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From: PeterD on 28 Jan 2010 08:30
On Thu, 28 Jan 2010 08:27:54 +0000, Kroma <nospam(a)nospam.net> wrote:

>On 28/01/2010 03:05, William Sommerwerck wrote:
>>> Sometimes the picture is perfect but on some scenes,
>>> about half a second to a second after the scene has
>>> changed on screen, the colour suddenly either develops
>>> a peachy-pink tone or appears to over-saturate. It
>>> depends on what the picture on-screen is.
>>
>> In what way?
>>
>
>It's difficult to say but it is certainly worse when the picture is
>brighter.
>
>>> This is also occurring with menus and on all video inputs.
>>
>> That pretty much leaves out the color demodulator.
>>
>> "Something" is wrong in (probably) the red amplification, or the red gun of
>> the CRT. You'll have to put a 'scope in the path and see what's fluctuating.
>
>Unfortunately I'm not brave enough to rummage inside a CRT tv and risk
>death. Is this likely to be something that's easily fixed and would it
>tend to be costly?

Personally, I'd guess the latter. Finding service people today is
hard, good service people, almost impossible, reasonably priced
service people... Well, you get the picture. <g>

If you are unwilling to touch it inside, you are limited in what you
can do.

One thing might be to turn it off, unplug it, and let it sit for a few
days to allow any charged capacitors to discharge. Then open it and
reseat all the connectors you can find (carefully). That may help.
From: b on 29 Jan 2010 07:54
On Jan 28, 12:29 am, Kroma <nos...(a)nospam.net> wrote:
> Hi,
>
> After having a perfect picture from day 1, my 4 year old Sony Wega
> KD32DX51 CRT tv appears to have suddenly developed a fault.
>
> Sometimes the picture is perfect but on some scenes, about half a second
> to a second after the scene has changed on screen, the colour suddenly
> either develops a peachy-pink tone or appears to over-saturate. It
> depends on what the picture on-screen is. This is also occurring with
> menus and on all video inputs.
>
> Any advice on what is likely to be wrong, how it can be fixed, and how
> much a repair is likely to be would be much appreciated.
>
> Many thanks,
>
> Kroma, UK

look around your area for an old-school tv repair place. Or see yellow
pages. avoid those ads for multiple services, they just pass you thru
a call centre and inflate the prices. And take it in, a call out will
be a fortune!
-B
From: John-Del on 29 Jan 2010 19:09
On Jan 27, 6:29 pm, Kroma <nos...(a)nospam.net> wrote:
> Hi,
>
> After having a perfect picture from day 1, my 4 year old Sony Wega
> KD32DX51 CRT tv appears to have suddenly developed a fault.
>
> Sometimes the picture is perfect but on some scenes, about half a second
> to a second after the scene has changed on screen, the colour suddenly
> either develops a peachy-pink tone or appears to over-saturate. It
> depends on what the picture on-screen is. This is also occurring with
> menus and on all video inputs.
>
> Any advice on what is likely to be wrong, how it can be fixed, and how
> much a repair is likely to be would be much appreciated.
>
> Many thanks,
>
> Kroma, UK


Simple problem, and common for Sonys. You have a bad CRT. Internal
leakage is a hallmark of recent Sony CRT models.

From: Kroma on 4 Feb 2010 19:46

> After having a perfect picture from day 1, my 4 year old Sony Wega
> KD32DX51 CRT tv appears to have suddenly developed a fault.
>
> Sometimes the picture is perfect but on some scenes, about half a second
> to a second after the scene has changed on screen, the colour suddenly
> either develops a peachy-pink tone or appears to over-saturate. It
> depends on what the picture on-screen is. This is also occurring with
> menus and on all video inputs.
>

Thank you for the advice.

Next question - is it possible for a bad CRT to get better with time? 2
weeks on and the fault isn't nearly as noticeable now, and it's not just
because I've got used to it!


Kroma
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