Question about LG 37LG50 37 in. LCD HDTV

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My LG 37LG50 TV wont turn on ?

My LG 37LG50 TV wont turn on when I push the power button the red standby light blinks 5 times then the backlight turns on and the standby light turns blue but no picture or sound. I replaced the power board nothing changed put original back in.

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  • LG Master
  • 933 Answers

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

Posted on May 05, 2013

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Posted on Jan 02, 2017

dave1645
  • 834 Answers

SOURCE: lg 26lg30 light blinks red blue wont turn on.

you have a bad cap in the power supply
these are can shaped device thet if bad will vent anf put up on the top the valoue is wrtten on the side trplace them and you should be good to go

Posted on Nov 06, 2009

  • 5 Answers

SOURCE: LG 47LC7DF Green Light Blinks 16 Times - No Picture or Sound

The lights indicate what the issue is. Kind of like your check engine light in your car tells you something is wrong with the engine.

Posted on Aug 31, 2009

  • 8457 Answers

SOURCE: Tv turns on green light blinks three times then TV turns off

Ur power supply board is dead.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Posted on Apr 07, 2010

  • 1 Answer

SOURCE: No Sound, No Picture on LG 42LC7D

I do not have a solution but I have the same situation with my tv

Posted on May 25, 2010

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SOURCE: how to reset lg lcd tv

how do u reset ur password if u forgot what u put in

Posted on Aug 26, 2011

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HAd been working fine turned it off came back later turned it on e light comes on blinks 14 times. unplugged it hoping for a reset. no.


Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
http://electro-medical.blogspot.com/
http://homenol.blogspot.com/
http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

Dec 31, 2015 | Televison & Video

1 Answer

Have a LG 55ls5700 tv that doesn't turn on but the red standby comes on and when i press the power button it starts to blink


Does the screen quickly blink on and then off? Does the standby light slowly blink twice and then go out?If these are the symptoms then it is probably a bad led backlight strip.This was the fault with my lg 47ln540v led lcd tv.I have written this up in a previous post more comprehensively.Hope this helps..

Mar 19, 2015 | LG 55LS5700 - 55 LED LCD Smart HDTV,...

1 Answer

Pn43d490 clicks blinks red light twice and will not turn on


do you have a dim screen? if you put a torch to the screen at an angle can you see the picture?if so this means the backlight is out, it could be the inverter board or the bulbs themselves though this is unlikely.do you get the 24Vgoing to the backlight from the psu?

Dec 09, 2013 | Samsung PN43D490 3D Plasma TV

1 Answer

TV won't turn on. Red standby light blinks


Samsung told me this was a common problem and I would have to have it serviced by an authorized repair facility.
My problem ended up being the internal power supply, but they also told me the main boards burn up.

Nov 06, 2013 | Samsung BN94-05038F Main Board for...

2 Answers

Sony Triniton TV KV 32FS120 will not turn on


In standby mode (red led on/after the led stops from blinking), press "Display", "5", Volume (-)", "Power on" on the remote control in sequence, self diagnostic screen will be display, let me know the what is on the screen to diagnose where the fault came from.

Nov 25, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

What is the code for LG 37LE4500 TO WORK WITH SKY REMOTE CONTROL


I also have an LG TV. I used this 4 digit code: 0742.

TO PROGRAM THE remote USING THE 4 DIGIT CODE:

1. Turn your TV on.

2. Press tv on your Sky remote control.

3. Hold down select and the red button together for about two seconds, until the red light on the Sky remote control blinks twice.

4. Press tv on your Sky remote control again.

5. Key in the four digit code for your brand of TV. The light on the Sky remote control blinks twice. If the light blinks once only, recheck the code for your brand of TV and start again at Step 1.

6. Press the standby button on your Sky remote control. If your TV switches off, press select. The light on the Sky remote control blinks twice (code stored). If your TV does not switch off, press tv, then press the standby button. Repeat this (press tv, then standby) until your TV turns off, then press select (stores code).

Mar 12, 2011 | LG Televison & Video

1 Answer

STANDBY LIGH BLINKING 9 times...


I have a Sony SRS BBE Trinitron (WEGA). The last few days when I tried to turn it on using the remote the Red Light would go on but the TV did not turn on. I would have to press the power button again to turn it on.. I tought the remote battery was just low.

Today when I tried to turn it on nothing is happening and the Red Light is blinking 9 times ??? I tried to unplug it and try it again, still does the same thing ???

We need help...
Lori Nall

Jun 19, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Red standby light light blinking


there is in-line fuse that blowes,caused by the fan vents being restricted (smoking can be a big facter) the vents should vacumed a couple times a month. you will need to have it seviced (parts and labor cost me 270$

Jan 11, 2009 | Sony KDF-E55A20 55 in. LCD Television

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