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My 47lg50 lg flat screen will not turn on the power light just flashes red

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Posted on Jan 02, 2017

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SOURCE: My LG Flat Screen won't turn on.

power board issue or capacitors on the power board have blown this happens with electronics, service center will be required to replace the board or if you know some one who solders electronics they could do it also. to keep this from happening again buy a ups backup power supply which will condition the power to the tv and other components and save you allot of time and trouble later.

Posted on May 27, 2008

  • 1 Answer

SOURCE: Samsung flat screen wont turn on red light just flashes..

wont turn on red light just flashes?
On my samsung flat screen tv when you are watching the televison there is no red light on the power button but when you turn the television off the red light stays on all the time? what can I do to turn this light off?

Posted on Oct 29, 2008

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SOURCE: LG 26LG30 screen suddently went blank. Light flashing blue/red

There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc.
Please post back what you find.

Posted on Nov 14, 2009

  • 1099 Answers

SOURCE: LG TV won't turn on. Power light flashes red/green.


Power supply board just die.It can be dead at anytime.Tries websites, to buy a refurbish power supply board for the replacement.

Posted on May 31, 2010

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SOURCE: I have a two year old LG 47lg50 LCD HDTV and

The solution for the problem is to replace the control PCB. The PCB is the printed circuit board that controls the volume, channel and menu buttons.

These parts can be found and bought from Sears parts direct.

A break down of the cabinet parts can be found here.

Posted on Dec 21, 2010

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LG 47LG50 has no picture.

T'Con board fault. Check and replace it. Contact any service technician. If you wish to get some details; visit the site linked here. Pull up older posts.

Mar 02, 2017 | LG 47LG50 47LG50 47-inch 1080p LCD HDTV...

1 Answer

Red flashing light on 47lg50

After use Tv will not turn on

Tv will not turn on after previously being use. We will use the tv for a period of time turn it off and come back to it later in the day or night and the tv will not power on. The flashing red light on the bottom right corner will flash but it will not kick over to the blue light as it does when the tv is acting normal. Now we will wait an hour or two and the tv will turn on and work but it just starts the cycle all over again. The tv is not hot or warm or anything and does not make a noise. What can I do to fix this?
Category: I own this product
Interested in: Troubleshooting
West Palm Beach, FL, USA
ON 47LG50 0out of 0found this question helpful. 1 ANSWER
We regret the trouble you have experienced with this television. There does seem to be a problem with the Power Supply, or one of the related components of this TV. The unit will likely require service. To make service arrangements, you may either contact our Customer Interactive Center at 800-243-0000, or you can check our Repair Provider Lookup on our website, at

From this link.
Looking for Answers about LG Electronics 47LG50

Sep 16, 2014 | LG 47LG50 47 in. LCD HDTV

1 Answer

47LG50 won't turn on, no standby light at all. DEAD! tried different power sources, but nothing. was on, made a "bzzzddd" noise then turned off. Serious or just a fuse?

you can remove the fuse and check them with a multimeter. put a lead on each end If the meter shows a low number (normally less than 1), then the fuse should be okay. if not than you need a new power supply board. be sure at all times to have tv un pluged while working on them and always be very cautious as the do still hold power. hope this helps

Dec 02, 2013 | LG 47LG50 47 in. LCD HDTV

1 Answer

The power lights flashes three times and the TV doesn't work

Three times flash to LG TVs denotes a fault with its main board. Contact any service technician. If you're sound in electronics, check this link. Blinking codes to many brand TVs are given in detail. Pull up older posts there, either by its left side bar, or see it in Timslide option.

Jun 23, 2013 | LG 47LG50 47 in. LCD HDTV

1 Answer


please follow the steps below:

RED + SELECT (flashes twice)

try the volume if this works then press SELECT to save the code. If not then press TV again then the volume. repeat this step until the volume works then press the SELECT button to save the code.


Little Dish Fitter

Jun 08, 2009 | LG 47LG50 47 in. LCD HDTV

1 Answer

Stand by light stays on only black screen

mainboard damaged.

replace the mainboard and that should solve your problem.

May 09, 2009 | LG 47LG50 47 in. LCD HDTV

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