Having problems with your ViewSonic OptiQuest Monitor ?

Optiquest q20wb Screen goes blank after powering on

\015 The other day I turned the screen back on, the computer was still running, and I got my desktop for about 2 seconds then the screen goes blank. I've read previous post that were similar to this problem that stated the issue was in the power supply and the fix was to replace bulging capacitors. I pulled the power supply and found 3 - 25v 470 mF can style caps and 2 - 10v 1000mF can style cars. I replaced the 470's but this didn't solve the problem. I'm currently trying to hunt down the 1000's and see if this resolves the issue. My question is; Has anybody had this problem on a q20wb and is someone might know if there is a possible transitor problem. How could/would I check this?\015

Answers :

I'd like to report a success story. I had this same problem with my Q20WB. It sat for over a year in my garage. I eventually bought replacement capacitors, soldered them in, and now it works. You can find kits with the right capacitors preselected, or if you feel like it you can also buy them individually.

good luck
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