.
WHITE BALANCE ADJUSTMENT (Black and White Tracking)
1. Inject a Video Signal (RASTER) to the Video input terminal.
2. Set the red and green drive controls for their mechanical center.
3. Turn the red, green and blue cut off controls and the screen control fully counterclockwise.
4. Change the service switch as shown in Fig. 2-6, to the "S" position.
5. Turn screen control slowly clockwise until a very faint horizontal line appears.
6. Turn the cut off control of the color which has appeared first, clockwise by about 10° and then adjust the screen control again so that the color may shine faintly.
7. Turn the other color cut off controls slowly clockwise until a reasonable white line appears.
8. Return the service switch to normal (N) position. (Fig. 2-6)
9. Adjust the red and green drive controls for best white highlights.
(FRONT VIEW) (FRONT VIEW)
RED AROUND l) BLUE
r GREEN \ AROUND~ CENTRE ~ MAGENTA CENTRE .' . ' ,
Fig. 2-7 Fig. 2-8
(REAR VIEW)
(l)WEDGE
DEF. YOKE
Fig. 2-9
(FRONT VIEW)
BLUE
r ;\1.< BLUE -_." I "" RED
GREEN-~,,~'----~I~--~:~_'~-GREEN RED - ,." ,;'-- _BLUE
>+~, BLUE GREEN RED
Tilting the yoke upward will move the lines as shown with the arrows.
Fig. 2-10
(FRONT VIEW)
Tilting the yoke upward will move the lines as shown with the arrows.
Fig. 2-11
(REAR VIEW)
ANODE CAP
Fig. 2·12
5
NOTE: 1702 locations in ( ).
8 1 VOLTAGE - Inject a video signal
1701 (110V)
Regulate VR, R109, for B1 adjustment so that Dc voltage between TP-91 and earth is 110 volts.
1702 (125V.)
Confirm that the voltage at TP-94 and IC901 pin 4 is 125 volts.
NOTE: Meter should be periodically calibrated at 20K ohms/volt.
FOCUS
Adjust the FOCUS control for best overall definition and picture detail at normal brightness and contrast.
VERTICAL POSITION
Adjust the V. center VR R428 (R429) to the optimum vertical picture position.
VERTICAL HEIGHT AND LINEARITY
1. Display a pattern which allows easy confirmation of symmetry (such as a circle or crosshatch). 2. Reduce the vertical size with the V. HEIGHT VR. 3. Adjust the vertical linearity with the V. LIN. VR. 4. Readjust the vertical height, so that the picture extends to normal size.
HORIZONTAL WIDTH
Adjust H. WIDTH control coil L503 (L522) by turning it with a hexagonal adjusting bar only if RIGHT and LEFT sides of picture can't be seen.
HORIZONTAL OSCILLATOR
1. Set the H. FREQ. VR to the mechanical center position. 2. Connect a jumper clip between TP-33A and TP-33B. 3. While rotating the H. FREQ. VR, R504, keep the picture stationary or slowly moving. 4. Remove the jumper wire. 5. Make sure that the set maintains horizontal sync, when signals are switched.
6
SUB TINT AND SUB COLOR
1. Display a picture and set the tint and color VRs on the control panel to the central click position. 2. Adjust the sub tint VR, R305 and sub color VR, R303 for the optimum display.
SUB CONTRAST AND SUB BRIGHT
1 . Display a picture and set the contrast and bright VRs on the control panel to the center click positions. 2. Adjust the sub contrast VR, R209 and sub bright VR, R22 (R863) for optimum display.
COLOR SYNC
1 . Display a color video signal. 2. Connect jumper clips between TP-40 and earth (TP-E) and between TP-51 and IC301 pin 15
(TP-51 B). 3. Use a non-metallic screwdriver to turn trimmer capacitor C308. 4. Adjust so that the rolling color stripes become thick and the rolling slows or stops. 5. Remove jumper clips. 6. Confirm that color sync is not disrupted when signals are switched.
3.58 MHz TRAP
1 . Receive a Video Signal into the Video input terminal. 2. Connect oscilloscope probe to DL201 (Delay Line) output side. 3. Turn the core of T201 so that that 3.58MHz signal is minimized.
MINIMUM
7
e
AUDIO
Y (CHROMINANCE)
C
(LUMINANCE)
AUDIO VIDEO
L~ ~J r;:l F
R F
6 I
i-+81 0 ,....
I I
R -0 - .............. 1
;J SIGNAL SELECT S
R 0) 0 '-'
F
<"-~ "-
"
I
e
1701/1702 BLOCK DIAGRAM
!AUDIO AMP! It r-::UTPUT &. DRIVE
I I
3.58 f-"o 3.58 TRAP
SW TRAP
~ DELAY VIDEO BUFFER VIDEO AMP. &.
SYNC. SEPARATOR
I BUFFER l
BP AMP. KILLER
I CONTROL I iii i I i I I I I I I
I
VIDEO I Y AMP. I
1 SUPER SCREEN I CONTROL
COLOR
e
fll. r---c;
>< ~ irE r---I-C ::E
F: FRONT R: REAR BUFFER JSANDPASS}-
FILTER COLOR DE MOD. DIFFERENCE1 '---&. ETC.
(X)
POWER TRANSF:
LINE FILTER
&. FUSE
ACIN
I .1 VOLTAGE J
RECT. CONTROL -B1
I i
VERTICAL V. OSC &. V. AMP. I-- OUTPUT
~ ------------,..... H. AT C &. H. OSC
I HORIZONTAL HORIZONTAL t-- OUTPUT
DRIVE
I X-RAY prOTECTOR B1
roo--
V
I -- ---H
'----
HIGH VOLTAGE
I RECT.
CRT
Rial 150
r--- )( 3 ~2 ----, Buffer
-ope.n ; no color
: eo 0"" is .©~short} I . -@-®shart. fuint
C202 -----,
For sync. "",pli fie .... em Itt~r .5 )"nOoth i~
-ope It ~ fa. u It)' sync.
- R2.oI,R202,C2o3 Sync. sera n~tor
• !?ZOZ. cplU\ : fa~lt)'
I Dc,Rh~:~ I C2 \ I ---'-""'; C2.o4
Br-~ss Ac. couplil1'} condenser
-DL20I, R204 t>e.lQ.y of !u.tooi/1C1.l"\ce sitahGtI
~"ct Lo(\ct yesi~ tlU1C~ -t>l2o\ cp~n. : no pktel ~
" snort: ~hostin~ - R204 0f~t\ ~ Sc~en bq.col"neS~~~9.ht I
VIDEO CIRCUIT
-$hort : f""dtr sr(\~·
~ln'I\"tc!'Y t;~ -cansia.ht . In" \ Ope" J ,C203 ope". Srt1 c.. .c.2.o3c;hort
I -J. .& It 'open:I"lO picfClre -snun.: Ill" r
synchTohitat;on -ShoTt. :1"10 Y/1s1e r L204 ~-------~ F're<t."Eh'r chl1 yo. ¢teris tic.
13.6VX352 r--R-2-O-1 ---';"'--~-lL 201
ISOK 820
2SC16S5 ,2SCISI5(Y,GR) 6V BUFFER R202
t.aK R353
82
XIOI 2SCI685,2SCI959(Y)
CIOI RI02 VIDEO AMP 470/6.3 150
RI03 390
RI04 2 .2K
- -~/=
CI02
T~331 6.3 -
16VP-p
(VI
14V
C351 '---1.4-V-P-'p--' 101 16
~U' II ~ ~ X351
I C251 :=47/16 ~ r--+--~--+---~
/ ,IC20J / R207 L 203
/ HAI1401 6.aK 270
VI DEO a SYNC / SEPAl / R250 R251 10K 10K
OV
'-__ (e) ..... _T_1¥12_4 ..... 2'-""SCL.C.:.....16-""..S'-'-5_. 2_S_C......;I,--8I5_{ Y--,' IGR) .l. / BUFFER / .
---- X\O\ --~-~ Vic!eo amp.
·ope". } -®~ short :"0 pic.tl4re -@-@ short -@ -e S~ort: Screen is
dl1Tk
X351 ---':""'" Buffer
~;~: shoTt }:no c.olor ·~-~short
-@~ shert : color is faint
C20\ ----'---,
f\.c. co~pl;F\~
-open : 110 pidl.(re
·short : tal.\\ \ r synchroniZPot;on
r----- C 205" -'---, Differenti~1
(aperture compensation:
'mllinly preshooti j'~) ·open : imo.~t is shu rp
·short: screen ;,5
do.:rk.
Differentca.l (aperture cC'mP'!n~tion: lno.inly overshcotin~)
-~o'7 ope" } .<;2O'Topen : jma~e is
- "short soft
/ TC211 270
-
1
/'i:5 _~ '2C]~ DL201
,.....A.,f\IIr+--tlI--+-J
I R2r4 R203 2. K
IBK
C 20 4 ""T""...L \/ 3.3/50BP -:::- /,
COy~<:.t;ol"l.
-open. : imo.,e is soft
R206 ---, S.,.Al\kir1 pu.lse i" "";;. lesistQnce
-open :dark piduR
CIRCUIT NOTES,
Although specifically written on the 170 1 monitor, most circuit theorlea apply to the 1702 alao. Refer to the 1702 schematic for differences In c0mponent values and IdentlflQatlon.
R206/ I r-__ ~ __ ~ ____ ~3A·3~K ____ ~~ R210
! 330
270 __ --
R209 SUS '"I I K CONTRA~
I X250 -,.-___ 2SCISI5 (Y,GR)
SWITCHER T201 3.S8MH Z TRfo?
6Vp.p
rvL (HI
X202 --------------~ Vide.o a,mo.
I
- R2.IO Men l ·R 2.1' O~i'\ j : rtO ra.ster "R2t2 c~"- } rIO pldu.~ ·x20Z ~:HI>skt: :s...-reen is Ilbnortnally
~-0ShCft hri'3ht I»"Id flybaCk @-®Short} line Cll'pears_
• X202 ODE!f1 : no YQS ter I
R2.0~ .R2.0'/, R223,c2/o ----,
Emitter ';)(as and freb'.H?hC;.
chlll""cteristic con-ec. tiot\. • Rloe OP"'h} . ' C210 shOTt :no plctllTe
HA/l401 TROUBLE" SYMPTOM DF PRESIJME ...
X2~D -----.., Switche.r
·©-@short:color error
'@ -@ short: sc reel'l b~cctneS briqht and
vertical stripes
T201 -----., 3 .SRMHt tro..p co\1
-Optm. no pic tl4Te
-shoTt: 3.!;RMliz trap dot interference
-110 Tas.ter . no sou"d
.ho picture
-sc.reen is too Fn'i~h t
• SCree.n is dark
'multI sync.
. raster is brl~ht Clhd
flyback line ar~Qy".s
• \ma~e ~ua.\;ty is
un sa. tis-Factory
I
9
"R65D,C651 1hp'4 to 'n!s~s tClttce
unci condehser
C6~2
,.-- "R(,!)! ,R6S2 Bias l'eSisto.hCe.
·open: sound levei becc lY\es h i'jh
F R6IS-~ n!Si~l1lnce ~
C6~D
Noise ab-;orb
·shot"t :hO SOUI\Q
I -I
.---- R607, C60q ----, N~t;ve teed ha.ck 'resistClhce
(.612. DC c.u.t cOhde.I'ISIt.'f"
. open: sound level becomes hi~h
Boc~;, conde.nser
~6DS',c608 Coupli~ TeSls~n~
and cOhdenser'
'F-bOS" O~} ·c.oo& open :no sound. • II shari
.c?~n : no souhd
ColO ---r
Couriil\l cohd~sel'"
'opel"' : no ')ound
T602 --...... Audio ou~~-t tT"(lhsf.
·open: no sound
"Rbi 1 ------,
BillS Y~stl1l\ce ·o~: 1"\0 Sl!l.Incl
1)601 ---, L.Ft diode ·open: sound !eve I
becomes low
R607 ISOK \
C609 .015 200V MY -
C60S .OI5MY \C610
..--;---;-""Arr--; i--+---+-----"W'r-i . 4 7150 8 P
R617 470K
R615 47K..l.-
~606 .018MY R603
~ 68 ~
~R61a 1" iaOK R6J2 ~ 2.2K
RG04 IK
\
IC601 HAIII07l AUDIO
"R6D2, R604
R608 220K
R609 6.8K (V X601-
R610 ........ 560 L7 ~ "='" -,
GC:- 4000A --1 r (M.\8 FR6011 (J (00 I
112FRI I I
t + l C613 . 14.711601 I or
R61'T. Rbl8 ---,
Outfl4t voH-C\~e di"idih~ rec;istc~hce
.J 101l6~
fa 81 IIOV
,...--- c6ob~-.... R603,C60S"
Filter "Dc. 'Input condense.r
CbI4.C6IS -------"1 Noise absorb
To,,~ ~uQ.lj ty c.orrection
. short: Y\.O SCUtlQ 'R603 cpen :no sound ·R{,o2 open:sound level becomes
hi~. VR does hot function.
'RbD4 (lpen: sound Ie. vel becomes 10 w.
. (;614 short: soul'\d level becomes hiljh. VR does hot fundio/\.
.c bll,; ~rt: sound ic.; not Cl",dible unless VR is "turned at
least ho.lf way.
AUDIO CIRCUIT
XboZ .X603 -------., Audio out ·open:sound level becomes
low and lacks bass.
R613. R614 ---~ BOola t\c~ fesistllnc.e • open: sound leve.l beComes
low and lacks bass
;<601----. AudIO c!ri ve
·open ~: 1\0 $Qohd ·short 1
FR601. cbi3 ---,
FilteY'
. FF-(,o\ open: noSouM
CIRCUIT NOTES
Although specifically written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.
10
• 1'10 piduye
T30i ---, BP take~off transf.
,---- c302 Br-~~ conQenser .open: colD\" beccmcs
$rk 'short; no color
R!oi---., Dumpi~ ~is~nce
"open :c%Y error
4Vp-p
C303 N:.c smoomlnj • open : no ~clor
R3,-3 Emmire~ ~ ... -tGn~1e
- C30 4-Cou~in3 Cl)ndens~r
.open: hD coloy
"sheet: no picture.
c30S --..., K i \l~ smocil\,'i . .:yw "\: ltO ~Ior 's~rt\
C304i:C305 180 -.45/50
R328 1M
R302.R303 Co\Oy c:orrec.tloh (bleeder feS'StllllC~)
color i~ 'R3Dl open: faint
'R303 nDf!Tl: color is ·r _ .. dink
R304, R3DS, R322 tl\'\t c.orrectlon.
(bleeck.r ..-n\S~)
·R304 ore"': Yec:\ ro.steY' be.comes lnDihel11'o...
'R:30!) 'f"'l Hed bf.CDtneS "ftl,,,t. ~ beCCl'les bi ... e \:)ecomes vic,e.,-.
·R311. ~ : titlt VR doeS !\Of: fu nc-U on
R.321 .-____ AAr...rIK ___ _
+ 10.7V C 316 z:::
10116 I ~
/
I
R316 221<
·only tnDl1Ocln·omAtic.
·no ccioY, edDY -fad~ away
·no monochroma.tic..
+.d- IC301 HAII247 B.P AMP, ACC,KI TINT, APC, VCO a COLOR OEM
I .' · fnultr tint
"c.cicr no;SE!
• cclor el'"rcr
. faulty color sync.
. czlcr beat
·dc. ..•
.----c306 Diff4e~n"ti4TeS,'5rnc. si~ ",,\, a,"'cl
clela.ys fho.o;e of- pllise. 'OI'en : r-o"coloY
. short : 1'0 pIC tttYl!.
dark yaster
TP~5°1 I ~ 0301:!: I
S2473H ~5~6 C306 180 T ~ ~
0302_. ER, 1 S 2 47 3 H ,-c~r-...:.::I 5::.:.1.:.55:,:5::.,
0303-0308 W06-A,W06-8,151555 R310
L351 330 ~~-+----------~~.-~
or 1512473
22 0307 I R311 330 I ~----------~------.-~~-+-~
0306 I I R312 3301 G~53--~~~I~~~I--r-~I-~
R314 22 :. ~ • J30g 2.2K ~ -:- ..!...
R322 ~ 10K
030'1, R307.R30!i'-L.----. For phase shOt ft
C310,C311,C312 ---,
'By" p'l~'" condl!nser
-- D 30 I .---I.~-,
Foy noise prevention
.shon:: c:oloY' errOl"
'C30'7 short :5C~n bec..::m'!s bei'.1ht \:I."t ho ccjOl"
'00'7 opt'll } obtain~ "R307 open :no color "R301? cpen
(ootp'lt "IT;.. ba.se-~TCu.ncied with T6rect to \U7'O\i"o."c:e sl'y,a.I)
. <:310 shan' no caree.n Y'IsteY
. C311 shcrt: hO red ro.S teY
·c312. short: no bilAe. ra.s!er
130 I. c 30 &>,R3o'7, c309 -3.s8MH~ filhr
·'('3ot o~n ,';hoT"t }
·c308 op~" :tlO colo ... 'R30'1 open
'C 3017 ope ... , sho~t
G3\3,C 314, R3\3. R~\4
APC s",ooth~,,:}
'C313 Shod} .c314 shOTt :1\0 color
. R 3 i4- open.
~- L351,L31>2. L3S3
t\ ;,h t"re:tu'!n"ff: It ~Y"
· L?S \ opQ.n: ydlcw fictu.re
· L ~52 ~ :cpM;c.richll't.
· L3S"3"~" :m<l1"~l\ta ftC. tun~
COLOR DEM. CIRCUIT
"f..301.R315;1~3 1.6. R3f'7 R3i'iLR321,C316
Su.~r-scene ccnh-ol
'R~15 open.
"R 316 open Got\t~st 'R31'T oru' becomes .R32\ open weo.k ·(.31b short ·xaot open
CIRCUIT NOTES
Although speciflcally written on the 170 1 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences In com-ponent values and Identification.
D302.---..., Be"'" I:",iter diode . short : br;~h+et1.
R310,R3i \,R3i2 ----,
Ie pl"t'tection reSistor
'R310 "pet: yellow i';ct ...... e
'R311
·R312. cpen: cyanic p;cture open. : 1Tla.'Jhent~ t
1 pIC ure
D303 ....... D308
Roted,on. of Ie frt,.,,, CRT SFl'ki"~
·E>303 short: bllA4e picture
"i) 304 short: · .... ed pIC Tt.U'e
,-£)30 S short: ~reet'\ fic rure
1 1
CHROMA OUTPUT CIRCUIT
~ RI23,RI'2.2.RI24 ___ .....
X\ot ~~ . bl",e ©~ShOTt yo.ster
®~short no blu.e
ope.n Yo..steY"
RI2S',RI26.RI2.'1
u,r.a.t YeSistanc.e of base
'RlZS oren : ho b",\e raster
·~1'2.6, open.; no ~~e!l. r~ster
-RlzCf open! \10 ye.d rtlstl!:r
"R12.1. RIO'L Rill
D-r,ve adju5tm€:.nt
·RI2.1 opm: no biue Y'Ct5ter
'Rlo9 0pen;ho red raster
'RII! open: i'\o ~l"een raster
x 10Z XI03 Rill, R1I3 . RI14 ----. RIIS.Rllb,RII'1---. L103.Llo2., LI04
nd ~reen Olltput Tr colle.ctor ioad resister CRT cathod 'reSistor and Tesist.:>'" for j'l'riecti~ DI1tputTr frD'" CRT sparki"
'RII S' open: no blu.e. 'r11"5te.r
FYe'!uency chayt\c.terlst;c. To-ster
no red Yo..ster
'raster
110~ree.n.
'(llSter
RI21 150
• R,ll L open: SCTeen of bll.le · RII:3 open :SCfecn of red
• R 114 opel1 :sc.reen of ~\'~ert
. RII b open: no red Ytlste.l"
.RII'7 open: no ~reen yaster
iCRT SOCKETi
I
I J
I
VOl
: 370ES822(£ ) or
I 370FV822(E) RI02 RII6 I ,
_5KB 3.3K RII2 ~ Rlf7 112S 12K 2W ..... --+-+0....,.---.
3.3KI/2S I 158V {160Vl ;~ ~.~'R2
XI02 RI13 19~1 fr~ RED OUi'2K 2W ; r"l !~ ..." I (;r:- I ~lI.
RI031K i ~ LJ "'1.-._-Rloa " R CUT OFf) (H) ~ "=
~-__ .JW\,--+--J 180 RI14 J-'I f:rQ~ I, l ~l~~ 12K 2W L-.J -AC150
LJ,JVv-__ --I-~-,..,........:....--X-1 0 .... 3--" I (H)
RI05 GREEN OUT 7L'0' IK 180
r-...... ""'N~~IG CUT OFFI ~ RtlO 180 RI06 n+ GE-3000A
;;:;::;:::::::::;"t~"'fv..~'-.....J 5 K B z: C 10 I T I'" DRIVE! l~~I:'a _'. ~ !0I250;._R.,1~~~ET I
RWT. Rlo8, Rlf 0 Cl0 3.CID4,C{o$'
R(OLRI03, RIDS' Rlo2,Rto4, Rlob H B s",ooth,n~
co t'rl!.cti on.
t:",m~ter 'I"e sisto. hel!. 1: ",,,,ite O(esistol'\c.e .oreh :sct\!en IS bY~ht
a.nd dr'll~s ta: I ftl Yi~ht.
Ltol ------------~
K1h fre~ll~ncr ·filter
·open: screen IS bri~kt: o,l'\d dya~5 t",i j to
y;~ht , F9uencT ChClYnderiS1ic. cor~tjol1.
'Rlo'1 open; ho b (<.Ie y(\ ster
'RI~ open: no -red rQster
'~1I0 open : no 'jr-eel'\ raS ter
·C10..3 short :screen cf bi",e $O.turate
·clo4 sJ..ort :screen of red Slltl4yat~
'C IDS' s~rt :screen of ~reen SAtu.rate
Cut off a.djustrnent
·RIO I open O} weo..l-en ° Rlo2. open . i>lu~ r~ster
• i<. 103 ~1. W'ea.ket\ 'RI04open r yec{ ra.ster
'RloS opo!l\l wea.ken ·R.lo6 opo::tt f; ~re.et1 raster
CIRCUIT NOTES
Although specifically written on the 1701 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.
12
R04tRO~ Colo.,. contT'ol
'Ro~ 'fen: COLOR VR does not functlon.
Rot.R02.R03 Tint c.chhol
'ROI open} . L.~_ I • red IJ<;YJIY\4t s
'ROl!fen . ,,"Q~entct
ROb. RO'7.KD& Cmb-a.st CDhtrcl 'Ro'! open ;VR does hot
functiol\ when c.ontrast is stT'O~
RO'i.RIO _.----, BI'!eaer 'rl!~istlln(e 'RO~ 'fen: no raster ·RIO epe" : scree", becomes
abnOT"lhllily bT'i~ht.
-RII.RIZ.RI3 ----,
B"r i':}ht c..Jntto\ • RII opel\:screen beCDmes
s\;~htly do;rk. 'R13 open :BRICX:HT VR
does not func.tion.
;~:~~~~=i<C~O~L~O~R~):~~~C~O~N~T~)~~~~.~r-~--~--__ ~ 3
~~~ ~ RC4 \ ROa R09 ~~K / ('-V-CL-U-M-E) IOK8 5.6K 470
(8RIGHT) 3
RI6
CONTROL
RK- ,RIS" ----------. V. Hol<l control . Rlf ore" : when 1/. HOLD VR is
turned to ""'(lX, vert\cal oscillatio n beco/lll$
minimlAIn (approl(. 3cm)
Rib. R2~ -----, H. Posit;Oh cllrltrol
I ~ "'-R03 R02 IOK8
RI2 IOK8
Rt4 6.8K
5008 l'-~H ·Rlb Q)open: f~L4ltl
hoYizDr 10.1 sy'f\c. B2K (TI N r ) (V. HOLD)
R23 1.51<
1l I ,
R2: 4.7K Ria
~ ISU88RIGHTI 1.8K
RI9
::~ ____________________ ~/~ ________ -+ __ 2_._2_K~ RZO 470
12V
.GE-4000A
I I I ,
R21 2.:"1( CONTROL:JCB '. A'SSY .
~ :
L __ R22. 'K23 - ..... 1-.....
Su.b byi<j.hl: c:.onhol
R23~:no raster
- R\~.Rlq, R20.R2\ ---'-...., Bleeder 're<>istarlce
• F: \~ ope;,} screen bec.omes . P.l'1 open ;sli~htll da.rk. 'R20 o~n : coloy is faint. ·R2.1 0Fn.: screen becomeS
sli~.htl)' bri~ht.
CIRCUIT NOTES
Although specifically written on the 1701 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 achernatic for differences in component values and identification.
13
r--- C402.VertiCllI osc.lllcrtor
condenser 'll,pett}:OI'Ily sit'l'jle ·shOrt horizontoJ line
r---R403.R404 ---------, r- v40S V~'rtic(ll oscIIIa.tor bia.s circ.uit A nsoYb of Q, bhOYm~( 'R403 open: only Si~1e horizontcll lihe. V()1+~<je -R.40+OP~": when 'J HOLD VR is ttlrhed.. V.BLK
I H. OSC, V. OSC & V. OUT CIRCUIT I r- R416,C40~ . R4Ig
r-- CS'OI ---~==:::::~"'--I b~Qck bo.hd ""ill a.ppeo.\"', o.nd scree" .--R402., C40S --.:/------_-, r FR4-0i • cA-!'? ----..... r--I¥.'-IS ___ --:
:~l~ ~P:::~~Znt~o.b\liu: .flicmi"1 lhh!~.,.a.tin~ drcuit R414 , hC40g Base biaS -resiSto.hce For 1o.l<.e-off V. BLK pulse
Fo\'" pTeventin'.} verticil! sync s~1\Q1
. open : iUulty harizontai sync. Vee.. Sl'J\Ctk''':f ·c~s short} :falll+-.. " 'FI~401 Of'!1\ } •• vertieo.l o.m~itl4de 'open :'Jertico.l runpiitude
;- R40i.D402 ,C403-1/ (veT tical sy,..c si~nlll nice-off) SMoot ~~ of X40/
·R41b open} :flyback Ii he appeo.rs, ·C40Q open
. short ! picture is shift to l"i'aht.
~C40\
:i)-402.siIotil.0hlr si"SI~ .c40S 0rel\:when VHGL'P VR is tu.rned flllly 'R41+ of'\!'" i .. smo.lI. <approx. 2 C1rl) o.hd stat.jhzatiol'\ / .c4-04 open " Vtrt,cal srnc• is Slna.U •
.c~3shortJh.,rizont41 ri<Jht, it is possible to fold b(lck (o.~rcx. 1.J;;c1n) /
'R418 open: screeh becomes
sii~htly bri~ht
Condenser for p~ven1i~ verticD.l amplifier oscilliti"3 '--"-T' ___ '_in_e_---' o.t Cl stnctl( alllpIitude(apprDx. ho.lf) 1
1 1- I,' r ../ I r ~A" ,. A ~A / I X4fO©'
-81'-11~0-V~\+---/~-----~C~4~0~3~i.~-/iR;4;!8~~;2-i~-~c~J~o~~:y7~-41~J=2='=O=V=p=-=p==~~=~a~8=v=p=-=p=~---------~~~~~vF~R~4~ ~~ ~w ~~ / I ~:~ 45~ IOO/~~R401 .033 lill JLJL 68FR IWOMR IW'OMR _1
LC402 ~+ ~402 h ~ V DC 2W ";-C412 +C408 T.~1;~9Io0V MY - I I +n'i-
1061'
=-C501 lID ~2.2/1~~ r~* "'~ltOy4 ~ ~11 (v) ---a.3V (V) R2il~ .:c_ 3.3/16o<ZlZ14.7/50 1 Iii :!:1I.420 .001 C4011 TANTAL + RDO"(C) / / s- D40li \0 112;5
~~O ~IO.I. # ~I- R411 22K I + ~~b~16 ~ J I rv:?OSiTiONl IS2473H. ~ -" TANTAL # ~ 0405~ zt:C407 t;:-13----~~'--tl--""=-D:-S:-0+k;~w"':'0"':'6-.A:-------·'-___ L:
1
-+L-~~:!:':.~/2.~B~5~0~K~-~1 X402r V
~v ,#'#.. R405 _I"'" 1 ~~~~7 R036E l 1,3.3/50 680 -.l .. ",,+ I ~~s C411 1 22~41~1 ri R4!2 1 O.SV
4V IV \ 3.6V 6.7V I/V~~:p: 5V !0.5V 12K IV.LINj , ~ """ \ 1s~;m; 47116, 'v l~~F 100llSO '(opnCN) ~ ~ 5.5K = I 2 3 4 5 6 7 8 +~'i2 \~R471 T503! ?1--....... r..-----4~.!:.....--4J~_:r4--~i~----:---+I .... • ...... -";:>'-!W!....l.<OM!Z!R!:l..-
, - .... C406 2208 '- -$R40a ~681/2w SIDE PIN TRANS!~+-l---+I---------,::-::-:-:::+---~~---i,f------r-L---'---'j I ?200 'V (OPTION' I -- I R4 19I,.., Iv. AMP .1 J V.OSC I -=?".082MY R410 2.2K 112S~\r-,-~~--t-----
RS29 R403 ~ R:~9~ eMF "SInOQthil1~ c.ondenser for DC vclta~e h~atjve :> ~6.a IW, C401]' --------____ ......
100 J ,d 4.7K - ~" . I l't d' I feedback PHASE OET H.OSC WAVE FORME.., IC50' ,--=---, ·open:vertICCl o.lIIP' u e IS Sinai (o.pprox. 6 em)
IV. HEIGHTI .short:only Sinale horiLonta.1 line , HAII244 J
16 15 14 13 12 /I 10 9 H.AFC, .-R40S -......... r-R410 ________ --.
TP -338 12.2V 6.6V 3V ~~6 6.6~I2.SV 1.8V ~. °V.SOCS C X 5 ° I I Discha~e resistor f::r vertical AC c.urrent detection resistor
_4.7K R ~O 5 osc.illo.ticncondenser -open : only sinjl~ horiz:onta.1 !,he ... .-~ \¥-y.J1 ~ 7.5K O.3V '54. 2\/ 'open:only Sif\~le hcyiLcntal lin~. (hcriLc1na.1 lin~ is kicks upward
• _ _ (imo.se appears at lOP haif of RS02 C508 ,y I>"" SCTl!.en at ,nlends of aOc<lt in a.bout 1. second)
~.,."..,. .... 6 a K .0056 I _ // one sec.ond) CS04~t'"" :~ ?P 0.8Vp-p ~ /
C503 1150 + C505 ri ,...,.-, (~R506 ..-L-R40'T ----------, .015MY -~.... ,~3l R 503 I I ! I I • 560 I Resistor foY AC current, ~ xsol __ --,
II.aK I 1"1.> I~...J I i \1 _ neSlltive feed ba.CK --- • dy-ive R501 ~ 1/4 CMF ? r---' ·op~l'l: top haif oniy of sc.reen is 1-!01'Izchtai
TP<r-.33A 5.6K"?- [>-R504 '- (H) ed Ah}' I --... etCp.sSively E!\o"'So.t .ap' : no yastet-
47K ............... -short no sound HI. ~
C506 m: MY, I ...... HOYizohtal asci II" t;on e\ e""ehi-331161 'Y st r
cs IS, CSI'l . CSQi', TS03 ----.,
Fonno.tion ,rr ~YQ.bolic wdve (side pit' cotnllensa.tion)
'(;SI'> o~" \ :cnly s;I\Qlt verticall'he '1'S03Snurt J d
·C.Slrt ~n l.:hociz.onto.l a.mplitu.de shrinks , ·Tso3.;V~ 5 -eSI'I J.cd, :t,,\, po.rt of screen is rnissit'lq,
~D;06 I P-revention of capacitor d'ropout due to o.pplict\-tion of reverse polo.rity volto.~e to C51'1 and C5\8
+ 1+ ±\I.~?J JH.FREQjR35.90K8 lO~5~: OM;;-------...I_ -C~08',Rs-o:3,RS'04 1 ·c!>c)~ open : no n~ e ~12.7V 0701 I no sOIl ..... d
R701 HZ20'V, HA 11244 TROUBLE SYMPTOM OF PRESUME -
X701
- __ ~I§]
~ XfjO! -----, X - R.o.r ?I"tectc'r ' @-<W !ohortl.·f1D Taster .@-<f)sherd· no sound
-eso1. Rib .~ZS'~ ... tcoth wave phase
adjustment
-eSOt'! cpen ( : Imaqe shift • /I SI'orl to Idl
4.7K "") A~" I~R~02 1 .... " . R';03 H AFC outpllt i~ection resistor "$. + R704 ~ 41.2K iI.l. ·open :fo.llity horizonto.l sync. .. C701zz;:z 953K CS27 1/2CMF R527
100/6.31 *1·1. OOI5r11----. "#' ? CMF * ~5C5 L..c..... I';' 8,·A2,.K 1125
\ROI I (r::l) .,f,.t'_ --til )~ __ -4I>-t-+-j-----4'Vv'v-v- .-((52'1. CS2'7 ------,
~t .. -----. ~l~ • -- Pulse phase settih'J I ~ -RQ.'T ,)pen}: ;",o.~e shift
~ RIJ'OI ,R'703.R7o4 'C52!T open to ri~ht, SO~,Cso4, RSo/ - r-CSOS. RS'08 r- C'TOI, D'701 - ' <'5'2'7 sherI:: faulty hori:z:onlul
HAFe output vo\to.~e S~wt~th wo.tIe ~eJ1era10r Ab"OTmo.l B1 voltaqe Smeothi n~ circuit CirCUIt for comparison wave detection
C ... optn ·C~S.R5Dg O"""}. I h' 'I -R'1040p.!n 1.M ro.ster . >O'T l:f!1u.lty hO~;ZDnht( r'" :liW.tJ onZOIlTa . '~')Ol open 5 sync. elf top half. .c')os short sync. '0'101 short no sound
' C504- sl-Drl..: fo.ulty horizontal \
r-D!>05 Pulse ampiihlde \imitter .open : imo.~e shi ft to ri<jht
·short: fa .. lty horizcl'\t(l1 syt'IC.
sync:.
<. HoRIZONTAL C1RCtIlT>
· H. oscillo.t;on stop (ho ra.ster , no SO;Ji1'\)
· fa.uli,! H. SyhC .
· o.bhOYmo.\ H.oscillat'on
< VERTICAL CIRCUIT)
• V. Dsc.llo.t;ol1 stop
(sil'\~le. nOl'i:z:ohto.l 11he)
• fal.llty V. sync.
· fo.L.llty V. ampl; tu~e
· f~u.ltr v. i'heari+y
,-X4CI, D4CI, Noli' _...1..-__ ---,
Vertical output
'X401 open} .vertieCl! atnolitude is ,D401 shan : S' 1(- - ' , mil , ImQae (lpi>ears 'C4Cl/ short , J, r
below center of CRT_
CIRCUIT NOTES
Ahhough specifically written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.
14
HORIZONTAL OUTPUT CIRCUIT xo1
r\orizonto.\ outpu.t
-open: 1"0 y~ste.'r hO sound
C$12,C~J3,CSI4 C 530,C.531 ~ LS02,RSZ8
I HOl"iZDnta\ linearity Ic.orrect ion coi I a.nd Ido.mpil'\~ resistor
,.--- R~6,Rs-17 ---, For beam limiter detection
:- cSlq I R~26,cS-20 ;
Sh'\ooth ..... ~ T 5"0 \ ------,
\-\or il.O""o. \ dyive 1vo.nsf.
. open. 1- 1'10 yA steY" L rt . no SOU Y\d. 'sno
r--- COl -----.,
"Prevention of unwll"\,ted ,(Cldio:tion
Resohance condenser for FBT ·opel'\ : horizonta\ width
is small .\.Lt:102 op~n: sin<;Jle
vertical lin~
·optn.: scree" becomes
$\i~h'tly d~rk 'R~26 Of'eh :screen becomes
dQ.l"k
IMl I< 5"10, c. 1;"0 9
)(S"O\ collector pulse clipper(for protection)
(H)
C51: CSl4 ISOO 1500 1.5KV 1.5KV MPP MFP
MPP
C530 C512 I I J. I 510 1500 - - - - I 5KV 1. 5KVT TTTT . MPP ,
I I
1/160 +
T502 F8T
[,oii~----~T-i}---'--</<H'V II I II I I
ct;24,R~20.R~21 ---,
roY" tllkl~ off H.BLK puke
. C~4 O~I'\: top ric;}ht of screen is tnissih~
. RS20 open : tol' laft of . scree'" is tniSS\n~
6 ii i - -;- - _L.........r~.....;.-/-_-'I_~
II I 'IRS26 7 II IK 1125 ~
II I +I 12V II I C520~ :I ) lISOI
C531
IS~~/ il ~8P~
"-+-~--++--."""'--1 I-----'M I R520 R521 '~f
,..--- RSII --..<:....-,
l1orlz.ot\tal dyive colledor '010.5 supply a ",c\ fi Itey
·open: no "(~stey hO sound
C511 +147/160
.R511 • 6.aK, 5.6K or 4.2 K (S.2KK'S,2K PARALLEL>
ct;ll
S""oo\hi~
.open : ext~nc!s Up Qhd dow/'\ 5ii~ht{y
cS"23 , D~07. RS2~ Hori~ohto.l lihellrity
(.Onec t ion
1./
CSI5 ----., S-clArve correction .oren: sin~le vet'tica.\
line . • c:. S2 3 shorf; dl'ifts t o ri~ht
/
0507. 10K V09·E I 112
• 050:\
HF·I RF·I or UF·2
1-- _2
,----- 1) 5" 03 ----, BH volto.de reet; fica.r;on
.open : screen bec.omes o.bnormt4\1r 'oT'~ht o.hd rlyba.ck \;he o.ppeays.
I' 5.6K 1/25 39K II ,,---<.J....,. ,I II II
I II L ___ 3
I RI I
r--....l.-- R S 14 ---...., roy vertical lineqyity correction
.o~n : hoyiz.ontal w;dth
is slishtly smo.lL
16V
0504 UF--2 RGB-IOG VI9E RS ·1 RF·I
,..--'--- L 5"04 --CRT "eo-ter applied pulse value adj~stmet\t ·
.upen : no 'raster
RS22. £> ~o4 ----, Bl.(I'2.v) n~ctif;er and protec.ts DI:;04- nOh' • .
'rtAsh cu.ne'nt
·open }. no ra.ster ·short . 'nO si:lund
CIRCUIT NOTES
Although speciflcaHy written on the 170 1 monitor. most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences in component values and identification.
15
Xo2 "powe.r ye~1I.1 ~tor
.no<>.n : \-0,.; U>nto.\ width vr - -,s ~\'"I\a.I\
G-© shcrt : '!\O 'roster 'nO 50u.nd
RO\ ----,
"Dlvide'r 'resistor for pro~ctlh~
LOI
DEG. COIL
C10l,C\02,C\03 J fo,- protec.ti ~
Dlol'it:DI04
0101-0(04 ,cI04 ,CIOf(
B1.. rec.tification and srnoothi I'I~
Rlo4, Rlos Srnoothi","~
X02
.---- R 103 ---.. l'y~vel'ltlon of excessive
'l'Ifut TO -X \01
..---- XIO\ Reali. \(lto'r d.,.ive
d hol"izorttQ.\ width • ~n. : .. s s~a."
2SC J tOGA or 2SCI454
~-<D) shan \. _ '110 ~stel'" ·e-® sh.:rt J . no sou ",d
~/.f ... __ POWER REGULATOR
RIOI PTH r----., , I
I I I
I I L ____ .J
0101 ..... 0104 ISI8S7A
CI02 .0 I
250 \AC
RI03 4.7 3W CMF
F901 1.25A
1I1V XIOI
IFRIOI .112 r:-' I FR 1 I : I I I I I
12SCI890A(E,F) REGULATOR RI 12 DRIVE S20K
~J
1 RI06 I, ISOK
2 + + ...... .:.-....... L-...... -JV I I RI04 I CIOS RI07 ~ ~IOK ~ 10/160 33K
RIOS 47K:t 1·1.
CI04 7 -=-ZW - 0105 'i:XI02 30IK"!:'·I.
~330/200 OMR RD6.8Ev12SC2688 CMFR
~~3!~~ 200 (K,L,M) , .1 = ERROR ~
Red
LOI, COl. C 02 L-Lne f,\te'('
(fo'( ?'(evC\t;n~
1I'''''llnted yadio.tion)
- AMP-.................
GE-9700A FUSE PCB ASS'Y
COl LO I .047 125V
~--~ I == I
N€UTRAL
FOI 4A 125V
HOT
IZOV 50HZ 160HZ
RI;3. C\OR, cqOb
£,(I'or de1ect1on
V()\tQ.~e filter
Rlob ----, ?ror~t;l'I~ XI02
)(102. ------..,
EYTor Il.".,p. ·O?~~1't }. 1\0 r(lst~ '@-<\)short • no SOIolnd
·©-<?)sho,.t: }:hofi:Onfili width -©+)shol't .S sl\1(lil
f~\OS ----,
Cohee tel" bias resisro.~ce of X /oZ
'op~!n: 'no raster no soutHl
R WI ------, BiQ!> )'esisr~nce
of D IDS"
DIOS EpaI' volt~e
st"'hc:;{o:rd. Z'2l1er diod~
F:Z i 0 \ ------,
BOose Ir>put resiSTance of X/Of
·ope!"', :hQrizontQ! width
;5 small
POWER CIRCUIT
CIRCUIT NOTES
Although speclficaUy written on the 1701 monitor, most circuit theories apply to the 1702 also. Refer to the 1702 schematic for differences In component values and Identification.
16
TROUBLESHOOTING GUIDE
No raster, no sound (B1 is normal)
NOTE: 1702 locations in ( ).
[Cause] Horizontal deflection circuit
Problems in the horizontal deflection circuit hinder generation of high focusing voltage, BH 160V and B2 12V, resulting in no raster, no sound.
1. As long as normal BH 160V is generated, the horizontal output circuit properly operates, producing pulses during the flyback period of the saw-tooth wave current passing through the horizontal deflection coil. If a problem is found with normal BH voltage, the problem area should be the secondary coil of the flyback transformer.
2. When the AC voltage between base and emitter of the horizontal output transistor X01 (0522) is about O.SV, it is supplied with input pulses. The problem is therefore in the horizontal output circuit. When, however, X01 (0522) is shorted, this AC voltage is not indicated even if there are input pulses at X01 (0522).
3. AC voltage is measured between the collector and ground of X501 (0521) horizontal drive as shown. When the specified voltage is shown on the meter, the horizontal output circuit is the problem; while, when there is no voltage indication, the trouble is in some element(s) preceding X501 (0521). Check if those transistors and les are damaged using a voltage measurement.
C START
t Vc. VB at X701 (0501)
• ABNORMAL
I X-Ray protector
Check X701 (0501) + NORMAL
Is normal BH 160V generated?
NORMAL
+ + NO
IFailure in T502, L504 (T01, L523), Check Vc at X01 (0522) ABNORMAL (Trouble in horizontal or high voltage module horizontal output transistor output circuit)
• Approx. NORMAL ,
Check AC voltage between base & Check short or open of X01, 001, C512, C513, C514. C515 (0522,
emitter of X01 (0522) horizontal 0522, C526, C534, C535) output transistor
More than AC 50 V +OV AC _ 0.8V"'Trouble in horizontal output circuit
II
Check breakage of T501
I
Check AC voltage between Check T501 (T521) primary coil,
(T521) collector & ground of X501 r- R512,C510,X501, R503, R504,
(0521) horizontal drive R505, R508, C508, IC501 (0521, IC501, etc.)
17
No raster, no sound (81 is abnormal)
NOTE
1702 locations in ( ). The regulator PCB assembly used in 1702 models differs from the 1701 power PCB assembly. The B1 voltage circuits should be checked beginning with IC901.
[Cause]
Abnormal B1 voltage indicates trouble in the power supply circuit. When B1 voltage is not only low but also abnormally high, X701 (Q501) of the X-ray protector is turned on, setting the collector voltage to 0 V. The horizontal oscillator is then disabled resulting in no raster and no sound.
1 . When D 105, R 105, R 108, R 109 are open, the base voltage of X 101 and X 102 rise to increase B1 voltage to more than 130V. This causes the X-ray protector to work, resulting in no raster.
2. If the base voltage drops as when R103 is open or C105 is shorted, the B1 voltage is reduced to less than 40 V. This will mostly result in no raster, no sound.
3. When the B1 voltage drops to about 70 V, because R91 0 is open and D1 05 is shorted, the screen becomes dark and the raster size is reduced because of insufficient horizontal and vertical amplitude.
C START )
! Does 4.0A fuse blow?
,NO ~ YES
Can B1 be adjusted to 110 V with Rectifier including power supply I B1 ADJ R109? transformer has failed.
YES r----------------------1NO
Misadjustment Horizontal deflection l Does the base voltage at X101 change I circuit has failed when picture is with B1 ADJ R109? small with B1 = 110 V.
t NO t YES
Is the emitter voltage of X102 Does the emitter voltage of X10'1 correct? change with B1 ADJ R109?
+ ABNORMAL t NORMAL = 6.6V NO ~ t YES
D105 open or short I X102 open or short, R105, R108, X101, R103
I X02 has I R109 open. C105 short open failed
18
No picture (no raster) with normal sound
NOTE: 1702 locations are in ( ).
[Cause] Malfunction of the video amplifier IC201, X202 (lC201, 0201)
The video signal and the audio signal output are supplied respectively to the video amplifier IC20 1 and the audio circuit IC601 . Sound is had but no picture; therefore, the faulty part is IC201 and its external elements. Since pin 16 of the IC201 to the cathode of CRT is connected by a DC-coupled amplifier, a fault raising the emitter voltage of X202 (0201) will cause the three initial ouptut transistors to cut off, resulting in no raster.
Check also the screen grid circuit for igniting the CRT heater and the high voltage module.
No sound (with normal picture)
NOTE: 1701 - Flowchart 1702 - Audio circuit has been reduced to IC601.
[Cause] Trouble in the audio circuit IC601, X601, X603 or X604 are faulty.
• C60S open • IC601 is
faulty
NO
How is 110V collector (Normal)
voltage of X602?
OV
.X602, X603 short
.FR6010pen
• X601 (open I
• T602 (shortl
• X601 (shortl
19
Only single horizontal line, normal sound
NOTE: 1701 - First check if FR401 is broken or not. If this is broken, the trouble is due to short of X401 or break of 0401 .
1702 - Circuits in 1702 monitor differ but the operation remains the same. Check vertical controls/deflection circuits.
[Cause] Malfunction of the vertical deflection circuit. When the vertical deflection circuit is faulty, saw-tooth current is not applied to the vertical deflection coil, resulting in a single horizontal line. During troubleshooting, reduce brightness contrast to prevent an ion spot on the CRT.
1. R401 broken, C403, 0402, C413 short: 82 12V is not supplied, disabling IC501.
2. R411, R412 broken, C407 short: the voltage at IC501 pin 3 is set to zero disabling the V-amplifier and the voltage at pin 2 is set to zero to turn off X402.
3. R414, R415 are broken: VB of X401 is zero disabling X401 and X402.
4. Also check if C402 is short or open.
5. Too high VB of X402 is because of C401 short or failure in IC501 or X402.
Note: When the voltage generator fails to supply 82 12V to the secondary coil of the flyback transformer of the horizontal output circuit due to malfunction, a single horizontal line and no sound will result.
( START )
I VB at the vertical output
;- transistor X402 is nearly r---zero
Vc. VB. VE of X401 and Vc of X401 is very high while VB, VE of X401
Vc of X402 are very high and Vc of X402 are (more than 100 V) very low
R401, R411, R412 or R414, R415 broken, R413 broken. C403, X402 short, 0402, C407, 0405 short IC501 faulty X402 open IC501 faulty
20
[Faulty parts and problems other than described]
X401 open Vertical amplitude small (6 - 8 cm) D401 short Picture appears only on the lower half of the screen C408 short
R403 faulty A single thick (ca. 5 mm) horizontal line
R404 faulty When turning V. HOLD, a black belt (V blanking signal) appears at the center of screen. The whole screen is dark and flickers.
R405 faulty A single horizontal line. A picture flashing at about 1 second interval appears on the upper half of the screen.
R407 faulty A picture of about 4 cm at the center of the screen. About 25 irregular lines appear on the upper half of the screen.
R408 and Vertical amplitude small (about 15 cm) R409 faulty
R410 faulty Vertical amplitude small (about 2 cm). Picture goes slightly up and down and flickers.
R416 faulty C409 open Vertical flyback line appears.
R419 faulty Small number of irregular lines
21
Improper horizontal or vertical synchronization
NOTE: 1701 and 1702 locations are the same.
[Cause]
1) Defective horizontal and vertical sync:
The sync separator and amplifier consists of an IC(lC201). The main cause of failure is often a failure of the IC itself. It is also necessary to be careful of a possible failure of the external components. Because the change of voltage at each pin of the IC is extremely small, it is very difficult to discover a failed element by measuring voltage.
2) Defective horizontal sync:
This is due to a failure of IC501 or the horizontal AFC circuit.
3) Defective vertical sync:
This is due to a failure of either the separator and amplifier for the vertical synchronous signal, or the vertical oscillator IC501 and its peripheral elements.
START
8.8V R le201 NO pin 8?
YES
NO 9V at IC201 • C201 short pin 9 ? • R106 open
• IC201 faulty
YES
• C202 short • R201 open • IC201 • C211 short
faulty
22
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
1701 CHASSIS PARTS
LOCATION DESCRIPTION JVC PART # COM PART #
OY01 Deflection Yoke * CJZ6134-00A
J01 Pin Jack Vid In C39Z27-224
J02 Pin Jack Aud In C39Z27-223 L21 Oeg. Coil * A39477-T
R05 Nonflammable Res. 220 ohm, 25W, ±10% * QRF258K-221
S01 Power Switch * CEX40097 -002 SP01 Speaker EAS-10P225S T01 Power Transformer * CE30074-BOA T502 HV Module * CJ26107-22A V01 Picture Tube * 370FVB22(E) Sub:
* 370ESB22(E)
X01 Transistor * 2S0869 Sub: * 2S0898
X02 Regulator * 2SC1106A
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
1701 CABINET PARTS
LOCATION DESCRIPTION JVC PART # COM PART #
1701/1702 Front Cabinet C 314900-01 1701/1702 Front Cntrl Panel Door C 314901-01 1701/1702 Power Button C 314902-01 1701 Front Name Plate C 314903-01
1701/1702 RT Side Handle C 314904-01 1701/1702 L T Side Handle C 314905-01 1701/1702 Rear Cabinet C 314906-01 1701/1702 Rear AN Terminal Assy C 314907-01 1701/1702 Top Cabinet Panel C 314908-01 1701/1702 Replacement AC Cord * QMP1460-244K * C 314909-01
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
23
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
LOCATION DESCRIPTION
INTEGRATED CIRCUITS
IC1201
IC1301
IC1501
IC1601
TRANSISTORS
X1101
X1202
X1250 X1301
X1351
X1352
X1401
X1402 X1501
X1601
X1602
X1603
X1701
DIODES
01201
01202
01203 01301 01302 01401 01402
01405 01503 01504
01505
01506
01507 01508
01601
01701
Zener Zener
Zener
Zener
MAIN PCB ASSEMBLY #GE-1000A
JVC PART #
HA 11401 HA11247
HA11244
HA 11107
2SC1959 (V) 2SA1015 (V)
2SC1815 (V, GR) 2SC1815 (V, GR)
2SC1815 (V, GR)
2SC1815 (V, GR)
2S0401A (K, L)
2S0401A (K, U 2SC2371V 2S0668A (B, C)
2S0668A (C)
2SB648A (C)
2SC1815 (V, GR)
IS2471 V-V
W06B
W06B 1S2473H-V 1S2473H-V 1 S2471 V-V R011 E (B)-V R036E (B) RH-1 V19E R011 E (B)-V
W06A
V09E IS2473H-V MA26WO (B)
HZ20-V1
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
24
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
MAIN PCB ASSEMBLY #GE-1000A (Continued)
LOCATION DESCRIPTION
RESISTORS
R1410
R1414
R1415 R1421
R1503
R1509
R1511
R1512 R1514 R1515
R1522
R1523 R1528
R1532 R1703
T1704
Metal Film. 6.8. 1W. ± 5%
Oxide Metal Film. 3.3K. 1W. ± 5%
Oxide Metal Film. 2.7K. 1W. ± 5% Oxide Metal Film. 6.8K. 2W. ± 5%
Metal Film. 11.8K. 1/4 W. ± 1 %
Oxide Metal Film. 10K. 2W. ±5%
Oxide Metal Film. 8.2K. 2W. ± 5%
Oxide Metal Film. 8.2K. 2W. ± 5% Oxide Metal Film. 680. 2W. ± 5% Metal Film. 8.2. 1 W. ± 5%
Metal Film. 4.7. 1W. ±5%
Oxide Metal Film. 18. 2W. ± 5% Oxide Metal Film. 390. 1 W. ± 5%
Zinc. 270. ± 10% Metal Film. 41.2K. 1/2W. ±1%
Metal Film. 9.53K. 1/4W. ± 1 %
VARIABLE RESISTORS
R1209 1K R1303 50K
R1305 20K
R140S 220 R1422 220 R142S 50K R1524 4.7K
CAPACITORS
C1202 Tantalium •. 47 p,F. 35V. ±20% C1204 BiPolar Electrolytic. 3.3 p,F. 50V. ± 20% C130S Trimmer Cap
C1351 BiPolar Electrolytic. 10 JtF. 16V. ± 20% C1402 Tantalium. 2.2 JtF. 16V. ± 10%
C1407 Electrolytic. 3.3 p,F. 50K. ± 10% C1411 Electrolytic. 100 p,F. 160V. +30%. -10%
C1412 Electrolytic. 3.3 p,F. 160V. + 30%. -10%
C150S Polypropylene. 5600 pF. 50V. ± 5%
C1511 Electrolytic. 47 JtF. 160V. +30%. -10% C1512 Metalized Polypropylene. 1500 pF. 1600V.
±5%
JVC PART #
ORX019J-6R8S
ORG019J-332
ORG019J-272 ORG029-J-682
ORV141F-1182
ORG229J-103 ORG229J-822 ORG229J-822
ORG229J-6S1
ORX019J-SR2 ORX019J-4R7
ORG029J-180
ORG019J-391
ERS-C05DK271 ORV121 F-4122 ORV141 F-9531 Y
OVZ3234-013 OVZ3234-054
OVZ3234-024
A76195-221
A76195-221 OVZ3243-254 A76195-472
OEE61 VM-4 74RZ OEN61 HM-335Z
OEN61 CM-1 06Z
OEE61 CK-225B OEM41 HK-335M OET52CR-107
OET52CR-335
OFP31 HJ-5625
OET52CR-476
OFZOOS2-1525
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
25
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com
modore part number (C314-xxx-xx) will be available from Commodore at this time.
MAIN PCB ASSEMBLY #GE-1000A (Continued)
LOCATION DESCRIPTION JVC PART # COM PART #
CAPACITORS (Continued)
C1513 Metalized Polypropylene, 1500 pF, 1600V, ±5% OFZ0082-1525
C1514 Metalized Polypropylene, 1500 pF, 1600V,
±5% OFZ0082-1525
C1515 Metalized Polypropylene, .53 ",F, 200V, ± 10% OFZ0067-5345 C1520 BiPolar Electrolytic, 1 JlF, 50V, ± 20% OEN61 HM-1 052
C1522 Metalized Polypropylene, 510 pF, 1600V, ±5% OFZ0082-5115 C1523 Electrolyic, 1 ",F, 160V, +30%, -10% OET62CR-105Z C1530 Metalized Polypropylene, 510 pF, 1600V,
±5%, OFZ-0082 511 S
C1531 Metalized Polypropylene, 1500 pF, 1600V,
±5% OFZ-0082-152S
C1610 BiPolar Electrolytic, .417 ",F, 50V, ±20% OEN61HM-474Z
C1612 Electrolytic, 10 ",F, 160V, +30%, -10% OET52CR-106
C1613 Electroyltic, 10 ",F, 160V, +30%, -10% OET52CR-106
COILS
L1201 Peaking 820 ",H A04725-820Z
L1203 Peaking 270 JlH A04725-270Z
L 1351 Peaking 22 ",H A04725-22Z
L1352 Peaking 22 ",H A04725-22Z
L1353 Peaking 22 JlH A04725-22Z L1502 Linearity A39835
L1503 Width CJ39503-00A
L1504 Heater CJ30030-11
TRANSFORMER
T1201 Trap 3.58 A75537-C
T1301 BP 3.58 CE40191-00A
T1501 Horizontal Drive A46022-8M
T1503 Side Pin C39084-A
T1602 SOT ETA24Z5AY
OTHER
DL1201 Delay Line CE40472-001
S1201 Lever SW (Service) CEX40078-001
Y1301 Crystal A75746
FR1401 FR68 ohm, 2W, ± 5% * 2RH021 J-680M
FR1601 FR100, 1/2W, ±5% * ORH127J-101M
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
26
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
POWER PCB ASSEMBLY #GE-9000A
LOCATION DESCRIPTION JVC PART #
TRANSISTORS
X9101 X9102
DIODES
09101 09102
09103
09104
0910S
RESISTORS
R9103
R9104
R910S R9108
R9110
Silicon Silicon Silicon
Silicon
Zener
Metal Film, 4.7, 3W, ±S% Oxide Metal Film, 10K, 2W, ± 5%
Oxide Metal Fim, 18K, 1W, ± 5% Metal Film, 47K, 1/2W, ± 1 %
Metal Film, 3.01 K, 1/4 W, ± 1 %
2SC1890A (E, F) 2SC2688 (K, L, M)
1S1887A 1S1887A
1S1887A
1S1887A
R06.8EV3-Y
ORX039J-4RZ
ORG029J-103A
ORG019J-183S ORV121 F-4702
ORV141 F-3011 Y
VARIABLE RESISTORS
R9109
CAPACITORS
C9104 C910S
C9107 C9108
OTHER
F9101 FR9101 R9101
(81 AOJ), 2K 8
Electrolytic, 330 p,F, 200V, +30%, -10% Electrolytic, 10 p,F, 2S0V, +50%, -10%
Electrolytic, 330 "F, 200V, +30%, -10% Electrolytic, 1 p,F, 160V, + 30%, -10%
Fuse, 1.2SA FR 220 ohm, 1/2W, ± S% Positor
OVZ3234-023
OES720R-337M OEZ0077 -106M
OES720R-337M QETS2CR-1 05
* OMF51U1-1R25S * ORH127J-221M
* A75511
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
27
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
CRT SOCKET PCB ASSEMBLY #GE-3000A
LOCATION DESCRIPTION
TRANSISTOR
X3101 X3102
X3103
RESISTORS
R3112
R3113
R3114 R3115
R3116 R3117
Silicon
Silicon
Silicon
Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Oxide Metal Film, 12K, 2W, ±5% Composition, 3.3K, 1/2W, ±10% Composition, 4.7K, 1/2W, ±10% Composition, 3.3K, 1/2W, ±10%
VARIABLE RESISTORS
R3102
R3104 R3106 R3109 R3111
CAPACITORS
C3101
C3102
COILS
L3101 L3102
L3103 L3104
OTHER
B Cut Off, 5KO, B
R Cut Off, 5KO, B
G Cut Off, 5KO, B R Drive, 2200, B G Drive, 2200, B
Electrolytic, 10 p,F, 250V, + 50%, -10%
Ceramic, 1000 pF, 3000V, + 100%, -0%
Peaking, 180 p,H Peaking, 390 p,H Peaking, 390 p,H Peaking, 390 p,H
CRT Socket
JVC PART #
2SC2611
2SC2611
2SC2611
ORG029J-123
QRG029J-1 23 QRG029J-123 QRZ0039-332
ORZ0039-472 ORZ0039-332
QVZ3234-053
OVZ3234-053
OVZ3234-053 OVZ3234-022 OVZ3234-022
OEZ0077 -106M
OCZ9017-102M
OOL043K-181 A04725-390
A04725-390 A04725-390
* A75522
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
28
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314-xxx-xx) will be available from Commodore at this time.
CONTROL PCB ASSEMBLY #GE-4000A
LOCATION DESCRIPTION JVC PART #
VARIABLE RESISTORS
R4003 Tint, 10K CEX40206-B14
R4004 Color, 10K CEX40206-B 14
R4006 Cont, 10K CEX40206-B 14 R4012 Bright, 10K CEX40206-B 14
R4015 V Hold, 10K CEX40205-A 14
R4016 H Position, 500 CEX40205-B52 R4022 Sub Bright, 4.7K OVZ3507-472
R4024 Volume, 200K CEX40205-A25
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
FUSE PCB ASSEMBLY #GE-9700A
LOCATION DESCRIPTION JVC PART #
CAPACITORS
C9701
C9702
OTHER
F9701
Metalized Mylar, .047 p,F, AC125V, ±20%
Metalized Mylar, .047 p,F, AC125V, ±20%
Fuse 4A Line Filter
OFZ9008-473M
OFZ9008-473M
* OMF61 U1-4ROS A39475-J
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
COM PART #
29
1701 Board Layout
r ;U0.60 R-<:3 1~ E T201 I DL201 I ~ !: 1 ~ I o~ O.O,,? ~ ~OoJ B ) L ~ '" NO R204 On -----.r,.,";5. • .r-------c
'W 3 C :e=:::>- 0 ; ,c'250 _ c,s> 0 ~1 ° ~~~~O ~~~ono.~o~ ~1 .:;:; 1~;; O~ C-~o::,. ~ :,~~ ~ -s.. !,l, 00 -c::::::r - '~202 -e:r ""'0 n -. -c::::::r. ~~oo ... 9
W44
oft ~. ~ V XS01 (])C509 <::> R526 --1 t-W43
R510 ~R506
TS01
)C515 ~523
( ORN ORN
54 53 52
~J CS21 ~ ( ( L502 L
0 ( ;u <!! ~
: <> .350 .2"~ ~o ~~ -c=:r o U'i0Q "'. "'--F ~ • " '" ~. >< -c=:r..,'~ OOn • ~:u ..... N . ~ 0 ."'7. fA ;;
j2 1'1 ° -c=:r 0 '" \...? ~ ~ QI .. o h 1'1 ~ <:> (]) '/1103 C2020 I!! '5 N~ 000' '" ~ 30 IU -dts,'l,. wo. _ .c::t.31. ~ g Ow b n woo m -c::::::r .317 '"
) r o • - ::..c::::r ~ -c::::::r • W I I_ • ~! CO" c::::>- U .205 3 ~ W.07 w" Qri ~050Rl0~7~,0. C).o,O ~ ~ OOO~ ~ U::~~O· .. TP12A ~~ ~,O !1'1 g
• ~. ,0·"0' .". ~ • ;; q614R6,~ gu~ ~.357 ~ 0 ~
W,2 W54
X402 R420 --1
W92
Wl3 C
B ~.::
(jt°C.09 )~' ORIOO' ·~I IT30'wo. q~301 R:03 0 ~ 8 O£ ::0 - I I - TP51. WI. ;l 0.0. ~. ~ ;; '" 2 - COlOR • 2 c=lc.., <::>)( [] QI - ~R3"'- 0 J"-"L .302 ~ 0 W40 C611 C LJO '--1" ~ _ ~.r---'. W'5.",
go E • C302 • .30. 307 '---.r = COOS,--, ~ • 0 c=) .0. '----' 2! '" R323 0 -c::::::::r R322 W 52 0 0'
o n -c::::::r • -c::::::r .305 w.3 ~ C;f:)'04.SO
g ~N • n n ~ 1., :
CD -<i=r 000' a 0 -c::::::r o~ ~-c=:::>- • ...r--\..
X401
W33 W93
19
14 T01
E~X8602 ii 0 n~ ~. [OiUB TINT. 0 L-> 'e' , 0 On .505.703 _ " nD -C::::J ; -0 ~. .30' ~ ~ _ T~ >----r •
g. -c::::::r :::: :; ~ o~ g 0". .",.~, ~O ~ ~ Co) ~611 < ~-or~o ~@L9 • A· Z\ JCSO' ;; W:Aol :; '. ~ 2 • t)'(a WI.- &0303U . 0 C4~O~ '~I~ ~ W2' ~ ."f-
.WHT 0· ~ ~gO ",,:''' w" ~o °OCD 0; d 0202 COj Q' ~. C2m ~O:Q~7 ~ t i~;--l-ja:)44=~~(ff~_ en C613......... 0 0 °0 -)( ~ 0402 u",Q06 I ~ () QS W30
." • • - "'. 't--" • '" '~421 W~3ill ~___ I
BlK .- ~3081 r ---- -0 9 "
"'" ~ - 0404 W" ,." • 0 :tEtf412 -0 • <: c'" ~ ,,0' WI' •• ~ -c::::::r. . _ T602 i5 c.,,o O;u0:uO~o3°·1 .}::l t;':ob'oOO~ (C2S02~ ___ } _, ~R410 0503
9 0307~ ~ :: ;S ...... ~ 3 R403 ~ -W 0 R42B i i P .c::::p. 0 • 050. , 3
0306 0 ,...~ -I I • • , T O "---1 i g •• " 0 g H.FREQ V.POSITION w.o
1
S 4
03 02 01
LS03
L
~q 1_- re', - 0 .. "" - V.L1N. V.HEIGHT GE-1000A
..., 51
I )C512 ) C513 ) )CS14 )C531 C530
~ ao
10
8
6
I
.J o
1701 Schematic Notes
VOLTAGE & WAVEFORM NOTATIONS - Voltage readings and waveform measurements were taken with a color video signal injected at the video input terminal. Figures in ( ) represent voltage readings taken while receiving a black and white sign. Each variable resistor was set to condition at time of shipment. After adjustments have been made, the figures will vary and the figures should be used for reference only.
VOLTAGE READINGS Multimeter set at 20KO/volt DC. All values given are DC voltages.
REFERENCE WAVEFORMS - Scope sweep speed set at: Hor - 20 /tS/div Vert - 5V/div; Unless other speed is specified.
SCHEMATIC NOTES - Unless specified otherwise:
Resistors: Capacitors:
Inductors:
All values are in ohms, 1/4 watt carbon Values of 1 or higher are pF. Values less than 1 are /tF, 50V, ceramic Electrolytic values are in /tF, NP indicates non-polar (bipolar) Values are in uH
<;;> indicates a test point connection ;m indicates chassis ground Hz indicates cycles per second
SAFETY - For safety, maximum reliability, and continued good performance, use specified replacement parts. All safety items have been identified with the symbol *. FR is an abbreviation for FUSIBLE RESISTOR~. FR's act like fuses and are used as safety items. They are to be replaced with specified parts.
NOTICE - This circuit diagram and the circuit constants are subject to change for improvement without notice.
A/V f'ANEL (REAR TERMINAL)
~t8~IIA(B,C) orZSCZSIOV or ZSC2482 orZSCZ687 AUOIO DRIVE
X602 2SD ••• A((;) .r2SC2411~ AUDIO OUT r ~~~;:. '~;- 1 GE-IOOOA MAIN 'CB ASSY
II~HY ,., r ...... • I rt- ---lfl
~:~---~- J J 'II Y4 _ •• _.
AUDIO
'" vloro
IN
~L.
(FRONT TERMINAL)
X02 2SC1I06A or 2SCI4S4 POWER REGULATOR
9 TP'"
m ~I I GE-9000A j POWER PCB ASS'Y
IIw I1rv
0101_0104
" 1" 1t10' o
Iw ,.,
•• !lOV
ItIOI "TH 'I'"n. '801 ~~Olr. n fillO& It r-----, 1.2~ FR I I 11K IW
II I IOMR
I I
'lr" ':. ___ ~ :: CIGI OI~~1: I Ul ~ LOI I _ t _ .. ,;~~,: ./"CI~~ .07\.. ~ ~ ~H""'!V'I--~"O' I :~~ L-IITiJI-_ .... 4!i!!~!.lI:-·!!:C4..:~::.:.·_·¥6~1 +: ~"O' fClO~~O: ~~, i&J
J ,. IGII: FIOII'O UK ItttO ttO" IW T 0105 r-XI02 101M!'·""
110/100 OMR RO .. "oA 2SC2688 eM".
n'l.~ 200 ~I U<,L,M) I ____ ~MP I
~- 0'- Il~r r rol rt;iiiiii1i GE-9700A U U -=: ... : ~.'WOI FUSE PCB ASS'Y IHI
L --~~ ..... T ::~.,.O~~I".. I IFV\::,.".:= •. ::.=(V I I '01
.!. ~ I~'I ~·"---~THI~ .. g~~,uv· IV\I ""'-l-F ~~;~ ~ "0' .OHZ 100HZ
Itao * ceo ".1tc .,001 "0' IIOK ceo.
.011 ,OOY MY
SPOI
IC30I@pIn
o :$Yp..p
'HI
r9"~ ': : W ~: : olllii 1 1 L _______ J 0'1'01 DEFLECTION ,(OI<E
frtIIII 'I·IOQOA
1701 Schematic
I J
31
1702 MODEL IDENTIFICATION
BEFORE servicing a 1702 Monitor, please NOTE:
Some models are distinguished with the letter "T" next to the manufacturer's serial number.
_-----+------ Rating label
Serial No. I -------------(T) I
L-- Model discrimination point.
This designation indicates that a TOSHIBA picture tube and deflection yoke were used. A difference in electrical specifications is required. The connect schematic and parts list is identified 1702 "T".
32
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314-xxx-xx) will be available from Commodore at this time.
1702 CHASSIS PARTS
LOCATION DESCRIPTION JVC PART # COM PART #
DY01 Deflection Yoke * CJ26161-00A
J1821 US Pin Jack Vid In C39207-004
J1822 US Pin Jack Aud In C39207-003
L01 Degausing Coil * A39477-T
01522 Silicon Transistor * 2SD1426 R01 Un"flammable Resistor, 280fl, 20W, ±10% * ORF208K-281
S01 Power Switch * CEX40097-002
SP01 Speaker 80, 2W EAS-10P225S
T01 HV Module * CJ26156-ooB
V01 Picture Tube * 370FVB22(E) PC Magnet CE40305-ooB Neon Lamp OLZ9015-oo1
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
1702 CABINET PARTS
LOCATION DESCRIPTION JVC PART # COM PART #
1701/1702 Front Cabinet C 314900-01 1701/1702 Front Cntrl Panel C 314901-01 1701/1702 Power Door Button C 314902-01 1702 Front Name Plate C 314903-02 1701/1702 RT Side Handle C 314904-01 1701/1702 L T Side Handle C 314905-01 1701/1702 Rear Cabinet C 314906-01 1701/1702 Rear AN Terminal Assembly C 314907-01 1701/1702 Top Cabinet Panel C 314908-01 1701/1702 Replacement AC Cord * QMP1460-244K C 314909-01
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
33
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314xxx-xx) for will available from Commodore at this time.
MAIN PCB ASSEMBLY #GE-1003A
LOCATION DESCRIPTION JVC PART #
INTEGRATED CIRCUITS
IC1201
IC1301 IC1421 IC1501 IC1601
TRANSISTORS
01101
01201 01251
01301
01341 01342
01501 01521 01522
DIODES
01201 01202
01204 01301
01302
01401 01421 01422 01501 01502 01503 01522
01523 01524 01525
01541
01551
Zener
Zener
Zener
HA11401
HA11247
AN5515 HA11244
AN5265
2SC1959 (Y)
2SA 1015 (Y, GR) 2SC1815 (Y, GR)
2SC1815 (Y, GR)
2SC1815 (Y, GR) 2SC1815 (Y, GR)
2SA1015 (Y, GR)
2SC1627A * 2S01426
1SS133 W06B
1SS133 1S1555
1SS133 MA4110 (M) 1SR124-400 1SR124-400 MA4110 (M) 1SS81 1SS133 1SR124-400
RM-2C U19E MA4220 (M)
1SR124-400 1SR124-400
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
34
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com
modore part numbers (C314-xxx-xx) will be available from Commodore at this time.
MAIN PCB ASSEMBLY #GE-1003A (Continued)
LOCATION DESCRIPTION
DIODES (Continued)
D1701
D1702
RESISTORS
R1414
R1421
R1511
R1523
R1526
R1530
R1531
R1532
R1534
R1551
R1607
R1701
R1702 R1705
Zener
Oxide Metal Film, 1000, 1W, ±5%
Metal Film, 1.50, 2W, ± 5%
Oxide Metal Film, 560, 1W, ±5%
Oxide Metal Film, 1 K, 1 W, ± 5%
Carbon, 1 K, 1/2W, ± 5% Oxide Metal Film, 12, 1 W, ± 5%
Metal Film, 47, 2W, ± 5%
Carbon, 1 K, 1/2W, ± 5%
Oxide Metal Film, 4700, 1W, ±5%
Metal Film, 2.7, 1W, ±5%
Metal Film, 5.6, 1W, ± 5%
Metal Film, 33, 1W, ±5%
Metal Film, 20K, 1/4W, ± 1 %
Metal Film, 14K, 1/4W, ± 1 %
VARIABLE RESISTORS
R1209
R1303
R1305
R1406 R1408 R1429
R1504
CAPACITORS
C1202
C1204
C1308
C1342
C1402 C1404
C1406
C1423
Sub Cont., 1 K
Sub Color, 50K
Sub Tint, 20K
V. Linearity, 200 V. Height, 200 V. Position, 500
H. Frequency, 5K
Tantalium, .47 J.'F, 35V
BiPolar Electrolytic, 3.3 J.'F, 50V
Trimmer
BiPolar Electrolytic, 10 J.'F, 16V
Tantalium, 2.2 J.'F, 16V Mylar, .1 J.'F, 50V
Mylar, .056 J.'F, 50V
Electrolytic, 100 J.'F, 35V
JVC PART #
1 SR124-400
* HZ7B2L
QRG019J-1 01 S
* QRX029J-1 R5A
QRGO 1 9J-560S
QRGO 19J-1 02
* QRD121J-102SY
QRG019J-120S
QRX029J-4R7 A
* QRD121J-102SY
QRG019J-471 S
* QRX019J-2R7S
QRX019J-5R6S
* QRX019J-330S * QRV141 F-2002Y
* QRV 14 1 F-1402Y
QVZ3230-013
QVZ3230-054
QVZ3230-024
QVZ3234-022 QVZ3234-022 QVZ3211-052
CEX40202-053
QEE61 VM-4 7 4BZ
QEN61 HM-335Z
CEX40212-001
QEN61 CM-1 06Z
QEE61 CK-225BZ QFZ0083-1 04M
QFZ0083-563M
* QET51VR-107
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #14
35
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Com
modore part numbers (C314-xxx-xx) will be available from Commodore at this time.
MAIN PCB ASSEMBLY #GE-1003A (Continued)
LOCATION DESCRIPTION
C1425 Electrolytic, 470 p,F, 35V C1426 TF, .15 p,F, 50V C1502 Electrolytic, 220 p,F, 35V, +30%, -10% C1508 Polypropylene, 5600 pF, 100V
C1523 Electrolytic, 33 p,F, 160V
C1526 Metalized Polypropylene, 5000 pF, 1600V
C1529 Metalized Polypropylene, .53 p,F, 200V
C1530 Electrolytic, 2.2 p,F, 50V C1531 Electrolytic, 470 p,F, 25V, + 30%, -10%
C1534 Metalized Polypropylene, 1500 pF, 1600V,
C1535 Mylar, .082 p,F, 100V, ± 10%
C1541 Electrolytic, 1 p,F, 160V, + 30%, - 10% C1551 Electrolytic, 1000 p,F, 16V, +30%, -10%
COILS
L1201 Peaking Coil, 820 p,H L1203 Peaking Coil, 270 p,H
L1301 Peaking Coil, 22 p,H
L1302 Peaking Coil, 22 p,H
L1303 Peaking Coil, 22 p,H
L1521 Lin. Coil L1522 W. Coil L1523 HVT Choke
L1524 Heater Choke
TRANSFORMERS
T1201 T1301
T1521
Trap, 3.58 MHz BP, 3.58 MHz
SW Drive
MISCELLANEOUS
DL1201 S1201
X1301
Delay Line
Service Switch (Lever)
Crystal
±3%
JVC PART #
* OET51 VR-477 OFV81 HJ-1 54M
* OET51 VR-227 OFP32AJ-562M
* OET52CR-336
* OFZ0081-5001S
OFZOO67-534S
OEN61 HM-225Z * OET51 ER-477
* OFZ0081-1 501 S * OFM72AK-823M
OET62CR-105Z * OET51CR-108
A 76186-820Z A76186-270Z
A76186-22Z
A76186-22Z
A76186-22Z
* CE40052-001 * CE40140-00F
CE40037-560
CJ30030-100
A75537-0 CE40476
* CE40361-00B
CE40535-001
CEX40078-001
A76351-D
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
36
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part numbers (C314xxx-xx) will be available from Commodore at this time.
CONTROL PCB ASSEMBLY #GE-1003A (4/6'
LOCATION DESCRIPTION
VARIABLE RESISTORS
R1854 Cont, 10K R1860 Bright, 10K R1863 Sub Bright, 4.7K
R1866 Tint, 10K R1869 Color, 10K
R1871 Volume, 10K R1875 V. Hold, 10K R1877 H. Position, 1 K
MISCELLANEOUS
L1851
SW1821
J1821
J1822
Peaking Coil, 820 pH Slide Switch (Signal Select)
US Pin Jack (Video In)
US Pin Jack (Audio In)
JVC PART #
CEX40206-B 14 CEX40206-B 14 aVZ3507-472
CEX40206-B14 CEX40206-B 14
CEX40205-B 14 CEX40205-A 14 CEX40205-B13
A 76186-820Z
CEX40325-001
C39207-004
C39207-003
COM PART #
37
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314xxx-xx) will be available from Commodore at this time.
CRT SOCKET PCB ASSEMBLY #GE-1003A (3/6)
LOCATION DESCRIPTION
TRANSISTORS
01351
01352
01353
DIODES
01351
RESISTORS
R1357-
R1359 R1360-
R1362
R1378
Silicon
Oxide Metal Film, 12K
Composition, 3.3K
ZN
VARIABLE RESISTORS
R1352
R1354
R1356 R1369 R1371
CAPACITORS
C1351 C1352 C1356
B Cut Off, 5K
R Cut Off, 5K
G Cut Off, 5K R Drive, 200
G Drive, 200
Electrolytic, 4.7 ",F, 250V Ceramic, 1000 pF, 3K V Electrolytic, 4.7 ",F, 250V
MISCELLANEOUS
L 1351 Peaking Coil, 180 ",H CRT Socket
JVC PART #
2SC2611
2SC2611
2SC2611
RM-2C
ORG029J-123
ORZ0039-332
ERZ-C05ZK271
CEX40302-053
CEX40202-053 CEX40202-053 CEX40202-022 CEX40202-022
* OET52ER-475 OCZ9017-102M OET52ER-475
00L043K -1 81
* CE40085-00A
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
38
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314xxx-xx) will be available from Commodore at this time.
REGULATOR PCB ASSEMBLY #GE-1003A (2/6)
LOCATION DESCRIPTION
INTEGRATED CIRCUITS
IC1901
DIODES
01504
01901-
01904
RESISTORS
R1902
R1907
R1910
CAPACITORS
C1901-
C1903
C1904
C1906
C1907 C1908
C1910-
C1911
Bridge Rectifier
Si
Non-flammable, 2, 7W
Metal Film, 4.7, 2W
Composition, 6.8M, 1/2W
Ceramic, 4700 pF
Electrolytic, 470 JlF, 200V,
Metal Film, .1 JlF
Electrolytic, 10 JlF, 160V, Metal Film, .1 JlF
Ceramic, .1 JlF
MISCELLANEOUS
L1901 T1901
F1901
F1902
TH1901
Coil - Line Filter
Power Transformer
Fuse, 4A
Fuse, 1A
Thermistor
±20%
+30%, -10%
JVC PART #
* STR3125
* 1 B4B42
* 1S1887A
* QRF076K-2RO
* QRX029J-4R7 A
QRZ0039-685
* QCZ9021-472U
* QEU720M-477M
* QFZ9020-1 04M
QET52CR-106 QFZ9020-104M
QCZ9020-472M
* CE40247 -OOA * CE40489-00A
* QMF66U 1-4ROS
* QMF66U 1-1 ROS
* CEX40137-001
*SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
39
1 702 Board Layout
wO D llioR356 oR354 oR3S7 Ilil ~ GE-I003A 15/61 Ai INPUT ~ ~I"'""'I I ... 1"""1 UN .. '0 1 m;.1 '.d~1098H !i1eum!@
i :~~~~9~O~; _ ~ 6 L ;i P~jJYIRI ! ! i~ O~ ~~. ~ '0 n
~n'" ~~70 ~ E [136}l .... 0 ill AOOIOO "'0 .I~ ~ ~tr @lJ u y; 0 a 06 0 0 0
a~'" ... '" B ~n: ~ - El rl-. 0 .dLoo:ooo~:00000~£~~-:90oo~oooooo~00000 @ ~ ~ ~ II!! - E U... C356 0 U ~: ... ~ gUn ~ 0"'" : {; ~ oo-fl"' ~ "' ~DO
Y ~OO U ~~6 " a ~ 0 ~ r O~ .. ~ 1l.201!J R204 ;; -a R203 0 °OR205 RS06 R511_ C504 a R9k1 .... L....-__ ___L_....l
163 ~ I : O~ - ~ 9001 -II'? .~""g .. l~ 0503 ~70 • C503 ~20 -{] 0- ~ ~C534
~ ..... i.ill-.I"·I: ,.. : ""DO§09a gOO~~ :;:!'lfd;.,~::. ~i 1:'0 oo~0523 ;: ~ I [!] 3 I I'8l 4 ~ O~O 0 a R202 09 .....!!I9l.. C401 IT"'. !HIRO! ~ &I C526 ~ _ l!...J 0 _12_3 _ ~ ~ ~2 -c:::::..J- C> _ TP-llA I'" t:: ~ 136
~~ I I ~~~R209 C34100 "'~U Oa I ~ ~ ~o ! -- I C351 - ~ =~ R227 a~~~ ?61oo'Oiili ~ (j703 ~ 2 ~
o 0 0 0 0 0 0 0 0 0 =, ==. 0 0 0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 .m a" Ill"" :}i , m151~ 0 ~ ~ .. "'@&Irll't-iii Rfi? -B43,;;;-\: . y~ a R404 III ~ I R906 ~g .--C904___ ~ ~OCkl3 51 ~lllT3°D""· Oi!lO~.TH ~~ ~ ~ i ! -c:::::r 0 E B ~ 1<1 TNI 2 -c:::::r .
o ~ C 0111 .~ R401 n ~ 11 l522
;;;1 21 ~ ~ :~63 a ctlOS ~CJCZ R3)~3'" "w Oioit ~o O~ o~ -c: 8 ~ @()c .. Ii ~ 0 0 -U( 23 5:! -- (301 6(0301 --- ~
(1)2 05 C> E. R424a to R4I 0541 m3 Oi!l i"i R322 R a ~
O --r-----==__. 0 ::: C303 9 00 a R31i 425a C401 E 51 a UI R423 RS4~
O RED O-t)() 02", ; B ~ @2A3117o I a C4~;: ~ ~ C54U
! 0 ::: ~ R313 i!l 51! tjU 128 D ~ a CO 0 (422 -- EI
~ -m; "" I 40 Q ij g C> C421 ~ -
o 0 ~ ro ~I J C314 WI3 0 () R413 C>
a. : :J;'-~O. ~-- CJliD ~ZI ( ~ 0 0 Rklla"R3UE B L....J 0 110 P ~
o U45 0342 00 Oi!l OR3~311 ~Oo EJ 0 -<::hd- . R41l ~
[f:~Y~EJO"'laV. ml"" e a IITl'" I!5_Wll_· - R405~C5. ~(j~RS36b ~:~~~ o -la 0 0 MIl C>. _ WI2 ~ R409 ~ 91?Z5 oce 0 0 _ -- I 5 WI! -wi! o ~~ () 0 --~ R4M -- n ~
~ 8~ ~ ~ II !4!Il ~ I D ~8 -{] 0- R426 -c:::::r '.!X 1)1
Sf! ~ _ a R601 I S SW201 • 104 E H 0201 R427 ~ R4j R505 21 ~ ::c!:: >- R60Z ~ § a -- <t:> 0201 .
OJ L.. __ --.JI I r-1_rF9.!!!.Ol..l4:.l!!_OA~I2!i.oi5~V...-_ ii i a ~ Rl04 :~ O~ <t:> 0302 !V.POSITIOII! R428 R421n=-..::......lo
T901 _ 1 1 I >- _ ~ 0 rsuBlnNT ~ ~ -I!I~:; R608 a [!] OORS:S19 gW26 1-c:::::J-,~ ,u-I-,.-u,
U") 0 lJJ!!J~ ~ I h (~ - ~ El _~ 3 ~ C> R406
(] ~ ~ 0 o~ ~ 0 §C}.J ~ ~ ~I:a ~ a R537 ! I.HIQlT' HOT ~ tB 00 - 0 Rl03 R606 a 1:533 C> R;m-
''''ng 0:: 0 ~ ~ ~ SUB COLOR 0-.. !.1 -iU 0 Of-I 0 0 0 L-J e R607- R5lO -L.LJ C605 GE -1003A (1/6) 10 OL <.!:> MAIN PB c-=,AS""=Sy~======J===================,,,"===~=_==dJ
C906
I~
TH901
I~ _13_1_
~ GRl.t.:lJ Ot()
C905 •
1 702 Schematic Notes
VOLTAGE & WAVEFORM NOTATIONS - Voltage readings and waveform measurements were taken with a color video signal injected at the video input terminal. Each variable resistor was set to condition at time of shipment, After adjustments have been made, the figures will vary and the figures should be used for reference only.
VOLTAGE READINGS - Multimeter set at 20KO/volt DC. All values given are DC voltages.
REFERENCE WAVEFORMS - Scope sweep speed set at: Hor - 20 /LS/div Vert - 5V/div; Unless other speed is specified.
SCHEMATIC NOTES - Unless specified otherwise:
Resistors: Capacitors:
Inductors:
All values are in ohms, 1/6 watt carbon. Values of 1 or higher are pF. Values less than 1 are /LF, 50V, ceramic. Electrolytic values are in /LF, NP indicates non-polar (bipolar). Values are in uH.
<;;:> indicates a test point connection ~ indicates chassis ground Hz indicates cycles per second
SAFETY - For safety, maximum reliability, and continued good performance, use specified replacement parts. All safety items have been identified with the symbol *. FR is an abbreviation for FUSIBLE RESISTOR~. FR's act like fuses and are used as safety items. They are to be replaced with specified parts.
NOTICE -This circuit diagram and the circuit constants are subject to change for improvement without notice.
ftS=E~'ER
[1 r------------ -----------------------------------------------------,1
;.; R32! 390 A ReSI :oJ. -: TP~51 LI I ~.8K 5.61"> GE-1003A(5/6)
AV INPUT PB ASS' Y (REAR)
LUMA AUDIO CHRO~A
1~~-d~-C9J'p---,
I IC601 AN5265 AUDIO
ATT I J --J OUTPth f1 ~DC VOL 'I .fAiiDIol
._, --"'1: ~ R880 1 +.C~~~1I6 ..+- li·=-~cc=c=it_r~+::_:~-+-t't;;;_t_--+- r ::: L Re6B R4B7506 R8S? RB59 R81.- 9"'71,6~ ~~~l)--~(AOOIT10HAlJ *;..C"01 ii303 R323 I .. O.2V\l-1l + 005 R32B RlO' RI"~O kI,''',,' -t--t······---t----.--<0JL5 l~ "'" 2.2K R8j~ 470 4.7K ~~B'\?l ' '
nOI 0-47 IOOf 12K 1ff: t ~ .471 1M 1/4 ~~ I * R864 ~~~... 1/4 56K I. I(
A32,,-f~~~~ I~_::I 16 ~. '"' ~:ClO4 'HIS ...':~" ~ m' Rilb '; -1t \K ~ ~~~~ '~ i--~0_',''18°-t-, .<V.~OlD) JI
fie - --U-- -j
I MUTE I ~ J ~3}o_('}o_(S )-\.6)-\.7}o_(8}o_(9 ~
R608
" RS07
!).4V 3'1 5£,V '5.6v I" '5.7'V 12,5v t---~~ __ 4r+~~I~'8~V~_ ~ ~---i~~----~----~
R60t C601
5.& IW OMR
4.71< 1150
~r C602 220/16
R&D;'
39 ""
CS03 10/50
+
+
R604 10K
C604 10150
R6M 4.7
+ C610 1000/16
12VP- P
IK ; T [1L:f+1 ~60 ~I ~.------;180 R303 ~ ~ ~ R867 IOK6 0 RBol ~863 L. ~o\7~ : ~6V 4.511 !).5V 12\1 lOA\I 5!lvl 3~6vi SDK R305 I I B.21< I.SK "RSS2 3 ~
: C30[ --r ~o,....(l1::-<Ji)oo-(J3 14 l~ 20K R316 :: --= ~~8?1<0 \:~~ ~S1.l8508 ~_ 4.7K 2 7K ~!. , _ .001 ;;1.' BP • r ~.:r' ISuBlISliBl j~O" 2." I I 114 "m 1
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1 702 Schematic 41
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1702T UNIQUE PARTS
Monitor parts may be secured locally. JVC part numbers have been provided for your convenience. ONLY Commodore part number (C314xxx-xx) will be available from Commodore at this time.
1702T
LOCATION DESCRIPTION JVC PART #
CHASSIS PARTS
V01
DY01
LOCATION
DIODES
D1402 D1521
RESISTORS
R1421
R1533
Picture Tube
Def. Yoke
" 370NVB22-AB
" CE20037-00A
"SAFETY COMPONENTS - Use EXACT replacement ONLY.
MAIN PCB ASSEMBLY #GE-1005A
DESCRIPTION
Metal Film, 6.S, 2W, ± 5%
Ceramic, 120K, 1/2W, ± 5%
JVC PART #
RD6.SE (B)
" RH-1S
* ORX029J-6RSA
* ORD121J-124SY
VARIABLE RESISTORS
R1305 Sub Tint, 5K OVZ3230-053
CAPACITORS
C1526 Metalized, Polypropylene, 6300 pF, 1600V, +3% " OFZOOS1-630 1 S
"SAFETY COMPONENTS - Use EXACT replacement ONLY.
REG. PCB ASSEMBLY #GE-1005A
LOCATION DESCRIPTION JVC PART #
RESISTORS
R1904 Ceramic, 10K, 1/2W, ±5% * ORD1295-1 03S
"SAFETY COMPONENTS - Use EXACT replacement ONLY.
COM PART #
COM PART #
COM PART #
IC601 AN5265 AUDIO
SPEAKER .0
(. TP-51
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