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Dave[_4_] Dave[_4_] is offline
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Default Color bleeding on 19" Toshiba TV


"Deke" no wrote in message
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"pdp11tech" wrote in message
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I have a transistorized Toshiba 19" color TV that I purchased in 1984.
It has worked quite well over the years, but recently has been
exhibiting a symptom which I would describe as a horizontal "bleeding"
of color under certain conditions.

Specifically, bright images on the screen (such as white shirts,
brightly-lit windows, white lettering, etc.) will exhibit a bluish
bleeding or tearing effect, always horizontally to the right of the
bright object. The picture is otherwise very good and stable, with
good contrast, color, and brightness.

Is this likely to be cause by some kind of adjustment out of whack?
Components (maybe condensers?) going bad? As mentioned, this is a
transistor set so I know it's not a weak tube causing the problem.
Thanks for any help with this!


picture tube (CRT) showing signs of age, IMO.
Time for a new TV. After 23 years, I believe you've got your money out of
the Toshiba.


If the picture tube is still bright, and has good color balance, i.e. no
missing single red, green, or blue, the tube is likely fine. The age of the
TV really doesn't mean anything with regards to tube life if the set has had
infrequent use.

If you've got a few hours, I'd replace all of the electrolytics. It'll
likely cost you less than $20 in parts. If you'd rather a newer set, you
can pick up a new-ish CRT set for practically nothing these days at any pawn
shop or secondhand store. I was at the dump the other day and they had
hundreds of new-looking sets on pallets, shrink-wrapped slated to go to some
recycling facility... people actually throw out perfectly good televisions
because they want a flat-screen. The current TV in my livingroom, a 27"
Toshiba, was put out by the curb on garbage day. I picked it up, replaced a
$5 regulator and a handful of caps and it's been working perfectly ever
since.

You say you do not like "those strange new futuristic flat sets". To each
their own, but if you give them a look I think you'll find the picture
quality is better than most CRT's. They also use less electricity and take
up much less space. Probably generate less heat too. Unfortunately,
they're not particularly user-serviceable.

Your statement harkens up memories of 'me old grandpappy and his dislike of
"them newfangled iron horses and moving pictures." I don't mind certain
aspects of technology, but still enjoy the glow from my tube amplifier in a
darkened room.

Dave S.