Question about Sanyo DS31520 31" TV

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Funny half screen problem

I do not know the origin of the problem, but my television has been working great until recently. Now when I turn my television on I can only see the upper half of the screen and the shapes are distorted (people appear to be like midgets). The bottom half is black. The wierd part is that the upper half gradually gets bigger and bigger pushing down the black part and over maybe about 45 minutes I am able to watch the TV full screen or maybe with a half-inch left on the bottom. What is happening and is there a way (ie setting to change) to fix this? I have the exact same problem on my Sony KV-35XBR48 but I notice when I tap the casing, the screen goes FULL size immediately?? Any ideas?

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  • Sanyo Master
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Maybe you got dried capacitors near the vertical IC or the IC himself are damaged you need to be atech for make the rapair because is dangerousli make it

Posted on Jun 02, 2009

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Funny half screen problem


Nope, Sorry to tell you, there is most likly a coupling capacitor or the vertical sweep IC itself could be defective. Although if you have had some sort of solid state Printed circuit board training, this should not be to hard to find, with a can of freeze spray. Unfortanatly this set has no user replacable parts inside of it, as everything is soldered into place and there is no easy fix. Although depending on how old the set is, is going, Im sure, to determine if you want to invest any cash into this thing. Without any training it would be a crapshoot Im afraid! So stay safe and seek the assistance of a pro. Good Luck Please do not forget to rate this!

Oct 16, 2006 | Sanyo DS31520 31" TV

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