Nidek CV-24000 Service manual

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Page 1

NIDEK

OPHTHALMIC SURGICAL SYSTEM

[PHACOEMULSIFICATION • VITREOUS SURGERY]

Model CV-24000

SERVICE MANUAL

December 21, 2001

XCV4**RDA001B/E Total 142 pages

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Table of Contents

1 CAUTIONS .................................................................................................................. 1-1

1.1 Cautions in using the manual ................................................................................... 1-1

1.2 Cautions in repairing ................................................................................................ 1-1

2 TROUBLESHOOTING .............................................................................................. 2-1

3 SUB-TROUBLESHOOTING ..................................................................................... 3-1

3.1 Pilot lamp does not illuminate.................................................................................. 3-1

3.1.1 Check of P.S. board ......................................................................................... 3-2

3.2 Nothing appears on screen ....................................................................................... 3-3

3.2.1 Communication error of screen ....................................................................... 3-4

3.3 Back light can not be adjusted.................................................................................. 3-4

3.4 Touch panel does not work ....................................................................................... 3-5

3.5 Seat switch does not work ........................................................................................ 3-6

3.6 Remote control does not work ................................................................................. 3-7

3.7 Sounds do not come out ........................................................................................... 3-8

3.8 Volume can not be adjusted ...................................................................................... 3-8

3.9 Irrigation pole does not move by irrigation UP/DOWN switch ............................... 3-9

3.10 Printer does not work normally ............................................................................ 3-11

3.11 Memory inside of main body does not work correctly ......................................... 3-12

3.12 Memory card does not work correctly .................................................................. 3-12

3.13 Cassette test is not passed .................................................................................... 3-13

3.14 Cassette can not be removed ................................................................................ 3-14

3.15 SYSTEM (cataract) test is not passed .................................................................. 3-16

3.15.1 SINGLE CASSETTE .................................................................................. 3-16

3.15.2 ANT DUAL CASSETTE ............................................................................ 3-20

3.16 US test is not passed ............................................................................................. 3-24

3.17 DIA test is not passed ........................................................................................... 3-24

3.18 SYSTEM (vitrectomy) test is not passed ............................................................. 3-25

3.18.1 ANT/POST DUAL CASSETTE ................................................................. 3-25

3.18.2 POST DUAL CASSETTE .......................................................................... 3-29

3.19 PPL test is not passed ........................................................................................... 3-32

3.20 Foot switch does not work ................................................................................... 3-33

3.21 Irrigation does not move correctly ....................................................................... 3-35

3.22 Aspiration does not work correctly ...................................................................... 3-36

3.23 US oscillation is not performed correctly............................................................. 3-38

3.24 Diathermy output is abnormal .............................................................................. 3-39

3.25 Cutter does not work (for using built-in compressor) .......................................... 3-40

3.25.1 Check of air pressure piping for cutter (only for ANTERIOR) .................. 3-41

3.25.2 Check of air pressure piping for cutter (for both of ANT/POST) ............... 3-42

Page

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3.26 Cutter does not work (in the case of using external air pressure) ........................ 3-44

3.27 Scissors do not work correctly ............................................................................. 3-46

3.27.1 Check of air pressure piping for using built-in compressor ........................ 3-46

3.27.2 Check of air pressure piping for using external air pressure ....................... 3-48

3.28 FGX does not work correctly ............................................................................... 3-50

3.29 Illumination does not work correctly ................................................................... 3-52

3.30 Check of power (P.S. board)................................................................................. 3-54

4 REPLACEMENT ......................................................................................................... 4-1

4.1 Replacement of top cover ......................................................................................... 4-1

4.2 Replacement of rear cover ........................................................................................ 4-1

4.3 Replacement of lower part of left cover ................................................................... 4-2

4.4 Replacement of lower part of right cover ................................................................. 4-2

4.5 Replacement of front cover ...................................................................................... 4-3

4.6 Replacement of inverter ........................................................................................... 4-3

4.7 Replacement of display board .................................................................................. 4-4

4.8 Replacement of main board...................................................................................... 4-4

4.9 Replacement of limit switch ..................................................................................... 4-5

4.10 Replacement of driving (AC) motor ...................................................................... 4-6

4.11 Replacement of control unit ................................................................................... 4-7

4.12 Replacement of P.S. board...................................................................................... 4-8

4.13 Replacement of US unit ......................................................................................... 4-9

4.14 Replacement of compressor ................................................................................. 4-10

4.15 Replacement of printer ......................................................................................... 4-10

4.16 Replacement of noise filter .................................................................................. 4-11

4.17 Replacement of power switch .............................................................................. 4-11

4.18 Replacement of transformer ................................................................................. 4-12

4.19 Replacement of BU CONNECT board (BA06) ................................................... 4-12

4.20 Replacement of VR board (BA21) ....................................................................... 4-13

4.21 Replacement of RECEIVER board (BA02) ......................................................... 4-13

4.22 Replacement of speaker ....................................................................................... 4-14

4.23 Replacement of irrigation pole UP/DOWN switch (EA56) ................................. 4-15

4.24 Replacement of PRINT/FEED switch (BA29)..................................................... 4-15

4.25 Replacement of POLE CONTROL board (BA07) ............................................... 4-16

4.26 Replacement of microswitch (SW56, 58) ............................................................ 4-16

4.27 Replacement of EJECT switch board (BA29) ..................................................... 4-17

4.28 Replacement of TUBE SENS board (BA28) ....................................................... 4-17

4.29 Replacement of DRIVER board (BA05) .............................................................. 4-18

4.30 Replacement of CASSETTE SENS board (BA27) .............................................. 4-18

4.31 Replacement of FGX/SCIS board (BA08) ........................................................... 4-19

4.32 Replacement of ILL/SCIS SELECT board (BA09) ............................................. 4-19

4.33 Replacement of solenoid valve ............................................................................ 4-20

4.34 Replacement of pressure sensor for control (EA86) ............................................ 4-21

4.35 Replacement of pressure sensor (EA84) .............................................................. 4-22

4.36 Replacement of condenser (C1) for AC motor (driving motor) ........................... 4-22

4.37 Replacement of VACUUM SENS board (BA26) ................................................ 4-23

4.38 Replacement of CARD board (BA24) ................................................................. 4-23

4.39 Replacement of valve unit (1 set and 2 sets) ........................................................ 4-24

4.40 Replacement of pressure sensor for FGX output (EA88) .................................... 4-24

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4.41 Replacement of seat switch .................................................................................. 4-25

4.42 Replacement of load cell unit (EA31) .................................................................. 4-25

4.43 Replacement of aspiration motor (EA39) ............................................................ 4-26

4.44 Replacement of pilot lamp ................................................................................... 4-27

5 ADJUSTMENT ............................................................................................................ 5-1

5.1 Transformer output (check at secondary side) ......................................................... 5-1

5.2 Output voltage check of P.S. board (BA04) ............................................................. 5-1

5.3 Output voltage check of BU CONNECT board (BA06) .......................................... 5-1

5.4 Output voltage check of MAIN board (BA03)......................................................... 5-2

5.5 Output voltage check of DRIVER board (BA05) .................................................... 5-2

5.6 Output voltage check of FGX/SCIS board (BA08) .................................................. 5-2

5.7 Output voltage check of US unit (E100) .................................................................. 5-2

5.8 Voltage adjustment of FGX/SCIS board (BA08) ..................................................... 5-3

5.9 Output voltage check of DISPLAY board (BA02) ................................................... 5-3

5.10 Adjustment of irrigation height detection potentiometer ....................................... 5-4

5.11 Adjustment of control unit ..................................................................................... 5-4

5.12 Adjustment of FGX/SCIS mode ............................................................................ 5-5

5.13 Adjustment of pinch valve ..................................................................................... 5-6

5.14 Adjustment of load cell positioning ....................................................................... 5-6

5.15 Adjustment of aspiration motor (EA39) positioning.............................................. 5-7

6 WIRING DIAGRAM ................................................................................................... 6-1

6.1 Block diagram .......................................................................................................... 6-1

6.2 Display unit diagram ................................................................................................ 6-2

6.3 Main unit diagram .................................................................................................... 6-3

6.4 P.S. unit diagram....................................................................................................... 6-4

6.5 Driver unit diagram .................................................................................................. 6-5

6.6 BU CONNECT unit diagram ................................................................................... 6-6

6.7 POLE CONTROL unit diagram ............................................................................... 6-7

6.8 FGX/SCIS unit diagram ........................................................................................... 6-8

6.9 ILL/FGX SELECT unit diagram .............................................................................. 6-9

7 TOOLS AND SOLVENTS .......................................................................................... 7-1

7.1 Tools ......................................................................................................................... 7-1

7.2 Solvents .................................................................................................................... 7-1

8 ERROR CODE ............................................................................................................. 8-1

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CAUTIONS

1.1 Cautions in using the manual

• This manual is for the service work of the Phacoemulsification System, Model CV-24000.

• Before using this manual, thoroughly read and understand the operator’s manual for CV-24000.

• This manual does not contain the contents written in the operator’s manual.

• The specifications are subject to change without notice for improvement. For the important change, see the technical bulletin issued for the change concurrently.

1.2 Cautions in repairing

• For repairing, make sure to wear rubber gloves to protect from the infection of bacteria.

• Never touch the things which are used for surgery and not yet sterilized.

• When checking the motion, ensure to use the sterilized handpiece.

• Repairing the system is prohibited except the personnel who received the training.

• For maintenance, turn OFF the power and disconnect the socket from the power unless this manual specifies “Turn ON the power”.

• Prepare a case for removed screws and parts not to miss or drop them into the system.

• For loosening and tightening threadlocker-applied screws, apply the threadlocker again.

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Turn ON the power.

TROUBLESHOOTING

Is an error indicated?

ＹＥＳ

Does the pilot lamp illuminate?

ＹＥＳ

Does an operation screen appear?

ＹＥＳ

Can the back light be adjusted by the knob on the rear panel?

ＹＥＳ

Does the touch panel work?

ＮＯ

Check the indicated error.

ＮＯ

3.1 Pilot lamp does not illuminate

ＮＯ

3.2 Nothing appears on screen

ＮＯ

3.3 Back light can not be adjusted

ＮＯ

3.4 Touch panel does not work

ＹＥＳ

Does the set switch work?

ＹＥＳ

Does the remote control work?

ＹＥＳ

Do sounds come out of speaker?

ＹＥＳ

ＮＯ

3.5 Seat switch does not work

ＮＯ

3.6 Remote control does not work

ＮＯ

3.7 Sounds do not come out

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2 - 2

Can the volume of speaker be adjusted by the volume control on the rear panel?

ＹＥＳ

Does the irrigation pole move by irrigation pole UP/DOWN switch on the rear panel?

ＹＥＳ

Does the printer work normally?

ＹＥＳ

Is data stored or read to the main body correctly?

ＹＥＳ

Is data stored or read to memory card correctly?

ＮＯ

3.8 Volume can not be adjusted

ＮＯ

3.9 Irrigation pole does not move by irrigation pole UP/DOWN switch

ＮＯ

3.10 Printer does not work normally

ＮＯ

3.11 Memory inside of main body does not work correctly

ＮＯ

3.12 Memory card does not work correctly

ＹＥＳ

Does the system start a cassette test and pass it by inserting cassette?

ＹＥＳ

Can the cassette be removed by EJECT switch while the cassette is inserted?

ＹＥＳ

Start the SYSTEM (cataract) test. Is it passed?

ＹＥＳ

Start the US test. Is it passed?

ＹＥＳ

ＮＯ

3.13 Cassette test is not passed

ＮＯ

3.14 Cassette can not be removed

ＮＯ

3.15 SYSTEM (cataract) test is not passed

ＮＯ

3.16 US test is not passed

Start the DIA test. Is it passed?

ＹＥＳ

ＮＯ

3.17 DIA test is not passed

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2 - 3

Does the foot switch work?

ＹＥＳ

Does the irrigation work correctly?

ＹＥＳ

Does the aspiration work correctly?

ＹＥＳ

Is US oscillation performed correctly?

ＹＥＳ

Is the diathermy output correctly?

ＮＯ

3.20 Foot switch does not work

ＮＯ

3.21 Irrigation does not move correctly

3.22 Aspiration does not work correctly

ＮＯ

3.23 US oscillation is not performed correctly

ＮＯ

3.24 Diathermy output is abnormal

ＹＥＳ

Does the cutter (ANT) work correctly?

ＹＥＳ

Is it a surgical instrument for cataract and vitrectomy?

Surgical instrument for cataract and vitrectomy

ＹＥＳ

Select vitrectomy surgery screen.

Start the SYSTEM (vitrectmy) test. Is it passed?

ＹＥＳ

ＮＯ

3.25 Cutter (ANT) does not work

ＮＯ

Is the power correct?

ＹＥＳ NO

End

ＮＯ

3.18 SYSTEM (vitrectomy) test is not passed

3.30 Check of power (P.S.board)

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2 - 4

Start the PPL test. Is it passed?

ＹＥＳ

Start the DIA test. Is it passed?

ＹＥＳ

Does the cutter work correctly?

ＹＥＳ

Do scissors work correctly?

ＹＥＳ

Does FGX work correctly?

ＮＯ

3.19 PPL test is passed

ＮＯ

3.17 DIA test is passed

ＮＯ

3.26 Cutter (POST) does not work

3.27 Scissors do not work correctly

ＮＯ

3.28 FGX does not work correctly

ＹＥＳ

Does the illumination work correctly?

ＹＥＳ

Is the power correct?

ＹＥＳ

End

ＮＯ

3.29 Illumination does not work correctly

ＮＯ

3.30 Check of the power (P.S. board)

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SUB-TROUBLESHOOTING

3.1 Pilot lamp does not illuminate

Is power voltage proper? Voltage 100Ｖ／115Ｖ／230Ｖ

ＹＥＳ

Is the power code connected correctly?

ＹＥＳ

Is the fuse blown? Disconnect the power cord from a wall outlet for checking the fuse.

ＮＯ

Are voltages between the power input terminals of the noise filter and the power switch (turned OFF) same as the power voltage?

ＹＥＳ

Turn ON the power switch. Is the power voltage supplied to the transformer? (Check by TB1, a terminal block.)

ＮＯ

ＹＥＳ

ＮＯ

Use a proper power voltage. Usable input voltage is written on the rating plate.

Connect the power cord.

Repalce the fuse with the new one. Disconnect the power cord from a wall outlet for checking the fuse.

Failure of the noise filter is a probable cause. Replace it with the new one. (See 4.16.)

Replace the power switch with the new one. (See 4.17.)

ＹＥＳ

Is the secondary side voltage of transformer normal? Check the secondary side voltage with no load.

Between YEL and YEL : AC33V±10% Between ORN and ORN : AC33V±10% Between BLK and BLU : AC100V±10% Between GRY and BLU : AC66V±10% Between VIO and BLU : AC33V±10%

ＹＥＳ

Is the voltage on the P.S. board (BA04) normal? See 3.1.1 Check of P.S. board.

ＹＥＳ

Disconnect the P618 from the BU CONNECT board (BA06). Is the voltage between 1st and 2nd pins of J618 +5V?

ＹＥＳ

ＮＯ

Replace the transformer with the new one. (See 4.18.)

ＮＯ

Replace the P.S. board (BA04) with the new one. (See 4.12.)

ＮＯ

Failure of the BU CONNECT board (BA06). Replace it with the new one. (See 4.19.)

Failure of the pilot lamp. Replace it with the new one. (See 4.44.)

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3.1.1 Check of P.S. board

Is the input voltage to the board normal? Disconnect terminals from the terminal block (TB401) on the board and check voltages. Between YEL and YEL : AC35V±10% Between ORN and ORN : AC35V±10%

ＹＥＳ

Connect terminals disconnected from the terminal block (TB401). Disconnect all connectors.

Is the input voltage to the board normal? Check voltages of terminal block (TB401) on the board. Between 1 and 2 : AC35V±10% Between 3 and 4 : AC35V±10%

Check the input voltage of transformer. If it is

ＮＯ

normal, replace the transformer with the new one. (See 4.17.)

Failure of the P.S. board (BA04) is a probable

ＮＯ

cause. Replace the board with the new one. (See 4.12.)

3 - 2

ＹＥＳ

Check voltages between GND and each TP while connecting only TB401. Is voltages on the P.S. board (BA04) normal? TP2 ： +12V (+11.5 ～ +12.5V） TP3 ： +28V (+27.5 ～ +29.0V） TP4 ： -28V (-27.5 ～ -29.0V） TP6 ： +12V (+11.9 ～ +12.1V） TP7 ： -12V (-11.9 ～ -12.1V） TP8 ： +6V (+5.0 ～ +6.0V） TP9 ： +5V (+4.8 ～ +5.2V） TP10 ： +24V (+22.0 ～ +26.0V）

ＹＥＳ

Connect all removed connectors and check voltages between GND and each TP. Is voltages on the P.S. board (BA04) normal? TP2 ： +12V (+11.5 ～ +12.5V） TP3 ： +28V (+27.5 ～ +29.0V） TP4 ： -28V (-27.5 ～ -29.0V） TP6 ： +12V (+11.9 ～ +12.1V） TP7 ： -12V (-11.9 ～ -12.1V） TP8 ： +6V (+5.0 ～ +6.0V） TP9 ： +5V (+4.8 ～ +5.2V） TP10 ： +24V (+22.0 ～ +26.0V）

ＮＯ

Failure of the P.S. board (BA04) is a probable cause. Replace it with the new one. (See 4.12.)

Not only the failure of P.S. board (BA04) but

ＮＯ

other failures of board or unit are probable causes. Check other symptoms.

ＹＥＳ

The P.S. board (BA04) is normal.

Page 13

3.2 Nothing appears on screen

3 - 3

Does the irrigation pole move up and down by the irrigation pole UP/DOWN switch on the rear

ＮＯ

3.2.1 Communication error of screen

panel?

ＹＥＳ

Can the error beep be heard? 3.2.1 Communication error of screen

ＮＯ

Does the back light illuminate?

ＹＥＳ

The screen becomes black if the back light does not illuminate.

ＮＯ

Disconnect the connector (P201) from the DISPLAY board and check the voltage. Is the voltage normal?

Between 1 and 2 (0V) of P201 : +5V Between 3 and 4 (0V) of P201 : +12V

ＹＥＳ

ＮＯ

Failure of the power is a probable cause. Check the cable and the P.S. board. (See 3.1.1 Check of P.S. board.)

Are J205 (DISPLAY board) and CN1 (inverter) connected by a cable?

ＹＥＳ

Are CN2 and 3 of inverter connected to the LCD back light?

ＹＥＳ

Failure of the LCD back light or the inverter. Replace either of them with the new one. (See 4.6.)

Is the cable between the LCD and the display board connected?

ＹＥＳ

Failure of the LCD or the display board are probable causes. Replace either of them with the new one. (See 4.7.)

ＮＯ

Connect them.

ＮＯ

Connect them.

ＮＯ

Connect them.

Page 14

3.2.1 Communication error of the screen

Turn OFF the dip switch (SW1) on the MAIN board and turn ON the power again.

3 - 4

Is an error indicated? Check the indicated error.

ＮＯ

Is the flat cable connected to the main body correctly?

MAIN board (P304) － DRIVER board (P502) DRIVER board (P503) － DRIVER board (P202)

ＹＥＳ

Failure of the MAIN board or the DISPLAY board are probable causes. Replace either of them with the new one. (See 4.7 and 4.8.)

ＹＥＳ

Connect the flat cable correctly.

3.3 Back light can not be adjusted

Does the brightness of back light change by turning the back light control knob on the rear panel?

ＹＥＳ

Normal

ＮＯ

Does the voltage of TP7 (BACKLIGHT) change by turning the back light control knob?

ＹＥＳ

Does the voltage of TP9 change by turning the back light control knob?

ＹＥＳ

Failure of the inverter or the LCD back light are probable causes. Replace either of them with the new one. (See 4.6.)

Failure of cables among back light control

ＮＯ

volume, the VR board and the DISPLAY board. Replace the VR board or the cable with the new one.

ＮＯ

Failure of the DISPLAY board. Replace it with the new one. (See 4.7.)

Page 15

3.4 Touch panel does not work

3 - 5

Does the touch panel work normally? Is there no torn, worn or dented part on the

ＮＯ

Replace the LCD unit with the new one.

surface?

ＹＥＳ

ＮＯ

Is PJ204 connected correctly? Connect it correctly.

ＹＥＳ

Turn OFF the power to check.

ＮＯ

Is the resistance between TP2 and 3 several kΩ?

ＹＥＳ

Is the resistance between TP5 and 6 several kΩ?

ＹＥＳ

Failure of the touch panel is a probable cause. Replace the LCD unit with the new one.

ＮＯ

Failure of the touch panel is a probable cause. Replace the LCD unit with the new one.

Is the resistance between TP1 and 6 more than

10 kΩ? Does it change to several kΩ by pressing

the touch panel?

ＹＥＳ

Is the resistance between TP3 and 4 more than

10 kΩ? Does it change to several kΩ by pressing

the touch panel?

ＹＥＳ

The touch panel is probably normal. Replace the DISPLAY board with the new one. (See 4.7.)

ＮＯ

Failure of the touch panel is a probable cause. Replace the LCD unit with the new one.

ＮＯ

Failure of the touch panel is a probable cause. Replace the LCD unit with the new one.

Page 16

3.5 Seat switch does not work

ＮＯ

Does the touch panel work?

ＹＥＳ

3 - 6

Failure of the DISPLAY board or other units. Replace the DISPLAY board or check other items. (See 4.7.)

Does a mode change or the beep sound by operating the switch on the seat switch? If a volume is at low level, the beep can not be heard.

ＮＯ

Is the connection terminal of seat switch connected to the connector (J206) on the DISPLAY board?

ＹＥＳ

Replace the seat switch with the new one. Is it possible to operate by the seat switch?

ＹＥＳ

The cause was failure of the seat switch.

ＹＥＳ

ＮＯ

Normal. Refer to the operator's manual and check the operating procedures.

Connect the terminal of seat switch to the connector.

Failure of the DISPLAY board. Replace it with the new one. (See 4.7.)

Page 17

3.6 Remote control does not work

Failure of DISPLAY board or the other units.

ＮＯ

Does the touch panel work?

ＹＥＳ

Is the power of remote control turned ON by pressing the power switch of remote control?

ＹＥＳ

Are codes of remote control and RC of the main body same?

Replace the DISPLAY board or check the other items. (See 4.7.)

Replace batteries of remote control with the new

ＮＯ

one. If the power is not turned ON even replacing batteries, it shows failure of remote control itself.

Use a same cord for remote control and RC of the main body.

ＮＯ

The cord for remote control is set by the dip switch in batteries of remote control. The cord for the main body is set on the CUSTOM screen.

3 - 7

ＹＥＳ

Are there any other infrared light on the photoreceptor of the display unit?

ＮＯ

Is the cable of RECEIVER board connected to J210 on the DISPLAY board?

ＹＥＳ

Connect the photoreceptive signal between R5 and R6 on the DISPLAY board to the oscilloscope. Does the photoreceptor receive remote control signal and input the signal to the oscilloscope?

ＹＥＳ

Failure of the DISPLAY board. Replace it with the new one. (See 4.7.)

ＹＥＳ

ＮＯ

Eliminate the infrared light.

Connect the cable.

Failure of the remote control or the RECEIVER board on the display unit are probable causes. Replace either of them with the new one. (See 4.21.)

Page 18

3.7 Sounds do not come out

3 - 8

Is the volume control knob at proper position? No sounds can be heard if the knob is turned to the lowest level.

ＹＥＳ

Can the beep sound be heard by pressing switches?

ＮＯ

Is the cable from speaker connected to J308 on the MAIN board?

ＹＥＳ

Is the resistance between 1st and 2nd pins of

P308 connector of speaker 7 to 8Ω?

ＹＥＳ

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

ＮＯ

Turn the volume control knob to proper position.

ＮＯ

Connect the cable.

ＮＯ

Failure of speaker. Replace it with the new one. (See 4.22.)

Is sound output set ON? Check the sound output setting by VOICE on the CUSTOM screen.

ＹＥＳ

Input sound data from the sound card on the service screen. Do sounds become normal?

ＹＥＳ

End

3.8 Volume can not be adjusted

Does the voltage of TP8 (VOLUME) on the DISPLAY board change by turning the volume control knob?

ＹＥＳ

ＮＯ

Set the sound setting to ON.

ＮＯ

Failure of the MAIN board. (See 4.8.)

ＮＯ

Failure of the VR board. Replace it with the new one. (See 4.20.)

Failure of the volume control circuit on the MAIN board is a probable cause. Replace the MAIN board with the new one. (See 4.8.)

Page 19

3 - 9

3.9 Irrigation pole does not move by irrigation UP/DOWN

switch

ＮＯ

Does the irrigation pole move up and down by the LCD touch panel?

ＹＥＳ

Disconnect P310 from the MAIN board and check switch operation. Is switch contact turned ON or OFF correctly by operating the irrigation pole UP/DOWN switch?

ＹＥＳ

Failure of the MAIN board. Replace it with the new one.

Is the limit switch (micro switch) on the upper side or the lower side of the irrigation pole turned ON?

ＮＯ

ＹＥＳ

Failure of the irrigation pole UP/DOWN switch. Replace it with the new one. (See 4.23.)

The irrigation pole does not move since it comes to the limit position. Check the limit switch or adjust the pole position. (See 4.9.) Moreover, the pole can not move since the upper side or lower side of the irrigation pole is bitten in some cases.

Is the signal of limit switch of the irrigation pole turned ON? ＭＡＩＮ board UP LIMIT SW：IC20-2 pin 0V=ON, 5V=OFF DOWN LIMIT SW ：IC20-3 pin 0V=ON, 5V=OFF

ＮＯ

Is the indication of irrigation height within the working range?

ＹＥＳ

Is the control signal output by pressing the irrigation pole UP/DOWN switch? ＭＡＩＮ board UP SW ：IC21-19 pin 0V=ON､5V=OFF DOWN SW ：IC20-18 pin 0V=ON､5V=OFF ＢＵＣＯＮＮＥＣＴ board UP SW ：IC2-12 pin 0V=ON､12V=OFF DOWN SW ：IC2-11 pin 0V=ON､12V=OFF

ＹＥＳ

Ａ

ＹＥＳ

ＮＯ

Failure of the limit switch is a probable cause. Check the limit switch or the signal line.

The irrigation pole moves up and down only within the working range. Ajdust the potentiometer if the height position is not correct. (See 5.10.)

Failure of the MAIN board or the BU CONNECT board are probable causes. Replace the board with the new one. (See 4.8. and 4.19.)

Page 20

3 - 10

Ａ

Is AC100V supplied to the POLE CONTROL board? Check the voltage between 1st and 3rd pins of P712 is AC100V.

ＹＥＳ

Is the connector on the POLE CONTROL board connected correctly?

ＹＥＳ

Press the irrigation pole UP switch. Is the relay (RY1) on the POLE CONTROL board turned ON? Is the AC100V supplied between 1st and 4th pins of J706 connector?

ＹＥＳ

Press the irrigation pole DOWN switch. Is the relay (RY2) on the POLE CONTROL board turned ON? Is the AC100V supplied between 2nd and 4th pins of J706 connector?

ＮＯ

The transformer or the input power is abnormal. Check the input power or replace the transformer with the new one. (See 4.18.)

Connect it correctly.

Failure of the POLE CONTROL board is a probable cause. Replace the board with the new one. (See 4.25.)

ＹＥＳ

Does the AC motor rotate by pressing the irrigation pole UP/DOWN switch?

ＹＥＳ

Does the irrigation pole move up and down if the AC motor for the irrigation pole rotate?

ＹＥＳ

Normal.

Failure of the AC motor.

ＮＯ

Replace the AC motor or the condenser for motor (C1) with the new one. (See 4.10 and 4.36.)

The gear or the belt of the motor may be

ＮＯ

abnormal. Check them.

Page 21

3.10 Printer does not work normally

3 - 11

Is paper loaded to the printer? Load paper to the printer.

ＮＯ

ＹＥＳ

Is it possible to print by the PRINT switch on the rear panel?

ＮＯ

Is it possible to print by the PRINT switch on the touch panel?

ＮＯ

Is the connector on the MAIN board (J312) connected correctly?

ＹＥＳ

ＮＯ

Replace the PRINT/FEED switch (BA29) or the cable (EA41) with the new one. (See 4.24.)

Connect it.

Failure of the printer, the board (BA08) or the MAIN board are probable causes. Replace the printer or the board with the new one. If the symptom is not solved, replace the MAIN board with the new one. (See 4.8. and 4.14.)

Are date and time printed correctly?

ＹＥＳ

ＮＯ

Set time on the CUSTOM screen.

Page 22

3 - 12

3.11 Memory inside of main body does not work correctly

Is the Store switch pressed to store the contents of program?

ＹＥＳ

Failure of the MAIN board or the flash memory are probable causes. Replace the board with the new one. (See 4.8.)

ＮＯ

Press the Store switch to store the program to the flash memory.

3.12 Memory card does not work correctly

Is the memory card for programming inserted? Insert the memory card for programming.

ＹＥＳ

Does the memory card operation screen appear by pressing the memory card switch?

ＹＥＳ

ＮＯ

The memory card is not recognised for use in programming. Check the memory card.

Is it possible to write to the memory card?

ＹＥＳ

Replace the memory card with the new one. Does it work normally?

ＮＯ

Is the cable between the MAIN board and the CARD board connected correctly?

ＹＥＳ

Failure of the MAIN board (BA03) or the CARD board (BA24) are probable causes. Replace the board with the new one. (See 4.8 and 4.38.)

ＮＯ

ＹＥＳ

ＮＯ

The memory card may be protected. Unprotect the card.

Breakage of the memory card is a probable cause.

Connect it correctly.

Page 23

3.13 Cassette test is not passed

ＮＯ

Insert the cassette. Does the cassette loading start?

ＹＥＳ

3 - 13

Replace the cassette with the new one. Is the cassette test passed?

ＮＯ

Does an error occur when the cassette test is finished?

ＮＯ

Normal

ＹＥＳ

Does the screen change to the cassette test by inserting the cassette?

ＮＯ

Is the continuity between 1st and 2nd pins of P515 connected to the DRIVER board turned ON from OFF by inserting the cassette?

ＹＥＳ

ＮＯ

Failure of the cassette is a probable cause.

Check the cause of error from the error code.

Failure of the microswitch (SW56) is a probable cause. Replace it or check soldering. (See 4.26.)

ＹＥＳ

Is the continuity between 1st and 2nd pins of P516 connected to the DRIVER board turned ON from OFF by inserting the cassette?

ＹＥＳ

Failure of the DRIVER board is a probable cause. Replace it with the new one. (See 4.29.)

Failure of the DRIVER board is a probable cause. Replace the board with the new one. (See 4.29.)

ＮＯ

Failure of the microswitch (SW58) is a probable cause. Replace it or check soldering. (See 4.26.)

Page 24

3.14 Cassette can not be removed

3 - 14

ＹＥＳ

Is the continuity of the cable between the DRIVER board and the EJECT switch normal?

ＹＥＳ

Does the 3rd pin of IC3 on the DRIVER board change from 5V to 0V by pressing the EJECT switch?

ＮＯ

Disconnect the P524. Does the continuity between 5th and 7th pins of P524 change by pressing the EJECT switch?

ＹＥＳ

Ｂ

Does the CASSETTE EJECT LED change from

ＹＥＳ

lighting up to blinking by pressing the EJECT siwtch?

ＮＯ

ＹＥＳ

Is the state of the poistion O indicated while the foot switch is not pressed on the screen?

ＮＯ

Replace or repair the cable.

ＮＯ

Replace the board of the EJECT switch with the new one. (See 4.27.)

Disconnect the connector of the foot switch and press the EJECT switch. Is it possible to remove the cassette?

ＹＥＳ

Failure of the foot switch.

Does the DC motor of EA38 rotate?

ＹＥＳ

Does the cassette move down?

ＹＥＳ

Are all pinch valves turned up?

ＮＯ

Do pinch valves move by replacing the unmoving valves? If there is no pinch valve to replace, connect to the connector of other pinch valve and check the operation.

ＹＥＳ

ＮＯ

ＹＥＳ

ＮＯ

Failure of the cable and the board (BU CONNECT board) between the foot switch connector and the MAIN board. (See 4.19.)

Ａ

Replace the control unit (18214-1130) with the new one. (See 4.11.)

Ｃ

Replace the pinch valve with the new one. (See 4.39.)

Page 25

3 - 15

Ａ

Does the 24V of voltage occur between 1st and 2nd pins of J513 while ejecting the cassette by the EJECT switch?

Ｃ

ＮＯ

Is DC 24V supplied to the 7th pin of P501?

Ｂ

ＹＥＳ

Is DC 5V supplied to the 1st pin of P501?

ＹＥＳ

Failure of the DRIVER board, the MAIN board or the cable between boards. Replace either of them with the new one. (See 4.8 and 4.29.)

ＹＥＳ

Failure of the DC motor (EA38) or the loading mechanism. Replace the control unit (18214-

1130) with the new one. (See 4.11.)

Failure of the power cable (EA34) to the DRIVER

ＮＯ

board, or the power. Replace the cable with the new one or check the power following the item of power. (See 3.30.)

Failure of the power cable (EA34) to the DRIVER

ＮＯ

board, or the power. Replace the cable with the new one or check the power following the item of power. (See 3.30.)

Page 26

3.15 SYSTEM (cataract) test is not passed

3.15.1 SINGLE CASSETTE

3 - 16

Does the ERROR CODE E200 No.17 appear on the screen?

Does the ERROR CODE E200 No.31 appear on the screen?

YES

Is the connection set removed during a test?

YES

Eject the cassette once. Start SYSTEM TEST again after connecting the connection set.

YES

Are each conductors of EA44 continuous?

Replace the EA44 with the new one.

Shade the each photointerrupters of BA28. Do the 2nd, 3rd and 4th pins of IC4 on the DRIVER board (BA05) change ON or OFF?

Replace the TUBE SENS board (BA28) with the new one. (See 4.28.)

Replace the DRIVER board (BA05) with the new one. (See 4.29.)

YES

Does the ERROR CODE E307 appear simultaneously?

YES

Failure of EA39 or the DRIVER board (BA05). (See 4.29.)

YES

Does the aspiration motor rotate while all pinch valves are closed?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

Select a mode on the service mode. Does the aspiration

YES

pressure change by pressing the aspiration sensor with a hand?

Is DC5V supplied to the 1st pin of J262 on the VACUUM SENS board (BA26)? (See 4.37.)

YES

Are each conductors of EA46 continuous?

Failure of EA46.

Failure of the VACUUM SENS board (BA26). (See 4.37.)

Select a mode in the service mode while the cassette is

YES

not inserted and press the load cell with a hand. Does the voltage of TP1 on the VACUUM SENS board (BA26) change?

Failure of the EA31. Replace it with the new one.

Failure of the VACUUM SENS board (BA26) or EA31. Replace or readjust either of them. (See 4.37 and 5.11.)

YES

Page 27

3 - 17

Does the ERROR CODE E200 No.32 appear on the screen?

Does the ERROR CODE E200 No.33 appear on the screen?

YES

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

YES

Does the VENT VALVE work?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

YES

Is the flow rate control of transfusion tube closed?

Is the opening for air intake of spike of transfusion tube closed?

YES

Open the opening for air intake or insert the needle. And then, perform SYSTEM TEST again.

The cassette is probably clogged. Replace the cassette with the new one.

YES

Does the ERROR CODE E200 No.34 appear on the screen?

Open the flow rate control and perform SYSTEM TEST again.

Are the aspiration line, the irrigation line,

YES

handpiece and the test chamber connected securely?

Connect the aspiration line, the irrigation line, handpiece and the test chamber securely.

YES

Does the IRR1 valve work normally?

Check the pinch valve following the item of irrigation. (See 3.21.)

The cassette is probably clogged. Replace the cassette with the new one.

YES

Page 28

3 - 18

YES

Does ERROR CODE E200 No.35 appear? Does the ASP1 valve work normally?

Check the pinch valve following the item of aspiration. (See 3.22.)

The cassette or handpiece is probably clogged.

YES

Does ERROR CODE E200 No.36 appear?

Is the connection set inserted securely?

Insert the connection set securely and perform SYSTEM TEST again.

An air leakage of cassette is a probable cause. Replace the cassette with the new one.

YES

Does ERROR CODE E200 No.42 appear?

Does the cassette loader work?

Check the control unit following the item that cassette can not be removed. (See 3.14.)

YES

Are each conductors of EA44 continuous securely?

YES

Replace the EA44 with the new one.

Failure of the CASSETTE SENS board (BA27) or the adjustment failure of the control unit. Replace the control unit or BA27, and readjust the replaced one. (See 4.11, 4.30 and 5.11.)

Page 29

3 - 19

Does the ERROR CODE E200 No.43 appear?

Does the ERROR CODE E200 No.44 appear?

YES

Does the drainage bag come to the limit?

YES

Replace the cassette with the new one.

Is the problem solved by replacing the cassette?

YES

Failure of the cassette. Readjust the control unit if the error frequently occurs. (See 4.11.)

Readjust the control unit. (See 5.11.)

YES

Does the cassette loader work?

Check the control unit following the item that cassette can not be removed. (See 3.14.)

YES

Does the ERROR CODE E210 appear?

If the switch of SYSTEM TEST can not be pressed, it means occurrence of an error. Follow the indicated error code to solve it.

YES

Are each conductors of EA44 continuous securely?

Replace the EA44 with the new one.

Failure of the CASSETTE SENS board (BA27) or adjustment failure of the control unit. Replace the control unit or BA27, and readjust the replaced one. (See 4.11, 4.30 and 5.11.)

YES

Check the ultrasound oscillation part following the item of TEST US.

Page 30

3.15.2 ANT DUAL CASSETTE

3 - 20

Does the ERROR CODE E200 No.17 appear?

Does the ERROR CODE E200 No.31 appear?

YES

Is the connection set removed during TEST?

YES

Eject the cassette once. Perform SYSTEM TEST again while connecting the connecting set.

YES

Are the each conductors of EA44 continuous?

Replace EA44 with the new one.

Shade the each photointerrupters of BA28. Does the 2nd, 3rd and 4th pins of IC4 of BA05 change to ON or OFF?

Replace BA28 with the new one. (See 4.28.)

Replace BA05 with the new one. (See 4.29.)

YES

Does ERROR CODE E307 appear simultaneously?

YES

Failure of EA39 or BA05. (See 4.29.)

YES

Does the aspiration motor rotate while the pinch valve is fully opened?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 or 3.22.)

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

Select a mode in the service mode and press the

YES

aspiration sensor with a hand. Does the aspiration pressure change?

Is DC5V supplied to the 1st of J262 of BA26?

YES

Are each conductors of EA46 continuous?

Failure of EA46.

Failure of BA26. (See 4.37.)

Select a mode without inserting a cassette and

YES

press the load cell with a hand. Does the voltage of TP1 of BA26 change?

Failure of EA31. Replace it with the new one.

Failure of BA26 or EA31. Replace or readjust either of them (See 4.37 and 5.11.)

YES

Page 31

YES

Does ERROR CODE E200 No.32 appear?

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

YES

Does ERROR CODE E200 No.33 appear? Does the VENT VALVE work?

3 - 21

YES

Does ERROR CODE E200 No.34 appear?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

YES

Is the flow rate control of transfusion tube closed?

Is the opening for air intake of spike of transfusion tube closed?

YES

Open the opening for air intake or insert the needle. And then, perform SYSTEM TEST again.

The cassette is probably clogged. Replace the cassette with the new one.

Open the flow rate control and perform SYSTEM TEST again.

Are the aspiration line, the irrigation line,

YES

handpiece and the test chamber connected securely?

Connect the aspiration line, the irrigation line, handpiece and the test chamber securely.

YES

Does the IRR1 valve work normally?

Check the pinch valve following the item of irrigation. (See 3.21.)

The cassette is probably clogged. Replace the cassette with the new one.

Page 32

3 - 22

Does ERROR CODE E200 No.35 appear? Does the ASP1 valve work normally?

YES

Check the pinch valve following the item of aspiration. (See 3.22.)

The cassette or the handpiece is probably clogged.

Are the aspiration line, the irrigation line,

YES

Does ERROR CODE E200 No.37 appear?

handpiece and the test chamber connected securely?

Connect the aspiration line, the irrigation line, handpiece and the test chamber securely.

YES

Does the IRR2 valve work normally?

Check the pinch valve following the item of irrigation. (See 3.21.)

The cassette is probably clogged. Replace the cassette with the new one.

YES

Does ERROR CODE E200 No.38 appear? Does the ASP2 valve work normally?

YES

Check the pinch valve following the item of irrigation. (See 3.22.)

The cassette or the handpiece is probably clogged.

Does ERROR CODE E200 No.42 appear? Does the cassette loader move?

YES

Check the aspiration unit following the item that cassette can not be removed. (See 3.14.)

YES

Are each conductors of EA44 continuous securely?

Replace EA44 with the new one.

Failure of BA27 or adjustment failure of the control unit. Replace the control unit or BA27 and readjust the replaced one. (See 4.11, 4.30 and 5.11.)

YES

Page 33

3 - 23

YES

Does ERROR CODE E200 No.43 appear? Does the drainage bag come to the limit?

YES

Replace the cassette with the new one.

Is the symptom solved by replacing the cassette with the new one?

YES

Failure of the cassette. Readjust the control unit if the error frequently occurs. (See 4.11.)

Readjust the control unit. (See 4.11.)

YES

Does ERROR CODE E200 No.44 appear? Does the cassette loader work?

Check the aspiration unit following the item that cassette can not be removed. (See 3.14.)

YES

Does ERROR CODE E210 appear?

If the switch of SYSTEM TEST can not be pressed, it means occurrence of an error. Follow the indicated error code to solve it.

YES

Are each conductors of EA44 continuous securely?

Replace the EA44 with the new one.

Failure of BA27 or adjustment failure of the control unit. Replace the control unit or BA27, and readjust the replaced one. (See 4.11, 4.30 and 5.11.)

YES

Check the ultrasound oscillation part following the item of TEST US.

Page 34

3.16 US test is not passed

Does the error code E210 appear?

ＹＥＳ

ＮＯ

This is not an error of US. Check SYSTEM TEST or the indicated error code.

3 - 24

Is the US tip fixed correctly?

ＹＥＳ

Replace the US handpiece with the new one and perform the US test. Is it passed?

ＮＯ

Are +5V, ±12V and ±28V on the PS board correct?

ＹＥＳ

Failure of the US unit is a probable cause. Replace it with the new one. (See 4.13.)

3.17 DIA test is not passed

ＮＯ

ＹＥＳ

ＮＯ

Fix the US tip correctly.

Failure of the US handpiece.

Failure of the power. Check the power. (See 3.30.)

Are +5V, ±12V and ±28V on the PS board correct?

ＹＥＳ

Is TP18 on the MAIN board +3.7V (

outputting diathermy in the Dia test?

ＹＥＳ

Is TP21 on the MAIN board +1.0V (±0.3V) during outputting diathermy in the Dia test?

ＹＥＳ

Failure of the US unit. Replace it with the new one. (See 4.13.)

±0.2V) during

ＮＯ

Failure of the power. Check it. (See 3.30.)

Failure of the D/A converter on the MAIN board.

ＮＯ

Replace the MAIN board with the new one. (See 4.8.)

ＮＯ

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

Page 35

3 - 25

3.18 SYSTEM (vitrectomy) test is not passed

3.18.1 ANT/POST DUAL CASSETTE (same as POST DUAL

CASSETTE using A/P setting)

Does ERROR CODE E200 No.17 appear ?

YES

Is the connection set disconnected from the cassette during TEST?

YES

EJECT the cassette once. Perform SYSTEM TEST again while connecting the connection set.

YES

Are the each conductor of EA44 continuous?

Replace the EA44 with the new one.

Shade each photointerrupters of BA28. Does the 2nd, 3rd or 4th pins of IC4 of BA05 change to ON or OFF?

Replace BA28 with the new one. (See 4.28.)

Replace BA05 with the new one. (See 4.29.)

Does ERROR CODE E200 No.31 appear ? Does ERROR CODE E307 appear simultaneously?

YES

Does the aspiration motor rotate while the pinch valve is fully closed?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

An air leakage of cassette is a probable cause. Replace it with the new one.

YES

Failure of EA39 or BA05.

Select a mode in the service mode and press the

YES

aspiration sensor with a hand. Does the aspiration pressure change?

Is the DC5V supplied to the 1st pin of BA26 J262?

YES

Are each condensers of EA46 continuous?

YES

Failure of EA46.

YES

Failure of BA26. (See 4.37.)

Select a mode in the service mode without

YES

inserting the cassette and press the load cell with a hand. Does the voltage of BA26 TP1 change?

Failure of the EA31. Replace it with the new one.

Failure of BA26 or EA31. Replace or readjust either of them. (See 4.37.)

Page 36

YES

Does ERROR CODE E200 No32 appear ?

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

YES

Does ERROR CODE E200 No.33 appear ? Does the VENT VALVE work?

3 - 26

YES

Does ERROR CODE E200 No.34 appear ?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

YES

Is the flow rate control of transfusion tube closed?

Is the opening for air intake of spike of transfusion tube closed?

YES

Open the opening for air intake or insert the needle. And then, perform SYSTEM TEST again.

The cassette is probably clogged. Replace the cassette with a new one.

Open the flow rate control and perform SYSTEM TEST again.

Are the aspiration line, the irrigation line, the

YES

handpiece and the test chamber connected securely?

Connect the aspiration line, the irrigation line, the handpiece and the test chamber securely.

YES

Does the IRR1 valve work normally?

Check the pinch valve following the item of irrigation. (See 3.21.)

The cassette is probably clogged. Replace the cassette with a new one.

Does ERROR CODE E200 No.35 appear ? Does the ASP1 valve work normally?

YES

Check the pinch valve following the item of aspiration. (See 3.22.)

The cassette or the handpiece is probably clogged.

YES

Page 37

3 - 27

Does ERROR CODE E200 No.39 appear? Does the ASP2 valve work normally?

YES

Check the pinch valve following the item of aspiration. (See 3.22.)

The cassette or the handpiece is probably clogged.

Does ERROR CODE E200 No.42 appear? Does the cassette loader work normally?

YES

Check the aspiration unit following the item that cassette can not be removed. (See 3.14.)

YES

Are each conductors of EA44 continuous?

Replace the EA44 with the new one.

YES

Failure of BA27 or adjustment failure of the control unit. Replace the control unit or BA27, and readjust the replaced one. (See 4.11, 4.30 and 5.11.)

Page 38

3 - 28

YES

Does ERROR CODE E200 No.43 appear? Does the drainage bag come to the limit?

YES

Replace the cassette with the new one.

Is the symptom solved by replacing the cassette?

YES

Failure of the cassette. Replace the control unit if the error frequently appears. (See 4.11.)

Replace the control unit with the new one. (See 4.11.)

YES

Does ERROR CODE E200 No.44 appear?

Does the cassette loader work?

Check the aspiration unit following the item that cassette can not be removed. (See 3.14.)

YES

Does ERROR CODE E210 appear?

If the switch of SYSTEM TEST can not be pressed, it means occurrence of an error. Follow the indicated error code to solve it.

YES

Are each conductors of EA44 continuous?

Replace EA44 with the new one.

Failure of BA27 or adjustment failure of the control unit. Replace the control unit or BA27 and readjust it. (See 4.11, 4.30 and 5.11.)

YES

Check the ultrasound oscillation part following the item of US TEST.

Page 39

3 - 29

3.18.2 POAT DUAL CASSETTE (only for POST DUAL

CASSETTE using PD setting)

Does ERROR CODE E200 No.17 appear ? Is the connection set disconnected during TEST?

YES

Does ERROR CODE E200 No.31 appear ?

YES

Eject the cassette once. Perform SYSTEM TEST again while connecting the connection set.

YES

Are each conductors of EA44 continuous?

Replace EA44 with the new one.

Shade each photointerrupters of BA28. Does the 2nd, 3rd or 4th pin of BA05 IC4 change to ON or OFF?

Replace BA28 with the new one. (See 4.28.)

Replace BA05 with the new one. (See 4.29.)

YES

Does ERROR CODE E307 appear simultaneously?

YES

Failure of EA39 or BA05.

YES

Does the aspiration motor rotate while the pinch valve is fully closed?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

An air leakage of cassette is a probable cause. Replace it with the new one.

Select a mode in the service mode and press the

YES

aspiration sensor with a hand. Does the aspiration pressure change?

Is DC5V supplied to the 1st pin of BA26 J262?

YES

Are each conductors of EA46 continuous?

Failure of EA46.

Failure of BA26. (See 4.37.)

Select a mode in the service mode without

YES

inserting the cassette and press the load cell with a hand. Does the voltage of BA26 TP1 change?

Failure of the EA31. Replace it with the new one.

Failure of BA26 or EA31. Replace or readjust either of them. (See 4.37 and 5.11.)

YES

Page 40

YES

Does ERROR CODE E200 No32 appear ?

An air leakage of the cassette is a probable cause. Replace the cassette with the new one.

YES

Does ERROR CODE E200 No.33 appear ? Does the VENT VALVE work?

3 - 30

YES

Does ERROR CODE E200 No.40 appear ?

Failure of the pinch valve. Check the pinch valve following the item of irrigation and aspiration. (See 3.21 and 3.22.)

YES

Is the flow rate control of transfusion tube closed?

Is the opening for air intake of spike of transfusion tube closed?

YES

Open the opening for air intake or insert the needle. And then, perform SYSTEM TEST again.

The cassette is probably clogged. Replace the cassette with the new one.

Open the flow rate control and perform the SYSTEM TEST again.

YES

Does ASP1 valve work normally?

YES

Does ERROR CODE E200 No.41 appear ?

Check the pinch valve following the item of irrigation. (See 3.22.)

The cassette is probably clogged. Replace the cassette with the new one.

YES

Does ASP2 valve work normally?

Check the pinch valve following the item of aspiration. (See 3.22.)

The cassette or the handpiece is probably clogged.

YES

Page 41

Does the aspiration pressure rise?

YES

Is the symptom loud pulsation?

Does the pinch valve work correctly?

YES

Perform SYSTEM TES again. Does the ERROR CODE E307 appear?

YES

Does the 6th pin signal of BA05 IC3 change by

YES

changing the shading condition of EA45 photointerruper?

Replace EA45 with the new one.

Readjust the position of the shading plate and the aspiration rotor, or replace the control unit with the the new one. (See 4.11.)

The handpiece or the cassette are probably

YES

clogged. Replace either of them with the new one.

3 - 31

Can the operating sound of the relevant aspiration pinch valve be heard by selecting a mode of the touch panel?

YES

Readjust the pinch valve EA30. (See 5.13.)

Does the operating voltage occur between 1st and 2nd pins of unmoving pinch valve?

YES

Replace the pinch valve EA30 with the new one. (See 4.39.)

Are voltages supplied as follows?

DC5V to the 1st pin of J501 of BA05 DC6V to the 5th pin of J501 of BA05 DC24V to the 7th pin of J501 of BA05

YES

Does the voltage between 9th pin-GND, and 6th pin-GND of IC2 change by turning ON/OFF FREE IRR in case of IRR1? Does the voltage between 2nd pin-GND, and 5th pin-GND of IC2 change by turning ON/OFF FREE IRR in case of IRR2?

YES

Replace BA05 with the new one. (See 4.29.)

Failure of BA05, E335 or BA03. (See 4.8 and 4.29.)

Failure of the power unit. Refer to the item of the power unit. (See 3.30.)

Page 42

3.19 PPL test is not passed

Does the error code E210 appear?

ＹＥＳ

ＮＯ

This is not the error of US. Check SYSTEM TEST or the indicated error code.

3 - 32

Is the US tip fixed correctly?

ＹＥＳ

Replace the US handpiece with the new one and perform the US test. Is it passed?

ＮＯ

Are +5V, +12V and +28V on the PS board correct?

ＹＥＳ

Failure of the US unit is a probable cause. Replace it with the new one. (See 4.13.)

ＮＯ

Fix the US tip correctly.

ＹＥＳ

Failure of the US handpiece.

ＮＯ

Failure of the power. Check it. (See 3.30.)

Page 43

3.20 Foot switch does not work

3 - 33

Are connectors connected to the main body securely?

YES

Does the switch of the foot pedal on the LCD screen change by operating the switch?

Does RIGHT KICK SW work?

YES

Does LEFT KICK SW work?

YES

Does RIGHT UPPER SW work?

YES

Does RIGHT LOWER SW work?

Reconnect it.

Does the continuity between 1st and 6th pins of connector change by SW operation?

YES

Does the continuity between 1st and 7th pins of connector change by SW operation?

YES

Does the continuity between 1st and 8th pins of connector change by SW operation?

YES

Does the continuity between 1st and 9th pins of connector change by SW operation?

YES

Does LEFT UPPER SW work?

YES

LEFT LOWER SW does not work.

Does the % indication of the foot pedal on the

YES

LCD screen change by operating the main pedal?

Does the continuity between 1st and 5th pins, 1st and 12th pins of the connector change by operating the pedal?

YES

Are the change point of FOOT SW POSITION and the indication of depressing rate (%) same?

YES

Does the continuity between 1st and 10th,

1st and 4th pins of connector change by SW operation?

YES

Does the continuity between 1st and 11th pins of connector change by SW operation?

YES

Is 5V output between 1st and 3rd pins at the main body side?

YES

Does the resistance value of potentiometer between 1st and 2nd pins change by operating the main pedal?

YES

Is the resistance value of potentiometer

between 1st and 3rd pins some 2kΩ?

YES

Failure of EA67, BA06, EA53 or BA03. (See 4.8 and 4.19.)

The potentiometer adjustment of EA10 FOOT PEDAL is deviated. Readjust it.

Failure of BA06 or the power supply unit. Check voltages supplied to each boards are

correct following the item of power. (See

3.30.)

Page 44

3 - 34

Is the symptom caused by the mechanical failure of the FOOT SW?

YES YES

Is it possible to repair by adjustment?

YES

Readjust it.

Replace the relevant mechanical parts or EA10 FOOT PEDAL with the new one.

Is it possible to repair by checking connection of terminal block or repairing wire breakage?

Repair the wiring.

Replace EA10 FOOT PEDAL with the new one.

Page 45

3.21 Irrigation does not move correctly

Does the irrigation solution flow?

YES

Does the irrigation solution remain in the irrigation bottle?

YES

Is the transfusion tube connected correctly?

YES

Is the opening for air intake of spike of transfusion tube opened?

YES

Is the flow rate control of transfusion tube opened?

YES

Is the three-way cock in the irrigation line opened for vitrectomy surgery?

YES

Turn ON or OFF FREE IRR on the touch panel. Can the operation sound of the pinch valve be heard?

YES

Replace the irrigation bottle with the new one.

Connect the lure connector securely.

Open the opening of air intake or insert the needle.

Open the flow rate control.

Open the three-way cock.

Does the operating voltage between 1st and 2nd pins of unmoving pinch valve occur?

Replace the pinch valve EA30 with the new one. (See 4.39.)

YES

3 - 35

Is it possible to check visually that the pinch valve open/close the irrigation line correctly?

YES

Does the FOOT SW position or ON/OFF of RREE IRR by FOOT SW work normally?

YES

Failure of cassette is a probable cause.

Are voltages supplied as follows?

DC5V to the 1st pin of J501 of BA05 DC6V to the 5th pin of J501 of BA05 DC24V to the 7th pin of J501 of BA05

YES

Does the voltage between 9th pin of BA05 IC2 and GND, 6th pin of BA05 IC2 and GND change by turning ON/OFF FREE IRR in case of IRR1? Does the voltage between 2nd pin of BA05 IC2 and GND, 5th pin of BA05 IC2 and GND change by turning ON/OFF FREE IRR in case of IRR2?

YES

Replace the BA05 with the new one. (See

4.29.)

Failure of BA05, E335 or BA03. (See 4.8 and 4.29.)

Failure of the power unit. Refer to the item of power supply unit. (See 3.30.)

Readjust the pinch valve EA30. (See 5.13.)

Failure of the FOOT SW. Refer to the item of FOOT SW. (See 3.20.)

Page 46

3.22 Aspiration does not work correctly

Does the aspiration pressure rise?

YES

Is the symptom loud pulsation?

Does the pinch valve work correctly?

YES

Perform SYSTEM TES again. Does the ERROR CODE E307 appear?

Does the 6th pin signal of BA05 IC3 change by

YES

changing the shading condition of EA45 photointerruper?

Replace EA45 with the new one.

Readjust the position of the shading plate and the aspiration rotor, or replace the control unit with the the new one. (See 4.11.)

The handpiece or the cassette are probably

YES

clogged. Replace either of them with the new one.

YES

3 - 36

Can the operating sound of the relevant aspiration pinch valve be heard by selecting a mode of the touch panel?

YES

Readjust the pinch valve EA30. (See 5.13.)

Does the operating voltage occur between 1st and 2nd pins of unmoving pinch valve?

YES

Replace the pinch valve EA30 with the new one. (See 4.39.)

Are voltages supplied as follows?

DC5V to the 1st pin of J501 of BA05 DC6V to the 5th pin of J501 of BA05 DC24V to the 7th pin of J501 of BA05

YES

Replace BA05 with the new one. (See 4.29.)

Failure of BA05, E335 or BA03. (See 4.8 and 4.29.)

Failure of the power unit. Refer to the item of the power unit. (See 3.30.)

Page 47

3 - 37

Does ERROR CODE W308 appear? Is the cassette inserted securely?

YES

Reinsert the cassette securely. If the problem is not solved, perform EJECT SYSTEM TEST.

Is there abnormality in the identification fin of connection set?

Failure of BA28, EA44 or BA05 are probable causes.

Replace the cassette with the new one.

Does the FOOT SW position work normally?

YES

Does the stepping motor rotate during aspiration?

YES

Failure of FOOT SW. Refer to the item of FOOT SW. (See 3.20.)

Are voltages supplied as follows?

DC5V to the 1st pin of J501 of BA05 DC24V to 7th pin of J501 of BA05

Failure of the stepping motor EA39 or BA05. (See 4.29.)

Is the symptom slow rising time of aspiration?

Failure of the power unit. Refer to the item of power supply unit. (See 3.30.)

YES

Does an air income to the cassette?

Exhaust an air from the cassette by performing SYSTEM TEST again.

Select a mode in the service mode without inserting the cassette, and press the load cell with a hand. Does the aspiration pressure

Is DC5V supplied to the 1st pin of J262 of BA26?

change?

YES

Are each conductors of EA46 continuous?

YES

Adjust the peristaltic pump.

Failure of EA46.

Failure of BA26. (See 4.37.)

Select a mode in the service mode without

YES

inserting the cassette and press the load cell with a hand. Does the voltage of BA26 TP1 change?

Failure of EA31. Replace it with the new one.

Failure of BA26 or EA31. Replace or readjust either of them. (See 4.37 and 5.11.)

Page 48

3.23 US oscillation is not performed correctly

ＮＯ

Does the US error appear during oscillating US?

ＹＥＳ

Is the US tip connected correctly? Connect the US its correctly.

ＹＥＳ

Replace the US handpiece with the new one. Is the US error cleared?

ＮＯ

Are +5V, ±12V and ±28V on the P.S. board correct?

ＮＯ

ＹＥＳ

Failure of the US handpiece. Replace it with the new one.

Failure of the US unit or cable failure between the US

ＹＥＳ

board and the output connector. Replace the unit or the cable with the new one.

3 - 38

Disconnect the P102 connector from the US board. Are +5V, ±12V and ±28V on the P.S. board correct?

ＮＯ

Failure of the power. Check it. (See 3.30)

Does an error appear by performing the US test?

ＮＯ

Can the foot pedal be depressed fully (100%)?

ＹＥＳ

If the US tip is not soaked in irrigation water for performing the US test, the US power is not controlled correctly. Soak the US tip in irrigation water and perform the test again. Does the US oscillation become normal?

ＮＯ

ＹＥＳ

Failure of the US unit. Replace it with the new one. (See 4.13.)

ＹＥＳ

A poor connection of the US tip is a probable cause. Check the connection of the US tip.

ＮＯ

Check the foot pedal.

ＹＥＳ

Failure of load detection during the US test. The system itself is considered as normal.

Replace the US handpiece with the new one. Does the US oscillation become normal?

ＹＥＳ

Replace the US unit with the new one. (See 4.13.)

ＮＯ

Failure of the US handpiece.

Page 49

3.24 Diathermy output is abnormal

3 - 39

Perform the Dia test. Is it passed? 3.17 Dia test is not passed

ＹＥＳ

Replace cables, forceps or pencils with the new one. Does it solve the symptom?

ＮＯ

ＹＥＳ

Replace forceps or pencils with the new one.

Is the diathermy output of the main body normal?

Connect load resistance (90Ω50W) between

diathermy output connectors. Connect probes of oscilloscope across a resistance and measure the output voltage. Setting 10 (W) : output voltage 30 (V)

ＹＥＳ

Failure of cables, forceps or pencils in use are probable causes. Replace them with the new one.

The voltage is an execution value. If there is no load resistance, check the voltage at open state. (About 60V by setting 10W)

ＮＯ

Are the output connector of diathermy and P106 on the US board continuous?

ＮＯ

Failure of the cable. Repair or replace it with the new one.

ＹＥＳ

Is the power on the US board correct? Check +5V, ±12V or ±28V on the US board.

ＹＥＳ

Is the flat cable between the MAIN board and the US board connected?

ＹＥＳ

Is TB18 on the MAIN board during diathermy output normal? Setting 20% : 2.0V

50% : 3.1V 100% : 4.4V

ＹＥＳ

Failure of the US board. Replace it with the new one. (See 4.13.)

ＮＯ

Check the power. (See 3.30.)

ＮＯ

Connect it.

ＮＯ

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

Page 50

3 - 40

3.25 Cutter does not work (for using built-in compressor)

ＹＥＳ

Does the compressor start working when the foot pedal at position 1?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins

ＹＥＳ

of J424 on the P.S. board (BA04), when the foot pedal is at the position more than 1?

ＮＯ

Is the terminal between 2nd and 3rd pins of J423 on the P.S. board (BA04) turned ON (0V), when the foot pedal is at the position more than 1?

ＮＯ

Check the connection of EA64, the BU CONNECT board (BA06), EA53 or the MAIN board (BA03).

ＹＥＳ

Replace the P.S. board (BA04) with the new one. (See 4.12.)

Does the LED on the I.P. S VALVE (EA68) blink and the solenoid valve work normally when the foot pedal position is shifted 0 ↔ 1?

ＮＯ

Does the voltage between 1st and 2nd pins of J615

change when the foot pedal position is shifted 0 ↔ 1 (0 ↔ 24V)?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Does an air come out from the Vit output connector

ＮＯ

for starting the cutter?

ＹＥＳ

Is the failure solved by replacing the cutter?

ＹＥＳ

Check the output pressure of the Vit output connector by pressure sensor. Set the cut rate to 0 cpm and start the cutter operation. Is the pressure more than 230 kPa?

ＮＯ

Can the sound of air leakage be heard from the path of air pressure piping?

ＮＯ

Is the system only for ANTERIOR?

ＮＯ

Go to 3.25.2.

ＹＥＳ

Replace the compressor with the new one. (See 4.14.)

Replace the BU CONNECT board (BA06) with the

ＮＯ

new one. (See 4.19.) Check the power if the symptom is not solved. (See 3.30.)

ＹＥＳ

Replace the cutter with the new one.

ＹＥＳ

Normal

ＹＥＳ

Replace or reconnect the air leaked part.

ＹＥＳ

Go to 3.25.1.

Page 51

3 - 41

3.25.1 Check of air pressure piping for cutter (only for

ANTERIOR)

ＹＥＳ

Does the LED of CUTTER VALVE (EA33) blink while the cutter is working?

ＮＯ

Set the cut rate to 0 cpm and start the cutter. Is the voltage (24V) output between 1st and 2nd pins of J518?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

Replace the DRIVER board (BA05) with the new one.

ＮＯ

(See 4.29.) If the symptom is not solved, check the power. (See 3.30.)

Check the pressure of input part of EA33 by pressure sensor. Set the cut rate to 0 cpm and start the cutter. Is the pressure more than 230 kPa?

ＮＯ

Does the LED of I.P.S. VALVE (EA68) illuminate while

ＹＥＳ

the compressor is working? Does the LED of EA68 go out while the compressor is not working?

ＮＯ

Depress the foot pedal to start the compressor. Is the voltage (24V) output between 1st and 2nd pins of J615?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.13.)

Check the pressure of input part of EA68 by pressure sensor. Is the pressure more than 230 kPa if the compressor is started?

ＮＯ

Replace the compressor with the new one. (See 4.14.)

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

Replace the BU CONNECT board (BA06). (See 4.19.)

ＮＯ

If the symptom is not solved, check the power. (See 3.30.)

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Page 52

3 - 42

3.25.2 Check of air pressure piping for cutter (for both of

ANT/POST)

ＹＥＳ

Does the LED of CUTTER VALVE (EA33) illuminate while the cutter is started?

ＮＯ

Set the cut rate to 0 cpm and start the cutter. Is the voltage (24V) output between 1st and 2nd pins of J518?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

Replace the DRIVER board (BA05) with the new one.

ＮＯ

(See 4.29.) If the symptom is not solved, check the power. (See 3.30.)

Check the pressure of input part of EA33 by pressure sensor. Set the cut rate to 0 cpm and start the cutter. Is the pressure more than 230 kPa?

ＮＯ

Check the another CUTTER VALVE as above. If any problem occurs, take steps to solve it.

Does the LED of EXH VALVE (EA80) illuminate while

ＹＥＳ

the Vit mode is selected? Does the LED of EA80 go out while the mode is not selected?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J807 while the Vit mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

ＹＥＳ

Does the LED of E.P.S. VALVE (EA82) go out?

ＮＯ

Is the output voltage between 1st and 2nd pins of J809 24V?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

Check the TP20 (AIR IN) on the MAIN board (BA03). Is the voltage within 1V±0.1V while the external air pressure is not connected?

ＹＥＳ

Replace the FGX/SCIS board (BA08) with the new one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

Are A and P pins of E.P.S. VALVE (EA82) continuous?

ＮＯ

Ａ

ＮＯ

Replace the pressure sensor (EA84) with the new one. (See 4.35.)

ＹＥＳ

Replace the solenoid valve (EA82) with the new one. (See 4.33.)

Page 53

Ａ

Does the LED of SCIS BASE VALVE (EA83) go out if

ＹＥＳ

the Vit mode is selected? Does the LED of EA80 illuminate if the SCIS mode is selected?

ＮＯ

Is the voltage between 1st and 2nd pins of J807 0V while the Vit mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

Does the LED of I.P.S. VALVE (EA68) illuminate while

ＹＥＳ

the compressor is working? Does the LED of EA68 go out while the compressor is not working?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J615, while the compressor is started by depressing the foot pedal?

ＹＥＳ

Replace the FGX/SCIS board (BA08). (See 4.31.)

ＮＯ

If the symptom is not solved, check the power. (See 3.30.)

Replace the BU CONNECT board (BA06). (See 4.19.)

ＮＯ

If the symptom is not solved, check the power. (See 3.30.)

3 - 43

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Check the pressure of input part of EA68 by pressure sensor. Is the pressure more than 230 kPa while the compressor is started?

ＮＯ

Replace the compressor with the new one. (See 4.14.)

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Page 54

3 - 44

3.26 Cutter does not work (in the case of using external

air pressure)

Is the external air pressure connected correctly? Is an input pressure within the correct range (450 to 550 kPa)?

ＹＥＳ

Is the regulator of external air pressure input part set correctly (2.8 kgf/cm2±0.1)?

ＹＥＳ

ＮＯ

Does an air come out from the Vit output connector while the cutter is started?

ＹＥＳ

Is the failure solved by replacing the cutter with the new one?

Check the output pressure of the Vit output connector by pressure sensor. Set the cut rate to 0 cpm and start the cutter. Is the pressure more than 250 kPa?

ＮＯ

ＹＥＳ

Does the LED of CUTTER VALVE (EA33) blink while the cutter is working?

ＮＯ

Set the cut rate to 0 cpm and start the cutter. Is the voltage (24V) output between 1st and 2nd pins of J518?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

ＮＯ

Connect an external output correctly. Adjust an input pressure within the correct range.

ＮＯ

Set the regulator to 2.8 kgf/cm2.

ＹＥＳ

Replace the cuter with the new one.

ＹＥＳ

Normal

Replace the DRIVER board (BA05) with the new one.

ＮＯ

(See 4.29.) If the symptom is not solved, check the power. (See

3.30.)

Check the pressure of input part of EA33 by pressure sensor. Set a cut rate to 0 cpm and start the cutter. Is the pressure more than 230 kPa?

ＮＯ

Check the another CUTTER VALVE as above. If any problem occurs, take steps to solve it.

Does the LED of EXH VALVE (EA80) illuminate while the Vit mode is selected? Does the LED of EA80 go out while the mode is not selected?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J807 if the Vit mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

YES

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

YES

Ａ

Replace the FGX/SCOS board (BA08) with the new

ＮＯ

one. (See 4.29.) If the symptom is not solved, check the power. (See

3.30.)

Page 55

Ａ

ＹＥＳ

Does the LED of E.P.S. VALVE (EA82) illuminate?

ＮＯ

Is the output voltage between 1st and 2nd pins of J809 24V?

ＮＯ

Check TP20 (AIR IN) on the MAIN board (BA03). Is the voltage more than 1.8 V?

ＹＥＳ

Replace the FGX/SCIS board (BA08) with the new one. Check the power if the symptom is not solved. (See 3.30.)

Does the LED of SCIS BASE VALVE (EA83) go out

ＹＥＳ

while the Vit mode is selected? Does the LED of EA80 illuminate while the SCIS mode is selected?

ＮＯ

Is the voltage between 1st and 2nd pins of J807 OV while the Vit mode is selected?

ＹＥＳ

Relace the solenoid valve (EA80) with the new one. (See 4.33.)

ＹＥＳ

ＮＯ

3 - 45

Replace the solenoid valve (EA82) with the new one. (See 4.33.)

Replace the pressure sensor (EA84) with the new one. (See 4.35.)

Replae the FGX/SCIS board (BA08) with the new one. (See 4.31.) If the symptom is not soved, check the power. (See 3.30.)

ＹＥＳ

Does the LED of I.P.S. VALVE (EA68) go out?

ＮＯ

Is the voltage between 1st and 2nd pins of J615 OV?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Normal

Replace the BU CONNECT board (BA06) with the

ＮＯ

new one. (See 4.19.) Is the symptom is not solved, check the power. (See 3.30.)

Page 56

3 - 46

3.27 Scissors do not work correctly

3.27.1 Check of air pressure piping for using built-in compressor

ＹＥＳ

Does the compressor start working while the foot pedal is at the position 1?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J424 on the P.S. board (BA04), while the foot pedal is at more than position 1?

ＹＥＳ

Does the LED on the I..P. S. VALVE (EA68) blink and the solenoid valve work normally while the foot pedal

is shifted 0 ↔ 1?

ＮＯ

Does the voltage between 1st and 2nd pins of J615

change while the foot pedal is shifted position 0 ↔ 1 (0 ↔ 24V)?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

ＮＯ

Replace the P.S. board (BA04) with the new one. (See 4.12.)

ＹＥＳ

Replace the compressor with the new one. (See 4.14.)

Replace the BU CONNECT board (BA06).

ＮＯ

(See 4.19.) If the symptom is not solved, check the power. (See 3.30.)

ＮＯ

Does an air come out from the Scis output connector if scissors are started?

ＹＥＳ

Is the failure solved by replacing scissors with the new one?

ＹＥＳ

Check the output pressure of the Scis output connector by pressure sensor. Set the output pressure to 250 kPa, set the operation to Propt and depress the foot pedal fully. Is the voltage more than 250 kPa?

ＮＯ

ＹＥＳ

Does the LED of SCIS VALVE (EA33) illuminate while scissors are working?

ＮＯ

Set the operation to Propt and start the operation of scissors. Is the voltage (24V) output between 1st and 2nd pins of J519?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

Check the pressure of input part of EA33 by pressure sensor. Set the cut rate to 0 cpm and start the operation of cutter. Is the pressure more than 250 kPa?

ＮＯ

Can the sound of air leakage be heard from the path of air pressure piping?

ＮＯ

ＹＥＳ

Replace scissors with the new one.

ＹＥＳ

Normal

Replace the DRIVER board (BA05) with the new

ＮＯ

one. (See 4.29.) If the symptom is not solved, check the power. (See 3.30.)

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

ＹＥＳ

Replace or reconnect the air leaked part.

Ａ

Page 57

Ａ

ＹＥＳ

Does the LED of EXH VALVE (EA80) illuminate while

ＮＯ

the Scis mode is selected?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J807 while the Scis mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

ＹＥＳ

Does the LED of E.P.S. VALVE (EA82) go out?

ＮＯ

Is the output voltage between 1st and 2nd pins of J809 24V?

ＹＥＳ

Check the TP20 (AIR IN) on the MAIN board (BA03). Is the voltage value within 1V± 0.1 V while the external air pressure is not connected?

ＹＥＳ

Replace the FGX/SCIS board (BA08) with the new one. (See 4.31.) If the symptom is not solved, check the power. (See

3.30.)

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

ＮＯ

Replace the pressure sensor (EA84) with the new one. (See 4.35.)

3 - 47

Is the terminal between A and P of E.P.S. VALVE (EA82) communicated?

ＮＯ

Does the LED of SCIS BASE VALVE (EA83)

ＹＥＳ

illuminate while the Scis mode is selected? Does the LED of EA80 go out while the mode is not selected?

ＮＯ

Is the voltage between 1st and 2nd pins of J807 24V while the Scis mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

Does the LED of I.P.S. VALVE (EA68) illuminate while

ＹＥＳ

the compressor is working? Does the LED go out while the compressor is not working?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J615 while the foot pedal is depressed?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

ＹＥＳ

Replace the solenoid valve (EA82) with the new one. (See 4.33.)

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

Replace the BU CONNECT board (BA06) with the

ＮＯ

new one. (See 4.19.) If the symptom is not solved, check the power. (See 3.30.)

Check the pressure of EA68 input part by pressure sensor. Is the pressure more than 230 kPa while the compressor is started?

ＮＯ

Replace the compressor with the new one. (See 4.14.)

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Page 58

3 - 48

3.27.2 Check of air pressure piping for using external air pressure

Is the external air pressure connected correctly? Is an input pressure within the correct range (450 to 550 kPa)?

ＹＥＳ

Is the regulator of the external air pressure input part set correctly (2.8 kgf/cm2±0.1)?

ＹＥＳ

ＮＯ

Does an air come out from the Scis output connector while scissors are started?

ＹＥＳ

Is the failure solved by replacing scissors with the new one?

ＹＥＳ

Check the output pressure of the Scis output connector by pressure sensor. Set an output pressure to 250 kPa, set an operation to Propt and press the foot pedal fully. Is the pressure more than 250 kPa?

ＮＯ

ＹＥＳ

Does the LED of SCIS VALVE (EA33) blink while scissors are working?

ＮＯ

Set the operation to Propt and start the operation of scissors. Is the voltage (24V) output between 1st and 2nd pins of J519?

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

ＮＯ

Connect the external air pressure correctly. Adjust the input pressure within the correct range.

ＮＯ

Set the regulator to 2.8 kgf/cm2.

ＹＥＳ

Replace scissors with the new one.

ＹＥＳ

Normal

Replace the DRIVER board (BA05) with the new one.

ＮＯ

(See 4.29.) If the symptom is not solved, check the power. (See 3.30.)

Check the pressure of EA33 input part by pressure sensor. Set a cut rate to 0 cpm and start the operation of cutter. Is the pressure more than 250 kPa?

ＮＯ

Can the sound of air leakage be heard from the path of air pressure piping?

ＮＯ

Does the LED of EXH VALVE (EA80) blink if the Scis mode is selected? Does the LED of EA80 go out while the mode is not selected?

ＮＯ

Is the voltage (24V) output between 1st and 2nd pins of J807 while the Scis mode is selected?

ＹＥＳ

Replace the solenoid valve (EA80) with the new one. (See 4.33.)

ＹＥＳ

Replace the solenoid valve (EA33) with the new one. (See 4.33.)

ＹＥＳ

Replace or reconnect the air leaked part.

ＹＥＳ

Ａ

Replace the FGX/SCIS board (BA08) with the new

ＮＯ

one. (See 4.31.) If the symptom is not solved, check the power. (See

3.30.)

Page 59

Ａ

ＹＥＳ

Does the E.P.S. VALVE (EA82) illuminate?

ＮＯ

Is the output voltage between 1st and 2nd pins of J809 24V?

ＮＯ

Check TP20 (AIR IN) on the MAIN board (BA03). Is the voltage more than 1.8 V?

ＹＥＳ

Replace the FGX/SCIS board (BA08) with the new one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

ＹＥＳ

Does the LED of SCIS BASE VALVE (EA80) illuminate while the SCIS mode is selected?

ＮＯ

Is the voltage between 1st and 2nd pins of J807 24V while the Scis mode is selected?

ＹＥＳ

Relace the solenoid valve (EA80) with the new one. (See 4.33.)

ＹＥＳ

ＮＯ

3 - 49

Replace the solenoid valve (EA82) with the new one. (See 4.33.)

Replace the pressure sensor (EA84) with the new one. (See 4.35.)

Replae the FGX/SCIS board (BA08) with the new one. (See 4.31.) If the symptom is not solved, check the power. (See 3.30.)

ＹＥＳ

Does the LED of I.P.S. VALVE (EA68) go out?

ＮＯ

Is the voltage between 1st and 2nd pins of J615 OV?

ＹＥＳ

Replace the solenoid valve (EA68) with the new one. (See 4.33.)

Normal

Replace the BU CONNECT board (BA06) with the

ＮＯ

new one. (See 4.19.) If the symptom is not solved, check the power. (See 3.30.)

Page 60

3.28 FGX does not work correctly

3 - 50

ＹＥＳ

Does the compressor start working by turning ON the FGX?

ＮＯ

Is the voltage of ILL/FGX SELECT board (BA09) correct? 　P901 between 1st and 4th pins ： AC100V

between 2nd and 4th pins ： AC 66V between 3rd and 4th pins ： AC 33V

ＹＥＳ

Is the voltage between 1st and 3rd pins of P904 connector on the ILL/FGX SELECT board (BA09) correct while FGX is turned ON? Setting pressure 10-30mmHg ：AC 33V

30-65mmHg ：AC 66V 65-99mmHg ：AC100V

ＹＥＳ

Failure of the compressor (U5). Check the connector of compressor and replace the compressor with the new one. (See 4.14.)

The voltage from the transformer is abnormal.

ＮＯ

Check the P901 connector and replace the transformer with the new one. (See 4.18.)

ＮＯ

Replace the ILL/FGX SELECT board (BA09) with the new one. (See 4.32.)

Check of air leakage

Turn OFF the FGX. Short the open port of linear valve U21 and U23 on the FGX/SCIS board by silicon tube, etc. Connect the syringe to the RGX output lure connector. Exert pressure to the FGX piping with the syringe.

Is an air leaked? The FGX controls low pressue of 99 mmHg (13.2 kPa). So if the high pressure is exerted, air leakage may occur.

ＮＯ

Remove the shorted tube.

Check of the output pressure sensor

Turn OFF the FGX. Make the output luer connector of FGX to an open state. Is the voltage of the MAIN board TP12 (FGX OUT)

1.0V ± 0.2V?

ＹＥＳ

The air laekage of the FGX tube or the connector occur.

Failure of pressure sensor (U57) for output attached

ＮＯ

to the control unit is a probable cause. Replace the pressure sensor with the new one. (See 4.40.)

ＹＥＳ

Ａ

Page 61

Ａ

Remove the tube from the control board (lower part) connected to the pressure sensor for output (U57), and connect the syringe to the pressure sensor. Connect the pressure gauge to the output luer connector of FGX. Put a stopper to the luer connector, if there is no pressure gauge.

Does the voltage of TP12 (FGX OUT) on the MAIN board change if the pressure is exerted to the pressure sensor (U57) with the syringe? Check that the voltage of TP12 change by exerting the pressure if there is no pressure gauge. Pressure gauge 0.00 kPa : 1.0V ± 0.2V

12.25 KPa : 2.0V ± 0.2V

Failure of the pressure sensor for output (U57)

ＮＯ

attached to the contol unit is a probable cause. Replace the pressure sensor with the new one. (4.40.)

3 - 51

ＹＥＳ

Return the tube removed from the pressure sensor for output (U57) to the original position.

Check of the pressure sensor for control

Is the voltatge between 1st and 2nd pins of J801 on the FGX/SCIS board +24V?

ＹＥＳ

Remove the tube connected to the pressure sensor for control (U18) and connect the power gauge and the syringe to the pressure sensor. Does the voltage of TP3 on the FGX/SCIS board change by exerting the pressure to the pressure sensor with the syringe? Check the change of voltage of TP3 by exerting pressure if there is no pressure gauge? Pressure gauge 0.00 kPa : 1.0V±0.2V

12.25 kPa : 2.0V±0.2V

ＹＥＳ

Return the tube connected to the pressure sensor for output (U57) to the original position.

ＮＯ

Failure of the power supplied to the FGX/SCIS board. Check the +24V power.

Failure of the pressure sensor for control (U18) is a

ＮＯ

probable cause. Replace the pressure sensor with the new one. (See 4.34.)

Is all of the dip SW1 on the FGX/SCIS board turned OFF?

ＹＥＳ

Failure of FGX/SCIS board (BA08). Replace the board with the new one. (See 4.31.)

ＮＯ

Turn OFF all of the SW1.

Page 62

3.29 Illumination does not work correctly

3 - 52

Is the lamp normal? (Check the burnt out of lamp.)

ＹＥＳ

Is the lamp house closed?

ＹＥＳ

Does the ON/OFF sihft by pressing the intraocular illumination ON/OFF switch?

ＹＥＳ

Is the voltage between 1st and 4th pins of P901 on the ILL/FGX SELECT board (BA09) AC100V?

ＹＥＳ

Does the voltage between 1st and 4th pins of P902 on the ILL/FGX SELECT board become AC100V by turning ON the Illum1?

ＮＯ

Replace the lamp with the new one.

ＮＯ

Close the lamp house.

The lamp house is probably open.

ＮＯ

Check the connection of connector of the DRIVER board (J523).

Failure of the transformer or abnormal power

ＮＯ

voltage are probable causes. Replace the transformer with the new one, if the power voltage is normal. (See 4.18.)

Failure of the ILL/FGX SELECT board is a

ＮＯ

probable cause. Replace it with the new one. (See4.32.)

ＹＥＳ

Does the power input of PS1 (halogen lamp power source) become AC100V by turning ON the Illum1?

ＹＥＳ

Does the voltage between - (BLU) and EXT (GRN) of PS1 terminal change between 0 and 5V by changing the ON/OFF switch and setting (1 to

10)?

ＹＥＳ

Does the voltage between - (BLU) and + (BRN) of the PS1 terminal change between 0 and 13.1V by changing the ON/OFF switch and setting (1 to

10)?

ＹＥＳ

Is it possible to turn ON/OFF of Illum1 or adjust light?

ＹＥＳ

Failure of the cable between the ILL/FGX

ＮＯ

SELECT board and PS1 is a probable cause. (See 4.32.) Check or replace the cable with the new one.

The brightness control voltage of the Illum1 is

ＮＯ

abnormal. Check cables or replace the MAIN board with the new one. (See 4.8.)

ＮＯ

Failure of the halogen lamp power (PS1).

ＮＯ

Failure of the power of halogen lamp (PS1) and the cable among lamps.

Illum1 is normal.

Ａ

Page 63

3 - 53

Ａ

Does the voltage between 1st and 4th pins of P903 on the ILL/FGX SELECT board become AC100V by turning ON the Illum2?

ＹＥＳ

Does the power input of PS2 (halogen lamp power) become AC100V by turning ON the Illum2?

ＹＥＳ

Does the voltage between - (BLK) and EXT (GRN) of the PS2 terminal change between 0 and 5V by changing the ON/OFF switch and setting (1 to

10)?

ＹＥＳ

Does the voltage between - (BLK) and + (RED) of the PS1 terminal change between 0 and 13.1V by changing the ON/OFF switch and setting (1 to

10)?

ＹＥＳ

Is it possible to turn ON/OFF of Illum2 or adjust light?

Failure of the ILL/FGX SELECT board is a probable cause. Replace the board with the new

ＮＯ

one. (See 4.32.)

Failure of the cable between ILL/FGX SELECT

ＮＯ

board and PS2 is a probable cause. Check or replace the cable with the new one.

The brightness control voltage of the Illum2 is

ＮＯ

abnormal. Check cables or replace the MAIN board with the new one. (See 4.8.)

ＮＯ

Failure of the power of halogen lamp (PS2).

ＮＯ

Failure of the power of halogen lamp (PS2) and cables among lamps.

ＹＥＳ

Illum2 is normal.

Failure of the light guide is a probable cause.

Page 64

3.30 Check of power (P.S. board)

Remove all connectors connected to the PS board and all terminals on the terminal block . Caution) Turn OFF the power for connecting/ disconnecting connectors or terminals.

ＹＥＳ

3 - 54

Is the voltage between 1st and 2nd pins of TB401 (yellow line) on the P.S. board AC35V?

ＹＥＳ

Is the voltage between 3rd and 4th pins of TB401 (orange line) on the P.S. board AC35V?

ＹＥＳ

Connect the cable between 1st and 4th pins of TB401.

Is the voltage between 1st and 2nd, 3rd and 4th pins of TB401 on the PS board AC35V?

ＹＥＳ

Are following voltages on the PS board correct? TP2 ：+12V +11.5V － +12.5V TP3 ：+28V +27.5V － +29.0V TP4 ：-28V -27.5V － -29.0V TP8 ：+6V +5.0V － +6.0V TP9 ：+5V +4.8V － +5.2V TP10 ：+24V +23.0V － +25.0V

ＮＯ

Failure of the transformer and power input. Check them.

ＮＯ

Failure of the transformer and power input. Check them.

ＮＯ

Failure of the P.S. board. Replace it with the new one. (See 4.12.)

ＮＯ

Failure of the P.S. board. Replace it with the new one. (See 4.12.)

ＹＥＳ

Are following adjustments of

±12V on the

board correct? TP6 ：+12V +11.9V － +12.1V TP7 ：-12V -11.9V － -12.1V

ＮＯ

Do voltages become correct by readjusting TP6 ：+12V Adjust with VR1 TP7 ：-12V Adjust with VR2

ＹＥＳ

Connect the following connectors on the PS board. P414, P416, P418, P420 and P430

Ａ

±12V?

ＮＯ

Failure of the P.S. board. Replace it with the new one. (See 4.12.)

Page 65

Ａ

Connect the following connectors on the PS board. P414, P416, P418, P420 and P430

3 - 55

ＹＥＳ

ＮＯ

Are following voltages on the PS board correct? TP3 ：+28V +27.5V － +29.0V TP4 ：-28V -27.5V － -29.0V

ＮＯ

Does the voltage of TP3 and TP4 become correct by disconnecting the connectors P101, P102 and P103 from the US board?

ＮＯ

±28

The

V is used for the compressor (U4) and the US unit but it is not connected to the compressor. Check the BU CONNECT board and cables among them whether there are abnormal parts.

Connect the connectors P423 and P424 (compressor). Does the compressor work by setting the Vit mode for cataract surgery and depressing the foot pedal?

ＮＯ

Disconnect the connector P424. Does the voltage between 1st and 2nd pins (OV) of P424 become +24V while the compressor is started?

ＹＥＳ

Open the air output piping of the compressor. Does the compressor work by setting the Vit mode for cataract surgery and depressing the foot pedal?

ＮＯ

ＹＥＳ

Failure of the US unit. Replace it with the new one. (See 4.13.)

Ｂ

Failure of the air output circuit of compressor. Check the piping.

Failure of the compressor. Replace it with the new one. (See 4.14.)

Disconnect connectors P423 and P424. Short the terminal between 2nd and 3rd pins of J423. Does the voltage between 1st and 2nd pins (OV) of P424 become +24V while the compressor is started?

ＹＥＳ

The control signal of the compressor does not come. Failure of the MAIN board and the BU CONNECT board. Replace them with the new one. (See 4.19.)

ＮＯ

Failure of the PS board. Replace it with the new one. (See 4.12.)

Page 66

Ｂ

Are following voltages on the PS board correct?

ＹＥＳ

TP6 ：+12V +11.9V － +12.1V TP7 ：-12V -11.9V － -12.1V

ＮＯ

3 - 56

Does the voltage of TP6 and TP7 become correct by disconnecting the connectors P101, P102 and P103 from the US board?

ＮＯ

Disconnect the connectors P604 and P605 from the BU CONNECT board. Does the voltage of TP6 and TP7 become correct?

ＮＯ

The

V is used for the MAIN board and the US

±12

unit. Check the BU CONNECT baord, the MAIN board and cables between them whether there are abnormal parts.

Is the following voltage on the PS board correct? TP1：+12V +11.5V － +12.5V

ＮＯ

Does the voltage of TP1 become correct by disconnecting P612 from the BU CONNECT board?

ＮＯ

ＹＥＳ

Failure of the US unit. Replace it with the new one. (See 4.13.)

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

Ｃ

Failure of the POLE CONTROL board. Replace it with the new one. (See 4.25.)

Does the voltage of TP1 become correct by disconnecting P605 from the BU CONNECT board?

ＮＯ

Does the voltage of TP1 become correct by disconnecting P604 from the BU CONNECT board?

ＮＯ

The

V (TP1) is used for the MAIN board, the

±12

DRIVER board (the aspiration unit) and the POLE CONTROL board. Check the BU CONNECT baord and the cables among them whether there are abnormal parts.

ＹＥＳ

Failure of the DRIVER board or the aspiration unit. (See 4.11 or 4.29.) Replace the board or the unit with the new one.

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

Page 67

Ｃ

ＹＥＳ

Is the following voltage on the PS board correct? TP8 ：+6V +5.0V － +6.0V

ＮＯ

Does the voltage of TP8 become correct by disconnecting P605 from the BU CONNECT board?

ＮＯ

Does the voltage of TP8 become correct by disconnecting P604 from the BU CONNECT board?

ＮＯ

The +6V (TP8) is used for the MAIN board and the DRIVRE board (control unit). Check the BU CONNECT baord and cables among them whether there are abnormal parts.

Failure of the DRIVER board or the control unit.

ＹＥＳ

(See 4.11 or 4.29.) Replace the board or the control unit with the new one.

ＹＥＳ

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

3 - 57

Is the following voltage on the PS board correct? TP9 ：+5V +4.8V － +5.2V

ＮＯ

Does the voltage of TP9 become correct by disconnecting P101, 102 and 103 from the US board?

ＮＯ

Does the voltage of TP9 become correct by disconnecting P525 from the DRIVER board?

ＮＯ

Does the voltage of TP9 become correct by disconnecting P605 from the BU CONNECT board?

ＮＯ

Does the voltage of TP9 become correct by disconnecting P604 from the BU CONNECT board?

ＮＯ

Failure of the BU CONNECT board is a probable cause. Replace it with the new one. (See 4.19.)

ＹＥＳ

Ｄ

Failure of the US unit. Replace it with the new one. (See 4.13.)

Failure of the DISPLAY board or the LCD. (See 4.7.) Replace the board or the LCD with the new one.

Failure of the DRIVER board or the control unit. (See 4.11 or 4.29.) Replace the board or the unit with the new one.

Failure of the MAIN board. Replace it with the new one. (See 4.8.)

Page 68

3 - 58

Ｄ

Is the following voltage on the PS board correct? TP10 ：+24V +23.0V － +25.0V

ＮＯ

Does the voltage of TP10 become correct by disconnecting P517 from the DRIVER board?

ＮＯ

Does the voltage of TP10 become correct by disconnecting P605 from the BU CONNECT board?

ＮＯ

The +24V (TP10) is used for the DRIVER board (aspiration unit). Check the BU CONNECT baord and cables among them whether there are abnormal parts.

ＹＥＳ

Normal

Failure of the fan (FN2). Replace it with the new one.

Failure of the DRIVER board or the control unit. (See 4.11 or 4.29.) Replace the board or the control unit with the new one.

Page 69

REPLACEMENT

4.1 Replacement of top cover

1) Unscrew HH4×4 remove the joint.

2) Unscrew PC4×12

3) Unscrew TC4×12

4) Replace the top cover with the new one.

5) Attach the top cover in the reverse order.

n=2

on the joint of pole to

n=2

Top cover

HH4×4 PC4×12

4.2 Replacement of rear cover

1) Unscrew TC4×12

2) Replace the rear cover with the new one.

3) Unscrew TC4×12

n=4

Rear cover

TC4×10

TC4×12

Page 70

4.3 Replacement of lower part of left cover

1) Open the door.

4 - 2

2) Unscrew AS4×8

3) Unscrew TC4×12

n=2

to remove the door.

Znc

n=1

to open the lower part

of left cover.

TC4×12

Lower part of left cover

4) Unscrew FC3×4

n=4

5) Replace the lower part of left cover with the new one.

6) Attach the lower part of left cover in the reverse order.

FC3×4

Lower part of left cover

4.4 Replacement of lower part of right cover

TC4×8

1) Open the door.

2) Unscrew TC4×8 in the back of door to open the lower part of right cover.

3) Unscrew FC3×4

4) Replace the lower part of right cover with the new one.

5) Attach the lower part of right cover in the reverse order.

n=4

. (See 4.3.)

Page 71

4.5 Replacement of front cover

1) Open the lower part of left cover. (See 4.3.)

2) Open the lower part of right cover. (See 4.4.)

3) Unscrew TC4×8

4) Replace the front cover with the new one.

5) Attach the front cover in the reverse order.

n=6

TC4×8

Front cover

4 - 3

4.6 Replacement of inverter

1) Unscrew PC4×12 LCD cover from the rear LCD cover.

2) Disconnect the connectors inverter.

3) Remove the nylon rivets

4) Replace the inverter with the new one.

5) Attach the inverter in the reverse order.

n=4

to remove the front

Rear LCD cover

n=3

from the

n=3

PC4×12

Connector

Inverter

Nyron rivet

Page 72

4.7 Replacement of display board

4 - 4

1) Unscrew PC4×12

n=4

to remove the front

LCD cover from the rear LCD cover. (See

4.6.)

2) Disconnect all connectors from the display board.

3) Remove 82051-B315F

n=4

4) Replace the display board with the new one.

5) Attach the display board in the reverse order.

4.8 Replacement of main board

1) Unscrew PC4×10 upper part of rear cover.

2) Open the upper part of rear cover.

Perform followings if data is stored. If not, go to step 9).

3) Set No.4 of DIP SW on the main board to ON and turn ON the main SW.

4) Verify that the lug of memory card is set inward. Then, insert the memory card. (writable state)

5) Press the Memory card SW.

6) Press any switches (Dr. 1 - Dr. 5) inside the CV-24000 box on the dispaly.

7) Press the Copy SW.

8) Press any switches (Dr. 1 - Dr. 5) inside the Memory Card box on the display.

9) Disconnect all connectors from the main board.

10) Unscrew PC3×6

11) Replace the main board with the new one.

12) Attach the main board in the reverse order.

n=2

for fixation on the

n=4

PC4×10

Upper part of rear cover

Main board

82051-B315FDisplay board

PC3×6

13) When the system is for ANTERIOR only, set No.1 of DIP SW on the main board to ON and turn ON the main SW. When the system is for ANT/POST, set No. 1 and No. 2 of DIP SW on the main board to ON and turn ON the main SW. Then, set No. 4 of DIP SW on the main board to ON and turn On the main SW.

14) Press the Flash ROM Clear SW and press OK SW. After turning OFF the main SW, verify that all modes are in the OFF state.

Page 73

Perform followings if data is stored. If not, perform step 23).

15) Press the Dr. 01 SW inside the Memory Card box on the display and press the OK SW.

16) The Dr. 01 SW inside the Memory Card box is changed to the Dr. 1 SW.

17) Press the Dr. 02 SW.

18) Press the Copy SW.

19) Press the Dr. 2 SW inside the CV-24000 box and press the OK SW.

20) The Dr. 2 SW inside the CV-24000 box is changed to the Dr. 02 SW.

21) Turn OF and ON the main SW of the main body and press the EXIT SW and Memory Card SW. Then, check that data is copied on the display.

22) Remove the memory card.

23) Insert a Jig for VOICE card and press the voice card SW, input Flash SW, and then, OK SW on the display. Input VOICE data to the main body. When the input is completed, remove the card.

5.9 Replacement of limit switch

4 - 5

1) Open the lower part of left cover. (See 4.3.)

Limit switch

2) Unscrew AS3×6

n=2

from the inside of base

to remove the limit switch.

3) Replace the limit switch with the new one and attach it to the main body.

4) Attach the lower part of left cover. (See 4.3.)

Base

Limit switch

AS3×6

Page 74

4.10 Replacement of driving (AC) motor

1) Align the height of pole to be 46 cm.

2) Remove the rear cover. (See 4.2.)

3) Unscrew TC4×6 unit.

4) Open the lower part of left cover. (See 4.3.)

n=4

to remove the rear panel

4 - 6

5) Unscrew SB3×8

n=2

on the pole unit.

* For unscrewing, make sure to hold the pole

with hands or the pole falls down.

6) Remove the belt from pulley.

7) Remove the limit switch unit. (See 4.9.)

Pole

SB3×8

TC4×6

Rear panel unit

(100, 200V)

8) Unscrew SB4×10

n=3

from the rear side to

remove the driving (AC) motor.

9) Replace the driving (AC) motor with the new one.

10)Assemble the removed parts in the reverse order (from step 7) to 2)).

11)Adjust the irrigation height detection potentiometer.

Driving motor

Page 75

4.11 Replacement of control unit

1) Remove the top cover. (See 4.1.)

2) Disconnect all connectors from the control unit (aspiration unit). (Except for the cable between the control unit and control unit.)

Control unit SB4×12

4 - 7

3) Remove PC4×10

n=2

for fixation on the upper

part of rear cover.

4) Open the upper part of rear cover.

PC4×10

Upper part of rear cover

5) Unscrew SB4×12

n=3

(unscrew 2 of them

from the rear side).

6) Replace the control unit (aspiration unit) with the new one.

7) Assemble removed parts in the reverse order.

Control unit

SB4×12

Page 76

4.12 Replacement of P.S. board

1) Open the lower part of left cover. (See 4.3.)

2) Open the lower part of right cover. (See 4.4.)

3) Remove the front cover. (See 4.5.)

4) Disconnect the connector from the P.S. board.

5) Unscrew BS4×8

6) Unscrew BS3×6

7) Replace the P.S. board with the new one.

8) Apply a heat sinker to the heat sinking unit on the P.S. board.

9) Attach the P.S. board in the reverse order.

n=4

. .

BS3×6

4 - 8

P.S. boardBS3×6

BS4×8 P.S. board BS3×6

Page 77

4.13 Replacement of US unit

1) Remove the rear cover. (See 4.2.)

2) Open the lower part of left cover. (See 4.3.)

3) Open the lower part of right cover. (See 4.4.)

4) Disconnect the connector from the heat sinking unit.

5) Unscrew SB3×4 attachment plate.

n=4

to remove the fan

Fan attachment plate

SB3×4

4 - 9

6) Unscrew BS3×8

n=4

to replace the heat

sinking unit.

Heat sink

7) Disconnect all connectors from the US unit.

8) Unscrew BS3×8

n=4

to replace the US board

unit.

9) Assemble the US unit in the reverse order.

BS3×8

Fan attachment plate

US board

BS3×8

Page 78

4.14 Replacement of compressor

1) Open the lower part of right cover. (See 4.4.)

2) Open the front cover. (See 4.5.)

3) Unscrew PC3×10

n=4

4) Replace the compressor with the new one.

5) Attach the compressor in the reverse order.

4.15 Replacement of printer

4 - 10

CompressorPC3×10

1) Unscrew PC4×10

n=2

for fixation on the

upper part of rear cover.

2) Open the upper part of rear cover.

3) Disconnect all connectors from the main board.

4) Unscrew PC3×6

n=4

. (See 4.8.)

5) Remove the main board. (See 4.8.)

6) Unscrew PC3×4

n=4

7) Remove the printer box.

8) Unscrew PC2×5

9) Unscrew BS3×6

n=3

to remove the cover.

n=3

10)Replace the printer with the new one.

11)Attach the printer in the reverse order.

PC3×4

Printer box

PC3×6

Printer

Page 79

4.16 Replacement of noise filter

4 - 11

1) Unscrew PC4×6

n=2

2) Remove the cable lock.

Cable lock

3) Unscrew FC3×6

n=2

4) Disconnect all terminals from the noise filter.

5) Replace the noise filter with the new one.

6) Attach the noise filter in the reverse order.

PC4×6

Noise filter

FC3×6

4.17 Replacement of power switch

1) Remove the rear cover. (See 4.2.)

2) Disconnect all terminals from the power switch.

3) Replace the power switch with the new one.

4) Attach the power switch in the reverse order.

Power switch

Page 80

4.18 Replacement of transformer

1) Remove the P.S. board. (See 4.12.)

2) Remove the compressor. (See 4.14.)

3) Disconnect all cables carried out from the transformer.

4) Unscrew AS4×8

5) Replace the transformer with the new one.

6) Attach the transformer in the reverse order.

Znc

n=4

4 - 12

Transformer AS4×8

4.19 Replacement of BU CONNECT board (BA06)

1) Remove the rear cover. (See 4.2.)

2) Disconnect all connectors from the BU CONNECT board (BA06).

BS3×6

BU CONNECT board

3) Replace the BU CONNECT board (BA06) with the new one.

4) Attach the BU CONNECT board (BA06) in the reverse order.

Znc

Page 81

4.20 Replacement of VR board (BA21)

4 - 13

1) Unscrew PC4×12

n=4

to remove the front

LCD cover from the rear LCD cover. (See

4.6.)

2) Disconnect all connectors from the VR board (BA21).

3) Unscrew BS3×6

n=2

4) Replace the VR board (BA21) attached to the rear LCD cover with the new one.

5) Attach the VR board (BA21) in the reverse order.

4.21 Replacement of RECEIVER board (BA02)

1) Unscrew PC4×12 LCD cover from the rear LCD cover.

2) Unscrew PT3×6

3) Replace the RECEIVER board (BA02) attached to the front LCD cover with the new one.

4) Attach the VR board (BA21) in the reverse order.

n=4

to remove the front

n=2

VR boardBS3×6

RECEIVER board

PT3×6

Page 82

4.22 Replacement of speaker

4 - 14

1) Unscrew PC4×10

n=2

for fixation on the

upper part of rear cover.

2) Open the upper part of rear cover.

Upper part of rear cover

3) Unscrew TC4×6Cr

n=3

4) Replace the speaker with the new one.

5) Replace the speaker in the reverse order.

PC4×10

Speaker

TC4×6

Page 83

4 - 15

4.23 Replacement of irrigation pole UP/DOWN switch

(EA56)

1) Unscrew PC4×10

n=2

for fixation on the

upper part of rear cover.

2) Open the upper part of rear cover.

Upper part of rear cover

PC4×10

3) Replace the irrigation pole UP/DOWN switch with the new one.

4) Attach the irrigation pole UP/DOWN switch in the reverse order.

Irrigation pole UP/DOWN switch

4.24 Replacement of PRINT/FEED switch (BA29)

1) Unscrew PC4×10 upper part of rear cover.

2) Open the upper part of rear cover.

3) Disconnect connectors from the PRINTER/ FEED switch (BA29).

4) Unscrew BS3×6

5) Replace the PRINT/FEED switch (BA29) with the new one.

6) Attach the irrigation pole UP/DOWN switch in the reverse order.

n=2

for fixation on the

Upper part of rear cover

n=2

Znc

PRINT/FEED switch (BA29)

PC4×10

Printer

BS3×6

Znc

Page 84

4 - 16

4.25 Replacement of POLE CONTROL board (BA07)

1) Remove the P.S. board. (See 4.12.)

2) Remove the compressor. (See 4.14.)

POLE CONTROL board

AS3×6

3) Disconnect connectors from the POLE CONTROL board.

4) Unscrew AS3×6

Znc

n=4

5) Replace the POLE CONTROL board with the new one.

6) Attach the POLE CONTROL board in the reverse order.

4.26 Replacement of the microswitch (SW56 and 58)

1) Remove the aspiration unit. (See 4.11.)

2) Remove the DRIVER board (BA05) with the new one. (See 4.29.)

DC motor (EA38) SB3×15

Znc

3) Unscrew SB3×15

n=2

4) Remove the DC motor (EA38) for replacing only SW58 (EA36).

5) Unscrew PC2×14

n=2

and 3PW2

n=2

6) Replace SW58 (EA36) or SW56 (EA37) with the new one.

7) Attach the removed parts in the reverse order.

SW58 (EA36)

PC2×14

3PW2

SW56 (EA37)

Page 85

4.27 Replacement of EJECT switch board (BA29)

1) Remove the control unit. (See 4.11.)

4 - 17

2) Unscrew FC3×12

n=4

3) Remove the cassette panel.

Cassette panel FC3×12

4) Disconnect connectors from the EJECT switch board (BA29).

5) Unscrew N3

n=2

6) Replace the EJECT switch board (BA29) with the new one.

7) Attach the removed parts in the reverse order.

EJECT switch

4.28 Replacement of TUBE SENS board (BA28)

1) Remove the control unit. (See 4.11.)

2) Unscrew FC3×12

n=4

3) Remove the cassette panel.

4) Unscrew BS3×6

n=2

to remove the TUBE

Znc

SENS board (BA28) with a metal sheet.

5) Unscrew PC3×10

n=2

6) Replace the TUBE SENS board (BA28) with the new one.

7) Attach the removed parts in the reverse order.

PC3×10

Cassette panel FC3×12

TUBE SENS board (BA28)

Page 86

4 - 18

4.29 Replacement of DRIVER board (BA05)

1) Remove the top cover. (See 4.1.)

2) Disconnect connectors from the control unit.

3) Unscrew AS3×6

Znc

n=4

4) Replace the DRIVER board (BA05) with the new one.

5) Attach the DRIVER board in the reverse order.

DRIVER board (BA05) AS3×6

Znc

4.30 Replacement of CASSETTE SENS board (BA27)

1) Remove the control unit. (See 4.11.)

2) Remove the DRIVER board (BA05). (See

4.29.)

3) Unscrew HH3×3.

Shading plate

4) Unscrew SB3×10

n=2

5) Remove the CASSETTE SENS board (BA27) with a metal sheet.

SB3×10

6) Unscrew N3

n=2

7) Replace the CASSETTE SENS board (BA27) with the new one.

8) Attach the removed parts in the reverse order. Make sure that HH3×3 comes to the flat surface of the motor axis for assembling the shading plate to the motor.

HH3×3

Page 87

4.31 Replacement of FGX/SCIS board (BA08)

1) Remove the rear cover. (See 4.2.)

4 - 19

2) Unscrew BS3×6

3) Replace the FGX/SCIS board (BA08) with the new one.

4) Attach the removed parts in the reverse order.

n=4

BS3×6

4.32 Replacement of ILL/SCIS SELECT board (BA09)

1) Remove the front cover. (See 4.5.)

2) Remove all connectors from the ILL/SCIS SELECT board (BA09).

3) Unscrew BS3×6

4) Replace the ILL/SCIS board (BA09) with the new one.

5) Attach the removed parts in the reverse order.

n=2

BS3×6

Page 88

4.33 Replacement of solenoid valve

1. Replacement of the solenoid valve (EA68)

1) Open the left cover. (See 4.3.)

2) Open the right cover. (See 4.4.)

3) Remove the front cover. (See 4.5.)

4) Remove the piping.

5) Unscrew PC3×18

6) Replace the solenoid valve (EA68) with the new one.

7) Attach the removed parts in the reverse order.

n=2

Solenoid valve (EA68)

PC3×18

4 - 20

2. Replacement of the solenoid valve (EA80)

1) Open the left cover. (See 4.3.)

2) Open the right cover. (See 4.4.)

3) Remove the front cover. (See 4.5.)

4) Remove the piping.

5) Unscrew PC3×6

n=2

6) Replace the solenoid valve (EA80) with the new one.

7) Attach the removed parts in the reverse order.

Solenoid valve (EA80)

PC3×6

Page 89

3. Replacement of the solenoid valve (EA82)

1) Open the left cover. (See 4.3.)

2) Open the right cover. (See 4.4.)

3) Remove the front cover. (See 4.5.)

4) Remove the piping.

5) Unscrew PC3×18

n=2

6) Replace the solenoid valve (EA82) with the new one.

7) Attach the removed parts in the reverse order.

Solenoid valve (EA82)

4. Replacement of the solenoid valve (EA33)

1) Open the front cover. (See 4.1.)

2) Remove the piping.

3) Unscrew PC3×18

n=2

4) Replace the solenoid valve (EA33) with the new one.

5) Attach the removed parts in the reverse order.

PC3×18

4 - 21

Solenoid valve (EA33)

4.34 Replacement of pressure sensor for control (EA86)

1) Open the left cover. (See 4.3.)

2) Open the right cover. (See 4.4.)

3) Remove the front cover. (See 4.5.)

4) Remove the piping.

5) Unscrew PC3×18

6) Replace the pressure sensor for control (EA86).

7) Attach the removed parts in the reverse order.

n=2

PC3×18

Solenoid valve (EA86)

Page 90

4 - 22

4.35 Replacement of pressure sensor (EA84)

1) Remove the rear cover. (See 4.2.)

2) Remove the piping.

3) Unscrew SB4×35

n=2

4) Replace the pressure sensor (EA84) with the new one.

5) Attach the removed parts in the reverse order.

Pressure sensor (EA84)

SB4×35

4.36 Replacement of condenser (C1) for AC motor (driving

motor)

1) Remove the P.S. board. (See 4.12.)

2) Remove the compressor. (See 4.14.)

3) Disconnect the connector of the condenser (C1) from the POLE CONTROL board.

4) Unscrew AS4×8

5) Replace the condenser (C1) with the new one.

7) Attach the removed parts in the reverse order.

Znc

n=2

Condenser (C1)

POLE CONTROL board

Page 91

4.37 Replacement of VACUUM SENS board (BA26)

4 - 23

1) Remove the top cover. (See 4.1.)

2) Disconnect all connectors from the VACUUM SENS board (BA26).

3) Unscrew PC3×12

n=2

4) Replace the VACUUM SENS board (BA26) with the new one.

5) Attach the removed parts in the reverse order.

POLE CONTROL board

4.38 Replacement of CARD board (BA24)

1) Unscrew PC4×10 upper part of rear cover.

2) Open the upper part of rear cover.

n=2

for fixation on the

PC3×12

PC4×10

Upper part of rear cover

3) Disconnect the connector from the CARD board (BA24).

4) Unscrew BS3×10

Znc

n=4

5) Replace the CARD board (BA24) with the new one.

6) Attach the removed parts in the reverse order.

CARD board

BS3×10

Znc

Page 92

4.39 Replacement of valve unit (1 set and 2 sets)

1) Remove the DRIVER board (BA05). (See

4.29.)

2) Unscrew SB3×6

3) Replace the valve unit with the new one.

4) Attach the removed parts in the reverse order.

Znc

4 - 24

Valve unit

(2 sets)

SB3×6

Znc

SB3×6

n=4

Znc

n=3

Valve unit (1 set)Valve unit (2 sets)

SB3×6

Znc

4.40 Replacement of pressure sensor for FGX output

(EA88)

1) Remove the control unit. (See 4.11.)

2) Remove the piping.

3) Unscrew SB3×18

4) Replace the pressure sensor for FGX output (EA88) assembled to the control unit with the new one.

5) Attach the removed parts in the reverse order.

n=2

n=4

SB3×18

n=2

Page 93

4.41 Replacement of seat switch

4 - 25

1) Unscrew PC4×12 LCD cover from the rear LCD cover. (See

4.6.)

2) Remove the connector of seat switch from the display board.

3) Replace the seat switch with the new one.

4) Attach the removed parts in the reverse order.

n=4

to remove the front

Seat switch cable

4.42 Replacement of load cell unit (EA31)

1) Remove the top cover. (See 4.1.)

2) Disconnect all connectors from the VACUUM SENS board (BA26).

3) Unscrew PC3×10

4) Remove the whole load cell unit.

n=2

PC3×10

Seat switch

Page 94

4 - 26

5) Unscrew CK2×4

n=2

6) Replace the load cell (EA31) with the new one.

7) Attach the removed parts in the reverse order.

82051

-C306P

181

182

Load cell (EA31)

183

EA26

CK2×4

4.43 Replacement of the aspiration motor (EA39)

1) Remove the control unit. (See 4.11.)

2) Remove the DRIVER board (BA05). (See

4.29.)

3) Unscrew SB4×10

4) Remove the whole aspiration motor (EA39).

5) Unscrew HH3×3 to remove the whole shading plate.

6) Unscrew HH4×6.

7) Remove the peristaltic roller unit.

8) Unscrew SB4×10

9) Replace the aspiration unit (EA39) with the new one.

10)Attach the removed parts in the reverse order.

11)Adjust positioning of the aspiration motor (EA39). (See 5.15.)

n=2

n=3

SB4×10

HH3×3

SB4×10

n=3

Shading plate

Aspiration motor

HH4×6

Peristaltic roller unit

Page 95

4.44 Replacement of pilot lamp

1) Remove the rear cover.

2) Disconnect P618 connector from the BU CONNECT board.

3) Remove the pilot lamp with the new one.

4) Attach the removed parts in the reverse order.

Pilot lamp

4 - 27

Page 96

ADJUSTMENT

5.1 Transformer output (check at the secondary side)

Disconnect all connectors and check voltages of following connectors.

Pin number Voltage (AC) a) TB401 between 1-2 33V b) TB401 between 3-4 33V c) P712 between 1-3 100V d) P901 between 1-4 100V e) P901 between 2-4 66V f) P901 between 3-4 33V

5.2 Output voltage check of P.S. board (BA04)

1) TP number Voltage (DC) a) TP2 +12V(+11.5V to +12.5V) b) TP3 +28V(+28.0V to +29.0V) c) TP4 -28V (-28.0V to -29.0V) d) TP6 +12V(+11.9V to +12.1V) e) TP7 -12V (-11.9V to -12.1V) f) TP8 +6V (+5.0V to +6.0V) g) TP9 +5V (+4.8V to +5.2V) h) TP10 +24V(+22.0V to +26.0V)

2) Voltage adjustment of TP6 and TP7 a) TP6 VR1 +12V (+11.95V to +12.05V) b) TP7 VR2 -12V (+11.95V to +12.05V) c) Apply a paint locker to VR1 and VR2

5.3 Output voltage check of BU CONNECT board (BA06)

Pin number Voltage (AC)

+ a) P601 between 1-2 +5V b) P601 between 3-4 +12V c) P601 between 5-6 +6V d) P601 between 7-6 +24V e) P602 between 1-2 +5V f) P602 between 4-5 +12V g) P602 between 6-5 -12V h) P603 between 1-2 +28V i) P603 between 3-2 -28V

Page 97

5.4 Output voltage check of MAIN board (BA03)

Pin number Voltage (DC)

+ a) P301 between 1-2 +5V b) P301 between 3-4 +12V c) P301 between 5-4 -12V d) P301 between 7-6 +6V e) P301 between 9-8 +12V

5.5 Output voltage check of DRIVER board (BA05)

Pin number Voltage (DC)

+ a) P501 between 1-2 +5V b) P501 between 3-4 +12V c) P501 between 5-6 +6V d) P501 between 7-6 +24V

5 - 2

5.6 Output voltage check of FGX/SCIS board (BA08)

Pin number Voltage (DC)

+ a) P801 between 1-2 +24V

5.7 Output voltage check of US unit (E100)

Pin number Voltage (DC)

+ a) P101 between 1-2 +5V b) P101 between 4-5 +12V c) P101 between 6-4 -12V d) P102 between 1-2 +28V e) P102 between 3-2 -28V

Page 98

5.8 Voltage adjustment of FGX/SCIS board (BA08)

Connect P801 and adjust voltage on FGX/SCIS board. Turn OFF the power for connecting or disconnecting cables.

Voltage adjustment of TP6 (DC)

a) Adjust the TP6 to be +8V (+7.95V to +8.05V) by VR4.

Voltage adjustment of TP12 and 4 (DC) a) Turn ON No.4 of SW1 while others are turned OFF. b) Adjust the TP12 to be 1.0V ± 0.01V by VR1 and adjust the voltage of TP4 to be 2V ± 0.02V

by VR2. c) Adjust the TP12 to be 2.076V ± 0.01V by VR1 and adjust the voltage of TP4 to be 4.60V ±

0.02V by VR3. d) Repeat the adjustment of VR2 and 3 to be required voltages. e) Turn OFF No.4 of SW1.

Voltage adjustment of TP12 and 10 (DC) a) Turn ON the No.2 of SW1 while others are turned OFF. b) Adjust the TP12 to be 1.0V ± 0.01V by VR1 and adjust the voltage of TP10 to be 1V ± 0.02V

by VR5. c) Adjust the TP12 to be 2.0V ± 0.01V by VR1 and adjust the voltage of TP10 to be 3.94V ±

0.02V by VR6. d) Repeat the adjustment of VR5 and 6 to be required voltages. e) Turn OFF No.2 of SW1. f) Apply a paint locker to VR2, 3, 4, 5 and 6. Connect all connectors on the FGX/SCIS board after adjustment.

5 - 3

5.9 Output voltage check of DISPLAY board (BA02)

Disconnect only P201 on the DISPLAY board. Turn OFF the power for connecting or disconnecting connectors.

Pin number Voltage (DC) Voltage as a guide (reference)

+ a) P201 between 1-2 +5V (+4.7V to +5.3V) b) P201 between 3-4 +12V (+11V to +13V)

Connect P201 on the DISPLAY board after checking. Turn ON the power and check that the display indication illuminates normally.

Page 99

5 - 4

5.10 Adjustment of irrigation height detection

potentiometer

a) Move up and down the irrigation pole so

that the indication comes to 46 cm. b) Remove the rear cover. (See 4.2.) c) Remove TC4×6

panel unit. d) Open the lower part of the left cover. (See

4.3.) e) Unscrew SB3×8 f) Screw SB3×8

pole operation range is more than 680 mm.

g) Check that the pole operation range is more

than 680 mm. How to check : Measure operation distance of the pole from bottom to top using a measuring

h) Assemble removed parts in the reverse order.

n=4

and remove the rear

n=2

on the pole unit.

n=2

at the position where the

device.

Pole

SB3×8

5.11 Adjustment of control unit

a) Set No.4 of DIP SW on the main board of the main body to ON (service mode). b) Turn ON the main SW of the main body. c) Insert the cassette. d) Set the DISPLAY indication to the I/A mode. e) Connect the digital multimeter between TP1 and GND of VACUUM SENS BOARD (BA26)

and adjust the voltage to become 1.6V ± 0.02V by screwing or unscrewing the brass round holder on the back (bottom) of the control unit. Moreover, fix the holder by HH screw and adjust the voltage to become 1.6 V under the situation. Insert and remove the cassette 3

times and check that the voltage is certainly 1.6V. Finally, remove the cassette. f) Set No.4 of DIP SW on the main board of the main body to OFF (normal mode). g) Turn ON the power of the main body. h) Connect the digital multimeter between R4 (at No.1 side of JP261) and GND. Then measure

the voltage. Regard the voltage as V1. (*V1 is about 5.4V.) i) Connect the digital multimeter between R8 (R9 side) and GND. Adjust the voltage to

become same as V1 using VR2. j) Connect the digital multimeter between TP1 and GND. Then measure the voltage. Regard

the voltage as V2. (*V2 is about 1V.) k) Connect the digital multimeter between D1 (A side) and GND. Adjust the voltage to become

same as V2 using VR1. l) Insert the cassette and set the I/A mode.

Measure the voltage between TP1 and GND. Regard the voltage as V3.

Page 100

5 - 5

m) Connect the multimeter between D1 (A side) and GND. Set the pressure gauge and the

injector to the tip of aspiration tube of cassette. n) Remove the injector and adjust the voltage to become same as V3 using VR2 under

atmospheric pressure. o) Regard the voltage when the pressure gauge indicates 408 gf/cm2 (300 mmHg) by pulling

the injector as V4. Regard the absolute value (|V4-(V3+1.2)|) of the difference with target

voltage as V5.

Remove the injector and adjust the voltage to become same voltage as V3 under returning

to atmospheric pressure using VR1 and VR2. Turn the VR1 and VR2 to following directions.

For V3+1.2>V4

Turn the VR1 clockwise and displace the voltage to become V3 - V5. Then turn the VR2 clockwise and adjust the voltage to become the same as V3.

For V3+1.2<V4

Turn the VR1 counterclockwise and displace the voltage to become V3 + V5. Then turn the VR2 counterclockwise and adjust the voltage to become same as V3.

p) Pull the injector again and measure the voltage when the pressure gauge indicates 408 gf/

cm2 (300 mmHg). q) Remove the injector and repeat step n), o) and p) so that the voltage becomes V3±0.01V

under atmospheric pressure, and also (V3+1.2)±0.01V under 408 gf/cm2 (300 mmHg). r) Apply a paint locker to VR1 and VR2.

5.12 Adjustment of FGX/SCIS mode

a) FGX

• Attach the intelligent pressure indicator to FGX connector and operate as follows.

Turn OFF the power. → Turn ON the MAIN board DIP SW No.4. → Turn ON the power.

• Select the FGX mode and start operation. Set the FGX pressure to 10 mmHg. Adjust the pressure to 10 mmHg by VR2 of BA08.

• Set the FGX pressure to 59 mmHg and adjust the voltage to 59 mmHg by VR3 of BA08.

• Repeat the above two steps till each values become as described. * Do not touch VR1.

b) SCIS

• Attach the intelligent pressure indicator to the SCIS connector.

• Select the SCIS mode and start operation. Set the SCIS pressure to 50 kPa by VR5 of BA08.

• Set the SCIS pressure to 140 kPa by VR6 of BA08.

• Repeat the above two steps till each values become as described.

• Set the pressure to 240 kPa and check that the pressure gauge indicates 240 kPa after adjustment.

Nidek CV-24000 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual