Question about Televison & Video
I have sound but no pcture the dialogue on the screen says vidio format not supported how can i rectify this
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Posted on Jan 02, 2017
SOURCE: plasma tv techwood 4210
hi the most common fault on this tv is what you describe .i fixed mine by replacing the capacitor (1uf 630vdc) at location c19 on the power board .. cost for this component less than 90p
Posted on Mar 16, 2008
sounds like inverter board. What it sounds like is happing is your LCD is working ut the backligkt board that allows you to see is kicking off. (as you still have sound) Which could be the (most likely) inverter board, or the power supply board. You can take apart and check for voltage at your power supply. The power supply has a pigtail with large white wires and a connector. Power up with the center back cover off and check your voltage at the white connector on the power supply before and after the screen gos out. If there is no large voltage loss it is your inverter board.
You can used boards on e-bay or
Posted on Oct 16, 2009
SOURCE: when i turn my tv
Turn on set. press a bright flashlight against the screen. Look at the edge and see if you can see an image moving. Then the video is getting to the screen. You just need the backlight to see it.
If this set is under warranty, take it back to let them repair it for free.
If not then you will need to replace the backlight inverter board(s).
I think this set has two inverters. (master/slave)
IF YOU KNOW HOW TO WORK WITH ELECTRONICS REPAIR(replacing boards ) or have a friend with knowledge/skill you can fix it.
You can search for the inverter from several sources.
and other sites
The board(s) will look something like;
Posted on Mar 02, 2011
SOURCE: I have a Techwood 22884
plug it out of the current outlet for about a hour then plug in back then power..if that does not help take it to the tech for repair your microchip which holds the set memory is bad.
Posted on Sep 13, 2011
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