No
Yes
H Laser abnormal
No laser
Normal
Yes
Yes
No
No
Is LD pin of XS14(19,23) 4.5V?
Check connection between pickup
and decoder ass'y.
Replace pickup.
Does voltage at 125,126 pin of D003?
Check connection between 125,126 pin of
D2890 and LD pin of XS14.
Check D2890 and peripheral components.
Does noraml voltage at 1,2,5,67,69,
109,114,120 pin of D003?
Check D2890 and peripheral components.
