3-16
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Only for training and service purposes.
ONE POINT REPAIR GUIDE
SECONDARY UNIT
3. BUTTON ERROR
Button doesn’t work.
3-1. Solution
Replace KEY or MAIN board
3-2. How to troubleshoot (Countermeasure)
1) Check the cable connection with MAIN to KEY board (CN100).
2) If cable connection ok, replace KEY board.
3) If KEY board is OK, replace MAIN board.
3-3. Service hint (Any picture / Remark)
< KEY board bottom view >
CN100
CN100
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