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Shutdown at Power Causes: Cause #1 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) 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. 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. 3. SELF-DIAGNOSIS INDICATES SHORT PROTECT. CHECK FOR A SHORTED IC4B01 PART # 270P261020 (VERTICAL OUTPUT) LOADING 24-VOLT SUPPLY LINE. LOCATED ON THE MAIN PCB. Good Luck, big IRISH.
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faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.
The tv 100% have convergence problems,it dead.If any colors lines don't matches or stay in the - + convergence grid.The tv convergence board have dead 2 STK convergence ICS and some or all of it resistors too.The tv conververgence board must have these parts changes to solved the tv convergence picture problems.The shop,will cost u like $300-350 for parts and labors.
Hello!
If you haven't replaced the lamp before, I recommend you do it, since it's already 4 years old. If you already replaced it, there is a possibility you might be having a ballast issue. The ballast is the board in charge of sending all the power to the lamp so it can light up.
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you have a short in power supply the light should stay on check all power supply parts
diodes,power transisters
you need to test all parts, i could fix this in
30 mins
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I get 1-2 blinks and the TV still shuts down. WD-52531. Would it be the power supply?
Thanks
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