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K Laser abnormal(For S&D board)
No laser
Does normal voltage at pin 25 of U2?
YES
YES
Does normal voltage at 24,22pin of U2?
YES
Does normal Voltage at cathode of D2,D3?
YES
Normal
All manuals and user guides at all-guides.com
1.Check connections between M5705 and
Sp3721
2.check Sp3721 and peripheral components.
Check Sp3721 and peripheral components
Check Q1 Q2 and peripheral components
Change pick up
17
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