Question about Televison & Video
Can't tune it
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Posted on Jan 02, 2017
SOURCE: Turns itself off
Sharp LC-13AV4U - turn it on and in ten seconds it turns off.
Happens every time.
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.
Posted on Dec 13, 2008
In most cases, you can reset the TV by leaving it unplugged for 30mins.
If this doesn't work, I believe the circuit board that supplies power to the screen maybe bad. They call this board a backlight inverter board. It would most likely cost more to repair than replace the TV .
Posted on May 27, 2009
Samsung tellys top level menus should have a choice of four or five sub-menus.
The one you want is that represented by a picture of a satelite dish / antenna. Dont worry if you dont get your TV via satelite, this is just the symbol they use to denote the tuning options.
Down arrow to the satelite dish sub-option and select enter. This should then give you several more options, one of which is Tuning, Select this and then select Auto Tune, then press enter and the set will completely retune itself.
If youre asking this as a result of today's Freeview retune, then you may well end up with some "dummy" channels - i.e. they either have nothing at all displayed or a message telling you the channel has moved - or some of the channels have an incorrect name. I'm hoping that now the retune has happened, in the near future these dummys or errors will be fixed.
Posted on Sep 30, 2009
If the channel icon is greyed out and you cannot tune the channels press the TV/DTV button on the remote control unit the icon is not greyed out and tuning is possible.
Posted on Oct 01, 2009
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