TV picture distorted

PE

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Jan 16, 2011, 9:11:52 PM1/16/11

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Hi all: My 15-yr old Toshiba 27" crt television has recently developed a
problem which is that approx 15 minutes after being turned on, the picture
bows inward on the left and right sides. Then, after a few more minutes,
the picture resolves and returns to normal and remains perfect for the
remaining time the tv is on. If the symptom described above means the crt
is wearing out, so be it, the set will soon be history. However, I'm
wondering whether some other, replaceable part, might be going bad and
causing the temporarily distorted picture.

Would appreciate any suggestions re. probable cause(s) of symptom described
above. Am basically novice, but handy and with soldering skills, and have
done a few simple tv repairs in the past. Thanks for your replies!

Phil Allison

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Jan 16, 2011, 9:31:47 PM1/16/11

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"PE"

** The symptoms suggest a cracked solder joint that is expanding as the temp
rises.

But you failed to mention how quickly the symptom arrives and leaves - so
it is not clear if my scenario applies.

.... Phil

``ZACK``

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Jan 17, 2011, 2:10:13 AM1/17/11

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"PE" <p...@ix.netcom.com> wrote in message
news:_PednQsdJv8fOK7Q...@earthlink.com...

horizontal coupling cap
faulty yoke
or flyback tranformer circuit
pincushion transformer circuit
or try here
http://www.devileye.net/catalog/boiling_liquefied_gas/side_pincushion_correction_modulator_circuit.html

or
http://www.google.com.au/search?hl=en&client=firefox-a&hs=bCP&rls=org.mozilla:en-US:official&channel=s&&sa=X&ei=0ugzTaTRA4K6vwPtzYmpCw&ved=0CBkQvwUoAQ&q=pincushion+transformer+circuit&spell=1

hrho...@att.net

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Jan 18, 2011, 4:34:55 PM1/18/11

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On Jan 17, 1:10 am, "``ZACK``" <youwillfine...@home.com.au> wrote:
> "PE" <p...@ix.netcom.com> wrote in message
>
> news:_PednQsdJv8fOK7Q...@earthlink.com...> Hi all: My 15-yr old Toshiba 27" crt television has recently developed a
> > problem which is that approx 15 minutes after being turned on, the picture
> > bows inward on the left and right sides. Then, after a few more minutes,
> > the picture resolves and returns to normal and remains perfect for the
> > remaining time the tv is on. If the symptom described above means the crt
> > is wearing out, so be it, the set will soon be history. However, I'm
> > wondering whether some other, replaceable part, might be going bad and
> > causing the temporarily distorted picture.
>
> > Would appreciate any suggestions re. probable cause(s) of symptom
> > described above. Am basically novice, but handy and with soldering
> > skills, and have done a few simple tv repairs in the past. Thanks for
> > your replies!
>
> horizontal coupling cap
> faulty yoke
> or flyback tranformer circuit
> pincushion transformer circuit

> or try herehttp://www.devileye.net/catalog/boiling_liquefied_gas/side_pincushion...
>
> orhttp://www.google.com.au/search?hl=en&client=firefox-a&hs=bCP&rls=org...

DIdn't you get enough relies on alt.home.repair????

PE

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Jan 19, 2011, 3:59:35 AM1/19/11

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Why ask a question to which you obviously already know the answer? What's
your point?

<hrho...@att.net> wrote in message
news:0a9046ac-8c12-4177...@t23g2000vby.googlegroups.com...

Phil Allison

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Jan 19, 2011, 5:31:26 AM1/19/11

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"PE"

>
> Why ask a question to which you obviously already know the answer? What's
> your point?

** The only questions really worth asking someone are ones where you * know
* what the answer is.

Think about it.....

..... Phil

b

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Jan 21, 2011, 7:39:34 AM1/21/11

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resolder the connections of the coils in the E-W correction circuit,
common fault. Nothing to do with the tube. Do be aware of high
voltages in tvs, see the www.repairfaq.org before proceeding.
good luck
-B