Hi
I have an FP71g screen that turns off when my pc is connected. My kids lcd screen does not cause this same problem.I didn't relise they have a 3 year warranty and took it apart so now i'm stuck trying to fix the problem.
It sounds like a power supply problem but i can't see any sign of component damage. Does anyone have the power circuit diagram or any suggestions.
Thanks in advance
I have same problem in BENQ Q7C5 LCD, If you fine the solution please write on my mail hussainkapasi@hotmail.com
Posted on Sep 05, 2012
If it's a 71g and not 71g+ resolder transistors 2sc5707 on invertor board along with grey condensers and inverter transformer.This should solve the problem if it was display shutting off with power led remaining on.Otherwise check power section.
Posted on Feb 25, 2008
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Posted on Jan 02, 2017
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Thanks for your comments, I contacted the repair people to try and get some info. about repairing it and they said they can still repair it under warranty even though i took it apart.So i've taken it to them.
Thanks again i can let you know what they find.
They repaired the screen under warranty and this is what they put on the report.
Replaced faulty transistors and caps in the power supply and resoldered dry joints onthe power pcb .
I hope this helps someone.
Thanks
La pantalla no ilumina pero el video se ve
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