Lg 50pg20 won't turn on

[Firebird87]

Hi, I have an lg 50pg20 ua that has a power issue when the power button is pressed it flashes blue 3 times then back to red, I took off the back and checked the ysus and zsus boards as well as the main power board and all
capacitors are fine no bulging or oozing, now when I unplug
the ysus and zsus boards the TV stays on but when one is
plugged back in it goes off again, suspecting a bad power
board. Thanks

[Firebird87]

Re: Lg 50pg20 won't turn on

Anybody?

[Hamie]

Re: Lg 50pg20 won't turn on

Unplug the y and z

Check voltages on the powersupply va, vs.