Casio CTK-691 Service Manual page 11

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4. Remove 4 screws, 6 connectors (JA, JB, JC, JD, JE, JF) and then the PCB ASS'Y (MA1M).
Connectors
Note: How to attach a HEAT-SINK
Insert aTRANSISTOR into the PWB after attaching a HEAT-
SINK to the TRANSISTOR.
Be soldering sfter that.
5. Remove 6 screws and then the LCD ASS'Y (LCD1M).
Screws
Screws
6
4
1
5
Screws
Connectors
HEAT-SINK
TRANSISTOR
3
2
Note: Tighten the screws in the order from 1 to 6 when reassembling.
Connectors
— 9 —

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