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Today's topics:
* Sony KV-32S40 Horiz. Drive Problem - 4 messages, 4 authors
http://groups.google.com/group/sci.electronics.repair/t/9d36b91df3536eb5?hl=en
* Hollywood Sex Videos - 1 messages, 1 author
http://groups.google.com/group/sci.electronics.repair/t/c2fbbde14062af10?hl=en
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TOPIC: Sony KV-32S40 Horiz. Drive Problem
http://groups.google.com/group/sci.electronics.repair/t/9d36b91df3536eb5?hl=en
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== 1 of 4 ==
Date: Tues, Oct 5 2010 4:35 pm
From: "Chris F."
This set is proving to be a tough fix. I picked it up in the trash a while
ago, and when I first tried it everything seemed to work fine. After about
half an hour though the picture went very dark and shrunk in on the sides.
The problem is permanent now and will not go away. All voltages on the
secondary of the flyback - HV, CRT filament, etc. are about 30% below normal
but the B+ is a solid 136V. All voltages from the power supply are good, and
there are no bad caps... it seems like the horiz. drive signal isn't strong
enough. I tried replacing the horizontal driver transistor as well as all
electrolytics in that area, and fixed some cold solder as well, but it made
no difference.
Any ideas?
== 2 of 4 ==
Date: Tues, Oct 5 2010 5:12 pm
From: "Mark Zacharias"
"Chris F." <zappyman@hotmail.com> wrote in message
news:4cabb64e$0$14790$9a566e8b@news.aliant.net...
> This set is proving to be a tough fix. I picked it up in the trash a
> while ago, and when I first tried it everything seemed to work fine. After
> about half an hour though the picture went very dark and shrunk in on the
> sides. The problem is permanent now and will not go away. All voltages on
> the secondary of the flyback - HV, CRT filament, etc. are about 30% below
> normal but the B+ is a solid 136V. All voltages from the power supply are
> good, and there are no bad caps... it seems like the horiz. drive signal
> isn't strong enough. I tried replacing the horizontal driver transistor as
> well as all electrolytics in that area, and fixed some cold solder as
> well, but it made no difference.
> Any ideas?
>
Did you resolder the horizontal drive transformer?
Mark Z.
== 3 of 4 ==
Date: Tues, Oct 5 2010 8:25 pm
From: "hr(bob) hofmann@att.net"
On Oct 5, 7:12 pm, "Mark Zacharias" <mark_zachar...@sbcglobal.net>
wrote:
> "Chris F." <zappy...@hotmail.com> wrote in message
>
> news:4cabb64e$0$14790$9a566e8b@news.aliant.net...
>
> > This set is proving to be a tough fix. I picked it up in the trash a
> > while ago, and when I first tried it everything seemed to work fine. After
> > about half an hour though the picture went very dark and shrunk in on the
> > sides. The problem is permanent now and will not go away. All voltages on
> > the secondary of the flyback - HV, CRT filament, etc. are about 30% below
> > normal but the B+ is a solid 136V. All voltages from the power supply are
> > good, and there are no bad caps... it seems like the horiz. drive signal
> > isn't strong enough. I tried replacing the horizontal driver transistor as
> > well as all electrolytics in that area, and fixed some cold solder as
> > well, but it made no difference.
> > Any ideas?
>
> Did you resolder the horizontal drive transformer?
>
> Mark Z.
After you run the set for a few minutes, turn it off and see how hot
the horizontal/flyback transformer is. If it is scorching hot, there
may be a shorted turn on the transformer, that will cause what you are
seeing..
== 4 of 4 ==
Date: Wed, Oct 6 2010 12:53 am
From: "N_Cook"
Chris F. <zappyman@hotmail.com> wrote in message
news:4cabb64e$0$14790$9a566e8b@news.aliant.net...
> This set is proving to be a tough fix. I picked it up in the trash a
while
> ago, and when I first tried it everything seemed to work fine. After about
> half an hour though the picture went very dark and shrunk in on the sides.
> The problem is permanent now and will not go away. All voltages on the
> secondary of the flyback - HV, CRT filament, etc. are about 30% below
normal
> but the B+ is a solid 136V. All voltages from the power supply are good,
and
> there are no bad caps... it seems like the horiz. drive signal isn't
strong
> enough. I tried replacing the horizontal driver transistor as well as all
> electrolytics in that area, and fixed some cold solder as well, but it
made
> no difference.
> Any ideas?
>
>
Sometimes a failing/ed non-polarised capacitor in the flyback area causes
that problem
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TOPIC: Hollywood Sex Videos
http://groups.google.com/group/sci.electronics.repair/t/c2fbbde14062af10?hl=en
==============================================================================
== 1 of 1 ==
Date: Tues, Oct 5 2010 9:50 pm
From: nasq
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in that website on Right side search box below click on image
and watch Videos in all angles. www.videoshollywood.tk
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