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Samsung DVD-V5600 Service Manual page 80

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Troubleshooting
NO LD CD ON
(DVD Section)
No
DIC1-157 is 3.3V?
Check DIC1
Yes
Waveform)
(Q2 Emitter
Q2 emitter terminal
voltage and 3.6V real voltage
difference into 10ohm.
No
Open check in related circuit.
Current exceeds 0.1A?
Yes
LD out pick-up replace.
5-24
Samsung Electronics

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