Re: Sony KV-25K5U (FE-1) Problem

From: james (thomas.bennet12_at_ntlworld.com)
Date: 02/09/05 

Date: Wed, 09 Feb 2005 23:45:38 GMT

Sony normally use a 680uf 40- 65 volt elect cap to couple the frame o/p to
the coils, sounds as if it has dried up.
Tom
"Prosonman" <prosonman@hotmail.com> wrote in message
news:cu7hf0$bf6$1@sparta.btinternet.com...
> Hi All,
>
> I'm an electronics engineer but know very little about T.V repair and was
> hoping someone out there may be able to point me in the right direction to
> fixing a problem with my T.V.
>
> The problem or problems may be connected, firstly the picture quality has
> become quite poor, in that it is no longer a sharp picture but I would say
> out of focus particularly on the sides. This is very apparent on writing
> on
> the screen that is virtually illegible and appears to have like a red
> ghosting effect on every letter.
>
> The other problem is a brightness problem, it may sound obvious but it
> gets
> brighter when the image on screen has a lot of white in it, even the
> writing
> on screen becomes clearer. For example on a news channel there is a band
> at
> the bottom of the screen giving information, most of the time I find this
> hard to read but when the picture above goes to a nice bright outdoor
> scene
> suddenly the writing becomes legible, not perfect but at least I can be
> read
> it.
>
> The T.V is a Sony KV-25K5U that I believe is also called an FE-1, I don't
> know if the problem is a faulty tube, a poor HT or bad power supply. Any
> help would be greatly appreciated and where to get circuit diagrams would
> be
> helpful.
>
>
> Many thanks
> Richard.
>
>

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