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SCR-140(A4)-en 99.3.15 8:40 AM ˘ ` 10
No laser on
Open and close tray(Disc insettion)
IC101 10pin changes from 0V to +3.3V?
IC101 9pin changes from 4.2V to 3.6V?
CN501 3pin changes from 2V to 2.5V?
CN501 2pin changes from 0V to 0.7V?
Y
Y
Y
Y
Y
Replace pick-up
N
Refer to ÔNo tray open/closeÕ
N
Refer to ÔCheck power source and initial stateÕ
N
Check IC101 power input and replace.
N
Check D101, L101, Q102, R102, C103 soldering
N
Check Pick-up FPC connection state
16
10
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