Thursday, March 27, 2008
Viewsonic VA800 and VG175 repairs revisited.
My web site has had how to repair these Viewsonic monitors when they have garbage on the screen. You replace C19 with a 1 uf to 4.7 uf at 16 volts capacitor. Now I want to add that if it has a reddish picture with green streaks to the right of the text, you can replace C67. Again use a 1 uf to 4.7 uf at 16 volts capacitor. The capacitors should be available at Radio Shack. I have also encountered one monitor that would not turn on for 5 to 10 minutes. I replaced the capacitor that is just to the right of the C67 labeled IC to fix it. I think it was 22 uf at 16 volts but it might have been 47 uf. I have only encountered that problem once.