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Ken Weitzel
 
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Default Problem with vertical sweep on Toshiba CF2665K TV Set



Stephan Greppi wrote:

Hi,
I replaced all electrolytic capacitors Cxxx I could find. I don't have a
schematic, but I guess C3xx are capacitors in the vertical deflection
circuitry.
I also changed IC301, R287 and a couple diodes.
The result is still the same. It started by the top of the picture starting
to elongate, and then the picture progresively diminushing in size over a
few weeks. It is now about half the size of a normal picture, in the middle
of the screen, with retrace lines visible when no RF signal is present.
What else should I try before I trash the TV?
Suggestions anyone?
Thaks in advance.
Stephan


Hi...

Don't trash it for that; specially not since you've
already invested in it.

Betcha a donut that there's one cap left you haven't
yet found. Not necessarily near the ones you did find.
Probably larger, higher voltage. Keep looking.

I like chocolate covered

Take care.

Ken