Tv would turn on, then would go off and the little red light would flash on and off. I would unplug the power cord on the back of the tv and plug it back in and it would work. it started to do this more often and finally the other day, it powered on and went off and it wont come back on. the red light just flashes on and off.

Sustain board fault. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/

Red flashing light on tv. Power went out

Tries tv unplug,replug it back like about an hour later for the tv to do it resetting itself back to the factory setting,tv might work again.If not still same problems.The tv 90-95% it is the board that call the tv power supply board is having a problems.That the board where the tv power a/c cord plug into it.U have all tools and know basic electronic and also can do basic soldering works too?Yes,take the tv aparts,check the tv power supply board carefully for dying and soon to be dead capacitors components parts.These capacitors components parts are alway bulges up or puffing up onto it tops.These dying and soon to be dead capacitors components parts are bulges or puffing ups on to it tops must have to be replaced will solved ur tv power unstable and flashing red light.Or try website like Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.

If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.

Thanks for using Fixya.

Try unplug,replug the tv it back an hour later.The tv now,is resetting itself back to it factory setting now,it should.Not than the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Try tv unplug,replug about an hour later.The tv now,resetting to factory setting.The tv now,should work.Not than,the power supply board is dead.That the board,where the power a/c cord plug into it.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Hi,

The Standby/Power light of the TV blinks when there is any internal malfunction in the TV.
The self-diagnostic function of the projection TV will cause the STANDBY light to blink or flash when the television detects an issue. The number of times the STANDBY light flashes corresponds to a specific issue. As per the two examples below, some of the issues may be resolved without the need for service.
If the STANDBY light flashes three times in sequence, the lamp cover is not securely attached. Reattach the lamp cover to resolve this issue.
If the STANDBY light flashes four times in sequence, the TV may be overheating. To resolve this issue, ensure that the back of the TV is well ventilated.

If the flash sequence is not listed above or the light continues to flash, follow the steps below to perform a power reset:
Try the following steps to check if the issue can be resolved.
Turn off the television.
Unplug the television power cord from the electrical outlet.
Let the television remain without power for 60 seconds.
Plug the power cord back into the electrical outlet.

If the television is plugged into a power strip or surge protector, remove it from the power strip or surge protector and plug it directly into the wall outlet. If the issue is resolved, the problem is with the power strip or surge protector and not the television.

If the issue continues to occur, service may be required.

Thanks for using Fixya.

turn tv on picture comes up 2to3 seconds later tv blacks out then stand by red light flashes 4 times in a row repeatedly..can not turn on or off when stand by light starts flashing but before tv blacks out you can turn tv on and off repeatedly and picture and sound work.You have to unplug power cord for 30 seconds after stand by light comes on to get tv to turn on.

I had the same thing - one long red flash followed by four short red flashes. Plugging and unplugging the power cord had no affect until I also unplugged all the cabled connections to the VCR and DVD player as well. Also, per the manufacturer's instructions, I unplugged the power cord from the surge protector and plugged it into the main wall outlet (which I tried first, but did not finally have success until I cycled the power cord unplugging process with all the cabled connections to the auxilliary devices unplugged as well).

Bad Convergence circuit , replace 2 STK392-110 & fuse will take care the problem