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J Focus abnormal(For S&D board)
No focus
Does normal voltage at FO+
and FO- of CN2?
YES
Does normal voltage
at U9 pin 14,7?
YES
Is 28,30,35,58pin of U2 DC5V?
YES
Is normal voltage at 18,26,27pin of U2?
YES
Does data output at U2 pin42?
YES
Normal
All manuals and user guides at all-guides.com
NO
NO
NO
NO
NO
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.
Check U2 and peripheral components.
Check U3 and peripheral components
1.Check connection between U2 and U9
2.Check connection between U2 and peripheral
components.
16
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