Question about LG 42LG70 42 in. LCD HDTV

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My lg 37lcd tv will not power up, just the standby light is on..

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Some times bad capacitors in power supply, u can check it (look like bolw in top side) good look

Posted on Apr 27, 2010

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1 Answer

No power on LG TV


Could be power supply failure

Oct 16, 2016 | LG Televison & Video

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I have a LG LED TV 55LS4500UD that no longer works after a storm. It won't turn on and no standby light. I have pics of the circuit boards. I would like to know which board to replace?


Power Issues Troubleshooting
*NOTE* LG & Vizio TVs must be plugged in for 5 minutes before it will turn on*
1. Inspect ALL Ribbons and connectors. Any tears or bad connections between boards must be replaced FIRST
2. If you have any of these boards, it should be the first board to be replaced
A) T-Con Board - Video Problems (No Video with standby light on, audio but no video, grainy, distorted, or color problems in screen)
B) X or Y Buffer Board (Plasma TVs only) - Standby light is on but no power
C) Backlight Inverter / LED Driver - No Video with standby light on
3. Main Video Board
- Standby light is on but no power
- Either video or audio does not work (if no T-Con in TV. If audio but no video it is T-Con)
4. Power Board - No power AND standby light does NOT turn on. If standby light is on try other boards above
5. Panel - No power, distorted picture, lines, slow motion, half screen, faded in / out. Panel problems are usually not worth replacing the panel.

Apr 11, 2016 | LG Televison & Video

1 Answer

My LG 37LG50 TV wont turn on ?


Are you certain the replacement power supply is good? A defective main board or power supply can cause this problem.

May 04, 2013 | LG 37LG50 37 in. LCD HDTV

1 Answer

LG 32LH2000 My TV was turned of last night in the usual way, the power turned off on the remote control, then the power supply switched off and the plug removed. This morning I attached the power...


most LG have a "vacation switch" on the bottom right hand side of the set very near that standby light.

it is placed poorly, where you can accidently click when grabbing the TV to move it or swivel it.

it is a toggle switch, a "master power" switch.

you may have bumped it to the off position. flip the switch, your standby light will come back on.

Apr 16, 2011 | LG 32LH20 32 in. LCD HDTV

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Lg 37lc7d with no picture or sound but green light comes on . popping noise preceeded problem. no obvious blown capacitors


Ur tuner board is dead.Replaced this board to get picture back.Tries Shopjimmy.com,Ebay.com for the board part.

Feb 10, 2010 | LG 37LC7D 37 in. LCD HDTV

1 Answer

INSIGNIA NS-37LCD MANUFECTURED OCT 2006 DEAD NO POWER


found caps in power supply bulging so i replaced all electrolytes in power supply but TV still doesn't work when i hit the power button the power supply just ticks.

Jun 26, 2008 | Televison & Video

2 Answers

TV does not power on. No Stand by light either.


Your power supply is shorted out. Get a good repairman to fix it..."exspensive" repair if you screw it up.

Apr 30, 2008 | Insignia IS-LCDTV32 32 in. Television

1 Answer

LG 42in LCD Television - turning unit off


The amount of standyby power consumtion is minimal. The only way to turn it off completly is to disconnect the power from the TV. This will however increase your start up time when you want to use the TV.

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