Nidek Medical CP-690, Service Manual

Page: 27 / 70

5 - 5
5.3 Replacement of the Sensors
5.3.1 Replacement of the chart sensor
Replacement part: Chart sensor (33155-EA05)
1. Remove the top cover ASSY. (See 5.1.)
2. Disconnect the connector from J6 on the BA01 board.
* Cut the tie wrap (T18R) which ties the cables of the chart sensor.
3. Remove the disk cover (M030). (See 5.1.)
4. Unscrew BS3 × 6
ZnC
(n=2) to remove the
chart sensor and sensor fitting plate
(M009).
5. Unscrew PC3 × 6 (n=2) from the sensor
fitting plate (M009) and replace the chart
sensor (EA05) with a new one.
* Check that the shading plate of the mask
disk does not interfere with the mask
sensor.
6. Assemble the removed parts (except for the top cover) in reverse order.
* Write the connector number “P6” on the connector of the replaced chart sensor with an
oil-based ink (black).
* Tie the wiring with the tie wrap (T18R) in its original position. (See “7.2 How to carry out
the wiring”.)
7. After performing “6.2 Adjustment of the sensor voltage”, remount the top cover.
ＺｎＣ
センサー取付板
チャートセンサー
ＰＣ３×６
２
２
ＢＳ３×６
BS3×6
ZnC
2
Sensor fitting plate
Chart sensor
PC3×6
2