JRC JMR-92 Series Field Service Manual page 637

4.3.6.2 Replacing the Operation Circuit B: CCK-1059
[Required Tools]
The tools shown in the following table are required for replacement work.
No. Name
1 Phillips screwdriver
Before conducting replacement work, turn OFF the circuit breaker for the power supply of the
display unit.
Do not lose the screws as they will be needed again.
Step 1 Remove the screws of the KOPU and take out.
Remove the screws (M4: 4 locations) inside the four screw covers at the top and bottom of the
KOPU, and take out it from the mounting frame. For details, please refer to the "Replacing the
Keyboard Operation Unit: KOPU NCE-5625."
Step 2 Remove the knobs of all the dials of the KOPU.
Remove the knobs of all the dials (EBL, RAIN, SEA, GAIN & VRM) of the KOPU. The knobs can
be removed by pulling them out upward.
Chapter 4 Replacement procedure
Table Required Tools
Size
Size #2
4-416
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