Re: TV LG 65UM7470PSA Display Doesn't Turn On



around 390V when Standby, around 380V when On...

Re: TV LG 65UM7470PSA Display Doesn't Turn On



I checked serial numbers, model, rev etc. It's the same board 100%

Also, the noise only appears when the TV is on...

Re: TV LG 65UM7470PSA Display Doesn't Turn On



On P201?...

Hello, people.

My TV has gone bad about a month ago. At first it wasn't turning on from the standby state, so I replaced the mainboard. (The mainboard has a humming to it, but I believe it is normal Coil Whinning)

Now... With the new mainboard it does turn on, however, my display isn't working properly, It doesn't turn on when I turn the TV on.

I measured the Power-On voltage on the P201 connector, it has ok voltage when in standby (0V, according to specification), however when I turn the TV on it should have 3V+. The other pins that has voltage on the P201...

Re: New Members - please post your introductions here

Hello!

Im, 25, engineering student and, like most of you guys, I like to repair and do things myself!

I hope to learn a lot here.