Question about Sanyo DP42746 42 in. Plasma Television

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No power

No power

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21g1 this is my model of my tv, my problems no power

Posted on Apr 08, 2009

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There might be the problem with the power cord or if connected to surge protector try and and connect directly to wall

Posted on Mar 24, 2009

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Samsung PN51D450 no power


You see the thin board to the left of the Ysustain? Did you try disconnecting that from the Ysustain, then power up your TV with the power supply connected to the Ysustain board?
http://www.shopjimmy.com/samsung-bn96-16519a-y-buffer.htm
Also, did you notice if the blinking light on this board blinked once a second?
http://www.shopjimmy.com/samsung-bn96-20513a-main-logic-ctrl-board.htm
That board right there keeps the power supply board turned on, and monitors the Ysustain board when it's connected to the power supply.
When you disconnect the power supply from the Ysustain, the power voltages usually do power up, then slowly drift down. But when you connect the power supply to the Ysustain, the power supply should stay powered up as long as that green light blinks once a second. Once that light goes out, the power supply board is turned off.
And since you installed the Ysustain, I would have tested it with the thin board disconnected from the Ysustain first.

Nov 24, 2014 | Samsung Televison & Video

Tip

LCD TV TROUBLE SHOOTING


1.Do not power on .
1 .1 Please check AC cable if connect to AC plug. Is true the connector don't connect to AC plug. Please connect it.
2.2 Please check AC cable if connect to AC power. Is true the AC cable don't connect to AC power. Please connect it.
3.3 Please check power board of fuse if broken. If the F1 fuse is broken, Please pull out the AC cable from AC power. Please check AC L power and AC N ground by multimeter, The read number is infinite, the fuse is broke. Then look up power board if not burn out place. Is true it. Please change power board or be changed power board.
2. The power on switch of green extinguish.
2.1 The power of led(indicator light) is red light, To touch power on key when indicator light wink. Is true that the power DC output have somewhere short circuit. Check connector J39,J31 .If not connector direction is wrong. Or the mainboard somewhere of power short circuit.

FOR MORE CHECK THE LINK BELLOW
Electronics Equipment Repair Center

on Feb 14, 2015 | iLO Televison & Video

1 Answer

I have a Insignia NS-L32Q-10A that will not power on. Now power on light or standby. I have replaced the power supply already. All caps look good and fuses check OK. What next???


ok, when you plug in the set, does the power light come on? Assuming you ordered a power supply in good working order, you may very well have a faulty main board. The power supply produces standby power that the main board uses to power the standby/power on light. Your main board also uses the standby power to provide the "ON" signal to turn on the rest of the power supply.

Feb 02, 2013 | Insignia NS-L32Q-10A 32 in. HD-Ready LCD...

2 Answers

Hitachi LCD TV looks like no power but power cord checks good


Hello
Eventhough the fuses and power cord os good, and there is no power light on the panel board, means the power board do not get power to it. Check an other power outlet point first. If it does not help you, soethnig wring with the power regulator baord. Normally, these board are irreparable, and replacement should be done as card basis. OK.

Feb 07, 2012 | Televison & Video

1 Answer

My SD3990 DVD plsyer will not power on


ensure that there is power in the socket and check that the power cable is firmly fixed to the socket. if power does not come on then switch off, remove the power cable from the socket then open the dvd player cover. plug in the power cable again and now measure if you are able to get power into the power supply unit. if power is reaching the psu then measure the output power which feeds 12v to the motherboard, if not present then concentrate on diadnosing the power supply unit as the power ic could be dead and requires replacement.

Sep 17, 2011 | Televison & Video

2 Answers

How do I tell if my power board is out


You can check that the power supply is getting power from the power cord. then check the fuse on your power cord. Last you can check the output power of your power supply. You can get parts from www.interliquidparts.com

Jun 08, 2011 | Memorex MLT3221 32 in. LCD TV

2 Answers

Power light comes on for about 30 secs, something clicks and both power and ocp lights start blinking contineously. the screen does not light up


I have this model of the sharp tv.Happen to me very often the Power and OPC LED light indicators blink continueosly.Not the power supply board,it the Tuner board that take in the comming broscast signal that have the problems.You still can used this tv.Push the power button sometime the tv it will work right away.Not,each time POWER and OPC lights continueosly blinks.Just push the power button again each time the POWER and the OPC continueosly blinks.Just have push power button again about 4 times each time Power and OPC blinks recycles,it will finally show the backlight and picture come on.My guest,if u do this by pushing power button to recycles about 10-12 times each time the POWER and OPC blinks it time to change the Tuner signal board.

Jun 03, 2010 | Sharp LC-C4655U 46 in. LCD TV

1 Answer

I have no power from my power supply. Is the power supply bad or is there another cause for this. Knowing that there is outlet power present, I have nothing indicating power at output of supply.


Nothing coming out from the power supply would signal a bad power supply. The power supply is bad. Replace it. It may have blown a fuse inside.

May 14, 2009 | Optoma RD50 Television

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