on my tv My mother board got bored once and gave birth to a baby tcon board it seems the t con board and mother board had a thing together, while the power board was not looking.
On an lg 42inch im getting 13.5but the panel PNL12volts is not there its giving 9vand starts to decrease. Whe n yu press the standby button it starts to blink continually without turning on .
My first pin is showing 0 volts instead of 3.5 volts And on the second pin voltage is fluctuating between 0 and 6.5 volts. Fluctuations are in sync with the blinking of the red light. Please help
In my case I replaced psu board and the issue was still happening, so I came back to the original psu. So I gave it another shot and bought a second hand motherboard and replaced it. Evrything works fine. So 3 blinks doesn't mean that the psu is faulty, either psu or matherboard can be faulty.
Hi. Out of curiosity had you checked the psu output first to see if it was faulty or just assumed it was and replaced it? Got a similar issue my tv at the moment. Thanks
@@jamesrees4478 I was checking outputs but wasn't entirely sure what voltage should be ... they are labeled but not evrywhere. I checked parts at ebay and just tried as it was 50/50 ... in my case it was main board, not psu (the first shot)
Lenz your explanation is very clear I love it,thanks
Since there's apparently no power coming from the power supply, what do you think is making the red LED flash..?
false video
be careful with your chain, otherwise tv is going to get you :)
AHAHAHA!!!Y🤣our diagnosis is very helpful. And how to fix this power supply? I see probably a damaged C801 capacitor on your power supply
on my tv My mother board got bored once and gave birth to a baby tcon board it seems the t con board and mother board had a thing together, while the power board was not looking.
my lg 42lb670 is stuck on the logo screen after the lighting event...the led in the power section flashes 3 times.. what the reason could be?
On an lg 42inch im getting 13.5but the panel PNL12volts is not there its giving 9vand starts to decrease. Whe n yu press the standby button it starts to blink continually without turning on .
My first pin is showing 0 volts instead of 3.5 volts
And on the second pin voltage is fluctuating between 0 and 6.5 volts.
Fluctuations are in sync with the blinking of the red light. Please help
In my case I replaced psu board and the issue was still happening, so I came back to the original psu. So I gave it another shot and bought a second hand motherboard and replaced it. Evrything works fine. So 3 blinks doesn't mean that the psu is faulty, either psu or matherboard can be faulty.
Hi. Out of curiosity had you checked the psu output first to see if it was faulty or just assumed it was and replaced it? Got a similar issue my tv at the moment. Thanks
@@jamesrees4478 I was checking outputs but wasn't entirely sure what voltage should be ... they are labeled but not evrywhere. I checked parts at ebay and just tried as it was 50/50 ... in my case it was main board, not psu (the first shot)
@@andgoleczka I bought a PSU and in fact I still have the red blinking leds. I will try the MB, as happened to you.
Bro I have lg 49 led tv red light blink 3 time no power on no sound. But power supply output fine What I do help me plz
check the display board that will be the issue
Lenz Walters u meen T-CON board
helpful ;)
How this prblm solve
New board required.
lg garbage tv i through