Nidek Medical RT-5100 User manual

MRT10*RDA001A/E
Page
Table of Contents
§
1INTRODUCTION ........................................................................................................1-1
§
2SAFETYPRECAUTIONS ............................................................................................2-1
§
3TROUBLESHOOTING...............................................................................................3-1
§
4SUB TOUBLE SHOOTING .........................................................................................4-1
4.1Initializationscreendoesnot appear onthe CB display. ...............................................4-1
4.1.1Backlight of theLCD moduledoes not lightup...................................................4-2
4.2Initializationisnotcompletedproperly. ........................................................................4-3
4.2.1 The batteryAS does not move to the right and left. ............................................4-4
4.2.2 The R diskAS does not turn..............................................................................4-5
4.2.3 The LdiskAS does not turn. .............................................................................4-7
4.2.4ThePD andconvergenceof theMBis notinitialized properly. ............................4-9
4.2.5Therightdisk oftheMB isnotinitialized properly.............................................4-10
4.2.6Theleft diskofthe MBis notinitializedproperly............................................... 4-11
4.3An error message appears. .......................................................................................4-12
4.3.1“Error 01: Communication ErrorCB-MB” appears..........................................4-13
4.3.2“Error 11: CommunicationErrorCB-RB” appears. ..........................................4-14
4.3.3 “No appointment data!!” appears. ...................................................................4-14
4.3.4 “Chart doesn’t work.” appears. .......................................................................4-15
4.3.5“Setupdata isinitialized.”appears....................................................................4-16
4.3.6 “CF card -- Read Error!!” appears. ................................................................4-16
4.3.7 “CF card -- Write Error!!” appears. ................................................................4-16
4.3.8 “CF card -- File Error!!” appears. ...................................................................4-16
4.3.9 “CF card -- File not found!!” appears..............................................................4-16
4.3.10 “CF card -- Card not found!!” appears. ........................................................4-16
4.3.11 “No data!!” appears. .....................................................................................4-16
4.4The instrument cannot beoperated with the controlbox.............................................4-17
4.4.1The instrumentcannotbe operatedwiththe switches. .......................................4-17
4.4.2The instrumentcannotbe operatedby turningthe dial. ......................................4-18
4.4.3The instrument cannot beoperated with thetouch-screen panel. .......................4-18
4.5 The compact flash memory card cannot be used........................................................4-19
4.6 The IC card cannot be used......................................................................................4-19
4.7 The printer does not print..........................................................................................4-20
4.8The communicationwiththe autorefractometers orlensmeter cannotbedone. ...........4-21
4.9 The chart projector does not work as specified with the control box. .........................4-22

MRT10*RDA001A/E Page
§
5REMOVING COVERS ................................................................................................ 5-1
5.1 Covers of the main body.............................................................................................5-1
5.1.1 Face shields R and L .........................................................................................5-1
5.1.2 Rear covers ......................................................................................................5-1
5.1.2.1 Rear cover R ........................................................................................5-1
5.1.2.2 Rear cover L.........................................................................................5-1
5.1.3 Front covers .....................................................................................................5-2
5.1.3.1 Front cover R .......................................................................................5-2
5.1.3.2 Front cover L........................................................................................5-2
5.1.4 Knob S AS .......................................................................................................5-2
5.1.5 Upper cover J ...................................................................................................5-3
5.1.6 Upper rear cover ..............................................................................................5-3
5.1.7 Upper cover F ..................................................................................................5-3
5.2 Control box covers.....................................................................................................5-4
5.2.1 Rear coverAS ..................................................................................................5-4
5.2.2 EMC cover.......................................................................................................5-4
§
6REPLACEMENT..........................................................................................................6-1
6.1 BatteryAS .................................................................................................................6-1
6.2 DiskAS .....................................................................................................................6-2
6.2.1 R diskAS ( ) .................................................................................................6-2
6.2.2 L diskAS ( ) ..................................................................................................6-2
6.3 Boards R and L..........................................................................................................6-2
6.3.1 Board R............................................................................................................6-2
6.3.2 Board L ............................................................................................................6-3
6.4 Plates.........................................................................................................................6-3
6.4.1 Plate FR ( )....................................................................................................6-3
6.4.2 Plate FL ( ) ....................................................................................................6-3
6.4.3 Plate BR ( ) ...................................................................................................6-4
6.4.4 Plate BL ( ) ....................................................................................................6-4
6.5 Sensor 1 ....................................................................................................................6-4
6.5.1 Sensor 1R.........................................................................................................6-4
6.5.2 Sensor 1L .........................................................................................................6-5
6.6 Frames.......................................................................................................................6-5
6.6.1 Frame R ( )....................................................................................................6-5
6.6.2 Frame L ( ) ....................................................................................................6-5
6.7 PD motors .................................................................................................................6-5
6.7.1 PD motor R ......................................................................................................6-5
6.7.2 PD motor L ......................................................................................................6-6
6.8 CON motors..............................................................................................................6-6
6.8.1 CON motor R ..................................................................................................6-6
6.8.2 CON motor L...................................................................................................6-6
6.9 PI sensor boards ........................................................................................................6-7
6.9.1 CON sensor .....................................................................................................6-7

MRT10*RDA001A/E
Page
6.9.1.1 CON sensor of the upper brace R .........................................................6-7
6.9.1.2 CON sensor of the upper brace L .........................................................6-7
6.9.2 PD sensors .......................................................................................................6-8
6.9.2.1 PD sensor of the upper brace R.............................................................6-8
6.9.2.2 PD sensor of the upper brace L .............................................................6-8
6.10 Motors and sensors of frame R.................................................................................6-9
6.10.1 Motor SCA ....................................................................................................6-9
6.10.1.1 Motor for the S2 disk..........................................................................6-9
6.10.1.2 Motor for the C2 disk .........................................................................6-9
6.10.1.3 Motor for the S1 disk........................................................................6-10
6.10.1.4 Motor for theA1 disk ( )................................................................6-10
6.10.1.5 Motor for the C1 disk ( ) ............................................................... 6-11
6.10.1.6 Motor for theA2 disk ( )................................................................ 6-11
6.10.2 Motor PCA ..................................................................................................6-12
6.10.2.1 Motor for the CA disk ( ) ...............................................................6-12
6.10.2.2 Motor for the P1 disk ( ) ................................................................6-12
6.10.2.3 Motor for the P2 disk ( ) ................................................................6-12
6.10.3 Sensor 2 .......................................................................................................6-13
6.10.3.1 Sensor for the CA disk ......................................................................6-13
6.10.3.2 Sensor for the P1 disk .......................................................................6-13
6.10.3.3 Sensor for the P2 disk .......................................................................6-13
6.11 Motors or sensors of frame L..................................................................................6-14
6.11.1 Motor SCA ..................................................................................................6-14
6.11.1.1 Motor for the S2 disk ........................................................................6-14
6.11.1.2 Motor for the C2 disk .......................................................................6-14
6.11.1.3 Motor for the S1 disk ........................................................................6-15
6.11.1.4 Motor for theA1 disk ( ) ................................................................6-15
6.11.1.5 Motor for the C1 disk ( )................................................................6-16
6.11.1.6 Motor for theA2 disk ( ) ................................................................6-16
6.11.2 Motor for the CAdisk ...................................................................................6-17
6.11.2.1 Motor for the CAdisk ( ) ...............................................................6-17
6.11.2.2 Motor for the P1 disk ( ) ................................................................6-17
6.11.2.3 Motor for the P2 disk ( ) ................................................................6-17
6.11.3 Sensor 2 .......................................................................................................6-18
6.11.3.1 Motor for the CAdisk ( ) ...............................................................6-18
6.11.3.2 Motor for the P1 disk ( ) ................................................................6-18
6.11.3.3 Motor for the P2 disk ( ) ................................................................6-18
6.12 VD LEDunit ..........................................................................................................6-19
6.12.1 VD LED unit of frame R................................................................................6-19
6.12.2 VD LED unit of frame L ................................................................................6-19
6.13 L motor CPU board ...............................................................................................6-20
6.14 L motor driver board ..............................................................................................6-20
6.15 R motor CPU board...............................................................................................6-20

MRT10*RDA001A/E
6.16 R motor driver board..............................................................................................6-20
6.17 MB main board......................................................................................................6-21
6.18 LCDAS ................................................................................................................6-21
6.19 CB main board.......................................................................................................6-22
6.20 Key I/F board........................................................................................................6-22
6.21 Link board .............................................................................................................6-23
6.22 Rotary encoder ......................................................................................................6-23
6.23 LCD I/F board.......................................................................................................6-24
6.24Inverter ..................................................................................................................6-24
6.25 Color LCD module ................................................................................................6-25
6.26 RB main board .......................................................................................................6-26
6.27 RB I/F board .........................................................................................................6-26
§
7ADJUSTMENT.............................................................................................................7-1
7.1EnteringtheInformation/Adjustmentscreen .................................................................7-1
7.2Adjustment mode of the MB .......................................................................................7-1
7.2.1Adjustmentofthe initialpulseforthe MB ...........................................................7-1
7.2.2Lenscleaning mode ...........................................................................................7-2
7.2.3Adjustment mode for gear .................................................................................7-2
7.3Chart selection ...........................................................................................................7-3
7.4Chart adjustment ........................................................................................................7-3
7.5Mirroradjustment.......................................................................................................7-3
7.6 Parameter setting .......................................................................................................7-4
7.7Printingtheadjustmentvalue .......................................................................................7-4
7.8 Resetting the setup data ..............................................................................................7-4
7.9CommunicationsettingwithotherbrandAR/LM .........................................................7-5
7.10Adjustingtheclock ...................................................................................................7-5
7.11 Updating thesoftware ...............................................................................................7-6
7.12 Clearing theAR/LM data..........................................................................................7-6
7.13Touch-screen panelcalibration ..................................................................................7-7
§
8REFERENCE................................................................................................................ 8-1
8.1Wiringdiagram ...........................................................................................................8-1
8.2 Connector cables .......................................................................................................8-2
8.3 Error messages...........................................................................................................8-5
8.4 Parameters .................................................................................................................8-6

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MRT10*RDA001A/E
§1 INTRODUCTION
• This service manual provides information for after-sales service for the NIDEK refractor, model:
RT-5100.
• Refer to the RT-5100 Operator’s Manual and Parts List.
• Specifications are subject to change without notice for improvement. Refer to the Technical
Bulletins (T.B.) for important changes.
• In case the device cannot be repaired according to the procedures described in this manual,
please report the serial number and details of the symptom or symptoms.

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MRT10*RDA001A/E

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MRT10*RDA001A/E
§2 SAFETY PRECAUTIONS
<General precautions>
• Only the service persons who are accustomed to using tools, and have a deep knowledge of
this instrument are allowed to repair the instrument.
• Proceed right work in accordance with the procedure.
If not, accidents or failure of the instrument may result.
• When performing maintenance works, turn off the power switch, and disconnect the power
cord from the wall outlet unless necessary.
• Never wipe the covers, etc. using an organic solvent such as a paint thinner.
The surface may be ruined, and as a result, the appearance of the instrument will be impaired.
<Maintenance precautions>
• In case of instrument malfunction, turn the power switch off after checking the symptom.
• Never drop parts or screws inside the instrument, nor bump it against the surrounding objects.
• Have storage cases ready to ensure the loss of the removed screws or parts.
• In screwing or unscrewing, use a proper tool for the screw
• After loosening the screws fixed by a thread-locking adhesive, and tightening them again, be
sure to apply the thread-locking adhesive to them.
• After replacing parts, make sure that they are fixed securely before turning on the power.
• If you observe strange odors or smoke being emitted from the instrument, immediately turn
off the instrument and locate the causes after disconnecting the power cord from the wall-
outlet.
If the instrument is continuously powered under such abnormal conditions, a fire, electric
shock or total loss of the instrument may result.
• Referring to “8.1 Wiring diagram” and “8.2 Connector cables”, check cables for the following:
1. Connectors are connected securely.
2. No contact failure occurs after re-connection of connectors.
3. No failure in soldering
Do not pull the cables strongly. It may cause a breaking of wire.
Never work with wet hands. It may result in an electric shock or instrument malfunction.
<Adjustment precautions>
• Perform adjustment work in a vibration-free, flat and stable place.
Tilted floor or vibratory place may affect a proper adjustment adversely.
• Do not use an adjustment jig for other usage described in this manual.
• Be sure to readjust the optical axis of the prism and cylinder after performing the marked ( )
procedures. The special jigs (the chart projector and the test scale for checking) are necessary
for the readjustment.

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MRT10*RDA001A/E

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MRT10*RDA001A/E
§3 TROUBLESHOOTING
Turn ON the main switch.
Does the starting screen appear on the control box?
Does any error message appear?
Can the instrument operated with the control box?
Can the IC card be used?
4.1 The starting screen does not appear on the control
box.
4.4 The instrument cannot be operated with the control
box.
4.6 The IC card cannot be used.
Yes
Yes
Yes
No
No
No
No
Does the printer print? 4.7 The printer does not print.
Yes
No
Turn OFF the main switch.
4.3 An error message appears.
Yes
Can the compact flash memory card be used? 4.5 The compact flash memory card cannot be used.
Yes
No
Is the initialization completed properly?
Yes
4.2 Initialization is not completed properly.
No
Can the communication between the autorefractometer
and lensmeter be done? 4.8 The communication between the autorefractometer and lensmeter cannot be done.
No
Yes
Does the chart projector operate as specified with the
control box? 4.9 The chart projector does not operate as specified with the control box.
No
Yes

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MRT10*RDA001A/E

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MRT10*RDA001A/E
§4 SUB TROUBLESHOOTING
4.1 Initialization screen does not appear on the CB display.
Is the voltage between A1-B3 pins of connector J3 on
the RB I/F board (34085-BA22) DC+15V?
Does cable CB break?
Is the voltage between A1-A6 pins of connector P14 on
the LINK board (34085-BA14) DC+15V?
Does the backlight of the color LCD module light up?
Is cable LCD3 (34085-E305) disconnected from the
connector?
Replace cable CB.
Replace the LINK board (34085-BA14). (See 6.21.)
4.1.1 Backlight of the color LCD module does not light
up.
Reconnect cable LCD3 (34085-E305).
Yes
No
Yes
No
Yes
Yes
No
Yes
No
Is the voltage between 1-3 pins of connector J3 on the
CB main board (34085-BA11) DC+3.3V? Replace the CB main board (34085-BA11). (See 6.19.)
Yes
No
Replace the RB I/F board (34085-BA22). (See 6.27.)
No
Obtain the specified voltage.Is the power supply voltage within the specified range?
Is the voltage between 1-2 pins of connector P8 on the
RB I/F board (34085-BA22) AC24±3V? Replace the RB (34085-5000).
Yes
No
Yes
No
Does the fuse of the RB blow? Replace the fuse of the RB.
No
Yes
Is the voltage setting of the RB correct? Set the correct voltage of the RB.
Yes
No

4 - 2
MRT10*RDA001A/E
Replace the color LCD module (42203-E016).
(See 6.25.)
Is the symptom relieved?
Completion
Replace the CB main board (34085-BA11). (See 6.19.)
Yes
No
Is the voltage between 1-3 pins of connector J33 on the
LCD I/F board (34085-BA13) DC+3.3V? Replace the LCD I/F board (34085-BA13). (See 6.23.)
Yes
No
4.1.1 Backlight of the LCD module does not light up.
Replace the CB main board (34085-BA11). (See 6.19.)
Is the voltage between 5-7 pins of connector J12 on the
CB main board (34085-BA11) DC+15V?
Does cable LCD2 (34085-E304) break?
Is the voltage between 1-2 pins of connector J35 on the
LCD I/F board (34085-BA13) DC+12V?
Is cable BL (34085-EA11) disconnected from the
connector?
Replace the inverter (42203-E17). (See 6.24.)
Is the symptom relieved?
Completion
Replace cable LCD2 (34085-E304).
Replace the LCD I/F board (34085-BA13). (See 6.23.)
Replace the CB main board (34085-BA11). (See 6.19.)
No
Yes
No
Yes
No
Yes
Yes
No
No
Reconnect cable BL (34085-EA11).
Yes

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MRT10*RDA001A/E
4.2 Initialization is not completed properly.
4.2.1 The battery AS (34085-1000) does not move to
the right and left.
Does the battery AS (34085-1000) move to the right
and left?
Does the R disk AS (34085-1100) turn?
Does the L disk AS (34085-1200) turn?
4.2.2 The R disk AS (34085-1100) does not turn.
4.2.3 The L disk AS (34085-1200) does not turn.
Yes
Yes
No
Yes
No
No
4.2.4 The PD of the MB and convergence is not
initialized properly.
Is the PD of the MB and the convergence initialized
properly?
Is the right disk of the MB initialized properly?
Is the left disk of the MB initialized properly?
Completion
4.2.5 The right disk of the MB is not initialized
properly.
4.2.6 The left disk of the MB is not initialized properly.
Yes
Yes
No
Yes
No
No
Check the wiring of cable MB and replace it.
Is the voltage between A1-A4 pins of connector J1 on
the MB main board (34085-BA01) DC+5V, and the
voltage between A12-A8 pins DC+16.5V?
No
Yes

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MRT10*RDA001A/E
4.2.1 The batteryAS does not move to the right and left.
Replace the PD motor R (34085-2510). (See 6.7.1.)
Does motor CON (34085-E013) of the PD motor R
(34085-2510) break?
Does motor CON (34085-E013) of the CON motor R
(34085-2520) break?
Is the voltage as described below when disconnecting
each connector on the MB main board (34085-BA01)?
1-2 pins of connector J8 : DC+5V
1-2 pins of connector J9 : DC+5V
1-2 pins of connector J10 : DC+5V
1-2 pins of connector J11 : DC+5V
Does the PI sensor board (34085-BA08) for PD of the
upper brace R (34085-2500) break?
Does the PI sensor board (34085-BA08) for CON of
the upper brace R (34085-2500) break?
Replace the CON motor R (34085-2520). (See 6.8.1.)
Replace the MB main board (34085-BA01). (See 6.17.)
Replace the PI sensor board (34085-BA08) for PD of
the upper brace R (34085-2500). (See 6.9.2.1.)
Replace the PI sensor board (34085-BA08) for CON of
the upper brace R (34085-2500). (See 6.9.1.1.)
Yes
Yes
No
No
Replace the MB main board (34085-BA01). (See 6.17.)
Yes
No
Replace the PD motor L (34085-2610). (See 6.7.2.)
Does motor CON (34085-E013) of the PD motor L
(34085-2610) break?
Does motor CON (34085-E013) of the CON motor L
(34085-2620) break? Replace the CON motor L (34085-2620). (See 6.8.2.)
Yes
No
Yes
No
Yes
No
Yes
No
Does the PI sensor board (34085-BA08) for PD of the
upper brace L (34085-2600) break?
Does the PI sensor board (34085-BA08) for CON of
the upper brace L (34085-2600) break?
Replace the PI sensor board (34085-BA08) for PD of
the upper brace L (34085-2600). (See 6.9.2.2.)
Replace the PI sensor board (34085-BA08) for CON of
the upper brace L (34085-2600). (See 6.9.1.2.)
Yes
No
Yes
No

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MRT10*RDA001A/E
4.2.2 The R disk AS does not turn.
Replace the MB main board (34085-BA01). (See 6.17.)
Is the voltage of connector J3 on the R motor CPU
board (34085-BA04) as described below?
A3-A1 pins :DC+5V
A4-A1 pins :DC+16.5V
Is the voltage of connector P1 on the R motor CPU
board (34085-BA04) as described below?
1-3 pins :DC+5V
11-1 pins :DC+16.5V
Is the voltage as described below when disconnecting
each connector of the R motor CPU board (34085-
BA04)?
1-2 pins of connector J4 : DC+5V
1-2 pins of connector J5 : DC+5V
1-2 pins of connector J6 : DC+5V
1-2 pins of connector J7 : DC+5V
Does motor SCA (34085-1310) for S2 disk R break?
Replace the R motor CPU board (34085-BA04).
(See 6.15.)
Replace the R motor CPU board (34085-BA04).
(See 6.15.)
Yes
No
Yes
No
Yes
No
No
Replace motor SCA (34085-1310) for the S2 disk R.
(See 6.10.1.)
Yes
Does motor SCA (34085-1310) for S1 disk R break?
No
Replace motor SCA (34085-1310) for the S1 disk R.
(See 6.10.3.)
Yes
Does motor SCA (34085-1310) for C2 disk R break?
No
Replace motor SCA (34085-1310) for the C2 disk R.
(See 6.10.1.2.)
Yes
Does motor SCA (34085-1310) for C1 disk R break?
No
Replace motor SCA (34085-1310) for the C1 disk R.
(See 6.10.1.5.)
Yes
Does motor SCA (34085-1310) for A1 disk R break?
No
Replace motor SCA (34085-1310) for the A1 disk R.
(See 6.10.1.4.)
Yes
Does motor SCA (34085-1310) for A2 disk R break?
No
Replace motor SCA (34085-1310) for the A2 disk R.
(See 6.10.16.)
Yes

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MRT10*RDA001A/E
Replace the R motor driver board (34085-BA05).
(See 6.16.)
Is the symptom relieved?
Completion
Replace the R motor CPU board (34085-BA04).
(See 6.15.)
Yes
No
Does motor PCA (34085-1320) for the P1 disk R
break?
No
Replace motor PCA (34085-1320) for the P1 disk R.
(See 6.10.2.2.)
Yes
Does motor PCA (34085-1320) for the P2 disk R
break?
No
Replace motor PCA (34085-1320) for the P2 disk R.
(See 6.10.2.3.)
Yes
Is the voltage between 3-2 pins of connector J4 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for CA disk R is shaded. :5V
Sensor 2 for CA disk R is not shaded. :0V
Replace sensor 2 (34085-1330) for the CA disk R.
(See 6.10.3.1.)
Is the voltage between 3-2 pins of connector J5 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for P1 disk R is shaded. :5V
Sensor 2 for P1 disk R is not shaded. :0V
Replace sensor 2 (34085-1330) for the P1 disk R.
(See 6.10.3.2.)
Is the voltage between 3-2 pins of connector J6 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for P2 disk R is shaded. :5V
Sensor 2 for P2 disk R is not shaded. :0V
Replace sensor 2 (34085-1330) for the P2 disk R.
(See 6.10.3.3.)
Yes
Yes
Yes
No
No
No
Does motor PCA (34085-1320) for the CA disk R
break?
No
Replace motor PCA (34085-1320) for the CA disk R.
(See 6.10.2.1.)
Yes

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MRT10*RDA001A/E
4.2.3 The L disk AS does not turn.
Replace the MB main board (34085-BA01). (See 6.17.)
Is the voltage of connector J3 on the L motor CPU
board (34085-BA02) as described below?
A3-A1 pins :DC+5V
A4-A1 pins :DC+16.5V
Is the voltage of connector P1 on the L motor CPU
board (34085-BA02) as described below?
1-3 pins :DC+5V
11-1 pins :DC+16.5V
Is the voltage as described below when disconnecting
each connector on the L motor CPU board (34085-
BA02)?
1-2 pins of connector J4 :DC+5V
1-2 pins of connector J5 :DC+5V
1-2 pins of connector J6 :DC+5V
1-2 pins of connector J7 :DC+5V
Does motor SCA (34085-1310) for the S2 disk L
break?
Replace the L motor CPU board (34085-BA02).
(See 6.13.)
Replace the L motor CPU board (34085-BA02).
(See 6.13.)
Yes
No
Yes
No
Yes
No
No
Replace motor SCA (34085-1310) for the S2 disk L.
(See 6.11.1.1.)
Yes
Does motor SCA (34085-1310) for the S1 disk L
break?
No
Replace motor SCA (34085-1310) for the S1 disk L.
(See 6.11.1.3.)
Yes
Does motor SCA (34085-1310) for the C2 disk L
break?
No
Replace motor SCA (34085-1310) for the C2 disk L.
(See 6.11.1.2.)
Yes
Does motor SCA (34085-1310) for the C1 disk L
break?
No
Replace motor SCA (34085-1310) for the C1 disk L.
(See 6.11.1.5.)
Yes
Does motor SCA (34085-1310) for the A1 disk L
break?
No
Replace motor SCA (34085-1310) for the A1 disk L.
(See 6.11.1.4.)
Yes
Does motor SCA (34085-1310) for the A2 disk L
break?
No
Replace motor SCA (34085-1310) for the A2 disk L.
(See 6.11.1.6.)
Yes

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MRT10*RDA001A/E
Replace the L motor driver board (34085-BA03).
(See 6.14.)
Is the symptom relieved?
Completion
Replace the L motor CPU board (34085-BA02).
(See 6.13.)
Yes
No
Does motor PCA (34085-1320) for the PA disk L
break?
No
Replace motor PCA (34085-1320) for the P1 disk L.
(See 6.11.2.2.)
Yes
Does motor PCA (34085-1320) for the P2 disk L
break? No
Replace motor PCA (34085-1320) for the P2 disk L.
(See 6.11.2.3.)
Yes
Is the voltage between 3-2 pins of connector J4 on the
L motor CPU board (34085-BA02) as described
below?
Sensor 2 for the CA disk R is shaded. :5V
Sensor 2 for the CA disk R is not shaded :0V
Replace sensor 2 (34085-1330) for the CA disk L.
(See 6.11.3.1.)
Is the voltage between 3-2 pins of connector J5 on the
L motor CPU board (34085-BA02) as described
below?
Sensor 2 for the P1 disk is shaded. :5V
Sensor 2 for the P1 disk is not shaded. :0V
Replace sensor 2 (34085-1330) for the P1 disk L.
(See 6.11.3.2.)
Is the voltage between 3-2 pins of connector J6 on the
L motor CPU board (34085-BA02) as described
below?
Sensor 2 for the P2 disk R is shaded. :5V
Sensor 2 for the P2 disk R is not shaded. :0V
Replace sensor 2 (34085-1330) for the P2 disk L.
(See 6.11.3.3.)
Yes
Yes
Yes
No
No
No
Does motor PCA (34085-1320) for the CA disk L
break?
No
Replace motor PCA (34085-1320) for the CA disk L.
(See 6.11.2.1.)
Yes

4 - 9
MRT10*RDA001A/E
4.2.4 The PD and convergence of the MB is not initialized properly.
Set the MB initial pulse to a proper one. (See 7.2.1.)
Is the MB initial pulse the same as the one on the label
attached to the upper rear cover (34085-2900)?
Turn OFF the main switch. Does the driving gear of
the step-out motor turn smoothly when turning it by
hand?
Adjust the engagement of the PD gear that does not
turn smoothly.
No
Yes
No
Does the PI sensor board (34085-BA08) for PD of the
upper brace R (34085-2500) break?
Does the PI sensor board (34085-BA08) for CON of
the upper brace R (34085-2500) break?
Replace the PI sensor board (34085-BA08) for PD of
the upper brace R (34085-2500). (See 6.9.2.1.)
Replace the PI sensor board (34085-BA08) for CON of
the upper brace R (34085-2500). (See 6.9.1.1.)
Yes
Replace the MB main board (34085-BA01). (See 6.17.)
Yes
No
Yes
No
Does the PI sensor board (34085-BA08) for PD of the
upper brace L (34085-2600) break?
Does the PI sensor board (34085-BA08) for CON of
the upper brace L (34085-2600) break?
Replace the PI sensor board (34085-BA08) for PD of
the upper brace R (34085-2600). (See 6.9.2.2.)
Replace the PI sensor board (34085-BA08) for CON of
the upper brace L (34085-2600). (See 6.9.1.2.)
Yes
No
Yes
No

4 - 10
MRT10*RDA001A/E
4.2.5 The right disk of the MB is not initialized properly.
Set the MB initial pulse to a proper one. (See 7.2.1.)
Is the MB initial pulse the same as the one on the label
attached to the upper rear cover (34085-2900)?
Turn OFF the main switch. Does the driving gear of
the step-out motor turn smoothly when turning it by
hand?
Adjust the gear engagement of the disk, axis and such
that do not turn smoothly.
Yes
No
Yes
No
Completion
Is the symptom relieved? No Replace sensor 1R (34085-1180). (See 6.5.1.)
Yes
Is the voltage between 3-2 pins of connector J4 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for the CA disk R is shaded. :5V
Sensor 2 for the CA disk R is not shaded. :0V
Replace the sensor 2 (34085-1330) for the CA disk R.
(See 6.10.3.1.)
Is the voltage between 3-2 pins of connector J5 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for the P1 disk R is shaded. :5V
Sensor 2 for the P1 disk R is not shaded. :0V
Replace the sensor 2 (34085-1330) for the P1 disk R.
(See 6.10.3.2.)
Is the voltage between 3-2 pins of connector J6 on the
R motor CPU board (34085-BA04) as described
below?
Sensor 2 for the P2 disk R is shaded. :5V
Sensor 2 for the P2 disk R is not shaded. :0V
Replace sensor 2 (34085-1330) for the P2 disk R.
(See 6.10.3.3.)
Yes
Yes
Yes
No
No
No