Re: Benq Q9w5 lcd monitor query regarding transistors



Hi Sabre

No I haven't tested it for output. I'm a little hesitant to plug it into 240v to test it with all the bulging capacitors on it. One even has a small hole in the top (C701). I did test it for resistance and I get readings across each of the legs.

Should I wait till I have replaced the caps before testing it?...

Hi All

Have read a lot of information on this site regarding the capacitor and transistor problems with Benq lcd monitors. I have two of them, one is not working, the other is starting to fail. They are both turning off 2 seconds after turning on. I have removed the card out of one and found all the caps to be swollen and some heat discolouration on the board around the transistors. It lokks (from my attempts with my meter), that two of the transistors are toast (1 & 2 on the attached picture) and one still okay (No.3 on attached picture). I tested with my meter set at 20k as...