Question about Televison & Video
So far, I've changed the power control board, main board and the ir board. At this point I'm at a loss.
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Posted on Jan 02, 2017
SOURCE: Hitachi LCD Television
it appears that your power supply module is malfunctioning this seems to be a common problem. you need to replace it have a local tech replace it for you
Posted on Sep 01, 2008
You need to do some more diagnosing of the problem. If you get sound and change channels take a bright flashlight and place it again the screen. Look for an image around the edge of the flashlight.
If you see an image that means the LCD controller board (TCON) is probably good.
The problem is probably one of three causes;
1) Inverter board is bad
2) CCFT (cold cathode fluorescent light) are bad.
3) Power to the inverter board is bad. You can also check the connectors.
Posted on Mar 30, 2009
You need to open it up and checking the voltages in the power supply sections, you should have 5v (for logic circuits), 12v for sound, 24v for backlight inverter circuits. Look for bad caps with bulging tops in power supply also.
Posted on Jan 12, 2010
usually capacitors are the problem on the TDA03211c power supply. 450v (volts) @ 10uf. change both. beside inverter filters.
Posted on Mar 31, 2010
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