My 50 inch projector television won't come on once you turn it off. The first time it happen we were watching television then the picture went out and there was only sound. then when the television was turn off it would not come back on until the next day. the problem we found out from the repair specialist is the power board. we need to find a power board for our vs-70707.
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Re: Once power is off T.V. won't come back on
First CHECK IC700 PIN 20 (AC-OFF) FOR 0 VOLTS DC. IF HIGH, CHECK FOR LEAKY D980 PART # 264P045040 ON THE MAIN PCB. 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. MAY BE INTERMITTENT, SELF-DIAGNOSIS ERROR 23 OR 24. CHECK SOLDER CONNECTIONS AT CONNECTOR "DY" ON THE YOKES. 2. SHUTDOWN AT POWER WITH SELF-DIAGNOSIS ERROR 23 OR 24. CHECK C411 2200 UFD 35 V AND C412 10 UFD 50 V, BOTH LOCATED ON THE MAIN PCB
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i just had the same problem i took the top of the projector off and cleaned the color wheel and sensor seemed to have fixed the problem that is for now. seems to happen to me once a year on the dot but last time it was warranty. good luck hope it helps.
What color does it flash? Also it may be blinking a code so we need you to count the # of blinks it should blink a certain # of times, then pause, and blink that same # of times again. Let me know and I will be able to help you furthur.
#1 When I turn on the TV the power button comes on then blinks 6 times then goes off for a few seconds then repeats the cycle. I have sound over my surround system during this time but no picture.
#2 My sound would crackle and pop every once and a while until now it does nothing. I have to watch it with the surround sound on.
I have seen this symptom when the vertical output IC has cracked or burned out, and the set is shutting down to protect the CRT's. When you press the power button the computer clicks the main relay and the set powers up, but a fault is immediately detected and the computer shuts the relay off, giving that double click sound. The circuit should be repaired by someone with experience.