Re: Need advice for two non-working IIe/IIc monitors

[Polymorph <polymorph69@hotmail.com>]

On Nov 4, 7:53 pm, Toinet <antoine.vig...@laposte.net> wrote:
> Dear All,
> From previous auctions, I have bought a IIe and a IIc monitor (with
> its stand) and both do not display any image and I need your advice
> about the problems and a potential repair (remember I am in Paris,
> France and I do not want to send my monitor to the USA ;-) if that is
> worth it.
>
> All tests have been performed with my IIe computer, validating the
> display output with a third and working Zenith monitor, I can say the
> IIe outputs video normally.
>
> The IIe monitor (model Monitor II A2M2010P):
> - turns on when plugged in
> - displays no image.
>
> The IIc monitor (model G091S):
> - turned on when plugged in
> - displayed the IIe image
> I was happy and then... pschitt! Smoke came out from the monitor. I
> turned it off and I have to admit I do not really want to turn it on
> again.
>
> What can I do? I mean I am not an engineer,  can change a fuse and
> that is all. I may sell it on eBay for pieces. Bringing them to a TV
> repair may cost more money than the monitor, I do not know if that is
> worth the try unless some of you already encountered such issues and
> may explain how to fix them.
>
> I thank you in advance,
>
> antoine

Antoine,

Not enough to go on with the first monitor (the //e one), but the //c
monitor sounds like a capacitor has blown in the monitors power supply
- probably one of the mains filter capacitors. This requires
replacement of the blown capacitors - meaning de-soldering the blown
capacitor(s) and replacing them with new ones. Whilst the procedure is
fairly straight forward for someone with some soldering skills (I've
fixed a few monitors of late), I wouldn't recommend it if you are
uncomfortable - it can be dangerous in this area, as there are some
pretty high voltages being stored in those capacitors, and they need
to be fully discharged before you can replace them. Usually, leaving
the monitor turned off and unplugged for a few hours will do the
trick, but I have heard of capacitors holding their charge for much
longer than this. So, if you are uncomfortable, seek help from someone
with the know-how as others have suggested.

Cheers,
Mike