Re: Viewsonic VT2430 fluctuating 5V rail
Unplugged the lvds cable and I still hear the throb in the speakers and the 5v rail goes from 4.8V to 5.2V back to 4.8V back to 5.2V constantly like a tic tac and the blue led is shimmering as if it doesn't like something!
I thought of something R_J, tell me what you think. In the schematics there is a line called 5Vamp which I think is the one at fault. If I trace in the schematic everywhere this trace passes and test all electrolytic capacitors along the way (by pulling them out and verifying them with my ESR tester) do you think that could be useful, that I might hit the bad one if it is a capacitor doing this?
Unplugged the lvds cable and I still hear the throb in the speakers and the 5v rail goes from 4.8V to 5.2V back to 4.8V back to 5.2V constantly like a tic tac and the blue led is shimmering as if it doesn't like something!
I thought of something R_J, tell me what you think. In the schematics there is a line called 5Vamp which I think is the one at fault. If I trace in the schematic everywhere this trace passes and test all electrolytic capacitors along the way (by pulling them out and verifying them with my ESR tester) do you think that could be useful, that I might hit the bad one if it is a capacitor doing this?
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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