Mulja tv repair portal

Equipment Repairs => LCD TV forum => Topic started by: sinclairtv on July 05, 2019,16:06:58

Title: LG 42la620v dead with flashing led...solved
Post by: sinclairtv on July 05, 2019,16:06:58

I had the above set with standby LED flashing. I changed both boards to no avail. With no ideas left I stripped the screen to remove strips.1 LED had a burn mark (6v) so I changed it but then rebuilt set. That was the fault. First time Ive had a single LED shutting down the set.

Title: Re: LG 42la620v dead with flashing led...solved
Post by: tv tony on July 07, 2019,05:36:00

I LED out, yes odd, been in the trade a long time and encountered a multitude of LED\LCD faults but that one would have thrown me. I have had repairs in with a number of lamps failed, both o\c and s\c. But your symptoms were unique.

Title: Re: LG 42la620v dead with flashing led...solved
Post by: downunder on July 09, 2019,03:05:01

I've dismantled many a panel on suspicion of faulty LEDs, usually 2 or more LEDs out. Hence, they call me the panel beater at work.Guess it depends on the sensitivity of the LED current sensing circuit.