Nidek Medical ConfoScan4 User manual

ConfoScan4
Service Manual

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CS4 SERVICE MANUAL Page 2of 72
Manual information:
NAME: ConfoScan4 SERVICE MANUAL
REVISION: 07
DATE: May 22, 2012
REFERENCE: HW revision 2.4.0 (serial number >4501)
NOTE: ConfoScan4 and CS4 are synonymous

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CS4 SERVICE MANUAL Page 3of 72
Table of content
1SafetyPrecautions___________________________________________________________8
1.1Generalprecautions__________________________________________________________8
1.2Maintenanceprecaution_______________________________________________________8
1.3Handlingtheopticalsystemparts_______________________________________________9
1.4Adjustmentprecautions_______________________________________________________9
1.5Troubleshooting______________________________________________________________9
2PositionoftheCS4Covers____________________________________________________11
3EmbeddedPC______________________________________________________________12
4MotioncontrolBoard_______________________________________________________13
5Removethefuses__________________________________________________________14
6Removetherearcover(CS4‐ST050)____________________________________________15
6.1Removetherearmetallicinternalcover_________________________________________16
7Removetheelectronicboard&fan____________________________________________17
7.1Removethefan_____________________________________________________________17
7.2RemovetheVGAtoPALBoardCS4‐EL042________________________________________18
8Removethesignalinletplate_________________________________________________20
9Removethepowerswitchandthepowerinlet___________________________________21
10EmbeddedPCAssemblyCS4‐AP073____________________________________________23
10.1Removetheframegrabberboard(CS4‐EL044)____________________________________24
10.2RemovetheEmbeddedPC(CS4‐EL074)__________________________________________25
11RemovetheJoystickassemblyCS4‐AP036_______________________________________28
11.1Removethejoystickassemblystepone__________________________________________31
11.2Removethejoystickassemblysteptwo_________________________________________32
11.3Removethejoystickassemblystepthree________________________________________33
11.4RemovetheJoystickcontrolboard(CS4‐EL010)___________________________________35
12RemovetheDisplayLCDpanel________________________________________________36
13Removetheserialboard(CS4‐EL035)___________________________________________39
14Removetheopticalheadcovers_______________________________________________43
14.1Removetheopticalheadcovers________________________________________________43
14.2Removingtheopticalheadbottomcover(CS4‐ST054)______________________________44

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14.3Removingtheopticalheadlampfan____________________________________________45
15Removetheopticalhead____________________________________________________46
15.1Opticalhead________________________________________________________________47
16Removingthechinrestandtheforeheadrest____________________________________49
17Removingthechinrestsensorswitches_________________________________________50
18RemovetheplasticcoverCS4‐ST051___________________________________________52
19Removetherobotassembly__________________________________________________53
19.1Removetherobotplasticcover(CS4‐ST055)______________________________________53
19.2RemovetheRobotAssembly__________________________________________________54
20Removethemotioncontrolboard(COM‐EL005&COM‐EL006)______________________58
21RemovetheprocessorboardmountingplateCS4‐ST121.___________________________61
22Removingthepowersupply(CS4‐EL050)________________________________________62
23HowtoupdateembeddedSoftware___________________________________________66
23.1Warning___________________________________________________________________66
23.2Installationsteps____________________________________________________________66
23.3Firststep___________________________________________________________________66
23.4Secondstep________________________________________________________________67
23.5Thirdstep__________________________________________________________________67
23.6Fourthstep_________________________________________________________________68
23.7Fifthstep__________________________________________________________________68
23.8Seventhstep_______________________________________________________________69
23.9Eighthstep_________________________________________________________________69
24Cablelist__________________________________________________________________70
25Boardlist_________________________________________________________________71
26Assemblylist______________________________________________________________72

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CS4 SERVICE MANUAL Page 5of 72
Table of figures
Figure1Overviewofthedevice_____________________________________________________________________11
Figure2SecondOverviewofthedevice______________________________________________________________11
Figure3EmbeddedPC____________________________________________________________________________12
Figure4MotionBoard____________________________________________________________________________13
Figure5Fusesholder_____________________________________________________________________________14
Figure6CS4‐ST050_______________________________________________________________________________15
Figure7RearCoverCS4‐ST050Removed_____________________________________________________________15
Figure8CS4‐ST123_______________________________________________________________________________16
Figure9Fanscrews______________________________________________________________________________17
Figure10ElectronicsfanCS4‐EL034_________________________________________________________________17
Figure11VGAtoPALboardCS4‐EL042_______________________________________________________________18
Figure13Barscrews_____________________________________________________________________________19
Figure14Signalinletplatescrews___________________________________________________________________20
Figure15SignalinletplateCS4‐AS066_______________________________________________________________20
Figure16Powerswitchmetalcover_________________________________________________________________21
Figure17Powerinletmetalcover___________________________________________________________________21
Figure18powerinletplateremoved_________________________________________________________________22
Figure19CS4‐AP073_____________________________________________________________________________23
Figure20Framegrabbervideocableandscrews_______________________________________________________24
Figure21EmbeddedPCcables_____________________________________________________________________25
Figure22EmbeddedPCfixingscrews________________________________________________________________26
Figure23Cablesremoving_________________________________________________________________________27
Figure24FlashcardCS4‐EL076_____________________________________________________________________27
Figure25CS4‐ST056______________________________________________________________________________28
Figure26Screwsposition__________________________________________________________________________28
Figure27Screwn°4______________________________________________________________________________30
Figure28Joystickscrew___________________________________________________________________________31
Figure29LCDpanelscrew_________________________________________________________________________32
Figure30Cabledisconnection______________________________________________________________________32
Figure31DisconnectionoftheLCD__________________________________________________________________33
Figure32Joystickcables__________________________________________________________________________34
Figure33JoystickassemblyCS4‐AP036_______________________________________________________________34
Figure34Joystickboardconnectors_________________________________________________________________35
Figure35Joystickboard___________________________________________________________________________35
Figure36Displayscrews__________________________________________________________________________36
Figure37Emergencybutton_______________________________________________________________________36
Figure38Groundcable___________________________________________________________________________37
Figure39LCDpanelbuttonsconnector_______________________________________________________________37
Figure40LCDLVDSshield&connector_______________________________________________________________38
Figure41LCDInverterpowercable__________________________________________________________________38
Figure42Serialboardscrews______________________________________________________________________39
Figure43LCDPanel______________________________________________________________________________40
Figure44Emergencybutton_______________________________________________________________________40
Figure45LCDpanelbuttonsflatcable/connector______________________________________________________41
Figure46Serialboardscrews______________________________________________________________________41
Figure47Serialboard____________________________________________________________________________42
Figure48serialboard____________________________________________________________________________42

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Figure49SerialboardCS4‐EL035___________________________________________________________________42
Figure50Opticalhead____________________________________________________________________________43
Figure51Opticalhead____________________________________________________________________________44
Figure52Screws________________________________________________________________________________45
Figure53Headlampfanscrews____________________________________________________________________45
Figure54Controlboard___________________________________________________________________________46
Figure55Opticalhead____________________________________________________________________________47
Figure56Servicetool_____________________________________________________________________________48
Figure57Galvanometer__________________________________________________________________________48
Figure58ChinrestCS4‐AP035______________________________________________________________________49
Figure59CableCS4‐WI103________________________________________________________________________49
Figure60Chinrest_______________________________________________________________________________50
Figure61SwitchesMP1‐EL028_____________________________________________________________________51
Figure62CS4‐ST051______________________________________________________________________________52
Figure63Coverremoved__________________________________________________________________________52
Figure64CS4‐ST055______________________________________________________________________________53
Figure65Robotside______________________________________________________________________________53
Figure66Robotassembly_________________________________________________________________________54
Figure67Robotscrews___________________________________________________________________________55
Figure68Robotcables____________________________________________________________________________55
Figure69Motionboard___________________________________________________________________________56
Figure70RobotCS4‐AP002________________________________________________________________________57
Figure71Chassis________________________________________________________________________________57
Figure72Removetheconnectors___________________________________________________________________58
Figure73Metalboxscrews________________________________________________________________________58
Figure74MotionboardCOM‐EL006_________________________________________________________________59
Figure75Motionboardscrews_____________________________________________________________________59
Figure76BoardPlate_____________________________________________________________________________60
Figure77Cylindricalspacers_______________________________________________________________________60
Figure78Electronicsmountingplatescrews__________________________________________________________61
Figure79EmbeddedPCmountingplate(removed)_____________________________________________________61
Figure80Powersupplymaininputvoltageconnector___________________________________________________62
Figure81Powersupplygroundingbarremoval________________________________________________________63
Figure82Powersupply___________________________________________________________________________64
Figure83Powersupply___________________________________________________________________________64
Figure84Powersupply___________________________________________________________________________65
Figure85Powersupply___________________________________________________________________________65

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CS4 SERVICE MANUAL Page 7of 72
INTRODUCTION
This service manual provides information for after sales service of the ConfoScan4 (also
called CS4). For proper after sales service, it is necessary to understand this manual
thoroughly before the servicing. Refer to the ConfoScan4 Operator’s manual & Service
Manual Annex together with this manual. Specifications for improvement are subject to
change without notice. In case the equipment cannot be repaired according to the procedure
described in this manual, please contact us, reporting the serial number and the details of the
symptom.

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1Safety Precautions
1.1 General precautions
Servicing should be performed only by NIDEK trained personnel.
Perform all servicing according to the procedure described in this manual. Failure to do
so may cause unexpected accident or malfunction.
Be sure to turn the power off and unplug the power cord during servicing, unless there is
different instruction.
1.2 Maintenance precaution
Take countermeasures against static electricity before servicing.
If malfunction occurs, check the symptom and turn the power off
Do not lose or drop removed parts inside the CS4.
Take care not to bump the CS4.
Prepare storage cases for removed screws and parts to ensure against loss.
Use suitable tools to screw or unscrew the screws.
Apply thread locking adhesive to the screws which have been loosened and tightened
again.
After the replacement, check that all parts are fixed in their original positions securely
and turn the power on.
If the CS4 produces smoke or strange odors, immediately turn off the system, and
disconnect the electrical plug from the outlet
Usage of the system under such abnormal conditions may cause fire or electric shock.
Do not perform servicing with wet hands. Doing so could cause electric shock or
malfunction.
In “1.5”, when checking a break in a cable, also check the following according to the
wiring diagram and connector cable.
(1) Proper crimping
(2) Proper contact by connecting and disconnecting connectors
(3) Proper soldering
Do not yank the cables with excessive force. Doing so could cause breakage.

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1.3 Handling the optical system parts
Do not disassemble or repair optical system parts.
If the optical system parts need repairing, return the whole device to NIDEK.
The person, who assembles, adjusts, or repairs the optical system will be responsible for
the final result.
ONLY the following parts in the optical system are replaceable:
1. Camera CS3-HE701
2. Target Led Board CS4-EL009
3. Lamp Fan CS4-EL046
4. W Control Board CS4-EL027
5. Optical Head Board Assembly CS4-AP068
1.4 Adjustment precautions
Adjust the CS4 on a horizontal and stable surface. Failure to do so could hinder proper
adjustment.
Do not touch the optical parts such as mirrors or lenses.
If the cover must be opened for electrical operation check or reparation, ensure against
electric shock.
1.5 Troubleshooting
To the beginning of every service, perform these controls:
Connect the power cord and turn on the equipment.
Check if the system configurations, or the settings, are changed.
Check if the software has updated.
Check the electronic fan board.
Check the head lamp fan
Perform in sequence, the operations and the checks indicated in “Action”. The Nidek
Technologies Service can help you, during the check procedures. Before the replacement
procedures, contact the Nidek Technologies Service.

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CS4 SERVICE MANUAL Page 10 of 72
Symptom analysis Action
The equipment does not operate
and the power switch does not
light.
Check the power voltage of the wall outlet
Check the fuses.
Check the power switch of equipment.
The equipment does not operated
while the power switch light is
turned on.
Check the power supply.
Check the power filter
Check the processor board.
Check the display assembly.
The equipment is turned on and
the display works properly. The
joystick does not start the exam.
Check the immediate stop button (if
activated, reset it).
Check the motion control board.
Check the processor board.
Check the presence of the front lens
The equipment is turned on, and
the display works properly. If you
push on any buttons of the
keyboard or the joystick, the
equipment does not operate.
Turn off the equipment.
Wait a few minutes.
Turn on and retry the operation.
If the problem persist.
(1)Check the processor board.
(2)Check the joystick assembly.
(3)Check the joystick control board.
(4)Check the serial board.
The equipment is turned on, and
the speaker emits a sound “beep”,
but the display doesn’t work
properly.
Check the display assembly.
Check the processor board.
The equipment works correctly,
but the speaker does not emit the
“beep” sound at the end of the
exam recording.
Check the speaker and the connector.
Check the buzzer of processor board.
The equipment works correctly
but the images aren’t of good
quality.
Clean the lenses 40X and 20X , only with
soft cloth and distilled water. The coating is
very fragile.
The head does not move correctly
or move roughly, or move with
noise.
Check the robot assembly.
Check the photocell of mechanical parts
An error message appears on the
display. Contact the Service Department of Nidek Technologies.

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2Position of the CS4 Covers
Here below is shown the position of the device covers. The covers must be removed and
mounted in a specific order. Follow the instructions.
Figure 1 Overview of the device
Figure 2 Second Overview of the device

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3Embedded PC
In this picture it is shown the Embedded PC CS4-EL074.
Figure 3 Embedded PC
Power plug
Serial interface card
CS4-EL035
Power switchs
CS4-AS065
USB, Lan, VOut
CS4-AS066
Processor Card
(Embedded PC)
CS4-EL074

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4Motion control Board
Here below is shown the inner motion components of the device.
Figure 4 Motion Board

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5Remove the fuses
Open the fuses holder, under the power inlet, and remove the fuses.
Figure 5 Fuses holder

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6Remove the rear cover (CS4-ST050)
Unscrew the 4 screws and remove the external cover.
Figure 6 CS4-ST050
Figure 7 Rear Cover CS4-ST050 Removed

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6.1 Remove the rear metallic internal cover
Unscrew the 4 screw and remove the rear metallic internal cover (CS4-ST123).
Figure 8 CS4-ST123

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7Remove the electronic board & fan
If you have not already done, perform the procedure no.:
6 Removing the rear external plastic cover
6.1 Removing the rear metallic internal cover
7.1 Remove the fan
Unscrew the 4 screws on the CS4-ST123, than you are able to remove the fan.
Figure 9 Fan screws
Electronic Fan removed CS4-EL034
Figure 10 Electronics fan CS4-EL034

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7.2 Remove the VGA to PAL Board CS4-EL042
If you have not already done, perform the procedure 6, & 6.1.
Disconnect the cables P1, P2, P3, from the board; unscrew the 4 nuts “N” than remove the
board.
Figure 11 VGA to PAL board CS4-EL042
Don’t loosen or remove the 2 screws of rear cover bars.

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Figure 13 Bar screws
BAR SCREW
BAR

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8Remove the signal inlet plate
If you have not already done, perform the procedure 6, & 6.1.
Disconnect the signal cables than unscrew the 2 screws back to the sheet metal.
Figure 14 Signal inlet plate screws
Remove the signal inlet plate CS4-AS066.
Figure 15 Signal inlet plate CS4-AS066