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Toshiba 2104RE Vertical Instability

Vertical rolling only while watching broadcast. Played a DVD thru external input and it was stable. Any tips greatly apreciated. Thanks

Reply to
rogersk8ter
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rogersk8ter ha escrito:

check the tuner's 33v and if need be replace any caps on that line.

-b.

Reply to
b

The Tuner is Toshiba TERD1-068A(found nothing in the internet). 33v ? U mean BM pin? I measured as 12v.

Reply to
rogersk8ter

Here is an update. I substitute the Tuner's IF signal from another good tuner but the result is the same--vertical rolling. Guess Im close but still not on it yet. Help appreciated.

Reply to
rogersk8ter

Is there a coupling capacitor in the video path? If there is, it is probably gone down in capacitance, and is rolling off the low frequency response.

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Reply to
Michael A. Terrell

Right Micheal, there is 1 or 2 i guess. need to check again. I only take note of the electrolytic caps. Thanks.

Reply to
rogersk8ter

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