CX-JT7 JAX-PK7.pdfCX-JT7 Ver 1.0 2003.04 9-877-252-01 Sony Corporation 2003D0500-1 Home Audio...
Transcript of CX-JT7 JAX-PK7.pdfCX-JT7 Ver 1.0 2003.04 9-877-252-01 Sony Corporation 2003D0500-1 Home Audio...
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SERVICE MANUAL
COMPACT DISC DECK RECEIVER
AEP ModelUK Model
E Model
CX-JT7Ver 1.0 2003.04
9-877-252-01 Sony Corporation2003D0500-1 Home Audio Company
C 2003.04 Published by Sony Engineering Corporation
SPECIFICATIONS
CX-JT7 is the tuner, amplifier, cassettedeck and CD player section in JAX-T7and JAX-PK7.
Model Name Using Similar Mechanism NEW
CDCD Mechanism Type CDM74F-K6BD71A
SectionBase Unit Name BU-K6BD71A
Optical Block Name KSM-213DCP
Optical Pick-up Name KSS-213D
Tape deckModel Name Using Similar Mechanism NEW
Section Tape Transport Mechanism TypeCWM43FR16CWM43RR23
TUNERFM tuning range 87.5 MHz to 108 MHzFM usable sensitivity (IHF) 16.8 dBfFM antenna terminal 75 ohms (unbalanced)AM tuning range 531 kHz to 1602 kHzAM usable sensitivity 350 µV/mAM antenna Loop antenna
AMPLIFIERPower output Rated: 80 W + 80 W (6 ohms, T.H.D.
1 %, 1 kHz/DIN 45500)Reference: 100 W + 100 W (6 ohms,T.H.D. 10 %, 1 kHz/DIN 45324)MUSIC POWER: 225 W + 225 W
Total harmonic distortion 0.08 % (50 W, 1 kHz, 6 ohms, DINAUDIO)
Input MD (VIDEO): 1.5 VOutputs SPEAKERS: 6 ohms or more
PHONES: 32 ohms or more
CASSETTE DECKTrack format 4 tracks, 2 channels stereoFrequency response 50 Hz – 8 kHzRecording system AC biasHeads Deck A: playback x 1
Deck B: recording/playback x 1,erase x 1
CD PLAYERLaser Semiconductor laser
(λ = 780 nm)Emission duration:continuous
D/A converter 1 bit dualSignal-to-noise ratio 85 dB (1 kHz, 0 dB)Harmonic distortion 0.05 % (1 kHz, 0 dB)
GENERALPower requirements 230 V AC, 50/60 HzPower consumption 130 WPower consumption With ECO mode on: 0.25 W in standby mode With ECO mode off: 20 WDimensions (W x H x D) 280 x 328 x 437 mm (AEP, UK, CIS)
280 x 328 x 446 mm (MX, E51)Weight 8.4 kg (AEP, UK, CIS)
9.3 kg (MX, E51)
Specifications and external appearance are subject to changewithout notice.
COPYRIGHTCheck copyright laws relevant to recordings from discs, tuneror tape for the country where the unit is to be used.
Licensed by BBE Sound, Inc. under USP4638258, 5510752and 5736897.
• AbbreviationE51 : Chilean and Peruvian modelsMX : Mexican model
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CLASS 1 LASER PRODUCT
LUOKAN 1 LASER LAITE
KLASS 1 LASER APPARAT
This appliance is classifiedas a CLASS 1 LASERproduct.
This label is located on therear exterior.
Notes on chip component replacement• Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing• Keep the temperature of the soldering iron around 270 ˚C dur-
ing repairing.• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.
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TABLE OF CONTENTS
1. SERVICING NOTES ................................................ 4
2. GENERALLocation of Controls ....................................................... 7
3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 93-2. Case (SIDE-L/R) ............................................................. 103-3. Case (Top) ....................................................................... 103-4. Tray Panel ........................................................................ 113-5. CD Mechanism Deck (CDM74F-K6BD71A) ................ 113-6. Front Panel Section ......................................................... 123-7. Mechanical Deck ............................................................. 123-8. Rear Cabinet Section ...................................................... 133-9. MAIN Board ................................................................... 133-10. POWER Board ................................................................ 143-11. TRANSFORMER Board ................................................ 143-12. Table Assy ....................................................................... 153-13. Motor (TB) Board ........................................................... 153-14. Motor (LD) Board ........................................................... 163-15. Base Unit (BU-K6BD71A) ............................................. 163-16. Motor Gear Assy (Sled) (M701), BD Board .................. 173-17. Optical Pick-up (KSS-213D) .......................................... 17
4. TEST MODE .............................................................. 18
5. ELECTRICAL ADJUSTMENTSCD Section ...................................................................... 21
6. DIAGRAMS6-1. Block Diagram – CD Section – ..................................... 226-2. Block Diagram – TUNER/TAPE/PANEL Section – ..... 236-3. Block Diagram – AMP/POWER SUPPLY Section – ... 246-4. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 256-5. Printed Wiring Board – BD Board – ............................. 266-6. Schematic Diagram – BD Board – ................................ 276-7. Printed Wiring Boards – CHANGER Section – ............ 286-8. Schematic Diagram – CHANGER Section – ................ 296-9. Schematic Diagram
– MAIN Board (1/4) (Suffix-11) – ................................. 306-10. Schematic Diagram
– MAIN Board (2/4) (Suffix-11) – ................................. 316-11. Schematic Diagram
– MAIN Board (3/4) (Suffix-11) – ................................. 326-12. Schematic Diagram
– MAIN Board (4/4) (Suffix-11) – ................................. 336-13. Printed Wiring Board – MAIN Board (Suffix-11) – ..... 346-14. Printed Wiring Board – MAIN Board (Suffix-13) – ..... 356-15. Schematic Diagram
– MAIN Board (1/4) (Suffix-13) – ................................. 366-16. Schematic Diagram
– MAIN Board (2/4) (Suffix-13) – ................................. 376-17. Schematic Diagram
– MAIN Board (3/4) (Suffix-13) – ................................. 386-18. Schematic Diagram
– MAIN Board (4/4) (Suffix-13) – ................................. 396-19. Printed Wiring Boards – CD BUTTON/
HEADPHONE/MICROPHONE Boards – ..................... 406-20. Schematic Diagram – CD BUTTON/HEADPHONE/
MICROPHONE Boards – ............................................... 416-21. Printed Wiring Board – PANEL Board – ...................... 426-22. Schematic Diagram – PANEL Board – ......................... 436-23. Schematic Diagram – POWER Board (1/2) – ............... 446-24. Schematic Diagram – POWER Board (2/2) – ............... 45
6-25. Printed Wiring Board – POWER Board –(AEP, UK, CIS models) .................................................. 46
6-26. Printed Wiring Board – POWER Board –(MX model) ..................................................................... 47
6-27. Printed Wiring Board – POWER Board –(E51 model) ..................................................................... 48
6-28. Printed Wiring Board – TRANSFORMER Board –(AEP, UK, CIS models) .................................................. 49
6-29. Printed Wiring Board – TRANSFORMER Board –(MX model) ..................................................................... 50
6-30. Printed Wiring Board – TRANSFORMER Board –(E51 model) ..................................................................... 51
6-31. Schematic Diagram – TRANSFORMER Board –(AEP, UK, CIS, E51 models) .......................................... 52
6-32. Schematic Diagram – TRANSFORMER Board –(MX model) ..................................................................... 53
6-33. IC Pin Function Description ........................................... 57
7. EXPLODED VIEWS7-1. Case Section .................................................................... 637-2. Front Panel Section-1 ...................................................... 647-3. Front Panel Section-2 ...................................................... 657-4. Front Panel Section-3 ...................................................... 667-5. Front Panel Section-4 ...................................................... 677-6. Chassis Section-1 ............................................................ 687-7. Chassis Section-2 ............................................................ 697-8. CD Mechanism Deck Section-1
(CDM74F-K6BD71A) .................................................... 707-9. CD Mechanism Deck Section-2
(CDM74F-K6BD71A) .................................................... 717-10. CD Mechanism Deck Section-3
(CDM74F-K6BD71A) .................................................... 727-11. Base Unit Section (BU-K6BD71A) ............................... 73
8. ELECTRICAL PARTS LIST ............................... 74
• AbbreviationE51 : Chilean and Peruvian modelsMX : Mexican model
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CX-JT7
D324
CN309
IC303
CN312
– MAIN BOARD (Conductor Side) –
SECTION 1SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UPBLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-static break-down because of the potential difference generatedby the charged electrostatic load, etc. on clothing and the humanbody.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.
NOTES ON LASER DIODE EMISSION CHECKThe laser beam on this model is concentrated so as to be focusedon the disc reflective surface by the objective lens in the opticalpick-up block. Therefore, when checking the laser diode emis-sion, observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATIONCHECKCarry out the “S curve check” in “CD section adjustment” andcheck that the S curve waveforms is output three times.
• MODEL IDENTIFICATION– Back Panel –
MODEL PART No.
Chilean and Peruvian models 4-245-109-4[]
AEP, UK, CIS and Mexican models 4-245-109-5[]
UNLEADED SOLDERBoards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARKUnleaded solder has the following characteristics.• Unleaded solder melts at a temperature about 40 ˚C higher than
ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350 ˚C.Caution: The printed pattern (copper foil) may peel away if the
heated tip is applied for too long, so be careful!• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridges oc-cur such as on IC pins, etc.
• Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.
PART No.
• DISCRIMINATIONEither type of the MAIN board, Part No. 1-688-080-11 or 1-688-080-13 is used for Chilean and Peruvian models.Note: For other models, only one type of the MAIN board, Part No. 1-
688-080-13 is used.How to identify the type is described below.
D324
Suffix-11 ×Suffix-13 a
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HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF.
2 Turn the loading gear in the direction of arrow A.
1 Remove the case (side-L).
A
3 Pull-out the disc tray.
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SERVICE POSITION– CD mechanism deck –
– Tape mechanism deck –
main board (CN312)
Connect wire (flat type) (19 core) tomain board (CN312) and BD board (CN710).
BD board (CN710)
Connect wire (flat type) (13 core) topanel board (CN801) and mechanical deck.
panel board (CN801)
main board (CN203)
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CX-JT7SECTION 2GENERAL
This section is extracted frominstruction manual.
• LOCATION OF CONTROLS
1 DISC CHANGE/DISC SKIPRotates the CD trays.
2 POWER 6STANDBY/ONSwitches the unit on and off (standby).The red indicator flashes when receiving a signal fromthe remote.
3 TAPE A/BSelects Tape function, and deck A or B.
TUNER BANDSelects Tuner function and the radio band.
MD (VIDEO)Selects the function of external equipment connected toMD (VIDEO) jacks.
CDSelects CD function.
4 TREBLE/MIDDLEEnhances high or middle frequency sound.
5 CD SYNCStarts Automatic CD dubbing.
REC PAUSE/STARTStarts recording.
6 PHONES jackPlug in here an optional headphones set with a ministereo plug (ø3.5 mm). Speaker output is canceled.
MIC jack (Mexican, Chilean and Peruvianmodels)Connects the microphone here.
MIC MIXING (Mexican, Chilean andPeruvian models)Adjusts the microphone volume.
Main unit: frontRefer to the pages indicated in parentheses for details.
7 DISC DIRECT PLAY 1-3Selects a disc.
8 zOPEN/CLOSEOpens or closes the disc compartment.
9 HEAVY, VOCAL, SALSA, TECHNO,HIP HOP, MANUALActivates a graphic equalization curve.
0 MODESelects various modes (Play mode and Tape reverse, etc.)when used in combination with ENTER and MULTI JOG.
ENTERFixes the modes and the time (Play mode and Tapereverse, etc.) when used in combination with MODE andMULTI JOG.
! MULTI JOGCD: skips to a previous or a succeeding track.Tuner: selects a preset station.Clock and Timer: sets the time.Selects the mode and the time when used in combinationwith MODE and ENTER.
@ VOLUME (10)Adjusts the volume.
# BASSAdjusts low frequency sound.
SURROUNDSwitches surround on and off.
i-BassProduces rich and clear low frequency sound.
$ DISPLAYDisplays the time and the remaining time for CD.When the unit is off, press DISPLAY to switch betweenDEMO, Clock and ECO display modes.
ALBUMk/iSelects a previous album or a succeeding album withMP3-CDs.
PTY (AEP and UK models)Displays a program type for RDS (Radio Data System)
% rTUNING DOWN, tTUNING UP(f ,g)CD: searches a track in fast forward or fast reverseplayback when held down.Tape: fast forwards or rewinds the tape.Tuner: manually tunes down or up within the band.
aPAUSECD and Tapes: pauses playback.
dDIR (TAPE B)CD and Tapes: starts playback.
sSTOPCD and Tapes: stops playback.
Main unit: rearRefer to the pages indicated in parentheses for details.
1 AM LOOP, FM 75 Ω terminalsPlug in the supplied AM and FM antennas here.
2 MD (VIDEO) jacksAccepts analog sound signals from external equipment.Connect using an optional connecting cable with RCAphono plugs (red plug to R jack, white plug to L jack).Refer also to the operating instructions of your equipment.To switch function to external input, press MD (VIDEO).Tip:To change the displayed name for this function, turn theunit on, then hold down MD (VIDEO) and press POWERon the unit. Repeat the procedure to select “MD” or“VIDEO”.
3 SPEAKER terminalsConnect the speaker cord of the supplied front speakershere.
4 AC power cord
5 AC VOLTAGE selector (Chilean andPeruvian models)Switches AC voltage among 120V, 220V, and 230V- 240V.Make sure it matches your local voltage.
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Setting the clockUse the remote.1 Press CLOCK/TIMER/SET.
Go to step 3 when the time appears and the ‘hour’ flashes.
2 Press r or t repeatedly until “CLOCK”appears in the display and then press ENTER.
3 Press r or t repeatedly to set the hourand then press ENTER.
4 Pressr ort repeatedly to set the minuteand then press ENTER.The time display stops flashing and the clock starts from00 seconds.
•MULTI JOG is also available in place of r or t.
To display the timePress DISPLAY. The time will be displayed for 6 seconds.Tip: (Mexican, Chilean and Peruvian models)“AM 12:00” indicates midnight and “PM 12:00” noon.
If “- -:- -” appears when the unit is turned offThere has been a power interruption. Re-set the clock.
Buttons with the same or similar names with the main unitbasically have the same function.
1 POWER
2 1-0/10, +10Selects a CD track of the specified number.
The numbered buttons take on these functions below when pressedtogether with SHIFT held down:
EDITEnters Automatic CD dubbing mode when pressed instop mode.
BANDSelects Tuner function and the radio band.
TAPE A/BSelects Tape function, and deck A or B.
SPECTRUMChanges the spectrum analyzer display.
TUNER MODESwitches between stereo or monaural FM reception.
KARAOKE (Mexican, Chilean and Peruvianmodels)Selects Vocal Fader mode.
GEQEnters Graphic Equalizer setting mode.
TUNER MEMORYTuner: stores the received station in to preset.
SURROUNDSwitches surround on and off.
3 r, tCD: selects a track.Tuner: selects a preset station.BASS, MID and TREBLE: adjusts the level.Clock and Timer: sets the time.
4 ALBUM M/ NSelects a previous album or a succeeding album.
5 PLAY MODECD: selects a playback mode.Tape: selects a reverse mode
REPEATEnters CD repeat playback mode.
ENTER
6 CLOCK/TIMER/SETEnters timer setting mode.
CLOCK/TIMER/SELECTSelects timer playback, timer recording or timer off.
7 DISPLAYDisplays the time and the remaining time for CD.When the unit is off, press DISPLAY to switch betweenDEMO, Clock and ECO display modes.
8 SHIFTHold down when pressing a numbered button to changeits function to that printed above the number.e.g.)“Press SHIFT+BAND on the remote” indicates “Holddown SHIFT and press ‘2’ (BAND)”. Doing so makes yoube able to select Tuner function and the radio band.
Remote controlRefer to the pages indicated in parentheses for details.
9 FUNCTIONSwitches the active function among CD, TAPE, TUNERand MD (VIDEO).
0 DISC SKIPSelect a disc.
! c/dCD and Tape: starts playback.
sCD and Tape: stops playback.
f,gCD: searches a track in fast forward or fast reverseplayback when held down.Tape: fast forwards or rewinds the tape.Tuner: manually tunes down or up within the band.
aCD and Tape: pauses playback.
@ SLEEPSwitches the sleep-timer on/off and selects the duration.
# VOLUME (+,-)Adjusts the volume.
$ SOUNDSelects BASS, MID or TREBLE setting mode
CLEAR
(AEP, UK and CIS models)
Clears a track of the CD programmed playback and aRadio preset station.
Note
The buttons not explained above (KARAOKE) do notoperate for this unit.
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• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3DISASSEMBLY
Set
3-2. CASE(SIDE-L/R)(Page 10)
3-3. CASE (TOP)(Page 10)
3-4. TRAY PANEL(Page 11)
3-6. FRONT PANELSECTION(Page 12)
3-8. REAR CABINETSECTION(Page 13)
3-7. MECHANICALDECK(Page 12)
3-9. MAIN BOARD(Page 13)
3-10. POWER BOARD(Page 14)
3-11. TRANSFORMER BOARD(Page 14)
3-16. MOTOR GEAR ASSY (SLED) (M701),BD BOARD(Page 17)
3-17. OPTICAL PICK-UP(KSS-213D)(Page 17)
3-15. BASE UNIT(BU-K6BD71A)(Page 16)
3-12. TABLE ASSY(Page 15)
3-13. MOTOR (TB)BOARD(Page 15)
3-14. MOTOR (LD)BOARD(Page 16)
3-5. CD MECHANISM DECK(CDM74F-K6BD71A)(Page 11)
Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.
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1 two screws(BVTP3 × 10)
7 case (top)
5 claw
3 claw
4 claw
6
2 claw
1 two screws(BVTP3 × 10)
6 two screws(BVTP3 × 10)
2 three screws(case3 TP2)
5 case (side-R)
7 three screws(case3 TP2)
3
8
9
4
0 case (side-L)
3-3. CASE (TOP)
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (SIDE-L/R)
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3-4. TRAY PANEL
3-5. CD MECHANISM DECK (CDM74F-K6BD71A)
1 Turn the loading gear in the direction of arrow A.
A
4 tray panel
3 four claws
2 Pull-out the disc table.
3 screw (BVTP3 × 10)
4 screw (BVTP3 × 10)
5 two screws(BVTP3 × 10)
1 wire (flat type) (19 core)(CN312)
6 CD mechanism deck(CDM74F-K6BD71A)
2 connector (CN701)
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3-6. FRONT PANEL SECTION
3-7. MECHANICAL DECK
2 connector (CN310)
4 connector (CN203)
3 connector (CN202)
5 wire (flat type) (9 core)(CN311)
7 front panel section
6 three screws(BVTP3 × 10)
1 wire (flat type) (31 core)(CN304)
3 mechanical deck 1 wire (flat type) (13core)
2 six screws(BVTP3 × 10)
4 ground mechanical plate
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6 rear cabinet section
5 five screws(BVTP3 × 10)
2 connector (CN303)
1 wire (flat type) (11core: CIS, MX, E51)(15core: AEP, UK)
4 cover (duct)
3 two screws(BVTP3 × 10)
3-8. REAR CABINET SECTION
3-9. MAIN BOARD
1 two screws(BVTP3 × 10)
3 main board
2 two connectors(CN502, CN503)
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3-10. POWER BOARD
3-11. TRANSFORMER BOARD
4 power board
2 two screws(BVIT3B-8R W/O SLOT)
3 two screws(BVIT3B-8R W/O SLOT)
1 connector (CN902)
3 trans holder
2 screw(BVTT3 × 8)
5 four screws(ITC+4-8R)
1 screw(BVTP3 × 10)
6 transformer board4
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3-12. TABLE ASSY
3 wire (flat type) (5 core)(CN702)
4 hook
1 Turn the loading gearin the direction of arrow A.
A
5 two claws
2 Pull-out the table assy.6 table assy
3-13. MOTOR (TB) BOARD
2 table (loading)
4 connector(CN731)
1 screw(PTPWH M2.6)
5 two screws(BTTP M2.6)
6 motor (TB) board
3 belt (table)
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3-14. MOTOR (LD) BOARD
3-15. BASE UNIT (BU-K6BD71A)
2 connector(CN704)
3 two screws(BTTP M2.6)
4 motor (LD) board
1 belt (loading)
3 four coil springs(insulator)
4 four insulators
5 base unit (BU-K6BD71A)
1 four screws(BTTP M2.6)
2 four stoppers (BU)
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1 Remove twosolders.
qa BD board
2 two screws(P2 × 3)
6 claw
7 gear (A)
8 gear (B)
5 wire (flat type) (16 core)(CN708)
0 motor gear assy (SLED)(M701)
3 screw (P2.6 × 6)
9 Remove two solders.
4
2 sled shaft
1 Slide the leverin the direction of arrow A.
3 Remove the optical pick-up(KSS-213D) in the directionof arrow B.
A
B
3-16. MOTOR GEAR ASSY (SLED) (M701), BD BOARD
3-17. OPTICAL PICK-UP (KSS-213D)
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CX-JT7SECTION 4TEST MODE
[COLD RESET]• The cold reset clears all data including preset data stored in the
RAM to initial conditions. Execute this mode when returningthe set to the customer.
Procedure:1. Press the [POWER] key to turn the power ON.2. Press three keys of x , [ENTER] and [POWER] simultaneously.3. The message “RESET” is displayed on the fluorescent indicator
tube momentarily, then becomes standby states.
[TUNER STEP CHANGE-OVER](Except AEP, UK and CIS models)• A step of AM channels can be changed over between 9 kHz and
10 kHz.Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [TUNER BAND] key to select “AM”.3. Press the [POWER] key to turn the power OFF.4. Press two keys of [ENTER] and [POWER] simultaneously.5. The message “9K STEP” or “10K STEP” is displayed on the
fluorescent indicator tube, and thus the channel step is changedover.
[CD SHIP MODE]• This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customerafter repair.
Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. Press two keys of [CD] and [POWER] simultaneously.4. The message “LOCK” is displayed on the fluorescent indicator
tube, and the CD ship mode is set.
[CHANGE-OVER FUNCTION OF MD/VIDEO]• This mode is used to enable function of external input to change
over between MD and VIDEO.Procedure:1. Set to standby state.2. Press two keys of MD (VIDEO) and [POWER] simultaneously.3. The message “MD” or “VIDEO”is displayed on the fluorescent
indicator tube, and the function of external input is changedover.
[CD TRAY LOCK MODE]• This mode is used to unable to take sample disc out of tray in
the shop.Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. While pressing the x key, press the Z key for 5 seconds.4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the tray is locked. (Even if pressingthe Z key, the message “LOCKED” is displayed on thefluorescent indicator tube and the tray is locked)
5. To release from this mode, while pressing the x key, pressthe Z key for 5 seconds.
6. The message “UNLOCKED” is displayed on the fluorescentindicator tube and the tray is unlocked.
[AMP TEST MODE]• This mode is used to set the parameter of AMP IC for adjustment
of tone quality and VACS level and display VACS status.Procedure:1. Press the [POWER] key to turn the power ON.2. Press three keys of x , [HEAVY] and [HIP POP] simultaneously.3. When the AMP test mode is activated, the message “AMP
TEST” is displayed on the fluorescent indicator tubemomentarily.
4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]simultaneously, mode is changed over to parameter setting ofAMP IC and display of VACS status.
5. When the VACS ON, the message “V2255255” is displayed onthe fluorescent indicator tube, and when the VACS OFF, themessage “2255255” is displayed on the fluorescent indicatortube.
6. Press the [VOCAL] key, DBFB ON/OFF is changed over.7. Press the [ENTER] key, surround ON/OFF is changed over.8. Press the [MANUAL] key, EQ band is changed over to LOW,
MID or HIGH.9. Press the [HIP POP] and [TECHNO] key, EQ curve adjustment
value is changed over between –8dB to +8dB.10. To release from this mode, press two keys of [HEAVY] and
[TECHNO] simultaneously.
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CX-JT7
[AGING MODE]• This mode can be used for operation check of CD section and
tape deck section.CD section and tape deck section work in parallel.
If an error occurred:The aging operation stops only an error occurred sections anddisplay then status.
If no error occurs:The aging operation continues repeatedly.
Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. Set disc on the tray and set tape into the deck.4. Set the “ALL DISCS” mode and “REV OFF” mode.5. Press three keys of x , [HEAVY] and [DISC CHANGE/DISC SKIP]
simultaneously.6. The message “AGING” is displayed on the fluorescent indicator
tube momentarily, then aging operations of CD and tape arestarted at the same time.
7. To release from this mode, operate the “COLD RESET”.
1. Display at the Aging ModeDisplay operating state of CD section and tape deck sectionalternately.If an error occurred, stop display which that section.
2. CD SectionThe sequence during the aging mode is following as below.Display at the aging mode is the same as the normal operation.
Aging mode sequence (CD section) :
Start (from disc 1)
Disc chucking
TOC read
Play first track for 2 seconds
Play last track for 2 seconds
EX-change open/close
Open the disc tray
Disc skip
Close the tray
Change the next disc.
3. Tape Deck SectionThe sequence during the aging mode is following as below.If an error occurred, stop display that step.
Aging mode sequence (tape deck section) :
Rewind the tape A and B“AAG-1 or 2”
Shut off
FWD play the tape A“AAG-3”
2 minutes
Fast forward the tape A“AAG-4”
Shut off or 20 seconds
REV play the tape A“AAG-5”
2 minutes
Rewind the tape A“AAG-6”
Shut off
FWD play the tape B“BAG-3”
2 minutes
Fast forward the tape B“BAG-4”
Shut off or 20 seconds
REV play the tape B“BAG-5”
2 minutes
Rewind the tape B“BAG-6”
Shut off
Note: “*AG-*” is display of each step.
-
20
CX-JT7
[GC TEST MODE]• This mode is used to check the fluorescent indicator tube, LED
and key.Procedure:1. Press the [POWER] key to turn the power ON.2. Press three keys of x , [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously.3. Fluorescent indicator tube and LEDs are all turned ON.4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]
simultaneously, mode is changed over.5. In the key check mode, press each key, the defined key number
of every each key list is displayed on the fluorescent indicatortube.
6. In the key count check mode, “K-CNT 0” is displayed on thefluorescent indicator tube. Each time a key is pressed, “K” valueincreases. However, once a key is pressed, it is no longer takeninto account.
7. In the headphone input check mode, connect the headphone,the message “H_P ON” is displayed on the fluorescent indicatortube, and disconnect the headphone, the message “H_P OFF”is displayed on the fluorescent indicator tube.
8. In the volume check mode, turn the [VOLUME] knob, thedisplay on the fluorescent indicator tube is changed over to“VOL UP”, “VOL FLAT” or “VOL DOWN”
[MC TEST MODE]• This mode is used to check operations of Amplifier.Procedure:1. Press the [POWER] key to turn the power ON.2. Press three keys of x , [HEAVY] and [DISC DIRECT PLAY 3]
simultaneously.3. When the MC test mode is activated, the message “MC MODE”
is displayed on the fluorescent indicator tube momentarily, thenVACS level is displayed on the fluorescent indicator tube.
4. Press the [TECHNO] key, the display on the fluorescentindicator tube is changed over to “EQ MAX”, press the[MANUAL] key, the display on the fluorescent indicator tube ischanged over to “EQ MID”, press the [HIP POP] key, thedisplay on the fluorescent indicator tube is changed over to “EQMIN”,
5. Turn the [VOLUME] knob, the display on the fluorescentindicator tube is changed over to “VOL MAX”, “VOL MID” or“VOL MIN”
6. Press the [ENTER] key, VACS ON/OFF is changed over.7. When the [REC PAUSE/START] key is pressed with a tape set
in the deck-B, the function is switched “MD” or “VIDEO” andrecording starts. When the m or M key is pressed duringrecording, the tape is rewound back to the beginning ofrecording, the function is switched to “TAPE B”, then playbackstarts.
8. When the [CD SYNC] key is pressed with the test tape (AMS-100, AMS-110A) in the deck, number of space between tunesis counted, then if AMS-110A is set, “OK” is displayed on thefluorescent indicator tube and if AMS-100 is set, “NG” isdisplayed on the fluorescent indicator tube.
9. To release from this mode, press the [POWER] key.
[MODEL, DESTINATION AND VERSION DISPLAY]• This mode is used to check the model, destination and software
version.Procedure:1. Set to the standby state.2. Press three keys of x , [TECHNO] and [HEAVY] simultaneously.3. When the model, destination and version display mode is
activated, the model an destination is displayed on thefluorescent indicator tube.
4. Press two keys of [HEAVY] and [DISC DIRECT PLAY 2]simultaneously, mode is changed over to model and destinationdisplay mode and version display mode.
5. In the version display mode, press the [DISC DIRECT PLAY 3]key, display is changed over to version display and year, monthand day of the software creation display.
6. To release from this mode, press the two keys of [TECHNO]and [HEAVY] simultaneously.
[CD ERROR CODE DISPLAY]• This mode can be used for error display of CD section.Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. Press three keys of x , [HEAVY] and [DISC DIRECT PLAY 1]
simultaneously.Note: Error code is not displayed on the liquid crystal display.
[CD SERVICE MODE]• This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the optical pick-up.Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. Press three keys of x , [HEAVY] and Z simultaneously.4. When the CD service mode is activated, the message “TRVS
ON” is displayed on the fluorescent indicator tube.5. Press the M key, optical pick-up move to outside track and
the message “SLED OUT” is displayed on the fluorescentindicator tube.
6. Press the m key, optical pick-up move to inside track andthe message “SLED IN” is displayed on the fluorescent indicatortube..
7. Press the [TECHNO] key, traverse ON/OFF is changed over.
[5 REPEAT LIMIT CANCEL]• Number of repeat for CD playback is 5 times when the repeat
mode is “REPEAT”. This mode is used to enables CD to repeatplayback for limitless times.
Procedure:1. Press the [POWER] key to turn the power ON.2. Press the [CD] key to select “CD”.3. Press three keys of x , [HEAVY] and Y simultaneously.
-
CX-JT7
2121
CD SECTION
Note:1. CD Block is basically designed to operate without adjustment. Therefore,
check each item in order given.2. Use YEDS-18 (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10MΩ impedance.4. Clean the object lens by an applicator with neutral detergent when the
signal level is low than specified value with the following checks.
S-CURVE CHECK
Procedure :1. Connect an oscilloscope to TP (FE) and TP (VC).2. Turn the power on.3. Load a disc (YEDS-18) and actuate the focus search. (In
consequence of open and close the disc tray, actuate the focussearch)
4. Confirm that the oscilloscope waveform (S-curve) issymmetrical between A and B. And confirm peak to peak levelwithin 3 ± 0.5 Vp-p.
Note: • Try to measure several times to make sure than the ratioof A : B or B : A is more than 10 : 7.
• Take sweep time as long as possible and light up thebrightness to obtain best waveform.
RF LEVEL CHECK
Procedure :1. Connect an oscilloscope to TP (RF) and TP (VC).2. Turn the power on.3. Load a disc (YEDS-18) and playback.4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.
BD boardOscilloscope
TP(FE)TP(VC)
symmetry
S-curve waveform
within 3 ±0.5Vp-p
A
B
TP(RF)
BD boardoscilloscope
TP(VC)
Note: Clear RF signal waveform means that the shape “ ◊ ” can be clearlydistinguished at the center of the waveform.
Connecting Location: BD board
RF signal waveform
VOLT/DIV : 200mVTIME/DIV : 500ns
level : 1.3 ±0.3Vp-p
TP (VC)TP (RF)
TP (FE)
IC721
– BD Board (Conductor side) –
SECTION 5ELECTRICAL ADJUSTMENTS
-
CX-JT7
2222
SECTION 6DIAGRAMS
6-1. BLOCK DIAGRAM – CD Section –
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3(+)
FOIN
20TIN
3SPIN
7LDS
25SLIN
17 VO3(–)
11 VO2(+)12 VO2(–)
26 VO4(+)
27 VO4(–)
2 VO1(+)
1 VO1(–)
A
C
B
D
E
F
LD
PD
RF AMP, FOCUS/TRACKING ERROR AMP,DIGITAL SIGNAL PROCESSOR, DIGIRAL SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTERIC721
21
FDO
23
SLDO
22
SPDO
25
CONT
4
A
B
D
E
F
C I-V A
MP
DETECTOR
LDPD
LASER DIODE
OPTICAL PICK-UPBLOCK
(KSM-213DCP)
2-AXISDEVICE
(FOC
US)
(TRA
CKIN
G)
M702(SPINDLE)
M701(SLED) M
M
FOCUS/TRACKING COIL DRIVE,SPINDLE/SLED MOTOR DRIVE
IC722
49
48X701
16.9344MHz
S701(LIMIT)
79 DATAIN80 DATACK
5 C2FIN
1 LRSY
2 ADDATA3 ADBCK4 ADLRCK
7 CKIN
9 CKOUT
78 RESB
99 I-LC78646/LC78684 DI98 O-LC78646/LC78684 DO100 O-LC78646/LC78684 CLK5 O-LC78646 CE85 I-WRQ
86 I-CD DRF4 O-LC78646 RESET
60DATA
59DATACK
52C2F
58LRSY
57ASDFIN
56ASDACK
55ASLRCK
5416MOUT
106
76 66
53EFLG
50FSX/16MIN
73 CMDOUT74 CMDIN
CE FSYN
CO-
LC78
684
CEI-L
C786
84 S
YNC
75 CL
26MP3RES
64DO
63DI
62CL
96I-CD NUMBER SENS
22I-BU IP DOWN/
CD OPEN CLOSE
9RINLM-R
11RESET
1O-SYS-MUTE94O-POWER RELAY29I-HOLD
S-MUTEO-POWER
HOLD61
CE
65*WRQ
67DRF
72CD MUTE
66*RES
4 OUT1
2 OUT2
M751(LOADING) M
LOADING MOTOR DRIVEIC701
MP3 DECODERIC801
SYSTEM CONTROLLERIC901 (1/2) S751
OPEN/CLOSEDETECT
OPEN
CLOSE
LEVEL SHIFTQ731
TABLE ADDRESSSENSOR
IC731
+ROTARY
ENCODERS711
7FINLM-F
9RINTM-R
4 OUT1
2 OUT2
M741(TABLE) M
TABLE MOTOR DRIVEIC712
7FINTM-F
LM-F, LM-R,TM-F, TM-R
D
S-MUTE,O-POWER, HOLD
B
42LCHO
45RCHO
R-CH
CD-LA
APC
FIN2
FIN1
LDD
LDS
TIN2
TIN1
XOUT
XIN
RF4
EFMIN3 ERROR
CORRECTEQ,AGC
COMMANDINTERFACE
CLOCKGENERATOR
PH, BH
RF AMP
TBAL A/DCONVERTER
D/ACONVERTER
EXTERNALAUDIO IN
SERIAL OUT
D/ACONVERTER
SERVOPROCESSOR
AUTOMATICPOWER CONTROL
Q701
27I-POWER DOWN POWER DOWN
RESETRESET,
POWER DOWNC
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
(Page 24)
(Page 24)
(Page 24)
(Page 23)
R-CH
DISC TRAYADDRESS DETECT
I/01
– I/0
16A0
– A
8
MDA
TA0
– M
DATA
15M
ADRS
0–
MAD
RS8
27 OE45OEB13 WE42WEB14 RAS41RASB29 LCAS43CASLB28 UCAS44CASUB
IC802MEMORY
2-5,
7-1
0,31
-34,
36-
39
23-3
0, 3
3-40
60-5
3, 5
0
16-1
9, 2
2-26
MUTINGQ311
MUTING CONTROLSWITCH
Q312
-
CX-JT7
2323
6-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section –
10CAPSTAN/REELMOTOR DRIVE
Q601
11PLUNGER DRIVE
(DECK-A)Q602
MM
TAPE MECHANISMDECK BLOCK
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
LED DRIVER,TAPE MECHANISM CONTROLLER
IC202
MOTOR3 DATA4 CLOCK
87 I-LC72121 DI92 O-LC72121/BU2099 CLK9 O-LC72121 CE
88 I-TUNER TUNE97 I-TUNER STEREO
2 I-BU1924 DI3 I-BU1924 CLK
21 I-MIC/I-TU SIG
19 I-SPEANA M
91 O-LC72121/M61529/BU2099 DO
5 LCK18 SO
A-SOL
GTAPE-L, REC-L
(Page 24)
KDI, SO, CLK, MCLK, LCK,
(Page 24)
JTUNER-L
(Page 24)
DLM-F, LM-R, TM-F, TM-R
(Page 22)
TUNER UNIT
AM LOOP
FM ANT
AM ANT
L-CH
R-CH R-CH
TU-MUTE
DI
DICL
K
CLK
S-OU
TLC
KDI
BIAS OSCL201
REC BIASSWITCH
Q228+9V
BIAS OSCQ223
ERASE
HRPE1(REC/PB/ERASE)
(DECK-B)
HP1(PB)
(DECK-A)
L-CH
R-CH R-CH
R-CH
L-CH
R-CH R-CH
18 I-SPEANA L
20 I-SPEANA H
BAND-PASSFILTER
Q204 – 206
SPEANA AMPQ201, 202
B+ SWITCHQ921
FL902FLUORESCENT
INDICATOR TUBE
MUTINGQ219, 221
12PLUNGER DRIVE
(DECK-B)Q603
B-SOL
LED213
LED901
A-PHOTO
B-SOL
A-SOL
CAPM+
B-PHOTOA-HALFB-HALFA-MODEB-MODEREC (FWD)REC (REW)
9 I-BASS
+3.3V
B+
D603 – 610I-B-PHOTO
I-B-HALF
I-REC (FWD)S10/I-REC (REW)
S6 –
S10
S1 – S5,S11 – S23
G1 – G11
48524953
5055
S7/I-A-PHOTO
95O-KEYSCAN
S8/I-A-HALF
U8
U9
U7S10/U11
S7/U5
S8/U6
S9/I-B-MODE4754
S6/I-A-MODES9/U10
S6/U4
U8
U9
U7U11
U5
U6
U10U4
93O-POWER LED
8O-BU2099 LCK
41 –
45,
56
– 68
30 –
40
MIC, SA SA
MIC
E
SO
MCL
K
LCK
X90132.768kHz
13
12
XT2
XT1
7O-M61529 CLK
16
15X902
8.64MHzCF2
CF1
i-BASS
LED3038 CD3
3
LED3027 CD2
2
LED3016 CD1
1
POWER 1 STANDBY/ON(Page 24)
(AEP, UK)
(Except AEP, UK, CIS)
SYSTEM CONTROLLERIC901 (2/2)
FM 75Ω(COAXIAL)
LED DRIVERIC201
3 DATA4 CLOCK5 LCK
18 SO
LED2049 TAPE
TAPE A/B
LED20510HEAVY
HEAVY
LED20611VOCAL
VOCAL
LED20712SALSA
TECHNO
LED20813TECHNO
SALSA
LED21014HIP POP
HIP POP
LED21115MANUAL
MANUAL
LED2038 AUX
MD (VIDEO)
LED2027 TUNER
TUNER BAND
LED2016 CD
CD
DISC DIRECT PLAY
ANTENNA
34
32BIN (L)
AIN (L)
28 27EQOUT (L)
26PB-OUT (L)
TAI (L) MUTE
DECK A/B SELECT SWITCH, REC/PB EQ AMPIC201 (SUFFIX-11) IC201 (SUFFIX-13)
REC-OUT (L) REC-IN (L)
21 EQ 24
DOCLK
CETUNED
ST
RDS DATARDS INT
MULTI CONTROLLERIC309 (SUFFIX-11) IC309 (SUFFIX-13)
7 BIAS
1514
6 REC
11 TUNER MUTE
MUTE-ON/OFFREC MUTE-ON/OFF
910 REC MUTE
PB MUTE8 A/B13A/B
REC ON/OFFSWITCH
Q222, 225
3DATA4CLOCK5LCK
18SO
CLK
S-OU
T
13LM-L (CD)LM-F
12LM-R (CD)LM-R
TAPE-L
REC-L
15TM-L (CD)TM-F
14TM-R (CD)TM-R
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
• R-ch is omitted due to same as L-ch.
HSP-F
(Page 24)16FRONT SPON/OFF
76 I-HP MUTE
KEY ACTIVESWITCH
Q504, 505
28 I-RMCREMOTE CONTROL
RECEIVERIC802
S301 – 309,S311 – 331
(FRONT PANEL KEY)
83 I-VOL B84 I-VOL AROTARY
ENCODERS801
VOLUME
79 I-BASS B80 I-BASS AROTARY
ENCODERS802
TREBLEMIDDLE
81 I-JOG B82 I-JOG AROTARY
ENCODERS803
BASS
77 I-TRE B
I-KEY1 –I-KEY3
78 I-TRE AROTARYENCODER
S804
MULTI JOG
26 –
24
HPF(Page 24)
+4V
+3.3V (SUB)
-
CX-JT7
2424
6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section –
J221
R-CH
PHONES
SPEAKER
+–
–+
R
L
JK502
R-CH
–VL
–VP
+VP
–VHOUTPUT LEVEL
DETECTQ23, 24
BIASQ507, 509
HOLDQ7 – 9
FEED BACKSWITCH
Q491
FINAL DRIVEQ501, 503
SWITCHINGQ17, 19, 22
SWITCHINGQ18
R-CH
R-CH
+
+
R-CH
CASCADEQ511, 513, 515
MIC AMPIC401 (1/2)
MIC AMPIC401 (2/2)
MUTINGQ525
CURRENTMIRROR
Q521, 523
FREQUENCYCONTROL
Q314 – 316
BASS BOOSTON/OFF SWITCH
Q323
R-CH ++VL
+VHOUTPUT LEVEL
DETECTQ20, 21
1
14
6
9
BASS BOOST ENHANCERIC303 (SUFFIX-11) IC303 (SUFFIX-13)
INPUT SELECTSWITCH, TONE CONTROL, ELECTRICAL VOLUME, BASS BOOST AMPIC301 (SUFFIX-11) IC301 (SUFFIX-13)
BASS BOOST CONTROLLERIC310 (SUFFIX-11) IC310 (SUFFIX-13)
CTRL1 –CTRL3
INA
VREF
7
BBE
13
GIN
I-BAS
S
19
SAOU
TSAMIC
OUTA
29TOUT 25OUT2
VR401J401
3
DATA
4
CLOC
KLC
K
S-M
UTE
O-PO
WER
O-PO
WER
HOLD
CLK
SO
5
LCK
35
RECB
-2
12 – 10
BASS BOOSTCONTROL
Q317 – 320
BB CTRL1 –BB CTRL4
16 – 13
40 CD-L
MD-L
2 MIC
39 TUNER-L
38 TAPE-L
28 VOLIN2
MIC LEVELAGCQ401
–30V REGULATORQ533 – 536 (Except AEP, UK, CIS)
Q534 – 536 (AEP, UK, CIS)
(AC IN)
SUB POWERTRANSFORMER
PT902
MAIN POWERTRANSFORMER
PT901
RECTD2
+VL
TOPOWER AMP
BLOCK
–VL
VL
VL
VF1
TOFLUORESCENT
INDICATOR TUBE
VF2
RECTD1 (Except AEP, UK, CIS)
D3 – 6 (AEP, UK, CIS)
+VH
–VH
VM+9V
VM+10V
–VFL
EVER+10V
VH
VH
RECTD319 – 322
RECTD301 – 304
VM
VMVCC
RECTD902 – 905
DECK+9V, M+9V
+4VREGULATOR
IC501+3.3V (SUB)
POWER DOWN
RESET
D504
RESET SIGNALGENERATOR
IC502
MIC MIC MIXING
CD-LA
D402
TUNER-LJ
TAPE-L, REC-L TAPE-L
REC-L
G
DI, SO, CLK,MCLK, LCK
K
RESET,POWER DOWN
C
21
DATA
22
CLOC
K
D401
MIC, SA(Page 23)E
S-MUTE, O-POWER, HOLDB
: MIC INPUT
(Page 22)
H (Page 23)
HP F (Page 23)
(Page 22)
(Page 23)
(Page 23)
(Page 23)
(Page 22)
(Except AEP, UK, CIS)
(Chilean, Peruvian)(Chilean, Peruvian)
ExceptChilean, Peruvian
AC VOLTAGES901
ExceptChilean, Peruvian
VOLTAGESELECTOR
RY901POWER ON/OFFRELAY DRIVE
Q330, 331RY902
+10VREGULATOR
IC313
+9VREGULATOR
IC308D102
P+7VD313 – 315
+9VREGULATOR
IC305
+4VREGULATOR
IC306
B+ SWITCHQ301, 302
RELAY B++9V
+1.8V(MP3)
+3.3V (MAIN)
+1.8VREGULATOR
IC803
RESET SWITCHQ901
R-CH
SPEAKER ON/OFFRELAY DRIVE
Q304
FAN MOTORON/OFF SWITCH
Q327, 328, 372, 373
RY501
M731(FAN)M
SP-F
: TAPE PLAY
: REC
: CD PLAY
: TUNER (FM/AM)
SIGNAL PATH
: MD (VIDEO) IN
R-ch is omitted due to same as L-ch.
R-CH
JK302
L
R
MD (VIDEO)IN
37
BASS BOOSTCONTROL
Q492R-CH
BUFFERIC304
CENTER VOLATAGEGENERATOR
Q324
VM+10V
MCL
KDI
+
R-CH
OVER LOADDETECT
Q505
DC DETECTQ5, 6
THERMAL DETECTQ10, 11+
+TH501,
502
+
R-CH +
MUTING CONTROLSWITCH
Q527
POWER OFFMUTING DRIVER
Q529, 530
D513VM+10V
HOLDQ12
OVER CURRENTDETECT
Q13
PRE DRIVEQ517, 519
+4V
IC304 (SUFFIX-11) IC304 (SUFFIX-13)
IC313 (SUFFIX-11) IC313 (SUFFIX-13)
IC308 (SUFFIX-11) IC308 (SUFFIX-13)
IC305 (SUFFIX-11) IC305 (SUFFIX-13)
IC306 (SUFFIX-11) IC306 (SUFFIX-13)
-
CX-JT7
2525
6-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:• X : parts extracted from the component side.• Y : parts extracted from the conductor side.• : Pattern from the side which enables seeing.(The other layers' patterns are not indicated.)
Note on Schematic Diagram:• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolyticsand tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwisespecified.
• 2 : nonflammable resistor.• C : panel designation.
• A : B+ Line.• B : B– Line.• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.no mark : FM( ) : CD PLAY[ ] : TAPE PLAY (DECK-A){ } : TAPE PLAY (DECK-B)〈〈 〉〉 : REC
∗ : Impossible to measure• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-tion tolerances.
• Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.
• Circled numbers refer to waveforms.• Signal path.
F : TUNER (FM/AM)J : CD PLAYE : TAPE PLAY (DECK-A)d : TAPE PLAY (DECK-B)G : RECj : MD (VIDEO) INN : MIC INPUT
• AbbreviationE51 : Chilean and Peluvian modelsMX : Mexican model
• Circuit Boards Location
Caution:Pattern face side: Parts on the pattern face side seen from(Conductor Side) the pattern face are indicated.Parts face side: Parts on the parts face side seen from(Component Side) the parts face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
B
These are omitted.
C E
Q
• Indication of transistor.
Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.
BD board
MOTOR (TB) board
TUNER PACK
DRIVER board
MAIN board
POWER board
TRANSFORMER board
MICROPHONE board(MX, E51)
HEADPHONE board
PANEL board
CD BUTTON board
MOTOR (LD) board
SW board
SENSOR board
-
CX-JT7
2626
6-5. PRINTED WIRING BOARD – BD Board – • See page 25 for Circuit Boards Location. :Uses unleaded solder.
C860
R860
C817FB803
FB80
5
FB804
FB806 R806R807
R747 R746
3 4
5
IC801
IC802
BD BOARD(COMPONENT SIDE)
1-688-077- (11)
11
OPTICALPICK-UPBLOCK
(KSM-213DCP)
IC722
IC803
IC721
BD BOARD(CONDUCTOR SIDE)
1-688-077- (11)
(SUFFIX-11)
(SUFFIX-13)11
M702(SPINDLE)
M
+
–
M701(SLED)M
+
–
S701(LIMIT IN)
TP(RF)
TP(FE)
TP(TE)
TP(VC)
E
BC
MAINBOARDCN321
A1
MAINBOARDCN321
A2
A
B
C
D
E
F
1 2 3 4 5 6 7 8 9 10 11
7 114 8
22 2815 21
• SemiconductorLocation
Ref. No. Location
IC721 D-8IC722 C-9IC801 E-3IC802 F-3IC803 F-9
Q701 B-7
(Page 34)
(Page 35)
-
CX-JT7
2727
6-6. SCHEMATIC DIAGRAM – BD Board – • See page 54 for IC Block Diagrams. • See page 54 for Waveforms.
The components identified by mark 0 or dottedline with mark 0 are critical for safety.Replace only with part number specified.
CN708
C711
C712
C721
C719
C720
C718
C717
C715
C716
C714
C706
C707
R7
39
R7
40
R7
41
M702
M701
R738
C747 C748
R707
C705
C709
R730
C746 C708 R729
C7
43C744
R725R726
R731
C754C742
C753
R760
C756
C722
FB707FB708
R7
20
R7
19
R7
18
R721
C830
R826
R827
R828
R825
C825
R823
R824
C829
FB808
FB701
R765 C734
C735
X701
C732
C733
C729
C811
R817
R818
C812
R819R820
FB807FB801
FB802
C844
C856
C810
R801 R802
C837
R8
03
R8
04
R8
05
C813
C814
C843
C803 C805
C815
C816
R834
R833 R832
IC803
FB8
03
FB8
05
FB8
06
CN710
(SUFFIX-11)
(SUFFIX-13)
C802C807
R732
C806
C8
17
R7
17
R7
16
C741
R728
R745
R701
R706
R708C710
R727C703
C723
R711
R703
R704
R705
C702
C701
R702
FB8
04
C831
C704
R709
S701
R714
R715
TP
TP
TP
TP
C7
13
R829
R747
R746
R713
C823
C824
R744
R807
R806
IC801
C804
C859
C858
C857 C860
R860
C835
C834
C731
Q701
R722
IC721
IC722
IC802
16P
0.1
47p
0.1
0.0047
100p
1
0.0047
1 50V
0.001
0.1
0.1
1006.3V
0 6.8
k
0
6.8k
0.1 22010V
10
0.001
1006.3V
1.2k
0.1 0.1 12k
0.0
47
1
680680
2.2k
47p0.1
47p
100
47p
0.1
10
0
10
0
10
0
100
22p
100
100
100
100
47p
100
100
47p
1M 15p
18p
16.9344MHz
0.01
0.01
22010V
0.1
3.3k
150
1
1k1k
0.1
1
0.1
100 100
0.1
10
0
10
0
10
0
0.1
1006.3V
0.1
0.01 1006.3V
22010V
0.1
100
100 2.2k
MM1571J
19P
0.11006.3V
0
0.1
0.1
10
0
10
0
0.1
47k
100
47k
47k
10k0.047
1000.1
1006.3V
330
15k
15k
15k
1006.3V
0.1
15k
22p
476.3V
27k
100
100
0.0
04
7
100
33
33
1k
47p
47p
100k
100
100
LC78684E-E
22p
22p
22p
22p
100p
100
0.1
22010V
0.1
UP0411600SO
1k
LC78646E-E
BA5836FP
LC32V4265CT-25
DR
F
DRF
CD
_R
ES
CD_RES
CD
_W
RQ
CD_WRQ
DO
DO
DI
DI
CL
CL
CD
_C
E
CD_CE
WE
RA
S
A0
A1
A2
A3
A4
A5
A6
A7
A8
UC
AS
LC
AS
I/O
9
I/O
10
I/O
11
I/O
12
I/O
13
I/O
14
I/O
15
I/O
16
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
I/O
8
I/O
1
I/O
2
I/O
3
I/O
4
I/O
5
I/O
6
I/O
7
I/O
8
I/O
9
I/O
10
I/O
11
I/O
12
I/O
13
I/O
14
I/O
15
I/O
16
MP
3_C
E
MP3_CE
FSYNC
FS
YN
C
A0
A1
A2
A3
A4
A5
A6
A7
A8
OE
UCAS
LCAS
WE
RAS
OE
F
GN
D
VC
VC
C E
C B NC
A D
VC
VCC
E
D
A
B
C
F
GND
LD
VR
PD
F+
T-
T+
F-
(SLED)
(SPINDLE)
GN
D
SLIN
IN4
BIA
S
VC
C
VC
C
TIN
IN3
RES
ET
VO
3(+
)
VO
3(-
)
VO
4(-
)
VO
4(+
)S
PIN
RES
ET
REG
-B
REG
OU
T
MU
TE
GN
D
IN2
FO
IN
GN
D
OP
OU
T
VO
2(-
)
VO
2(+
)
VO
1(+
)
VO
1(-
)
IN(-
)
OP
SLCIST
EFMIN
RF
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
REF1
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
FD
O
SP
DO
SLD
O
GP
DA
C
CO
NT4
MP
3R
ES
DEFEC
T
FS
EQ
MO
NI1
MO
NI2
MO
NI3
MO
NI4
MO
NI5
VS
S
VD
D
DO
UT
TESTV/*
P
SB
CK
/FG
LD
S
FR
VV
DD
PC
KIS
T
VV
SS
PD
O2
PD
O1
CO
NT2
VS
S
VD
D5
DR
F
DO DI
CL
CE
LIM
IT S
W
CD
_M
UTE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LCHO
LVDD
FSX/16MIN
DRF
FSYNC
CL
DO
DI
3.3V
3.3V
AMUTE
CD_CE
CD_WRQ
CD_RES
D.OUT
MP3_CE
VIN
GND
CONT
VO
NOISE
VS
S
I/O
16
I/O
15
I/O
14
I/O
13
VS
S
I/O
9
I/O
10
I/O
11
I/O
12
NC
LC
AS
UC
AS
OE
A8
A7
A6
A5
A4
VS
S
VC
C
I/O
1
I/O
2
I/O
3
I/O
4
VC
C
I/O
5
I/O
6
I/O
7
I/O
8
NC
NC
WE
RA
S
NC
A0
A1
A2
A3
VC
C
MADRS0
MADRS1
MADRS2
MADRS3
MADRS4
MADRS5
MADRS6
MADRS7
MADRS9
MADRS8
DVDD4
VSS
MADRS10
MADRS11
MADRS12
OEB
CASUB
CASLB
WEB
RASB
DATACK
DA
TA
IN
RES
B
INTB
CE
CL
CM
DIN
CM
DO
UT
OV
F
CN
TO
K
WO
K
VS
S
DV
DD
6
CR
CF
FS
YN
C
STD
AT
STC
K
STR
EQ
VS
S DVDD5
DVDD2 VS
S
MD
ATA
0
MD
ATA
1
MD
ATA
2
MD
ATA
3
MD
ATA
4
MD
ATA
5
MD
ATA
6
MD
ATA
7
DV
DD
3
VS
S
MD
ATA
8
MD
ATA
9
MD
ATA
10
MD
ATA
11
MD
ATA
12
MD
ATA
13
MD
ATA
14
MDATA15
LRSY
ADDATA
ADLRCK
C2FIN
TEST1
CKIN
VSS
CKOUT
TEST2
DVDD1
PW
SBSY
SFSY
SBCK
AVDD
VPRFR
VCOC
VPDO
AVSS
+1.8V REGULATOR
ADBCK
LVSS
*W
RQ
*R
ES
LD
D
SLCO
SB
CK
/CO
NT6
RF AMP,
SLED/SPINDLE
MOTOR DRIVE,
FOCUS/TRACKING
COIL DRIVE
AUTOMATIC
POWER
CONTROL
(LIMIT IN)
(LD)(PD)
(VC)
(FE)
(TE)
(RF)
MP3 DECODER
MEMORY
A-GND
D-GND
P+7.0V
P-GND
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
DIGITAL FILTER,D/A CONVERTER
FOCUS/TRACKING ERROR AMP,
R-CH
L-CH
A1
A2
(Page 32)
(Page 38)
-
CX-JT7
2828
6-7. PRINTED WIRING BOARDS – CHANGER Section – • See page 25 for Circuit Boards Location. :Uses unleaded solder.
C715
C731
C735
C736
R711
R731
R721
R722
R723
R735
R732
R733
R734
Q731
C751
IC712
IC701
CN704
C737
R713
R712
C741
JW70
2
JW70
3
JW70
4JW
705
JW70
6
JW70
7
JW708
JW71
1
CN703
CN702
CN705
R751
C752
CN701
JW71
2
JW70
1
JW709
JW71
0
JW71
3
JW71
4
R701
D701
D711
R702
CN751
IC731
CN731
CN741
CN742
CN721
DRIVER BOARD
1-687-135-
11
(11)
MAIN BOARDCN309B2
MAIN BOARDCN309
(SUFFIX-11) (SUFFIX-13)
B1
1 9
1 9
1 42
S711ROTARY ENCODER
DISC TRAYADDRESS DETECT
21
SW BOARD
1-687-669-
11
(11)
SENSOR BOARD
1-68
7-13
2-
11
(11)
1-687-134-
11
(11)
MOTOR (TB) BOARD
MOTOR (LD) BOARD
1-687-133-
11
(11)
M751(LOADING)
M
21
M
M741(TABLE)
1 3
12
S751OPEN/CLOSE
DETECT
CLOSE
OPEN
A K
E C
E
(Page 34) (Page 35)
-
CX-JT7
2929
6-8. SCHEMATIC DIAGRAM – CHANGER Section – • See page 54 for IC Block Diagrams.
C741
R702 R701
D701C751
C715
R713
R712 R711
D711
CN721
R7
22
R7
21
R7
23
C7
36
C7
35
C7
37
R731R732
C731
R734
R733
R735
CN704
E3
E2
E1
CN703
CN742 CN702
CN741
IC731
CN751 CN705
C752 R751
CN701 (SUFFIX-11)
(SUFFIX-13)
CN731
Q731
M751
M741
S751
IC701
IC712
0.01
100 470
MTZJ-T-775.1A0.01
10016V
22k
4.7k 1k
MTZJ-T-773.6B
2P
4.7
k
4.7
k
4.7
k
0.1
0.1
0.1
10010k
1050V
12k
1k
100
2P
4P
5P 5P
3P
RPI-576
2P 2P
0.1 4.7k
12P
3P
DTC114ESA
BA6956AN
BA6956AN
RN
FR
NF
TM-2
GND
TM-1
SENS-IN
SENS-OUT
GND
TM-1
TM-2
SENS-IN
SENS-OUT
GND
SENS-IN
SENS-OUT
GND
SENS-IN
SENS-OUT
GND GND
OPEN SW OPEN SW
LM-2
LM-1 LM-1
LM-2
GND
E-1
E-2
E-3
M+9V
GND
VC
C
OU
T2
GN
D
VR
EF
OU
T1
VM
FIN
RIN
VC
C
OU
T2
GN
D
VR
EF
OU
T1
VM
FIN
RIN
LM-R
LM-F
TM-R
TM-F
E-1
E-2
E-3
TBL ADDRESS SENS
OPEN SW
(LOADING)
S711
DISC TRAY
ADDRESS DETECT
(TABLE)
TABLE ADDRESS SENSOR
OPEN
CLOSE
OPEN/CLOSE
DETECT
DRIVE
LOADING MOTOR
DRIVE
TABLE MOTOR
LEVEL
SHIFT
D+3.3V
B1
B2(Page 31)
(Page 37)
-
CX-JT7
3030
6-9. SCHEMATIC DIAGRAM – MAIN Board (1/4) (Suffix-11) – • See page 54 for IC Block Diagram.
D102
R101
R102
C103
R304 R303
C3
51R302
R301
C102
C101
C301
R317
C3
21
C3
23
C327
C3
31
C3
33
R3
19
C325C319
R3
30
C3
20
C3
24
C337
R323
C3
32
C3
34
C3
28
C3
26
R326
C353C303
C318
R318
C304
C357
C311C312
C310
C356
R397
C355
R3
96
R3
95
Q312
R316
C362
JR322
JR3
11
JR310
R328
R322
R320
Q311 Q310
JR313JR312
R321 JR325
C361
R365C393
JK302
R327
C365
C309
CN101
IC301
C302
C366
JR300 C300
C317
R325R324
C313
C411
C314C412
C3
52
C354
C342 R354
R356R355
R380
R358R399 R398
D317
10EDB40-TB3
10k
10k
100 16V
22k 22k
10
00
p
4.7k
4.7k
4.750V
4.750V
10 50V
2.2k
0.0
22
0.0
22
0.0027
0.2
2
0.2
2
1k
0.0470.047
10
k
0.0
22
0.0
22
1050V
1k0.2
2
0.2
2
0.0
02
7
0.0
47
10k
470p10010V
1050V
2.2k
4.750V
100010V
10 50V10
50V
1050V
470p
1k
470p
2.2
k
2.2
k2SA1235F
10k
220p
0
00
33k
15k
1k
2SD1306 2SD1306
00
15k 0
220p
1M0.4750V
2P
4.7k
220p
1050V
M61529FP
10 50V
22
0p
0 1
1050V
10k1k
1016V
4.735V
1016V
4.735V
47
0p
1000p
0.1 47k
2.2k2.2k
470k
22k5.6k 5.6k
1SS355
A1
A2
A4
A5
A6
A7
B1
B2
B3
B4
B5
B6
B7
B8
B9
B1
0
C2
C1
C3
C4
C5
CD-MUTE
CLK
CE
TUNED
ST
TUMUTE
DI
VA
CS
/ST
R
DO
DI
MIC-SIG
MCLK
-VFL
CLK
DI
DO
CE
TUNED
ST
TUNER-L
GND
TUNER-R
TU-MUTE
VM+9V
CL
OC
K
GN
D
SW
OU
T
OU
T2
BB
_B
2
BB
_A
2
VO
LIN
2
SU
R2
/DP
L2
SU
R1
/DP
L1
CD
-L
TU
NE
R-L
TA
PE
-L
MD
-L
GA
ME-L
RE
CB
-2
TM
I2
TM
O2
TC
A2
TC
B2
TC
C2
TO
UT
2
RE
F
MIC
CD
-R
TU
NE
R-R
TA
PE-R
MD
-R
GA
ME-R
RE
CB
-1
TM
I1
TM
O1
TC
A1
TC
B1
TC
C1
TO
UT
1
VO
LIN
1
BB
-A1
BB
-B1
OU
T1
SA
OU
T
VC
C
DA
TA
(1/4)
MUTING
CONTROL
SWITCH
MUTINGMUTING
INPUT SELECT SWITCH,
TONE CONTROL,
ELECTRICAL VOLUME,
BASS BOOST AMP
11P
L
R
MD(VIDEO)
IN
THE ASSEMBLED
BLOCK
SUPPLIED WITH
TUNER UNIT(COAXIAL)
FM 75Ω
AM
LOOP
ANTENNA
(Page 32)
(Page 33)
(Page 31)
-
CX-JT7
3131
6-10. SCHEMATIC DIAGRAM – MAIN Board (2/4) (Suffix-11) – • See page 54 for IC Block Diagram. • See page 54 for Waveforms.
R233
R425
R424
CN309
C402
C202
C201
C203
C204
C237
C244
C232
C266
C248
C267
R267C269R271
C273 C247
C249
C254R284C253
R278
R270R282
R215
C260
C258R287R288 C259
R235
R286
R232R234
C261
C285 R285
Q228
C240 R253R246C221
R245R273
R269
R241 R242
D206
R251
R353
R352
R455
R406
R426
R466
D305
C392 C391 C390
R485
R430
R368
IC310
R272
R400 R401 R402 R404 R405
R412 R413
C401
R486
R418R417R416R415R419 R414
R407 R408 R409 R410
D306
R216
C250
C272
CN203
HP1
HPRE1
C234
R226 C226
C286
C233
C225
R225
C242C241C223
Q223
Q221 Q218
Q225
Q222
R260
IC201
GA1
JR309
JR308
JR307
JR306
JR305
JR304
JR303
R307
R231
R266
C268
IC309
JR316
Q220Q219
L201
R268
C450
R265
R252
C239
R283
D205
R220
CN202
22k
22k
22k
12P
0.1
1000p
1000p
1000p
1000p
1 50V
47 16V
4716V
0.01
2.250V
0.01
4.7k150V10k
1 50V 2.250V
2.250V
4.750V10k
10016V
22k
10k100
4.7k
0.47 50V
4.750V10k10k
2225V
10k
10k
2.2k22k
0.4750V
2200p 10k
2SB1116
1050V 10k
47k4716V
10k10k
10k
4.7k 4.7k
1SS355
4.7
11k
11k
11k
22k
22k
22k
1SS355
100p 100p 100p
100
10k
100
BU2099FV
10k
10k 10k 10k 10k 10k
10k 10k
0.1
100
10k10k10k10k10k 10k
10k 10k 10k 10k
1SS355
4.7k
2.250V
1 50V
3P
1000p
10k 2200p
2200p
1000p
2200p
10k
0.00470.00470.022100V
2SC2001
2SC3052F 2SC3052F
2SA1235F
2SC3052F
220
HA12237F
0
0
0
0
0
0
0
100
2.2k
4.7k
150V
BU2099FV
0
2SC3052F2SC3052F
4.7k
1050V
4.7k
22k
0.015
10k
1SS355
10k
8P
A1
A2
A4
A5
A6
A7
E1
E2
E3
19
20
21
22
23
24
18
SP
-F
LIN
K
CD-EN
TUMUTE
S-OUT
CLK
LC
K
TBL-SENSE
V-BASS
PB
-EQ
(R)
TA
I(R
)
EQ
OU
T(R
)
PB
-OU
T(R
)
RE
C-I
N(R
)
AL
C(R
)
REC-OUT(R)
VCC
ALC-DET
GND
IREF
TEST
AL
C(L
)
RE
C-I
N(L
)
PB
-OU
T(L
)
TA
I(L
)
EQ
OU
T(L
)
PB
-EQ
(L)
PB-NF2(L)
PB-NF1(L)
AIN(L)
RIP
BIN(L)
REC-RETURN
GND
BIN(R)
AIN(R)
PB-NF1(R)
(R)
PB-NF2
GND
LM-R
LM-F
TM-R
TM-F
TBL ADDRESS SENS
D+3.3V
M+9V
OPEN SW
SO
VDDVSS
DATA
CLOCK
LCK
SO
VDD
VSS
DATA
CLOCK
LCK
(2/4)(PB)
(DECK-A)
ERASE
(DECK-B)
(REC/PB/ERASE)
L-CH
R-CH
R-CH
L-CH
BIAS OSC
BIAS OSC
MUTING
MUTING MUTING
MUTING
SWITCH
REC ON/OFF
Q222,225SWITCH
REC BIAS
NC
NC
REC-OUT
(L)
RECMUTE-ON /OFF
MUTE-ON/OFF
A/B
NOR/HI
ALC-ON/OFF
NC
NC
NC
REC/PB EQ AMP
(CHASSIS)
E-1
E-2
E-3
NC
NC
NC
NC
CTRL3CTRL2
CTRL1
OE
NC
BB CTRL1
BB CTRL2
BB CTRL4
BB CTRL3
BASS BOOST CONTROLLER
MULTI CONTROLLER
NC
OE
REC
BIAS
A/B
PB MUTE
REC MUTE
REAR SP ON
/OFF
FRONT SP ON
TM-L (CD)
TM-R (CD)
LM-L (CD)
LM-R (CD)
TUNER
MUTE
/OFF
DECK A/B SELECT SWITCH,
I-BASS
(Page 30)
(Page 33)
(Page 29)
-
CX-JT7
3232
6-11. SCHEMATIC DIAGRAM – MAIN Board (3/4) (Suffix-11) – • See page 54 for IC Block Diagram.
The components identified by mark 0 or dottedline with mark 0 are critical for safety.Replace only with part number specified.
CN311
CN312
CN306
CN310
C385
R3
35
R493 C491C315
R492
R491
R494 C492
C384
R495
R300
C341C367
C396
R421
C400
R333
R334
R479 R337 R467
Q314
R362
R361
R366
R367
R480
R363
C330C316R347
C439
C329
R364
C340R338
R339
D311
C3
70
C369
JR333 C386
Q327
Q328
R392
R315 Q372
C379 C377
R359
R371
R372
R391
D372 D371
D374
C398
R461R460
D312
Q373
R433
R434
Q491
Q492
Q304
Q323
IC303
JR336
CN303
M731
R470
R393
R370
C440
JR339
JR341
C383
C382
R332
R468
JR337
Q316Q315
R394
Q317
Q318
Q319
Q320
R336
R478
R331
R403
R375
R340
9P
19P
13P
5P
0.033 56
k
100k 0.0154.750V
220k
220k
220k 150V
0.033
22k
4.7k
4716V0.22 0
.22
10k
2225V
10k
8.2k
47k 1.5k 1.5k
2SK2158
22k
5.6k
270
4.7k
10k
22k
4.750V
4.750V4.7k
4.7 100V
4.750V
100k
4716V4.7k
1k
1SS355
10
50
V
10
50
V
0 4725V
2SA1235F
2SA953K
220
10k 2SC3052F
4725V
4.750V
470k
4.7k
4.7k
47k
1SS355 1SS355
1SS355
1050V
2.2k2.2k
UDZSTE-1713B
2SC2001LK
6802W
6802W
2SC3052F
2SK2158
2SA953K
2SC3052
NJM2156
0
3P3.3k
10k
10k
4.7100V
0
0
3300p
3300p
47k
82k
0
2SK21582SK2158
10
2SK2158
2SK2158
2SK2158
2SK2158
27k
2.2k
3.3k
820
4.7k
5.6k
B1
B2
B3
B4
B5
B6
B7
B8
B9
B1
0
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
ZZ1
ZZ2
ZZ3
ZZ4
ZZ5
ZZ6
ZZ7
ZZ8
CD-MUTE
V-BASS
18 19 20
HP
21
22
23
24
SP-F
LINK
HP CTL
D GND
R-OUT
HP-GND
L-OUT
FAN+
FAN-
FAN+
L-OUT
SP-GND
R-OUT
VM(AC)
VM(AC)
VCC
LINK/MATRIX
P-GND
L-CH
A-GND
PW-GND
A-GND
RELAY B+
P+7.0V
CD DRF
GN
D
GO
UT
GIN
VR
EF
OU
TB
LO
UT
B
LIN
B
HO
UT
B
HIN
B
INB
HO
UT
A
HIN
A
INA
LIN
A
LO
UT
A
OU
TA
BB
E
LP
OU
T
LP
IN
V+
(3/4)
SWITCH
FEED BACK
BASS BOOST
CONTROL
Q327,328,372,373
FAN MOTOR ON/OFF SWITCH
ON/OFF
SPEAKER
BASS BOOST
CONTROL
Q317-320
BASS BOOST ON/OFF SWITCH
BASS BOOST
ENHANCER
Q314-316
FERQUENCY
CONTROL
UNREG VM
IN-L
IN-R
(FAN)
D-GND
AMUTE
D.OUT
3.3V
3.3V
CD_RES
DI
DO
CL
MP3_CE
FSYNC
CD_WRQ
DRF
CD_CE
LC78646 CE
LC78646 WRQ
LC78684 SYNC
LC78646/LC78684 CLK
LC78646/LC78684 DO
LC78646/LC78684 DI
LC78646 RESET
R-CH
LC78684 CE(MP3)
RELAY
DRIVE
(Page 30)
(Page 44)
(Page 41)
(Page 27)
(Page 43)
(Page 33)
-
CX-JT7
3333
6-12. SCHEMATIC DIAGRAM – MAIN Board (4/4) (Suffix-11) –
CN304
D315 D313
CN307
R346
R387C397
R386
R388C345
C372 D3
64
R4
31
R379
D314
R482 R481
C399C419C418
D321 D322
C375C374C373
D301 D302
C380 C381
D304D303
C420 C421
R378
D319 D320
R483
R314
C363
IC304
R313
R432
C339
C364
D307
C371
JR334
R487
R488
IC305 IC306 IC308 IC313
C417
D308
Q331
Q330
D316
Q324
R348 R384
JR321
JR328
JR326
JR317
R309
Q301
Q302
R310
R427 R428
R484
JR302
31P
10EDB40-TB3 10EDB40-TB3
13P
22k
12k10010V
10k
1k10016V
1050V
1S
S3
55
15
0k
2.2k
10EDB40-TB3
4.7k 4.7k
47016V0.010.01
10EDB40-TB3 10EDB40-TB3
220025V0.010.01
10EDB40-TB3 10EDB40-TB3
47016V
4716V
10EDB40-TB310EDB40-TB3
220025V
22016V
10k
10EDB40-TB3 10EDB40-TB3
1k
100k
1050V
NJM4565M
100k
100
22016V
1050V
1SS355
4716V
0
0
0
TA7809S µPC3504HF TA7809S TA7810S
100010V
0
2SA1235F
2SC3052F
10EDB40-TB3
2SC3052F
0 1k
0
0
0
0
0
2SA1980G
2SC3052F
0
0 0
10k
0
C2
C1
C3
C4
C5
E1
E2
E3
F1
F2
F3
F4
F5
F6
F7
F8
F9
F10
MIC-S
MIC-SIG
FIL2
FIL1
-VFL
EVER+10V
MIC+10V
+4V
ST
TUNED
CE
DO
DI
CLK
MCLK
LCK
TBL-SENSE
CD-EN
S-MUTE
VACS/STR
DECK+9V
HOLD
O-POWER
S-OUT
MIC10V
HP
MIC-S
O-POWER
HOLD
S-MUTE
FIL1
FIL2
EVER+10V
-VFL
O-P
OW
ER
DE
CK
+9
V
O-P
OW
ER
+4
V
SYSTEM MUTE
DC-DET
VM+10V
HOLD
SW OUT
-VFL
VSTBY
FIL-2
FIL-1
SW LIMIT
P-0N
D-GND
-VFL
EVER 10V
MIC 10V
4V(SW)
BU1924 CLK
BU1924 DATA
TUNER STEREO
LC72121 CE
LC72121 DI
M61529 CLK
BU2099FB LCK
POWER RELAY
PROTECTOR (HOLDER)
STREAM IN(VACS)
SYSTEM MUTE
S-OUT
MIC GND
(4/4)
VF1
VF2
TUNER TUNED
LC72121/M61529/BU2099FV DO
LC72121/BU2099FV CLK
CD NUMBER SENS
BU UP DOWN/CD OPEN CLOSE
NC
TUNER S-METER
DECK 9V
MIC SIG
HP
A-GND
SW ON/OFF SENS
O-POWER
I OG
I OG
I OG
I OG
+9V REGULATOR +9V REGULATOR +10V REGULATOR+4V REGULATOR
Q330,331
POWER ON/OFF
RELAY DRIVE
Q301,302
B+ SWITCH
CENTER
VOLTAGE
GENERATOR
BUFFER
VCC
GND
(Page 32)
(Page 30) (Page 31)
(Page 43)
(Page 44)
-
CX-JT7
3434
6-13. PRINTED WIRING BOARD – MAIN Board (Suffix-11) – • See page 25 for Circuit Boards Location. :Uses unleaded solder.
B
R242
R251
R253
C225
C226
R225
R226
R220
Q221Q219
R266
R268
IC201
R252
C286
R234
R288
R287
R283
R284R2
78R2
35
R216
R270
R286
D205
Q225
R273
R245
R269
R232
R260
R271
R215
R265
R285
R267
R241
R282
C285
C201
C202
C203
C204
R346
Q218
R384
R348
JR30
0
C300
R233
D206
R482
R246
Q330
R431
R483
R481
R484
R378
R379D307
Q302
Q331
JR317
JR328
C390
R419
R412
JR32
1
R368
R367
R417
JR30
6
JR30
7
R416
R415
JR30
8R4
14
JR30
9
JR31
6
R485
C402
R307 C392
C391 R
430
C401
R410
R409
R408
R405
JR30
3
JR30
5
R418
R486
JR337
JR304
IC309
R401
R400
R402R404
D305
R436
R413
R407
JR326
R366
R339
R340
R332
R468
R333
R334
R479
R467
R337 R
375
R380
R336
R331
R403
R478
R353
R358
R397
Q312
R316
R300 R399
R395
R398
R396
R335Q323
R495
Q491
R494 C491
R493
IC303R34
7
R338
R370
R466JR339
R491
R455
R352
R406
R424
R425
Q310
C342
D306R42
6
R356
JR33
4
C366
C365
R492
R327 IC301
R330
C319
C353
JR31
1
JR31
0
R325
R319JR31
3JR31
2
C356
C361
C355
R321
JR32
2
C354
R101R102
D317
R323
R324
D364
R428
R488
R427
R487
JR302
JR336
R421
R391
R359Q372
D372
D371
R362
R361D311
R363
R372
D374
R371
R460
R461
R386
Q324
R388
R314
R387
R326
R318
C362
R328
R322
R320
R313
R432
R365
R303
R301
R304
R310
R309
C351C352
IC304
D312
R364
R480
R470
R393
Q327R315
R392
R394
R317
JR333
R354
Q311 R355JR341
R231
Q222
IC310
Q220
R272
JR325
R302
D308
JW310
JW39
5
JW393
JW390
JW400
JW387JW389
JW26
4
JW25
3
JW36
0
JW37
0
JW300
JW320
JW386
JW43
0JW38
0
JW397 JW410
JW266
JW396
JW394
JW42
0
JW315
JW316
JW312
JW313
JW314
JW32
2
JW32
1
JW31
9
JW32
4
JW32
5
JW32
6
JW32
3
JW36
5
JW32
7
JW363
JW362
JW382
JW384JW340
JW383
JW26
7
JW222
JW268
JW359
JW361
JW37
1
JW373
JW372
JW273
JW49
4
JW217
JW210
JW209
JW216
JW219
JW231 JW350
JW398
JW392
JW46
0
JW330
JW47
0
JW25
1
JW232
JW223
JW225
JW45
6
JW309
JW303
JW302
JW301
JW30
7
JW30
5
JW30
4JW30
8
JW344
JW345
JW342
JW10
8
JW10
6
JW10
7
JW33
3
JW33
2
JW33
1
JW328
JW32
9
JW103
JW102
JW11
2
JW10
9
JW113JW449
JW452
JW448
JW269
JW357
JW356
JW33
5
JW354
JW355
JW358
JW265
JW46
3
JW338
JW337
JW341
JW347JW346
1
JW462
JW499
JW45
7JW
479
JW48
1
JW466
JW467
JW468
JW482
JW471
JW473
JW472
JW476
JW475
JW474
JW469
JW44
5JW
443
JW263
JW478
JW415
JW455
JW454
JW453
JW45
8
JW44
6
JW44
4
JW45
0
JW459
JW461
JW440
JW44
1
JW42
6
JW42
8
JW42
7
JW43
4
JW43
8
JW43
9
JW42
9
JW27
5
JW43
2
JW43
3
JW43
7
JW44
2
JW411
JW407
JW408
JW409
JW404
JW270
JW27
2
JW271
JW405
JW406
JW279
JW422
JW424
JW423
JW43
6
JW274
JW417
JW418
JW416
JW419
JW421
JW234
JW238
JW235
JW22
6
JW22
7
JW23
6
JW239
JW20
5
JW20
0
JW23
7
JW213JW21
4
JW206
JW212
JW211
JW491
JW488
JW487
JW483
JW49
3
JW489
JW492
JW207
JW490
JW276
JW447JW486
JW485
JW484
JW20
2
JW203
JW20
1
JW20
4
JW27
8
JW498
JW495
JW496
JW497
JW435
GA1
Q328
IC313
Q301C381
IC306
D321
D319
C420
C375
C374
C418 C419
C373
CN307CN306
C421 D322
D320
C377
C379
C412
C318
C320
C339
C393
C337
C324
C326
C328
C314
C301 C302
C334
C332
CN303
D316
C397
C363
C364
C345
C304
C309
C411
C417
C399
IC308C371
C380
C372
IC30
5
D304
D303D301
D302
C398
Q373
Q304
C321
C317
C325
C101
C370
C303
C327C323
C102
CN312
C357
C333C331
CN101
D102
C311
C312
C313
CN309
Q492
C492
C340
C341
C384
D313
D314
C450
D315
C369
C396
C382
C383
C315
C316
C329 C330
C400
C385
C367
CN304
Q315Q316
Q314Q318Q319Q320
CN311
Q317
CLP3
C273
Q223Q228
C250
C260
C248
C240
C247
C221
C249
C258
C272
C244
C253
C269
C268
C239
C241
C267
C266
CN310
CN203
C233
C242
L201
CN202
C232C2
34C254
C259
C223
C103C103
W1W1
C237
JW385
JW36
8
C310
JW218 JW221
JW220
JW224
C261
JW25
2
R434R433
C440
C439
C386
JW348
12
JW277
1 20
40 21
10 11
31 30
MAIN BOARD
1-688-080- 11
1
2 10
11
TUNER UNITSUPPLIED WITH THEASSEMBLED BLOCK
FM 75Ω(COAXIAL)
ANTENNA
AMLOOP
M731(FAN)M
1 3
R
L
MD (VIDEO)IN
JK302
E
E
E
E
131
(CHASSIS)
131
E
31313131
EE