SP 3000P RepairManual
76
R-SP3000P-1-0601-01 ISSUED............... OCT. 2005 REVISED ............ JAN. 2006 REPAIR MANUAL SP-3000P SPECULAR MICROSCOPE TOPCON CORPORATION
description
SP 3000P RepairManual
Transcript of SP 3000P RepairManual
R-SP3000P-1-0601-01
ISSUED............... OCT. 2005
REVISED ............ JAN. 2006REPAIR MANUAL
SP-3000PSPECULAR MICROSCOPE
TOPCON CORPORATION
R-SP3000P-1-0601-01
CONTENTS
Page1. INTRODUCTION ..................................................................................................................................1
1-1 Features of Product ..................................................................................................................................11-2 Specifications and Performance of Product.............................................................................................11-3 Target User of This Manual.....................................................................................................................11-4 How to Use This Manual .........................................................................................................................21-5 Cautions ...................................................................................................................................................2
2. PRODUCT OUTLINE .........................................................................................................................32-1 Nomenclature...........................................................................................................................................32-2 Optical System (Arrangement) ................................................................................................................52-3 Electric System ........................................................................................................................................62-4 Principles .................................................................................................................................................82-5 PCB Arrangement..................................................................................................................................10
3. REPAIR WORK ..................................................................................................................................163-1 FACTORY MENU Program .................................................................................................................163-2 Disassembly and Assembly Procedures ................................................................................................243-3 Troubleshooting .....................................................................................................................................343-4 Assembly and Adjustment Procedures ..................................................................................................44
4. TOOL LIST............................................................................................................................................724-1 Special Repair Tools..............................................................................................................................724-2 General Repair Tools .............................................................................................................................73
－ 1－R-SP3000P-1-0601-01
1. INTRODUCTION
1-1 Features of Product(1) Photography of the corneal endothelium and the measurement of the corneal thickness can be performed
at the same time.(2) The auto-alignment function ensures quick and easy photography and measurement.(3) Simplified cell analysis enables the user to easily understand the rough value of the cell density.
1-2 Specifications and Performance of Product
* Subject to change in specifications and appearance without advance notice for future improvement.
1-3 Target User of This ManualSP-3000P is an optical precision inspection instrument to be used for ophthalmology and internal medicine.Only a specialist for assembly and adjustment of medical machines can repair this instrument.For others except the specialist, it is recommended to take the TOPCON repair technique training course.
Field of coverage 0.25 × 0.5mm
Photography/measuring point Corneal center and 4 places in the peripheral area
Photography magnification 165× on the instrument monitor
Corneal thickness measurement repeatability ± 0.01mm
Alignment To be displayed on the monitor screen.
Monitor 5.6 type (color character display)
Photography mode AUTO/MANUAL/SEMI-AUTO switching
Flash level HIGH/LOW switching
Photography/measurement result display To be displayed on the monitor screen.
Image memory 5 displays for each of right and left eyes
Working distance 25mm
Power saving function Power save method
External output terminal VIDEO OUT, CONTROL, RS-232C OUT and USB2.0
External input terminal RS-232C IN
Operating temperature 10 ~ 40°C
Instrument longitudinal mobility 40mm
Instrument lateral mobility 92mm
Measuring head vertical mobility 28mm
Chinrest height adjustment quantity 60mm
Source voltage AC100-240V, 50Hz/60Hz
Power input 190VA
Dimensions 274mm (W) × 485mm (D) × 410mm (H)
Weight 22kg
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1-4 How to Use This ManualWhen inspecting, adjusting or repairing the SP-3000P microscope for any problem, use this manual accordingto the flow chart below.
1-5 Cautions• Refer to the illustrations of the parts list for the disassembly and assembly of the unit which is not
described in this manual. Refer to the instruction manual for replacing the consumables.• If the optical system is soiled when repairing, photographing is adversely affected. Be careful not to touch
or soil the optical system when disassembling, assembling or adjusting.• Order the repair parts by using the service parts list.
YES
NO
NO
OK
Operation procedureManual
Applicable item
Initial inspection Trouble
Inspection
Trouble locationcheck
Searching for thecause
Repair operations
Inspection
Normal
End
Page
Disassembly and assemblyprocedures
Troubleshooting
Disassembly and assemblyproceduresAssembly and adjustmentprocedures
FACTORY MENU program
SP-3000P basic materials
FACTORY MENU program
Photography principles
P. 16 ~ 23
P. 24 ~ 33
P. 34 ~ 43
P. 24 ~ 33
P. 44 ~ 71
P. 16 ~ 23
P. 8 ~ 9
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2. PRODUCT OUTLINE
2-1 Nomenclature
No. Name Function
Lamp house cover Remove it when replacing the xenon lamp.
Color video monitor On this monitor, the aligned anterior eye segment image, the alignedcorneal endothelium image and the photography result are displayed.
Photography switch Press this switch after alignment while observing the corneal endothe-lium, and it is possible to take a picture. Press this switch when thememory pictures are displayed, and the memory pictures will beswitched by turns. This switch is also available for resetting when thepower saving function is working.
Joystick Incline this, and alignment in the longitudinal and lateral directions ispossible. Turn this, and alignment in the vertical direction is possible.
Locking knob This is used to fix the instrument in transportation.
RS-232C input terminal This is used to connect the instrument to a bar code reader, etc.
VIDEO OUT output termi-nal
This is used to connect the instrument to an image processing unitadopting the EIA (NTSC) signal system.
USB output terminal This is used to connect the instrument to a personal computer (PC), etc.
RS-232C output terminal This is used to connect the instrument to a personal computer (PC), etc.
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2
3
4
5
6 7 8
9
1
2
3
4
5
6
7
8
9
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No. Name Function
Forehead rest
Photography window
Vertical positioning mark This is standard for adjusting the height of the patient's eye.
Chinrest
Power cord .
Fuse holder
Mouse This is used for the simplified cell analysis, the fixation target switch-ing, etc.
Power switch
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11
12
13
1415
16
17
10
11
12
13
14
15
16
17
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2-2 Optical System (Arrangement)
No. Name Function
XY LED Confirms the alignment in the XY direction on the sensor.
Center fixation LED Fixes the patient's eye as a target.
XY alignment sensor Detects the alignment range in the XY direction.
Z LED Used as a light source for observation.
Observation slit Fixes the width of the observed image.
Photographing slit Fixes the width of the photographed image.
Xenon Used as a light source for photography.
Photography system condenser lens Forms the endothelium image on the mask position.
Z alignment sensor Detects the alignment range in the Z direction.
Mask lens The mask is displayed on the monitor.
Knife edge Shields the clear reflected image.
Photography system relay lens Forms the endothelium image on the CCD camera.
CCD camera Displays an image on the monitor.
Anterior eye segment illumination LED Illuminates the patient's eye.
Peripheral fixation LED Fixes the patient's eye.
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
6R-SP3000P-1-0601-01
2-3 Electric System
2-3-1 Wiring diagram
XY SENSORPCB UNIT
XY SENSOR CABLE 2 UNIT
Z SENSOR CABLE 2 UNIT
Z SENSORPCB UNIT
XY SENSOR CABLE 1 UNIT
XY ANALOG PCB UNIT
XY
LED
PC
B U
NIT
Z LE
DP
CB
UN
IT
CE
NTE
R F
IXAT
ION
LE
DP
CB
UN
IT
LATE
RA
L FI
XAT
ION
LE
DP
CB
UN
IT
ANTE
RIOR
EYE
SEG
MEN
TIL
LUM
INAT
ION
LED
PCB
UNI
T
VER
TIC
AL F
IXAT
ION
LED
PC
B U
NIT
SO
LEN
OID
UN
IT
LAM
P H
OU
SE
CO
VE
RS
EN
SO
R U
NIT
X A
XIS
MO
TOR
CA
BLE
UN
ITS
TEP
PIN
G M
OTO
RFO
R X
AX
IS
Y A
XIS
MO
TOR
UN
ITFO
R Y
AX
IS
STE
PP
ING
MO
TOR
FOR
Z A
XIS
X AX
IS Z
ERO
DET
ECTI
ON
SENS
OR
UNIT
Y A
XIS
UP
PE
R L
IMIT
DE
TEC
TIO
NS
EN
SO
R U
NIT
Y A
XIS
LO
WE
R L
IMIT
DE
TEC
TIO
NS
EN
SO
R U
NIT
Z AX
IS Z
ERO
DET
ECTI
ON
SENS
OR
UNIT
XENO
N UN
IT
Z A
XIS
MO
TOR
CA
BLE
UN
IT
CAMERA DATA CABLE UNIT
CAMERA POWER CABLE UNIT
XENON CABLE UNIT
LCD YC CABLE
LCD POWER CABLE
CPU-I/OCABLE 2 UNIT I/O PCB UNIT
CPU-I/OCABLE 1 UNIT
POWER CORD IN JAPAN
Z SENSOR CABLE 1 UNIT
CONTROL SW CABLE UNIT
CONTROL SWPCB UNIT
CPU PCB UNIT
R/L
SE
NS
OR
UN
IT
VID
EO
OU
TC
AB
LE U
NIT
EX
TER
NA
L S
YS
TEM
CA
BLE
UN
IT
RS
-232
C IN
CA
BLE
UN
IT
RS
-232
C O
UT
CA
BLE
UN
IT
US
B M
OU
SE
CA
BLE
UN
IT
US
B I/
FC
AB
LE U
NIT
XE
PO
WE
R C
AB
LE U
NIT
DC
PO
WE
R C
AB
LE U
NIT
CH
AR
GIN
G C
ON
TRO
L C
AB
LE U
NIT
PD
SE
NS
OR
UN
IT
CO
ND
EN
SE
R U
NIT
DIS
CH
AR
GE
RE
SIS
TAN
CE
UN
IT
CHIN
REST
CON
TROL
PCB
UNIT
CH
INR
ES
TC
AB
LE U
NIT
POWER SUPPLY UNIT
3P SW CABLE UNIT
SWITCHING POWER SUPPLYEARTH CABLE UNIT
－ 7－R-SP3000P-1-0601-01
2-3-2 Block diagram
Base unit
Interface control unit
Chinrest unit
Chinrestmotor
Power unit
Commercial power supply
Switching power supply RS-232C OUT connector
Photography head unit
RS-232C IN connector USB I/F connector
LCD monitor
Automatic drive motor
Solenoid
CCD camera
Sensor unit
LED control unit
Xenon flashing control unit
Xenon tube
USB mouse connector
Video OUT connector
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2-4 Principles
2-4-1 Photography principlesSlit light which enters the cornea gets through it and reaches the aqueous humor. Part of the light is reflectedon the front of the cornea in the boundary whose refraction index is different.When the light reflected on the backside of the cornea is magnified, it can be observed as an image, becausethe cells on the backside of the cornea are uneven.
Arrange the illumination system (I) and the photography system (P) so that the normal line which is perpen-dicular to the cornea may divide into I and P equally. Consequently the light is reflected on the backside ofthe cornea. Move the instrument while keeping the angles of I and P uniform so that the normal line maydivide into I and P equally. So the front reflection of the cornea (S'-S) and the backside reflection of the cor-nea (endothelium cells R'-R) can be observed.
2-4-2 Corneal thickness measurement principlesSlit light is slantingly emitted for the patient's cornea and the light reflected by the front and backside of thecornea is brought in by the line sensor.The corneal thickness is calculated by using the interval (L) between the front reflection image and backsidereflection image on the line sensor.
Cornea
P
I
S'
S
R
R'
Illuminationsystem (I)
Photographysystem (P)
22.5°
22.5°
α
Backside of cornea Front of cornea
Reflected
Backside reflection
CornealSlit light
Line sensor
Front reflection
L
light
thickness
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2-4-3 Photographed position detection functionXY detection function: This function focuses the spot XY LED ray reflected on the cornea on XY sensor to
detect the XY shift and direction.
Z detection function : Slit light as illumination light is brought into the cornea. As mentioned above, whenthe spot XY LED ray is brought into the XY sensor, the light is turned on and thefront reflection (S'-S) and the backside reflection (endothelium cells R'-R) are done.Electrically the Z sensor detects the position of the front reflection.Automatic alignment is done according to the detection results of the XY detectionand Z detection. When the XY alignment and Z alignment are in the OK range, pho-tographing is done automatically.
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2-5 PCB Arrangement
2-5-1 4190371000 CPU PCB
VIDEO OUT
CC
D C
AM
ER
A D
ATA
XY
AN
AL
OG
PC
B
Z S
EN
SOR
PC
B
Z S
EN
SO
R P
CB
EXTERNAL
CONTROL SW
USB MOUSE
R/L
SE
NSO
R
J401
J501
J502
SYSTEMD-sub
IO PCBJ204
IO PCBJ203
PCBJ702
USB I/F
RS-
232C
OU
T
RS-
232C
IN
Din
D-s
ub
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2-5-2 4190372000 I/O PCB
Y A
XIS
MO
TO
R
Z A
XIS
MO
TO
R
X A
XIS
MO
TO
R
X AXIS ZERODETECTIONSENSORZ AXIS ZERODETECTIONSENSORCCD CAMERAPOWER SUPPLY
LCD POWERSUPPLY
PD SENSOR
CHINRESTCNTROL PCBJ601
SWITCHINGPOWER SUPPLYCN6
SWITCHINGPOWER SUPPLYCN3
SWITCHINGPOWER SUPPLYCN4
CO
ND
EN
SE
R U
NIT
XE
NO
N U
NIT
CH
AR
GE
RE
SIS
TAN
CE
UN
IT
CPU PCBJ101
CPU PCBJ102
Y AXISLOWER LIMITDETECTIONSENSOR
Y AXISUPPER LIMITDETECTIONSENSOR
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2-5-3 4190374000 XY ANALOG PCB
XY
SE
NSO
R P
CB
SOLENOID UNIT
CENTER FIXATION LED
VERTICAL FIXATION LED
LATERAL FIXATION LED
ANTERIOR EYE SEGMENT
LAMP HOUSE COVER
XY LED PCB
Z LED PCB
ILLUMINATION LED PCB
SENSOR
CPU PCBJ105
J701
PCB
PCB
PCB
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2-5-4 4190375100 XY SENSOR PCB
2-5-5 4190375500 Z SENSOR PCB
XY ANALOG PCBJ402
CPU
PC
B
CPU
PC
B
J106
J107
－ 14－R-SP3000P-1-0601-01
2-5-6 4190366000 SWITCHING POWER SUPPLY
2-5-7 4190368000 CHINREST CONTROL PCB
3P SWITCH
I/O PCBJ202
I/O PCBJ218
I/O PCBJ201
I/O
PC
BJ2
16
CH
INR
ES
T D
CM
OT
OR
－ 15－R-SP3000P-1-0601-01
2-5-8 4190381000 CONTROL SW PCB
CPU
PC
B
JOYSTICK SW UNIT
J110
－ 16－R-SP3000P-1-0601-01
3. REPAIR WORK
3-1 FACTORY MENU ProgramCarry out the following check to find a trouble early and to adjust the instrument.
Program name Contents
FACTORY MENU GROUP-A
1. E2PROM INITIALIZE Writes the initial values for the correction values in EEPORM.
2. CCD CENTER ADJUST Stores the reference position to perform XY alignment with CCD inEEPROM.
3. ANTERIOR LED SETTING -----
4. FLASH ROM CHECK Performs the memory check for FLASH ROM. (Sum check)
5. FIXATION LED TEST Checks if the lighting position displayed on the screen is fit to theLED mounting position.
6. XY LED ADJUST Adjusts the XY LED luminance level.• Within the luminance level value range: “OK” is displayed.• Out of the luminance level value range: “NG” is displayed.
7. IMAGEnet SLIT MEMORY Sets a test eye and stores the mask slit inside dimension.• Initial value: 0.1985
FACTORY MENU GROUP-B
1. XY SENSOR ADJUST Sets a test eye and checks the XY alignment circuit.• Within the range: “OK” is displayed. Circle is displayed.• Out of the range : “NG” is displayed. Circle is displayed.• Nothing : “NOTHING” is displayed. Circle disappears.
2. Z SENSOR ADJUSTMENT Sets a test and checks the Z alignment circuit.• Within the range: “OK” is displayed. Bar is displayed.• Out of the range : “NG” is displayed. Bar is displayed.• Nothing : “NOTHING” is displayed. Bar disappears.
3. PACHOMETRY ADJUST Sets the correction value of the corneal thickness.• Setting the correction value is successful : “OK” is displayed.• Setting the correction value is failure : “NG” is displayed.
4. OPTICAL ADJUST The displayed data used for optical adjustment
5. OPTICAL CHECK The displayed data used for optical function check
FACTORY MENU GROUP-C
1. E2PROM CHECK Performs the memory check for E2PROM.
2. SWITCH CHECK Checks the switches.• “ON” or “OFF” is displayed.
3. LED CHECK Checks each LED by blinking.• Each LED blinks every 2 seconds.
4. XENON CHECK Checks the flashing of the xenon lamp.• The xenon lamp flashes every 4 seconds.
5. POWER OFF CHECK Checks the automatic power off function.• Power ON: 2 seconds/Power OFF: 2 seconds
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6. MOTOR P.I. CHECK Checks the operation of the X, Y and Z motors and the photo inter-rupter.• X drive - Reciprocation : “OK” or “NG” is displayed.• Y drive - Reciprocation : “OK” or “NG" is displayed.• Z drive - Reciprocation : “OK” or "NG" is displayed.
7. SOLENOID CHECK Checks the operation of solenoid.• Solenoid is ON/OFF repeatedly at intervals of 2 seconds.
8. XENON COVER CHECK Checks the charge and discharge of the condenser under the coverIN/OUT condition.Checks the operation of the lamp house cover photo interrupter.The following data are displayed by opening/closing the lamp housecover.• COVER : “IN/OUT OK” or “NG” is displayed.• CHARGE ON : “OK” or “NG” is displayed.• CHARGE OFF : “OK” or “NG” is displayed.
9. AGING TEST Used for the aging test.• Xenon lamp flashes. → Motors operate. → Solenoid operates. →
Each LED is ON. This sequence is ON/OFF repeatedly in a cycleof 3 minutes.
10. RS232C CHECK Checks data sending/receiving of RS-232C.• “OK” or “FAIL” is displayed. • Cable connection is not correct: “UNCONNECTED” is displayed.
11. USB CHECK Checks data sending of USB.
FACTORY MENU GROUP-D
1. PROGRAM DOWNLOAD Performs download of the SP-3000P software and writes it on theflash ROM installed in the CPU PCB.
2. ID INPUT Data cannot be transferred when the ID input is not done.ON : The ID input is required.OFF : Data can be transferred without the ID input.
3. ADVANCED MORPHOLOGY It is OFF in normal condition. This is a factory mode (changing thecell analysis mode).
4. MACHINE PARAM This is a factory mode. (This is the function to write the correctionvalues for a specified instrument forcedly.)
－ 18－R-SP3000P-1-0601-01
[FACTORY MENU program start method](1) Turn on the power switch while pressing the [Delete] and [Clear] switches at the same time.
(2) The following display appears on the screen. Press the [Image transfer] switch.
(3) Press the [Photography] switch. Move the cursor to the item to be checked and press the [Image transfer]switch.
The item list is divided into four displays. Use the [Image selector] switch to move to the next display.
(4) On each checking display, press the [Clear] switch to return to the item list display.
(5) Turn off the power switch to end FACTORY MENU.
Clear switchDelete switch
Image transfer switch
－ 19－R-SP3000P-1-0601-01
Caution:If the programs of "FACTORY MENU GROUP-A/B" are executed without installing the spe-cial tools, the memory data may be changed. Be careful.
This chapter describes the programs 1 ~ 12 of "FACTORY MENU GROUP-C" which are used to check thefunctions. Refer to the items of "3-4 Assembly and Adjustment Procedures" for the "FACTORY MENU" pro-grams which are used for adjustment.
Operation of "FACTORY MENU GROUP-B [OPTICAL ADJUST]"
Delete switch : Turns on/off the XY LED and Z LED.Menu switch : Changes the displayed mask image.
Menu switch
Image selector switchImage transfer switch
Delete switch Clear switch
Mask #1The alignment frame is displayed at the center.
Mask #2
Mask #3The perpendicular line is displayed at the center.
Mask #4This is the display for correcting the slit inside dimension.
－ 20－R-SP3000P-1-0601-01
Clear switch : Turns on/off the mask image display.Image transfer switch: Lights the xenon and takes a picture only when observing the endothelium.Image selector switch: Opens and closes the solenoid.
The following table shows the relation between the light sources in this case.
Anterior eye segment observation Endothelium observation
XY LED ON OFF
Z LED OFF ON
－ 21－R-SP3000P-1-0601-01
Check of FACTORY MENU GROUP-C
Check program Display on monitor Check for trouble
E2PROM CHECK
Make sure that "OK" is dis-played.
• When "NG" is displayed:⇒ Replace the CPU PCB.
SWITCH CHECK
Make sure that "∗ " is dis-played for the pressed switch.
• Check the control switchPCB.
• Check the joystick switch.
• Check the cable betweenthe control switch PCB andthe I/O PCB.
LED CHECK
(1)Align the tool test eye.
(2)Make sure that each LEDblinks every 2 seconds onthe monitor.
(3)Observe the fixation LEDfrom the patient side.
• Check the wiring of eachLED.
• Check the XY analog PCB.
• Check the CPU PCB.
XY LED
Anterior eye segment LED
－ 22－R-SP3000P-1-0601-01
Check program Display on monitor Check for trouble
XENON CHECK
Make sure that the xenonlamp lights up every 4 sec-onds.
• The xenon lamp has burnedout.
POWER OFF CHECK
Make sure that "power ON"(2 seconds) and "power OFF"(2 seconds) are repeated.
• Replace the I/O PCB.
MOTOR P.I. CHECK
Make sure that "OK" is dis-played.
• Check each of the photointerrupters and motors.
• Check the I/O PCB.
SOLENOID CHECK
Make sure that the solenoidrepeats its operation every 2seconds.
• Check the solenoid unit.
• Check the XY analog PCB.
• Check the CPU PCB.
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Check program Display on monitor Check for trouble
XENON COVER CHECK
(1)When there is nothingnear the photo interrupter,make sure that the follow-ing messages are dis-played on the monitorscreen:XENON COVER: OUTCHARGE ON : NG
(2)When there is a whitepaper near the photo inter-rupter, make sure that thefollowing messages aredisplayed on the monitorscreen:XENON COVER: INCHARGE ON : OK
• When "IN" and "OUT" arenot switched:⇒ Check the photo inter-
rupter.⇒ Check the CPU PCB.⇒ Check the I/O PCB.
• When "NG" is displayed:⇒ Check the I/O PCB.
RS232C CHECK
(1)Connect the RS-232Ccable to the output termi-nal and the input terminal.
(2)Make sure that "OK" isdisplayed.
• Check the CPU PCB.
RS-232C outputRS-232C cable terminal
RS-232C inputterminal
－ 24－R-SP3000P-1-0601-01
3-2 Disassembly and Assembly Procedures3-2-1 Removing the external covers
Illu
stra
tion
Proc. Disassembly item Removal method Points for assembly
1
2
3
4
5
6
Removing the frontcover
Removing the headright cover
Removing the head leftcover
Removing the monitorcover
Removing the frameright cover
Removing the frameleft cover
• Remove the two screws .• Remove the front cover .
• Remove the cap .• Remove the two screws .
• Remove the four screws .
• Remove the cap .• Remove the two screws .
• Remove the two screws .
• Remove the two screws .
Perform the reversed pro-cedure of disassembly.
54
3
2
8
5
1214
14109
13
7
67
7
11 12
10
9
2
3
6
8
11
13
1
2
4
5
7
9
10
12
14
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3-2-2 Removing the color video monitorIl
lust
rati
on
Proc. Disassembly item Removal method Points for assembly
1 Removing the colorvideo monitor
• Loosen the four screws .• Slide the color video monitor
upward and remove it toward you.• Remove all the cables from the color
video monitor.
Perform the reversed pro-cedure of disassembly.
1
2
2
1
2
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3-2-3 Removing the PCB'sIl
lust
rati
on
Proc. Disassembly item Removal method Points for assembly
1
2
Removing the CPUPCB
Removing the I/O PCB
• Remove the spacer .• Remove the two screws .
• Remove the spacer .• Remove the two screws .
Perform the reversed pro-cedure of disassembly.
4
5
6
1
3
2
1
4
2
3
5
6
－ 27－R-SP3000P-1-0601-01
3-2-4 Removing the control switch PCBIl
lust
rati
on
Proc. Disassembly item Removal method Points for assembly
1
2
Removing the basecover
Removing the controlswitch PCB
• Remove the two screws .• Lift up the base cover and remove
it.
• Remove the two screws .• Remove the connector and then
remove the control switch PCB .
Perform the reversed pro-cedure of disassembly.
2
1
3
4
1
3
2
1
4
3
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3-2-5 Removing the measurement unit PCBIl
lust
rati
on
Proc. Disassembly item Removal method Points for assembly
1
2
3
4
Removing the frames, and
Removing the XY ana-log PCB
Removing the XY sen-sor PCB
Removing the Z sensorPCB
• Remove the two screws for eachframe.
• Remove each frame.
• Remove the connectors at 10 places.• Remove the three screws .
• Remove the connector at 1 place.• Remove the four screws .
• Remove the connectors at 2 places.• Remove the four screws .
Perform the reversed pro-cedure of disassembly.
It is necessary to adjusteach PCB.
3
2
6
5
9
10
1
4
8
7
1 2 3
5
7
9
4
6
8
10
－ 29－R-SP3000P-1-0601-01
3-2-6 Removing the CCD camera unitIl
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Proc. Disassembly item Removal method Points for assembly
1
2
Removing the frame
Removing the CCDcamera
• Remove the two screws .• Remove the frame toward you.
• Remove the two screws .• Remove the connector and then
remove the CCD camera unit toward you.
Perform the reversed pro-cedure of disassembly.
It is necessary to adjustthe CCD camera position.
3
4
12
1
3
2
1
4
3
－ 30－R-SP3000P-1-0601-01
3-2-7 Removing the X/Z original point sensorIl
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Proc. Disassembly item Removal method Points for assembly
1
2
3
Removing the plate
Removing the X origi-nal point sensor
Removing the Z origi-nal point sensor
• Remove the four screws .
• Remove the two screws .
• Remove the two screws .• Remove the two screws .
Perform the reversed pro-cedure of disassembly.
2
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8
－ 31－R-SP3000P-1-0601-01
3-2-8 Removing each LED PCB unit 1Il
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Proc. Disassembly item Removal method Points for assembly
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2
3
4
Removing the centerfixation LED PCB
Removing the XY LEDPCB
Removing the Z LEDPCB
Removing the anterioreye segment illumina-tion LED PCB
• Remove the connector J405.• Remove the two screws .
• Remove the connector J403.• Remove the two screws .
• Remove the connector J404.• Remove the two screws .
• Remove the connector J408.• Remove the two screws for each
fixing plate. Then, remove each fixingplate .
• Remove the two screws at eachplace.
Perform the reversed pro-cedure of disassembly.
It is necessary to adjust theposition and electricity.
It is necessary to adjust theposition and electricity.
10
3
45
6
1
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9
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7
10
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7
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9
10
－ 32－R-SP3000P-1-0601-01
3-2-8 Removing each LED PCB unit 2Il
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Proc. Disassembly item Removal method Points for assembly
1
2
Removing the verticalfixation LED PCB
Removing the horizon-tal fixation LED PCB
• Remove the connector J406.• Remove the two screws .• Remove the two screws .• Remove the two screws at each
place.
• Remove the connector J407.• Remove the two screws at each
place.
Perform the reversed pro-cedure of disassembly.
1
5
2
42
2
6
3
1
5
1
5
4
6
2
2
－ 33－R-SP3000P-1-0601-01
3-2-9 Removing the switching power supplyIl
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Proc. Disassembly item Removal method Points for assembly
1
2
3
4
Removing the adjusters
Removing the lockingknob unit
Removing the bottomplate
Removing the switch-ing power supply
• Turn the two adjusters at the LCDside counterclockwise and removethem.
• Remove the four screws .• Remove the locking knob unit.
• Loosen the four screws and moveeach unit inward.
• Remove the six screws .• Pull out the bottom plate slowly.Note: Don’t pull out the bottom plate
forcedly because the cablesare connected to it.
• Remove the connectors at 3 places.• Remove the four screws .
Perform the reversed pro-cedure of disassembly.
Be careful not to catchthe cables.
8
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6
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1
4
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7
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6
8
－ 34－R-SP3000P-1-0601-01
3-3 Troubleshooting
3-3-1 Troubles related with the color video monitor(1) No image is displayed.(2) No character is displayed.
3-3-2 Error messages are displayed on the screen.(1) “XENON OVER”(2) “XENON POWER PCB ERROR”(3) “CABLE UNCONNECTED”(4) “RS232C FAIL”(5) “USB FAIL”(6) “CHANGE BATTERY”(7) “COVER OUT”
3-3-3 Troubles at alignment(1) Automatic alignment does not operate.(2) Automatic alignment operates but the endothelium is not photographed. (The image cannot be changed to
the endothelium one or it is difficult to change.)(3) The image is stored but flash is not done. (The photographed image is very dark.)(4) The image is not stored and flash is not done. (Alignment still continues.)
3-3-4 After photographing(1) The image cannot be transferred for IMAGEnet.(2) Data cannot be inputted or outputted by RS-232C.(3) Data cannot be outputted by USB.(4) Zooming and simplified cell analysis cannot be done.
－ 35－R-SP3000P-1-0601-01
3-3-1 Troubles related with the color video monitor
CPU PCB
I/O PCB
CCD camera
LCD
VOLUMEPCB
J104
J103
J101-102
DATA
+12V
+12V
J203-J204
J206 J205
Image signal
ImagesignalDATA
CCD cameraA/D conversion
CPU PCBA/D conversion
－ 36－R-SP3000P-1-0601-01
(1) No image is displayed.
[CHECK POINT]Adjust "BRIGHT" of LCD.Check the power supply (+12V).Power supply for LCD (+12V) I/O PCB: J205 No. 1, 2 +12V No. 3, 4 GNDPower supply for CCD camera (+12V) I/O PCB: J206 No. 1 +12V No. 2 GNDCheck the cable between the CPU PCB and the CCD camera and the cable between the CPU PCB andthe LCD.When the instrument operates:The probable cause is the LCD, CCD camera or CPU PCB.It is highly possible that the LCD malfunctions.When the photographed image is not displayed:The probable cause is the CPU PCB or CCD camera.
(2) No character is displayed.
[CHECK POINT]Adjust the brightness of characters.The CPU PCB malfunctions.
1
2
3
4
5
1
2
－ 37－R-SP3000P-1-0601-01
3-3-2 Error messages are displayed on the screen.(1) The following message is displayed.
“XENON OVER”
[CHECK POINT]Conditions of the message:Charge is stopped and discharge is forcedly done because the charge voltage is excessive.Replace the I/O PCB if the message is still displayed though the charge voltage adjusting VR (I/OPCB: VR201) is readjusted.
(2) The following message is displayed.“XENON POWER PCB ERROR”
[CHECK POINT]Conditions of the message: The xenon charging condenser is not charged.Check if the connectors J202 and J218 are plugged in.If the above is OK, replace the I/O PCB.
(3) The following message is displayed.“CABLE UNCONNECTED”
[CHECK POINT]Conditions of the message:When data is outputted in the RS-232C or USB data output allowable mode and when the cable is notconnected.Check if the RS-232C output terminal or the USB output terminal is properly connected to a personalcomputer (PC).Check if the connectors at the DATA OUT side (J115 and J117) are plugged in.
(4) “RS232C FAIL” is displayed.
[CHECK POINT]Conditions of the message:When data is inputted or outputted in the RS-232C data input or output allowable mode, the communi-cation protocol is not good.Check if the communication specification of PC or the data input device is set correctly.Check if the data input/output terminals are connected correctly.
(5) The following message is displayed.“USB FAIL”
[CHECK POINT]Conditions of the messages:When data is not outputted well in the USB data output allowable mode.Start the application program at the PC side. Check if communication is possible by restarting.If the communication is still NG, restart the instrument and PC to check the operation.
(6) The following message is displayed.“CHANGE BATTERY”
[CHECK POINT]Conditions of the message: The clock IC battery is dead.Replace the battery of the clock IC on the I/O PCB.
1
2
1
2
3 2
1
2
3
1
2
3
1
2
3
1
2
－ 38－R-SP3000P-1-0601-01
(7) The following message is displayed.“COVER OUT”
[CHECK POINT]Conditions of the message: The lamp house cover is removed with the power ON.Check if the lamp house cover is set correctly.(Set a white paper near the photo interrupter and check if it is detected.)Check the connectors and cables.Check the J410 3-pin signal.COVER is set...........L (0V)COVER is not set.....H (5V)Check the connector J401 and cable on the XY analog PCB and the connector J105 and cable on theCPU PCB.If the above and are OK, replace the CPU PCB.
* When this error message is displayed, the xenon condenser is being discharged.
1
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5
6 4 5
－ 39－R-SP3000P-1-0601-01
3-3-3 Troubles at alignment
(1) Automatic alignment does not operate.
[CHECK POINT]Start “FACTORY MENU Program” and check the operation of the X, Y and Z motors in “MOTORP.I. CHECK”.
When “NG” is displayed, check the connection of the relevant motor and the wiring of the relevantoriginal point sensor.
Check if the mechanism of the relevant motor unit operates smoothly.
Connect the synchroscope to the following test point of the I/O PCB, which corresponds to the relevantmotor. Start “MOTOR P.I. CHECK” and check if the signal is changed (LOW level → HIGH level).X motor: TP214 LOW level (near 0V) in normal status
HIGH level (5V) when the original point is detectedZ motor: TP217 LOW level (near 0V) in normal status
HIGH level (5V) when the original point is detectedY motor: TP215 LOW level (near 0V) in normal status
HIGH level (5V) when the upper limit is detectedY motor: TP216 LOW level (near 0V) in normal status
HIGH level (5V) when the lower limit is detected
If the signal of the test point is changed, it is highly possible that the I/O PCB malfunctions.If the signal is not changed, it is judged that the relevant original point sensor malfunctions.Replace the relevant original point sensor.
If the instrument is still abnormal though the above-mentioned check is done, it is judged that the rele-vant motor malfunctions.Replace the relevant motor.
When “OK” is displayed, check if XY alignment or Z alignment is properly adjusted.
If the above-mentioned check or adjustment cannot be done, it is judged that the relevant PCB malfunc-tions.XY alignment : Replace the XY sensor PCB or XY analog PCB.Z alignment : Replace the Z sensor PCB.
1
－ 40－R-SP3000P-1-0601-01
(2) Automatic alignment operates but the endothelium is not photographed. (The image cannot be changed tothe endothelium one or it is difficult to change.)
[CHECK POINT]Start “FACTORY MENU Program” and perform “SOLENOID CHECK” to check if the image ischanged.
If the solenoid is not turned ON/OFF, check the connection of J410 on the XY analog PCB.
Check the light path selector mechanism.
If there is no problem in the light path selector mechanism, it is judged that the solenoid unit malfunc-tions. Replace the solenoid unit.
If the solenoid is turned ON/OFF, check if the XY alignment or Z alignment is properly adjusted.
If the above-mentioned check or adjustment cannot be done, it is judged that the relevant PCB malfunc-tions.XY alignment : Replace the XY sensor PCB or the XY analog PCB.Z alignment : Replace the Z sensor PCB.
1
－ 41－R-SP3000P-1-0601-01
(3) The image is stored but flash is not done. (The photographed image is very dark.)
[CHECK POINT]Start “FACTORY MENU Program” and perform “XE CHECK” to check if flashing is done.
(4) The image is not stored and flash is not done. (Alignment still continues.)
[CHECK POINT]Check if XY alignment or Z alignment is properly adjusted.
If the xenon lamp does not flash, check the connection of J215 on the I/O PCB.
If flashing is not done though the xenon lamp is replaced, it is judged that the I/O PCB malfunctions.Replace the I/O PCB.
If the xenon lamp flashes, replace the xenon lamp or check the optical system light path and check if thexenon lamp is stained.
If the above-mentioned check or adjustment cannot be done, it is judged that the relevant PCB malfunc-tions.XY alignment : Replace the XY sensor PCB or the XY analog PCB.Z alignment : Replace the Z sensor PCB.
1
1
－ 42－R-SP3000P-1-0601-01
3-3-4 After photographing(1) The image cannot be transferred for IMAGEnet.
[CHECK POINT]Is the VIDEO signal outputted?Is D-SUB9PIN connected from J113 of the I/O PCB?
(2) Data cannot be inputted or outputted by RS-232C.
[CHECK POINT]Is the initial setting correct for inputting or outputting data?Connect the cross cable (commercial product) for D-SUB9PINs and start “FACTORY MENU Pro-gram”. Then, perform “RS232C CHECK” and check if “OK” is displayed.When “OK” is displayed → Check the setting for RS-232C on the partner side.When “FAIL” is displayed → The CPU PCB malfunctions. Replace the CPU PCB.
(3) Data cannot be outputted by USB.
[CHECK POINT]Check if “RS-232C” is initially set for outputting data.
12345
12
J113
J112
56789
4321
D-SUB 9PINCONTROL
VIDEO OUT
DG
DG
SIGNAL
I/O PCB
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2
1
2
1
－ 43－R-SP3000P-1-0601-01
(4) Zooming and simplified cell analysis cannot be done.
[CHECK POINT]Does the mouse operate normally?
Check the connection of the mouse connector.Check if the mouse operates normally by inserting/removing the connector.
Check the connection of J116 on the CPU PCB.
Replace the mouse with a new one and check if it operates normally.If the mouse does not operate normally, it is judged that the CPU PCB malfunctions.Replace the CPU PCB.
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－ 44－R-SP3000P-1-0601-01
3-4 Assembly and Adjustment Procedures
3-4-1 Adjustments and cautions when replacing each unitWhen replacing the units of the electric system as the result of troubleshooting and self-check, the necessaryadjustments are shown below.
When replacing or adjusting the PCB's mentioned above, be sure to carry out the checks or adjustments in thefollowing order.
Checking of the switching power supply output voltageEEPROM initial settingAdjustment of the XY LED luminanceStoring of the XY alignment offset on CCDAdjustment of the XY alignment circuit frequencyAdjustment of the XY alignment sensor positionAdjustment of the XY alignment circuit gainStoring of the XY alignment circuit offsetAdjustment of the Z LED luminanceAdjustment of the Z alignment sensor positionAdjustment of the Z alignment sensor circuit gainStoring of the Z alignment circuit offsetAdjustment of the xenon light intensityStoring of the corneal thickness correction valueStoring of the IMAGEnet mask slit inside dimensionDate settingTime setting
Unit name Unit number Adjustment and caution Page
Switching power supply 41903 66300 • Checking of the switching power supply outputvoltage
45
I/O PCB 41903 72000 • Replacement of EEPROM (The old EEPROM before replacement → TheEEPROM to be newly installed)
• Adjustment of the xenon light intensity
—
57
CPU PCB 41903 71000 • Storing of the XY alignment circuit offset• Storing of the Z alignment circuit offset• Storing of the corneal thickness correction value• Storing of the IMAGEnet mask slit inside dimen-
sion
52565859
XY analog PCB 41903 74000 • Adjustment of the XY alignment circuit frequency• Adjustment of the XY alignment circuit gain• Storing of the XY alignment circuit offset
495152
XY sensor PCB 41903 75100 • Adjustment of the XY alignment sensor position• Adjustment of the XY alignment circuit gain• Storing of the XY alignment circuit offset
505152
Z sensor PCB 41903 75500 • Adjustment of the Z LED luminance• Adjustment of the Z alignment sensor position• Adjustment of the Z alignment sensor circuit gain• Storing of the Z alignment circuit offset
53545556
XY LED PCB 41903 76100 • Adjustment of the XY LED position 71
Z LED PCB 41903 76200 • Adjustment of the Z LED position 69
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－ 45－R-SP3000P-1-0601-01
3-4-2 Checking of the switching power supply output voltage[Purpose] Check the switching power supply output voltage so that the voltage at each unit can meet the
standard of the element being used during operation.Make sure that the power supply voltage at each PCB is within the standard.
[Procedure] Make sure that the output voltage of the switching power supply is within the followingstandard.
Make sure that all the cables of the electric parts are correctly connected. Then, make surethat the output voltage at each PCB is within the standard.
Output voltage Standard
DC+24V Reference voltage ±10%
DC+285V Reference voltage ±10%
Output voltage Standard PCB to be measured Pin No.
DC+18V output +18V±10% I/O PCB (4190372000) TP204
DC+15V output +15V±5% I/O PCB (4190372000) TP207
DC+12V output +12V±0.5V I/O PCB (4190372000) TP208
DC-15V output -15V±5% I/O PCB (4190372000) TP210
DC+5.0V output +5.0V±0.5V I/O PCB (4190372000) TP205
DC+3.3V output +3.3V±0.3V I/O PCB (4190372000) TP209
DC+1.5V output +1.5V±0.1V CPU PCB (4190371000)
1
2
－ 46－R-SP3000P-1-0601-01
3-4-3 EEPROM initial setting[Purpose] Store the initial value of each correction value before adjusting the electricity of SP-3000P.
Unless this setting is done, all the adjustments are adversely affected hereafter (for example, thecharacter display position is not proper on the monitor screen).
[Procedure] Start the "FACTORY MENU" program and make sure that the selection display appears onthe screen.Set SW201 to the WP-OFF side on the I/O PCB to cancel WRITE-PROTECT. (LED208 isturned on.)Press the [Photography] switch. Select "A-1. EEPROM INITIALIZE" and press the [Imagetransfer] switch.The display as shown below appears on the monitor screen. Press the [Image transfer]switch, and EEPROM is initialized.When the initialization is finished normally, "EEPROM INITIALIZATION DONE" is dis-played on the monitor screen.When the initialization fails, "EEPROM INITIALIZATION FAILED" is displayed on themonitor screen.After the initialization is finished, press the [Image transfer] switch to return to the selectiondisplay.
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6
7
－ 47－R-SP3000P-1-0601-01
3-4-4 Adjustment of the XY LED luminance[Purpose] Make the light intensity of the XY alignment LED uniform for each instrument.
[Procedure] Set the tool base and the XY detection system tool.Select "GROUP-A XY LED ADJUST" in the FACTORY MENU program.The luminance level of the XY LED and the OK/NG for judgment are displayed. AdjustVR9 (XY analog PCB) so that the luminance may be within the standard.
Standard Adjustment place
The value on the monitor should be105±5 and "OK" should be displayed.
VR9 (XY analog PCB)
1
2
3
－ 48－R-SP3000P-1-0601-01
3-4-5 Storing of the XY alignment offset on CCD[Purpose] Store the reference position to perform the XY alignment on CCD in EEPROM.
[Procedure] Set the tool base and the XY detection system tool.Select "GROUP-A CCD CENTER ADJUST" in the "FACTORY MENU" program.The "CCD CENTER ADJUST" display appears on the monitor screen as shown below.Make sure that the numerical values are displayed and then exit from this program with the[Clear] switch.
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3
－ 49－R-SP3000P-1-0601-01
3-4-6 Adjustment of the XY alignment circuit frequency[Purpose] Tune the synchronized frequency of the band-pass filter circuit in the XY alignment (PSD sen-
sor) circuit in the LED modulated frequency (3.6kHz). Unless this adjustment is done correctly,the filter characteristics are deteriorated by temperature change.
[Procedure] Set the tool base and the XY detection system tool.Select "GROUP-B XY SENSOR ADJUST" in the "FACTORY MENU" program.The display as shown below appears on the monitor screen. The XY LED is turned on andadjustment is possible.Connect the probes of the oscilloscope as shown below.• Observation probe : TP5 (XY analog PCB)• Ground : TP7 (XY analog PCB)Turn VR6 clockwise to maximize the signal amplitude. At this time, set the perpendicularaxis sensitivity of the oscilloscope at 2V/div and run electricity for the XY LED not to causesaturation (by VR9 on the XY analog PCB).Connect the observation probe of the oscilloscope to TP4, TP2 and TP1 in turn and adjustVR5, VR1 and VR2 so that each signal amplitude may be maximum. Adjust each VR byturning it in the same direction.
Standard Adjustment place
Maximum amplitude
Conditions:The perpendicular axis sen-sitivity: 2V/divPower up the XY LED notto cause saturation.
X1 axis VR6 TP5
X2 axis VR5 TP4
Y1 axis VR1 TP2
Y2 axis VR2 TP1
Condition: Adjust each VR by turning it inthe same direction (clockwise).
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6
－ 50－R-SP3000P-1-0601-01
3-4-7 Adjustment of the XY alignment sensor position[Purpose] Adjust the XY alignment light to be approximately at the center of the XY sensor. Unless this
adjustment is done correctly, the alignment detection range is not well-balanced.
[Procedure] Carry out this adjustment just after "3-4-6 Adjustment of the XY alignment circuit fre-quency" without changing the condition.Connect the probes of the oscilloscope as shown below.• Observation probe (CH1) : TP5 (XY analog PCB)
(CH2) : TP4 (XY analog PCB)• Ground : TP7 (XY analog PCB)Set "CHOP MODE" for the oscilloscope. Move the XY sensor PCB in the X direction toadjust its position so that the level of TP5 may be the same as TP4.Connect the probes (CH1) and (CH2) of the oscilloscope to TP2 and TP1. Move the XYsensor PCB in the Y direction to adjust its position so that the level of TP2 may be the sameas TP1.Repeat the above and several times. Adjust the XY sensor PCB position until eachlevel for TP5 and TP4 and for TP2 and TP1 is within the standard.Press the [Image transfer] switch to return to the selection display.
Standard Adjustment place
Level difference ∆V = Within 0.4V
Conditions:Perpendicular axis sensitivity: 2V/divPower up the XY LED not to causesaturation.
XY sensor PCB
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5 3 4
6
∆V
－ 51－R-SP3000P-1-0601-01
3-4-8 Adjustment of the XY alignment circuit gain[Purpose] Adjust the circuit sensitivity so that the XY alignment can be detected correctly when the
patient's eye is aligned.
[Procedure] Carry out this adjustment just after "3-4-7 Adjustment of the XY alignment sensor position"without changing the condition.Select "GROUP-B XY SENSOR ADJUST" in the "FACTORY MENU" program.The gain level values of the XY alignment circuit are displayed. Adjust VR8, VR7, VR4and VR3 (XY analog PCB) so that the level values may be within the standard.After adjustment, press the [Image transfer] switch to return to the selection display.
Standard Adjustment place
The displayed value on themonitor:
107±5
X1 axis VR8
X2 axis VR7
Y1 axis VR4
Y2 axis VR3
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－ 52－R-SP3000P-1-0601-01
3-4-9 Storing of the XY alignment circuit offset[Purpose] Store the condition of the XY alignment circuit system in EEPROM so that the adjustment error
of the circuit system may be finally canceled. Unless this storing procedure is done correctly,the position detection accuracy of the XY alignment cannot be obtained.
[Procedure] Set the tool base and the XY detection system tool.Select "GROUP-B XY SENSOR ADJUST" in the "FACTORY MENU" program.Press the [Image transfer] switch, and measurement starts.The offset values (Level of X1, Level of X2, Level of Y1 and Level of Y2) on the sensor aredisplayed. By pressing the [Image transfer] switch, measurement is automatically repeateduntil "100" is shown on "COUNT". After measurement, these values are automaticallystored in EEPROM.If "COUNT" does not reach "100", the tools are not set properly or the XY alignment circuitsystem is not adjusted correctly.If you want to store the values again, press the [Clear] switch to return to the selection dis-play and select "GROUP-B XY SENSOR ADJUST" again.After storing, press any switch to return to the selection display.
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5
－ 53－R-SP3000P-1-0601-01
3-4-10 Adjustment of the Z LED luminance[Purpose] Make the light intensity of the Z alignment LED uniform for each instrument.
[Procedure] Set the tool base and the Z detection system tool B.Select "GROUP-B Z SENSOR ADJUST" in the "FACTORY MENU" program.Connect the probes of the oscilloscope as shown below.• Observation probe: Z VIDEO (Z sensor PCB)• Ground : AG (Z sensor PCB)Set the instrument so that you can observe one perpendicular synchronization section.Adjust VR10 (XY analog PCB) so that the voltage level of the endothelium signal againstthe blanking level may be within standard.
Standard: 0.3V±0.2V
1
2
3
4
Voltage: 0.3V±0.2V
－ 54－R-SP3000P-1-0601-01
3-4-11 Adjustment of the Z alignment sensor position[Purpose] Adjust the Z alignment slit light to be approximately at the center of the Z sensor. Unless this
adjustment is done correctly, the Z alignment detection range is not well-balanced.
[Procedure] Carry out this adjustment just after "3-4-10 Adjustment of the Z LED luminance" withoutchanging the condition.Remove the Z detection system tool B and set the Z slit tool.Connect the probes of the oscilloscope as shown below.• Observation probe : Z VIDEO (Z sensor PCB)• Ground : AG (Z sensor PCB)The different-level reflected slit light is displayed on the monitor screen as illustrated. Aswatching the oscilloscope, adjust the Z sensor PCB position in the Y direction so that thelight on the center of the shadowed section A may be received. The Z sensor PCB positionin the X direction should be the position where it touches the metal part.When the light of the shadowed section A is received, the waveform on the oscilloscopeshifts rightward as shown below. At the middle position of this shift, fix the PCB.
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5
Different-level slit light
－ 55－R-SP3000P-1-0601-01
3-4-12 Adjustment of the Z alignment sensor circuit gain[Purpose] Adjust the circuit sensitivity so that Z alignment can be detected correctly when the patient's eye
is aligned.
[Procedure] Carry out this adjustment just after "3-4-11 Adjustment of the Z alignment sensor position"without changing the condition.Remove the Z slit tool and set the Z projection system tool B.Adjust VR1 (Z sensor PCB) so that the amplitude of the endothelium signal may be withinthe standard on the oscilloscope.
Standard: 3.0V±0.1V
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3
3.0V±0.1V
－ 56－R-SP3000P-1-0601-01
3-4-13 Storing of the Z alignment circuit offset[Purpose] Store the condition of the Z alignment circuit system in EEPROM so that the adjustment error of
the circuit system may be finally canceled. Unless this storing procedure is done correctly, theposition detection accuracy of the Z alignment cannot be obtained.
[Procedure] Carry out this storing procedure just after "3-4-12 Adjustment of the Z alignment sensor cir-cuit gain" without changing the condition.Press the [Image transfer] switch, and the value for "COUNT" is increased. Then, the endothelium reflection position, "N", and the optical magnification "M" on thesensor are displayed as the numerical values.If the value for "COUNT" is not increased, the tools are not set properly or the Z alignmentcircuit system is not adjusted correctly.After storing, press the [Image transfer] switch to return to the selection display.
1
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4
COUNT UP
Display while storing the offset
Display when the offset storing procedure isfinished
－ 57－R-SP3000P-1-0601-01
3-4-14 Adjustment of the xenon light intensity[Purpose] Adjust the charging voltage of the xenon tube lighting condenser. Unless this adjustment is done
correctly, the brightness of the photographed endothelium image is different between the instru-ments.
[Procedure] While the power is OFF, set VR201 of the I/O PCB to the medium position.Set the tool base and the Z projection system tool B.Connect the BNC video cable from the VIDEO OUT terminal to the oscilloscope. Set theinstrument so that you can observe one horizontal synchronization section.Turn on the power. When the photography result display appears, observe the luminancelevel of one horizontal synchronization section on the sample chart for 2000 through oscillo-scope.If the luminance level is out of the standard, adjust VR201 again, perform photography andcheck the luminance level.Repeat this procedure until the luminance level is within the standard. The VIDEO signallevel in "FLASH HIGH" should be a reference value.The light intensity is increased by turning the volume clockwise.
Standard: In "FLASH LOW" : V = 550mV ~ 600mVIn "FLASH HIGH": (V = 825mV ~ 900mV)
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5
Voltage
Screen on oscilloscope
V
－ 58－R-SP3000P-1-0601-01
3-4-15 Storing of the corneal thickness correction value[Purpose] Store the correction value which is to be used for the final correction calculation in EEPROM so
that the absolute accuracy of the corneal thickness can be ensured.
[Procedure] Set the corneal thickness test eyes (three test eyes with different thickness) onto the chinrestunit.Select "GROUP-B PACHOMETRY ADJUST" in the "FACTORY MENU" program.The corneal thickness of the test eye as a reference is displayed on the monitor screen asshown below. Change the value with the [Chinrest up/down] switches and change the digitwith the selector switch to adjust finely in order to get the corneal thickness of the test eye tobe measured.
By using the [Image selector] switch, move to the approximate position of the test eye,which is the target displayed on the screen. Measurement is performed ten times accordingto automatic alignment.Repeat the procedure of above and by using the three test eyes. The correction valuesare displayed and they are automatically written in EEPROM. Then, press any switch toreturn to the MENU display.
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5 3 4
－ 59－R-SP3000P-1-0601-01
3-4-16 Storing of the IMAGEnet mask slit inside dimension[Purpose] Store the mask slit inside dimension in EEPROM in consideration of the optical magnification
error so that the scale calibration, which is necessary for IMAGEnet cell analysis, can be donecorrectly.
[Procedure] Set the tool base and the Z detection system tool A.Select "GROUP-A IMAGEnet SLIT MEMORY" in the "FACTORY MENU" program andset the test eye so that you can see the following image.
Select the "UPPER" and "LOWER" lines with the [Image selector] switch. By using the[Chinrest up/down] switches, align "UPPER" to the upper third square and "LOWER" to thelower third square with the black point of the test eye chart as the center. Click the [Imageselector] switch to store the interval of the six squares on the test eye chart.Press the [Photography] switch, and the mask slit inside dimension, which is calculated inconsideration of the optical magnification error, is stored.Press any switch on the control panel to return to the "FACTORY MENU" display.
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UPPER
LOWER
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4
5
－ 60－R-SP3000P-1-0601-01
3-4-17 Date setting[Procedure] Turn on the power switch.
Press the [MENU] switch on the control panel.
The "ID INPUT" dialog box is displayed as shown below.
Fit the mouse pointer to the "DATE SET" tab and click it.The "DATE SET" dialog box is displayed. Fit the mouse pointer to the "Y/M/D" icon,which is the date order icon, and click it.
Fit the mouse pointer to the desired numeral on the "Ten key" icons and click it.The entered numeral is displayed on the date display area.Enter the numerals continuously until the desired date is displayed. Then, fit the mousepointer to the "Enter key" icon and click it. The date is set.
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[MENU] switch
Line B
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8
－ 61－R-SP3000P-1-0601-01
3-4-18 Time setting[Procedure] Fit the mouse pointer to the "TIME SET" tab and click it.
The "TIME SET" dialog box is displayed. Fit the mouse pointer to the "AM/PM key" iconand click it.
Fit the mouse pointer to the desired numeral on the "Ten key" icons and click it.Enter the numerals continuously until the desired time is displayed. Then, fit the mousepointer to the "Enter key" icon and click it. The time is set.
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4
－ 62－R-SP3000P-1-0601-01
3-4-19 Adjustment of the anterior eye segment rear lens group[Procedure] Remove the diaphragm (41902 1122) and set the tool cross scale.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [MENU] switch on the control panel to erase "! scale" on the screen.Illuminate from the patient's eye side.Adjust the CCD camera so that the tool cross scale may be displayed at the center of themonitor.By moving the rear lens group cell unit back and forth, fit the focus to the first long scaleline from the center and then fix the unit.Remove the tool cross scale and set the diaphragm (41902 1122).
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Illumination
Diaphragm
Tool cross scale
Rear lens group cell unit
Adjust the focus on the
CCD camerasurface
monitor screen.
(41902 1122)
－ 63－R-SP3000P-1-0601-01
3-4-20 Adjustment of the anterior eye segment front lens group[Procedure] Carry out this adjustment just after "3-4-19 Adjustment of the anterior eye segment rear lens
group" without changing the condition.Set the tool base and the XY detection system tool.By moving the front lens group cell unit (41902 1150) back and forth, make adjustment sothat XY bright spot may be circular and then fix the unit.
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XY detection
Front lens group cell unit
The XY bright spot should be
system tool
circular.
－ 64－R-SP3000P-1-0601-01
3-4-21 Adjustment of the CCD camera position[Procedure] Carry out this adjustment just after "3-4-20 Adjustment of the anterior eye segment front
lens group" without changing the condition.Press the [MENU] switch on the control panel to display "! scale".By moving the CCD camera, make adjustment so that the XY bright spot may be within the"!" (the displayed mark for adjustment) and then fix the camera.* Be careful not to set the CCD camera slantingly. (If it is set slantingly, the observation/
photography slits are tilted.)Press the [Photography] switch to return to the "FACTORY MENU" program display.
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XY detection
Monitor screen
The displayed mark
XY bright spot image
system tool
for adjustment
－ 65－R-SP3000P-1-0601-01
3-4-22 Adjustment of the photography system relay lens[Procedure] Remove the slit holder (41902 1307) from the mask unit sub.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [Image selector] switch on the control panel, raise the solenoid and change to thephotography system.Illuminate from the patient's eye side.By moving the relay lens unit (41902 1380) back and forth, adjust the focus temporarily sothat the mask image can be seen.Move the relay lens unit by using the pulling screw and pushing screw on the side of theendothelium reflection mirror unit so that the mask may be displayed at the center of theinstrument monitor.Turn the mask lens unit (41902 1350) so that the mask slit may be perpendicular on theinstrument monitor screen.Press the [MENU] switch on the control panel, and the memory image appears on the instru-ment monitor screen.Move the relay lens unit a little by using the pulling screw and pushing screw on the side ofthe endothelium reflection mirror unit to make adjustment so that the memory image may bepositioned at the center.By moving the relay lens unit back and forth, make adjustment to set the mask slit focusequally in right and left.Repeat the above to to adjust the position and focus of the mask.Press the [Photography] switch to return to the "FACTORY MENU" program display.
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Slit holder [Mask unit sub]
If the mask is positioned between the
Relay lens unit(Move this unit back and forth to adjust focus.)
Endothelium reflectionmirror unit
memory images, the point is within "!3mm".
－ 66－R-SP3000P-1-0601-01
3-4-23 Adjustment of the photography system condenser lens[Procedure] Set the tool base and the Z detection system tool B.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [Image selector] switch on the control panel, raise the solenoid and change to thephotography system.Press the [DELETE] switch on the control panel to turn off the Z LED.Illuminate from the patient's eye side.By moving the condenser lens cell unit (41902 1320) back and forth with the screws, carryout focusing so that the chart can be seen.By turning the eccentric adjustment lens sub eccentrically, make adjustment so that the chartcenter may be fit to the mask center.By moving the condenser lens cell unit (41902 1320) back and forth with the screws, makeadjustment to bring the center longitudinal line of the chart into focus.* Adjust focus so that the blur may be uniform from the center longitudinal line to the right
and left longitudinal lines on the chart.Repeat the above to to adjust the position and focus.Press the [MENU] switch on the control panel to make sure that the black point is within the"!" of the memory image.Press the [Photography] switch to return to the "FACTORY MENU" program display.
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11
Eccentric adjustment lens sub
Focus position
Approx. center of mask
Z detection systemtool B
－ 67－R-SP3000P-1-0601-01
3-4-24 Adjustment of the observation slit[Procedure] Set the tool base and the Z detection system tool A.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [Image selector] switch on the control panel, raise the solenoid and change to thephotography system.Move the observation slit with the adjustment screws (pushing screw and pulling screw) tobe at the center of the instrument monitor screen.By moving the mirror holder unit (41902 1220) back and forth, adjust the focus of the obser-vation slit correctly.Press the [MENU] switch on the control panel, and the memory image appears on the instru-ment monitor screen.Move the observation slit a little with the adjustment screws (pushing screw and pullingscrew) to make adjustment so that the memory image may be positioned at the center of theslit center section.
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Slit image Memory image
Z detection system
Adjustment screw
Mirror holder unit (41902 1220)
tool A
－ 68－R-SP3000P-1-0601-01
3-4-25 Adjustment of the photography slit[Procedure] Carry out this adjustment just after "3-4-24 Adjustment of the observation slit" without
changing the condition.Remove the reflection mirror unit and the xenon lamp unit. Illuminate with the halogenlight source device equipped with light guide from the xenon lamp position.Press the [DELETE] switch on the control panel to turn off the Z LED.Move the photography slit right and left to be positioned at the center of the instrument mon-itor screen.By moving the slider back and forth, adjust the slit focus correctly.Press the [MENU] switch on the control panel, and the memory image appears on the instru-ment monitor screen.Make adjustment so that the photography slit may be positioned at the center of the memoryimage.Press the [Photography] switch to return to the "FACTORY MENU" program display.Set the reflection mirror unit and the xenon lamp unit.
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Memory image Slit image
Tool(Z test eye A)
LED holder
Photography slit
Visible-light
Slider Xenon lamp unit Reflection mirror unit
illumination
(By moving back and forth, adjust focus.By moving right and left, adjust position.)
－ 69－R-SP3000P-1-0601-01
3-4-26 Adjustment of the Z LED position[Procedure] Set the tool base and the Z projection system tool A.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [MENU] switch on the control panel to erase "! scale" on the screen.Press the [Image selector] switch on the control panel, raise the solenoid and change to thephotography system.By moving the LED holder longitudinally and laterally, make adjustment so that the centerof the Z LED luminous flux may be positioned at the center of the observation slit on theinstrument monitor screen.Remove the tool base and the Z projection system tool A. By viewing from the patient side,make sure that the luminous flux center is at the diaphragm center of the lens unit (#1210).Press the [Photography] switch to return to the "FACTORY MENU" program display.
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Lens unit (#1210)LED holder
Z projectionsystem tool A
－ 70－R-SP3000P-1-0601-01
3-4-27 Adjustment of the knife edge position[Procedure] Set the tool base and the Z detection system tool B.
Set the slit holder.Remove the reflection mirror unit and the xenon lamp unit. Illuminate with the halogenlight source device equipped with light guide from the xenon lamp position.Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [MENU] switch on the control panel to erase "! scale" on the screen.Press the [Image selector] switch on the control panel, raise the solenoid and change to thephotography system.Press the [DELETE] switch on the control panel to turn off the Z LED.By turning the bracket and by using the pulling screw and pushing screw on the side of theslit holder, make adjustment so that the analyzed image of the knife edge may be positionedperpendicularly to the left fifth line from the chart center longitudinal line.Press the [Photography] switch to return to the "FACTORY MENU" program display.Set the reflection mirror unit and the xenon lamp unit.
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10
Slit holder Bracket
Eccentric adjustment lens sub
Analyzed image
Z detectionsystem tool B
－ 71－R-SP3000P-1-0601-01
3-4-28 Adjustment of the XY LED position[Procedure] Set the tool base and the XY detection system tool.
Select "GROUP-B OPTICAL ADJUST" in the "FACTORY MENU" program.Press the [MENU] switch on the control panel to erase "! scale" on the screen.Adjust the position of the XY LED PCB so that the XY bright spot may be brightest. Then,fix the XY LED PCB.
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XY bright spotXY LED PCB
－ 72－R-SP3000P-1-0601-01
4. TOOL LIST
4-1 Special Repair Tools
Tool No.Usagerank
Name Illustration Application
SP-2000P-01
B Tool base • Optical and electrical adjustment
-02 B XY detection systemtool
• Adjustment of the XY alignment• Adjustment of the anterior eye
segment front lens group and CCDcamera
• Adjustment of the XY LED posi-tion
-03 B Z projection systemB tool
• Adjustment of the Z alignment
-04 B Z slit tool • Adjustment of the Z alignmentsensor position
-05 B Cross scale tool • Adjustment of the anterior eyesegment rear lens group
-06 B Z detection systemA tool
• Adjustment of the projection sys-tem objective lens focus
-07 B Z projection systemA tool
• Adjustment of the observation/projection slit
-08 B Z detection systemB tool
• Adjustment of the knife edge
－ 73－R-SP3000P-1-0601-01
4-2 General Repair Tools
• Synchroscope• Digital multimeter• Halogen lamp illumination device equipped with light guide (50W or higher)• Phillips screwdriver set• Slotted screwdriver set• Hexagonal wrench set
Tool No.Usagerank
Name Illustration Application
SP-3000P-01
A Corneal thicknesstest eye0.4, 0.5, 0.6, 0.7,0.78mm
• Checking of the corneal thicknessaccuracy and corneal thicknesscorrection
-02 A Corneal thicknesstest eye andattachment0.4, 0.6, 0.78mm
• Checking of the corneal thicknessaccuracy and corneal thicknesscorrectionBy combining with the cornealthickness test eye (Tool No. SP-2000P-09), the configuration is thesame as the above corneal thick-ness test eye.
R-SP3000P-1-0601-01
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