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M TOC abnormal(For S&D board)
TOC does not read
Limited switch is closed.
Is laser on?
Is FOK normal?
YES
Does normal A, B, C, D signal at 11-14
pin of U2?
YES
Does normal RFIN at 2 pin of U1?
YES
Normal
All manuals and user guides at all-guides.com
NO
NO
NO
Refer to laser guide
Check slide motor and connections to decoder
board.
1.Check connections between 11,13 pin of U2
and 13pin of CN2
2.Check 12,14pin of U2 and 15pin of CN2
3.Replace pickup
1.Check connection between U1 and U2.
2.Check U2 and peripheral components
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