No focus
Does normal voltage at FO+
and FO- of CN2?
Does normal voltage
at U9 pin 14,7?
Does data output at U2 pin42?
Normal
J Focus abnormal(For S&D board)
1. Check connection cord..
2. Replace pickup
1.Check connection between 14,7pin of BA5954
and FCS+,FCS- of CN2
2.Check if Y3 normal operation
3.Check BA5954 and peripheral components.
1.Check connection between U2 and U9
2.Check connection between U2 and peripheral
components.
Check U2 and peripheral components.
Is 28,30,35,58pin of U2 DC5V?
Is normal voltage at 18,26,27pin of U2?
Check U3 and peripheral components
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
16
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