Black screen but has sound- if I shine a flashlight on I see images
You have lost your backlights and this is very common for the LN series LG TVs...they use 6 volt lamps and if one opens the entire string goes out, kind of like the old Christmas lights used to be. First thing to check though if your able is the voltage on both sets of cables, hook your meter to one side of the power board that supplies the lamps and see if you have voltage for a second or 2 when you power the set up and then it drops off to almost nothing, if you see this unhook the plug that goes to the lamps in the panel and see if the voltage holds at a couple hundred volts, if it does its lamps in the panel and I think you will find this is the case, if it happens the voltage drops down or isn't any to start with its the power board...Good luck
SOURCE: W4201C no picture only sound
Try to use dvd player to play video to determine where the problems goes wrong either from the video signal of the cable provider or from the TV itself.
Please let me know any update.
SOURCE: LG Flat Screen TV has no picture, but sound
The times my TV at home has done this it is because I'm tuned to an HD source and my TV doesn't have HD. Or vice-versa, I tune to a regular channel and I have the TV set to HD.
If you have NO picture, like the channel number or volume bar don't appear, then this isn't the problem at all.
I would say check the Video (Yellow) cable in the back, or try setting up and playing a DVD and see what happens. maybe cycle through video modes, Digital etc.
If none of this helps, comment on the post and we can exchange more information.
Good luck!
SOURCE: 47inch toshiba lcd tv (HL167) black picture, but
Best to replace both at the same time . Yes they are easy if you can find the parts.
SOURCE: Picture goes black after a minute or so...
your problem come from the back light source
call ballast power supply or side neon are burn
you probly need a tech to fix it.
hope that will help
SOURCE: turn on tv, no picture no sound, shined light into screen,nothing
Check your connections and scart leads, take them out and put them in again. It may be a loose lead or maybe a faulty lead, swop them over to see.
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