Monitor Viewsonic Optiquest Q19WB

[Robin Bull]

The screen and power Led come on for 2 or 3 seconds then off continually,PCB 1LP1-025 caps changed C501/C807/C815/C817/C818/C820/C827 still as before, any ideas.
Regards Robin Bull

 

[Arouse1973]

Sounds like a power supply issue. May want to check the capacitors. I have seen lots of underated capacitors on monitors power supplies.

Adam

 

[Robin Bull]

Hi Adam
I ordered the capacitor repair kit 7 in all from ccl-la.com,which as stated I fitted but still the display cycles on and off. Many people have asked for help with these Monitors but knowone seems to come up with a sensible answer to the repair.
Kind regards Robin

 

[Arouse1973]

Yes I had a quick look and yes the capacitors seem to be a culprit for some of them. Other than checking for damaged or blown components it's going to mean getting a schematic diagram of the circuit and fault finding from there. This is not going to be easy unless you have done this sort of thing before.
Adam