Re: BenQ E2200HD LCD monitor dead, no power LED

I just replaced the cap C807 and it still shows around 11.8v at Pin 7.
Also i just noticed a FUSE open [B](F802)[/B] located at the mainboard connector which connects to pin 3/4 VCC 5v (Image attached). I just shorted it with a piece of wire and checked the pin3/4 of mainboard connector shows 4.7v and the C807 at Pin7 shows 14.5v. Power LED still doesn't show up.

I also noticed there were no fuse connections for Pin1/2(USB) [B]F803[/B] and [B]F804[/B]. Im not sure if they are required or has been removed. Is...

Re: BenQ E2200HD LCD monitor dead, no power LED

Im attaching better images for front/back view as the previous one is not clear....

[B]Problem:[/B] BenQ E2200HD LCD which had suddenly stopped working, no power LED

[B]Observations: [/B]
1) LCD monitor went off suddenly, no blown sound, power LED stays off.
2) Service station confirmed power supply board was the problem, but i didnt want to replace the full board just for few defective components.
3) Power supply board all caps seem to be good by observation, no blown fuses
4) 300 V DC on primary cap
5) After checking the BENQ LCD repair manual guide for troubleshooting steps (also attached image of circuit board),
it...

Re: New Members - please post your introductions here

Hi from India, have only basics of electronic knowledge, needed help in fixing an powersupply board for LCD. Good to see an active community in this forum.