PVM-14M4E and BVM-14M4DE issues

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donluca
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Joined: Sat Feb 28, 2015 8:51 pm
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PVM-14M4E and BVM-14M4DE issues

Post by donluca »

Hi everyone!

I'm creating a dedicated thread to the issues I'm having with my Sony monitors hoping that the forum's gurus show up with some help. :)

Both PVM and BVM work but they have some issues:

The BVM takes a couple of minutes to get the "right" geometry (when I power it up the geometry is garbled and then stabilizes after some time) and there are RGB lines over the screen (they shouldn't be visible).

I do believe someone already said in this thread that both of these issues are due to failing capacitors and I have absolutely no problem recapping a monitor (hell, I've recapped countless audio equipment, even very old components) but this thing has >140 electrolytic capacitors in it, not counting ceramic and SMD ones.
Do I really have to replace all of them?
It can be definitely done but that would be quite an investment in components and time.

Can anyone point me to what caps should be replaced in particular?

EDIT: a kind user told me which capacitor is the culprit of the RGB lines across the screen! :)
Now there's only the problem of the geometry which takes a bit of time to get right.



The PVM, on the other hand, has no geometry issues but it has the white slightly "pinkish" and, more irritating, light colours produce a "dark halo" on their right.
This picture will explain this last problem better than my bad description (not a native english speaker, sometimes I struggle with precise, technical descriptions).
Spoiler
Image
(sorry for the bad quality, I shot this with my mobile phone)
Also, there are red stripes in white, bright areas as you can see in those pics:
Spoiler
Image

Image

Image
Interestingly, they go away if I turn the brightness or contrast down.

Again, I've read that those issues are related to failing caps, which brings forth the question already asked before: do I really need to replace all of the caps?

Honestly, I can kind of live with these problems but I'd really, really prefer to get them sorted out in a permanent way.

Both monitors have been tested with a Japanese Mega Drive with S-Video, an European Nintendo64 with Composite and a European Wii with Component.

Sorry for the wall of text and thanks for your patience! :)
RansidPowerup
Posts: 1
Joined: Fri Jun 10, 2016 9:54 am

Re: PVM-14M4E and BVM-14M4DE issues

Post by RansidPowerup »

Hey! i have the same issue with the 3 RGB lines.
Any chance what cap needs replaceing and where? i see you've found out which ones.
I cant find any info on this, then "Look on google" ... eugh! :cry:
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