My tv will not turn on anymore. Red power indicator is on. I hit the I/O switch and picture will display for 1/2 a second and then go back to blank screen
SOURCE: My 42"LG 50 TV will not turn on
One important step to see if you are having an internal problem is to perform a power drain.
1. Unplug the product's power cable so that the device is not grounded to the house. Do not simply turn off the power-bar if one is in use.
2. Press and hold in the products power button for 1 minute to release the retained electricity from the capacitors and circuit board.
3. Plug the product back into the wall outlet rather than a power-bar to rule it out of contributing to the problem and turn the device back on.
If this does not work but you are still seeing a LED lit up, there is probably a problem between the TV's power supply and the mainboard and service maybe required.
SOURCE: LG 37LF65 LCD TV BLINKS 3 GREEN THEN 1 RED THEN TURNS OFF.
Here's a link to the service manual for a slightly larger LG LCD TV. Perhaps it may be of some help? The troubleshooting section appears to be the same for many models of LG TVs...
http://www.observations.biz/MANUALS/LG_LCDTV/42LF66.pdf
SOURCE: invalid format displays on screen
hello try changing the picture ratio...what i mean is try 16.9 widescreen or 4.3 ledder box the tv is tryn to produce a pic bigger or smaller than what you have keep tryn different picture ratio's
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.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.
SOURCE: Lg 42lc7d turns on to blank screen doesnt respond to any request
I need sreen for LG 4LC7D-UB because the screen is damaged
Note: How to reset video output settings
If you are attempting to change to an HDMI cable from a different video cable or if the video output settings do not match those required for the display in use, the screen may stay black. If the screen stays black for more than 30 seconds, you may need to reset the video output settings of the PS3.
To reset video output settings:
Click below for an interactive video walkthrough on connecting your PS3 to your television or display device (including HDMI).
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