Re: Bad Benq 48.L1A02.A31 board for Hp1955L monitor



Yes special thanks to RETIREDCAP[U][B]S[/B][/U]Re: Bad Benq 48.L1A02.A31 board for Hp1955L monitor



Yes special thanks to RETIREDCAP[U][B]S[/B][/U]...

Re: Bad Benq 48.L1A02.A31 board for Hp1955L monitor

Thanks a lot to everybody!

Finally I repaired my LCD!
I have changed the two transistors C5705 et the MOSFET J598 and the Picofuse PF701 and I soldred also HT transformers!
special thank to "Retiredcap"

Re: Bad Benq 48.L1A02.A31 board for Hp1955L monitor

Hi everybody!
I have the same problem, I checked the transistors and i found that the Q815, Q816 are died and also the Q812 was shorted! I replaced the three parts and I still have the same problem no displaying on screen just a green light of the LED0...!!! I tried to see on the IC : TL1451A at the PWM output I have no signal and I measured on the pin 9 (+Vcc) and I found 0v...!!!??? so please if someone can help me to find out the solution.!
Thanks a lot