Question about Konka KDL32AT23U 32 in. LCD Television

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Black sreen The sound is always fine and the picture will be fine to but then it will start flashing and we will loose picture, can sometimes fix by jiggling around but would like a long term solution. please help

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Check and replace its CCFL back-light lamps and back-light inverter board.

Posted on Jul 15, 2013

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My camera turns on and shows the menu icons on a black screen. I can take a picture, and the flash works, but nothing is captured. After I take the black picture it works just fine, though.


Please contact your nearest Nikon Dealer the connectors of the Screen at the back are loose / happens sometimes, as far as we had the Problems (owners of Photo chain stores) Nikon always regarded is as a Guarantee Replacement.

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Sometimes tv sreen comes on then goes black, in the right lighting you can see the barely see the picture, other times the screen wont come on. either cse the sound works fine


Sounds like the backlight or backlight inverter is out on your TV.
You will likely want a seasoned professional to repair this for you assuming the TV is out of warranty.

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32'' Insignia LCD is flashin colrs. wh,blk,rd,grn,blu. audio wrks


It could actually be quite a few things, loose wire, loose solder piece, bad crt's/picture tube, bad system board, or others. It's would have to be diagnosed with testing equipment. It will probably cost you another 150-200 for the new part to be put in.

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This should be a quick fix. Try resoldering the vertical IC. This is a small flat IC attached to a heat sink with about 11 pins. It should be marked LA7837 or something similar. That should resolve the problem.

Keep us posted.
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Sep 08, 2008 | Televison & Video

1 Answer

Sony kv35s66: No picture, just sound and red blinking


The most common problem (I have fixed lots) is the Vertical amplifier has developed a loose connection. It probably just needs resoldering. As things expand it makes and looses connection you picture goes in and out. The vertical chip is a large black chip that gets hot, over time it degrades the solder until a connection is damaged. Most newer sets have a protection circuit that senses the lack of height, and shuts down the picture tube to save it. When the picture dropped to a line on older TVs and left that way too long it would burn a line into the face of the picture tube. You then had to have the picture tube replaced along with the vertical amp. it's kinda like a screensaver for your TV.

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1 Answer

Audio ok, but Video goes from color to black.


the tv turns on fine, but after 5 - 30 min or so, "sometimes MORE " the picture all of a sudden go's black. Sound is ok it is 100% loose contact problem. 1 please check for any connector or print for loose. 2 in signal processor ic there might be loose. remember there is no component failure.

Sep 24, 2007 | JVC AV-32D305 32" TV

1 Answer

JVC AV-32730 36" picture problem..


From what you describe, a solder joint has probably cracked loose in a power supply or deflection circuit, which is quite common. Since you do sometimes see a good picture, all of your major components are fine. Repairing cracked solder joints is a very easy procedure and definately worth fixing on a 32 inch TV. The first 2 digits of the model number indicate the size of the TV.

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