SOURCE: My Tv wont turn on LG 327000
If you are still getting audio coming through then there is possibly a problem with the backlights. This could either be a problem with the power supply or the inverter board. You would need a multi-meter to check if you have 24 volts being supplied to the inverter stage. If you have a backlight tester then this would isolate if the problem is faulty backlights. If you can see some resemblence of light on the screen then your problem will be with the main board not processing the signal, try different inputs eg. an RGB source or scart source to see if there is any image showing.
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
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 plasma just turned off for no reason,
Try unplug,replug for reset that all could do,same prob.must change tha Main backlight Vivdeo board.
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