Panasonic 3 Blinking red light issue

[Mikeyboy2007]

hi guys i have a Panasonic TX-49DS500B LED TV that as soon as you plug it in it starts blinking 3 rapid flashes of red follow by a short pause then repeats. i cant find any blink codes for this model am i right to believe it is something to do with the standby voltage ?

anyone else had one like this and managed to sort the issue ?

[comptek]

Re: Panasonic 3 Blinking red light issue

I have a TX-L55WT50B doing the same thing I read that it's under voltage or over current, also could be t-con missing 3.3v, or mainboard on the 3.3v sub not sure if it's the same as yours

[R_J]

Re: Panasonic 3 Blinking red light issue

A 3 blink error code for the TX-L55WT50B is: IROM SOS, A Board, A service manual is available

[comptek]

Re: Panasonic 3 Blinking red light issue

Fixed the power supply now tv is up and running

[R_J]

Re: Panasonic 3 Blinking red light issue

Fixed the power supply now tv is up and running

Care to tell the forum what you replaced on the power supply to fix the problem?

[comptek]

Re: Panasonic 3 Blinking red light issue

Power IC IC571 (original was destroyed)
Fuse. F102 2A (Original blown)
Zener ZD571 (short)
Zener ZD572 (short)
Zener ZD552 (short)

On soak test for another 24 hours

[R_J]

Re: Panasonic 3 Blinking red light issue

OK thanks, This was the repair from this thread https://www.badcaps.net/forum/showthread.php?t=94115, It can get confusing when there are multiple threads on the same repair.