Toshiba 36A50 36" TV
Problem for Toshiba 36A50 36" TV

Only thin white line across my toshiba tv




By mmason002 on Sep 28, 2009

" "
Has sound. No picture. Gradually started losing the screen...it got smaller from the top and bottom until it eventually was a thin horizontal line in the middle of the screen. Then no picture at all, only sound.

Best Solution

posted on Sep 28, 2009
Very Helpful)

johnnydiode

Rank: Guru  Toshiba Televisions & Videos  Expert
Rating: 94%, 196 votes
This is an easy repair if you've ever soldered and would not be too costly for a repair shop to do it for you. The problem is a bad Vertical Output IC (usually mounted on an aluminum heat sink with the part on it labeled LA78?? ) and 1 or 2 bad capacitors. Some times you can even fix the problem by re-soldering the contacts of the IC- To find the IC follow the 4 wires that come from the Yoke (which is a contained coil of wires slipped over the neck of the picture tube(s)) back to the board. 2 of the wires go to the horizontal o/p and 2 to the Vertical o/p the thinner gauge wires are for the vertical.
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