Samsung DVD-P355B/XEL, DVD-P355B/XEU, DVD-P355B/XEH, DVD-P355B/XEG No Ld Cd On, Troubleshooting

Models: DVD-P355B/XET DVD-P355B/XEV DVD-P355B/FOU DVD-P355B/XEH DVD-P355B/XEG DVD-P355B/XEE

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NO LD CD ON

NO LD CD ON

RIC1-22 is 5V?

Yes

No

Troubleshooting

Check RIC1

Divide RQ2 emitter terminal voltage and 5V real voltage difference into 10ohm.

Yes

Current exceeds 0.1A?

Yes

No

Open check in related circuit.

LD out pick-up replace.

Samsung Electronics

5-3

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Samsung DVD-P355B/XEL, DVD-P355B/XEU, DVD-P355B/XEH, DVD-P355B/XEG, DVD-P355B/XET, DVD-P355B/XEE No Ld Cd On, Troubleshooting