Panasonic TC20S10A

  • Thread starter Maureen Dickson
  • Start date
M

Maureen Dickson

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Picture on this TV has collapsed to a thin line (white) in the centre,
across the width of screen.
I have no diagram!
Any clues please?
 
"Maureen Dickson" <booyanga@bigpond.com> wrote in message
news:dj68d.13568$5O5.7317@news-server.bigpond.net.au...
Picture on this TV has collapsed to a thin line (white) in the centre,
across the width of screen.
I have no diagram!
Any clues please?
Click to expand...
first off don't life the set on for too long while this fault exsists
otherwise you'll
find that you have a nice line permently on the screen.


Check that the horizontal output tranny or drive is not cactus.

Mitch




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"Mitch" <mmoules@xyzabcbigpond.net.au> wrote in message
news:UIK8d.15842$5O5.9266@news-server.bigpond.net.au...
"Maureen Dickson" <booyanga@bigpond.com> wrote in message
news:dj68d.13568$5O5.7317@news-server.bigpond.net.au...
Picture on this TV has collapsed to a thin line (white) in the centre,
across the width of screen.
I have no diagram!
Any clues please?

first off don't life the set on for too long while this fault exsists
otherwise you'll
find that you have a nice line permently on the screen.


Check that the horizontal output tranny or drive is not cactus.
Click to expand...
Er, I think you mean VERTICAL output. This could be either an
IC or a couple of transistors, can't recall offhand.
Could also be dry joints or a capacitor, or even an o/c resistor.

Geoff in Oz
Mitch




---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.773 / Virus Database: 520 - Release Date: 5/10/04
Click to expand...
 
"The CO" <the_xo@yahoo.com.au> wrote in message
news:2sija6F1ldgd4U2@uni-berlin.de...
"Mitch" <mmoules@xyzabcbigpond.net.au> wrote in message
news:UIK8d.15842$5O5.9266@news-server.bigpond.net.au...

"Maureen Dickson" <booyanga@bigpond.com> wrote in message
news:dj68d.13568$5O5.7317@news-server.bigpond.net.au...
Picture on this TV has collapsed to a thin line (white) in the centre,
across the width of screen.
I have no diagram!
Any clues please?

first off don't life the set on for too long while this fault exsists
otherwise you'll
find that you have a nice line permently on the screen.


Check that the horizontal output tranny or drive is not cactus.

Er, I think you mean VERTICAL output.
Geoff in Oz
oops hangs head in shame :)
Click to expand...

Not enough coffe that morning :)

Mitch


---
Outgoing mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
Version: 6.0.773 / Virus Database: 520 - Release Date: 5/10/04
 
On Mon, 04 Oct 2004 06:44:25 GMT, "Maureen Dickson"
<booyanga@bigpond.com> put finger to keyboard and composed:

Picture on this TV has collapsed to a thin line (white) in the centre,
across the width of screen.
I have no diagram!
Any clues please?
Click to expand...
The problem is called "vertical collapse":
http://repairfaq.ece.drexel.edu/REPAIR/F_tvfaq5.html#TVFAQ_016

Follow the yoke cable back to the PCB. You will probably see a
vertical output IC on a heatsink. I'm guessing it will be a Matsushita
part, probably with an "AN" prefix. The IC's datasheet may contain an
application circuit. Check the fusible resistor that supplies power to
this chip. Also check for an OC yoke.


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
 
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