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L Turn abnormal(For S&D board)
Disc doesn't turn
Check if voltage of H- and H+,H1-and H1+,H2-
and H2+,H3- and H3+ of CN3 are different.
YES
Check If voltage of 11 and 12 pin of
U9 are different.
YES
Check if voltage of 26 pin of U2 is normal
YES
Check if voltage of 13,9 pin of u2 is normal
YES
Normal
All manuals and user guides at all-guides.com
NO
NO
NO
NO
Check connection of mechanism
Check connections between Ba 5954 and
CN6
check Ba5954 and peripheral components
Check connections between Sp3721 pin 26
and Ba5954 pin 4,27
Check Sp3721 and peripheral components.
Check connections between U2 5,23 pins and
U1 pins 13,9
Check U1 and peripheral components
18
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