Question about NEC 1560M-BK 15" Flat Panel LCD Monitor
Both LCD monitors, 1560M and 1760VM exhibit dark screens at turn-on and boot. Pressing RESET or one of the other adjust keys elicits a VERY FAINT proper response. 1. Have reseated both ends of connector cable. 2. Have tried various computers. 3. Monitors have been stored for ~ 6 months in working area that was between 45 degrees F and 75 degrees F. The main circuit breaker to the service line was OFF, the power-strips feeding units were OFF, and there were voltage protectors present. NO OTHER MALFUNCTIONS IN ASSOCIATED COMPUTERS OCCURRED. 4. The 1560M showed a similar failure a year after it was purchased, and NEC serviced it under warranty. 5. Both units are just beyond the three year limit. 1560M S/N 37117816GA 1760VM S/N 39911240TA Rev 1B
This is the common bad capacitor problem. The caps have died inside, and they can be replaced. If you have basic electronics skills, you can go in, order replacement caps, and unsolder and resolder. If you can't do it yourself, you can take it into a shop.
Here is a link to the Cap plague that explains what happens in detail. But I repair these all the time with that symptom.
Posted on Apr 02, 2009
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