My 65 inch lg when I turn on it turns on but I get black screen with some bubbles then turns right back off

SOURCE: LG TV

necesito la pantalla de un tv lcd de 42¨ pues se rompio donde puedo encontrar el remplazo

SOURCE: screen goes black but still have sound

MINE TOO AND SANYO TOOK THIS TV OFF ITS SUPPORT WE SHOULD ALL SUE THIS COMPANY [email protected]

SOURCE: WS-65513 65 in. Rear Projection HDTV Television: My 65 inch Mitsubishi tv turns off a couple of sec...

The power supply will need to be replaced.

SOURCE: we have 65 inch Mitsubishi medallion tv. The

Ours started doing this also just recently. DId you ever find out what was wrong?

Bud Martin

• 11361 Answers
• Posted on Nov 11, 2010

SOURCE: I have a 2007 LG 32 inch flat screen TV model

It can be cold solder joint in the power supply or component failure after heating up. You should do this when the screen is black out to help narrow down the problems.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there is some troubleshooting you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Failed TV and Monitors: http://s807.photobucket.com/home/budm/allalbums

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.

Please post back what you find.