Question about Akai PT4298HD Rear Projection Television

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42'' projection tv timer led light blinks

There is no picture or sound when my set is plugged. The only thing that happens is the timer led light blinks 4 or 5 times then shuts off.

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I hope that this will help you. My wife and I had the same problem, but we had a warranty from Circuit City. The repair person must have know what the problem was. He put a new circuit board in the TV in less than five minutes. It took him longer to open the TV than to put in the new part. No cost to us, but if we had to pay if would have been in excess of $65.00

Posted on Sep 03, 2007

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Mine does the same freaking thing, and Akai Has zero customer support. The manual is utterly useless. I would be happy with 50 fewer features and a reliable TV. Why throw all that stuff in if it means more things can go wrong? I will never buy Akai. I am going to take it to a TV repair shop and see how ridiculous the cost is to fix it.

Posted on Sep 02, 2007

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6ya6ya
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Posted on Jan 02, 2017

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1 Answer

Cable hooked up right...turned on this morning sound no pic


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If you have a green blinking LED that runs continuosly, its the widespread problem of failures of capacitors on several circuit boards in the TV. Currently Mits is having authorized service centers remove the chassis and send it them for rebuilding. Its an expensive and time consuming repair.

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1 Answer

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This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems. To activate this turn the unit on let it shutdown then press the input/device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times. 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source.

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1 Answer

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If you have sound but no picture it means that your power supply and tuner are working correctly. The number of times the timer LED blinks is the code for the problem with the picture. The computer will stop the picture and blink the timer LED if the vertical circuit stops working, if the picture tube is too weak or if the horizontal sweep has stopped. The set should be serviced by a qualified tech familiar with Sony sets.

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You may have bad capacitors in the DM board.

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