Question about Proscan 32LA30Q Television

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Won't power on

The power light does not light up and you get no picture or sound

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Check and replace its main power regulator board as card basis. To get more details, http://electronicshelponline.blogspot.com/

Posted on Nov 17, 2013

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Posted on Jan 02, 2017

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1 Answer

Vizio e470i-ao won' turn on, power supply board replaced still no picture or sound, led power on indicator light comes on momentarily then goes out?


Power ON signal voltage should come from the main board to power regulator board. It does not come now. Check for the reason. Probably, the main board will have the fault. Contact any service technician. http://electronicshelponline.blogspot.com/

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The blue light merely indicates power is getting to your TV. The internal power supply may have failed.

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Try these troubleshooting steps:
- Try to power on the TV using the button on the TV and not the remote
- Ensure that the power cover is securely connected
- If you are using a power strip connect the TV directly to the wall
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- Can the outlet power any other device?

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tried first to disconnect the supply connector going to the inverter board for back light just to ensure if their is no shorted component here. and then turn the power on again if the light stay then the inverter board was the cause why won't power on. by the way did you make a voltage checking at the power supply board does it have correct output voltages 5v,12-16v and the 24v.

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** TV won't turn on.** No picture or sound. Please Help !


If the red light won't come on it is not getting power.First,try plugging it in to a different outlet,or unplug one of the gadgets you know is working and plug the tv in there.You are simply switching.If you know that there is power coming from the outlet and it still won't come on then you'll have to check the cord;don't go much farther than that without expert help.

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Philip tv no picture no sound


I have the model Philips 37PF7320A/37 won't turn on and MOST articles on the Internet say it's the Capacitors capictors capictors..I checked all of them. My tv just blinked red lights, had the clicking sound at first power on, but then goes black. No sound. No picture. Nothing. Just blinking red lights.

MINE WAS RESISTOR no. 3318 , a 100 OHM RESISTOR ON POWER SUPPLY BOARD.

I BOUGHT REPLACEMENT FOR .99 CENTS SOLDER IT, AND EVERYTHING WORKED!!!

THAT WAS ALL IT TOOK.

JUST A SUGGESTION..
1. CHECK FOR BULGING CAPACITORS (90 PERCENT OF THE PROBLEM)
2. THEN CHECK FOR RESISTORS WITH MULTIMETER ( FALLS INTO THE OTHER 10 PERCENT OF THE PROBLEM.)

TELL ME IF THAT HELPS..normanw1@yahoo.com

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2 Answers

I have power but it will not turn on. unplugged from power cord overnight then plugged into wall worked fine until i shut it off again, now it keeps blinking the delay light


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