Tv Clicks Off Right Away

our mitsubishi big screen tv model vs-45606, will click off right after it clicks on. you push the power button either on the remote or the tv and same problem The green light on the front of the tv goes on and off also. you can hear it trying to "warm up?" when it clucjs on.

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Answer #1: Posted by geekyankit1991 on January 15th, 2014 8:29 AM

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geekyankit1991

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Shutdown at Power
here is what you can do to help pin point the problem.
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)

2-1. SELF- DIAGNOSIS INDICATE X-RAY. CHECK FOR A SHORTED IC5A03 PART # 270P704010 AND AN OPEN R5A73 82K ¼ WATT OFF PIN 2 OF IC5A02 ON THE MAIN PCB. Problem with the flyback transformer or associated components

2-2. SELF DIAGNOSIS ERROR INDICATES SHORT PROTECT. CHECK FOR OPEN FUSES F9A04 AND F9A05 PART # 283P043090 ON THE +24 AND -24 VOLT LINES. IF THE FUSES ARE OPEN THE CONVERGENCE OUTPUT CIRCUIT WOULD BE SUSPECT.

2-3. TOO MANY THINGS TO LIST

2-4. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB. If this is the error, I have seen many bad connections on the yokes.

Then, in this old of a set, bad solder connections around high power components are always a likely candidate, dried out capacitors and finally search for any fluid leaking from the picture tubes on to the circuit boards.