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Very wierd Toshiba video problem

I obtained this Toshiba tv/dvd/vcr unit a few months ago. It had been dropped and no longer worked. Model MW26G71. The main pcb was damaged, the high voltage transformer was completely broken away from the circuit board. I repaired the board to somewhat functional status but had a distorted picture. The picture looks like the degaussing circuit is energized all the time. I can e-mail a picture of it for examination. So I figured that the board had fyther problems.. Replaced main board and still had the wierd picture, replaced the power supply, no help. Replaced the video chip on the VCR board, no help. The next part is 200.00. Would like some opinions on this problem, hate to trash a good tv.

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Re: Very wierd Toshiba video problem

Hello techman2429m, It looks like you may have a color convergence problem. when you dropped the TV the convergence/purity rings on the neck of the tube may have shifted or by changing parts you may have thrown off the convergence. I would suggest using a pattern generator and adjusting convergence also adjusting the purity settings. This I believe will clear up your problems.

Posted on Sep 18, 2007

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