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Lc-13av4u Shuts down 10 seconds - Sharp Televison & Video

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Some projection tv's will do this if you do not touch another button within 10 seconds. Power your tv on then change the volume or channel. This should let your tv know that it was not an accidental power on. Hope this helps.

Posted on Sep 11, 2008

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Sharp LC-13AV4U - turn it on and in ten seconds it turns off. Happens every time.


Hello
There is some short with the inside circut of your TV. The short usually occurs with the inverter transformer for backligh bulbs of with video processing section. These tw sections should be checked throrughly to find out the actual short. You must have sound knoledge in digital electronics, skill to work with these section, good quality digital multimeter [analogue multimeter or low quality digital multimeters should not be touched with LCD circuits]. Actually this is not a user repairable fault. If you have all facilities mentioned above check these sections for short. OK.

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Turns itself off


Sharp LC-13AV4U - turn it on and in ten seconds it turns off.
Happens every time.
Any Ideas?
-----------------------------------------------
DO THIS AT YOUR OWN RISK!
This is NOT a fix, this is a permanent band-aid.
All you need is a phillips head and tiny diagonal cutters....
Heck, even a nail clipper would do it.
Just disable that faulty protection shut-down circuit!
Remove all the screws from the back cover
and look at the main board with the
unplugged! power cord towards you.
In the upper right corner of the board, you will find
a tiny red-striped zener diode, labeled as D409.
It is to the right of an electrolytic capacitor marked C403.
Snip this diode, at either end, or snip both ends and discard it.
Re-assemble the TV.....and you just got your tv back!.
I only run mine when I am sitting in front of it,
I never leave it running unattended....just in case!
Don't blame me it yours burns up....but mine is just fine.
The Robot Doctor.

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