Question about Samsung LN Televison & Video
Have tried resetting (pulling plug, depressing power switch, different power source), but still no red light. Screen fluctuates between black and dark gray if plugged in.
Contact your insurance company and make a claim. Lightning damage to electronics like that is hard to repair.
Posted on Aug 07, 2014
SOURCE: blinking power light
This set has a power supply and signal PCB. Since the indicator light is blinking, I would consider the problem to be a missing voltage from the power supply. Unplugging the set for a couple minutes may solve the problem. If not the set may still be under warranty. Contact LG (800) 243-0000 for a servicer in your area. Hope this helps.
Posted on Apr 29, 2007
SOURCE: screen went black/won't power on
This is a common problem
The first step is to check the fuse on the power supply board. Next, disconnect the inverter board to eliminate the possibility of it shorting down the main and or power boards. Be careful as the inverter board supplies high voltage to the cold cathode tubes (backlights) and it bites HARD. If you disconnect the inverter and the power led comes up then replace the inverter board. (The screen will appear blank because you have no backlighting). If the power indicator still fails to light you need to suspect the main board first before the powwer supply board. The main board tells the power supply board to come on. You need to check the trigger from the main board to the relays on the power supply board. Also check the power connector to the main board because you should see +12V and/or +5V on at least some of the pins. If no power on the relay triggers then replace logic board. Then replace Power supply board last. Or buy a new monitor!!
Posted on Oct 26, 2008
I'm very sorry to hear about your unfortunate new's. I had the same problem in my own home maybe a week ago.
Basically if your power flickered on and off at anytime during this storm then there was a power surge that probably fried your TV.
* First check the power where the tv was plugged in. Is it a power strip or a surge protector ? Surge protectors typically have an on/off switch and a separate reset push button.
If it is a power strip then the tv fried because there was nothing to stop it from happening (not even the fuse). If it was plugged into a surge protector then it could be quiet a few years old and not as reliable or the surge was to powerful for the limit on the surge protector.
The only thing you can do personally is send it in for repair if it's under warranty, if it is not then you can have it looked at by an authorized repair technician in your area. Troubleshooting should be fairly low, and you will at least be able to find out your options once they find the defected part.
Thank you for choosing Fixya!
Posted on Jul 15, 2009
check the power inverter on the power strip. also check the caps on the board and if any of those caps have a round top it is bad and needs to be replaced. i hope this helps.
Posted on Jul 28, 2009
open it up / there should be a glass fuse replace it/ull find it were the mains lead goes on the board/also try new lead just incase
Posted on Dec 26, 2009
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