Re: LG 70uh6350 no picture

For posterity; Replacing only the main board resolved the issue.

Re: LG 70uh6350 no picture



Hopefully the service manual posted is what you need. I will need to return to my dads house (his TV) in order to get any more pictures.

The service manual states to check the 12v/24v pins and says to check ST-BY 3.5v but no specifics as to which pins. Is that 3.5v the one illuminating the standby light? If so, I have not verified voltage but the light is on....

Hey, all! I have a LG 70UH6350-UB.BUSMLJR that does not power on. The standby button is lit but pressing power on the television only causes the standby light to flicker once very briefly and remain lit.

I have torn the back off the TV and am trying to diagnose if its a main board or power board issue. The legend shows various 12v and 24v pins however the 12v legs I do get a reading on only show around 7.5v. If I hit the power button, and set max hold, I see the 12v pins go to almost 12v and the 24v pins hit 24v.

My guess is that this is a main board issue and the...

Re: New Members - please post your introductions here

Hello all! This seems like a great place to jump further into learning electronics troubleshooting. I have been doing it for years but always love learning more from others and helping where I can!