PVM partial vertical collapse (edit: problem is back...)

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jd213
Posts: 503
Joined: Mon Feb 01, 2016 9:03 am
Location: Pennsylvania

Re: PVM partial vertical collapse (edit: problem is back...)

Post by jd213 »

tongshadow wrote: Mon Sep 18, 2023 10:42 pm
jd213 wrote: Mon Sep 18, 2023 9:12 pm The picture always looked great, but the front panel buttons did go dim right after I got it.
That's gonna be the capacitor C1601 and others around the area near the speaker:
https://i.imgur.com/rN5HmK3.jpeg

Those small capacitors on the G Board often go bad due to the heat and being small (absorb more heat).
Hmm, that one (and some of the others around it) was already replaced when I did Pat's cap kit, but I think the buttons were still dim for the couple of hours that my PVM worked until it started having the partial collapse again.

Will try measuring it again when I get the other replacement caps and voltage regulator in from Mouser. Thanks for the info!
jd213
Posts: 503
Joined: Mon Feb 01, 2016 9:03 am
Location: Pennsylvania

Re: PVM partial vertical collapse (edit: problem is back...)

Post by jd213 »

Found someone with the same problem, they fixed it by replacing the G board:
https://www.youtube.com/watch?v=KaQ8WRkJsJ8

Unfortunately I don't have a spare G board myself, and a full recap (and the replacement of the IC included with Savon Pat's cap kit) didn't fix mine, so hopefully I can go over the G board and figure it out someday.
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