LG 60PV450 Power Issue

[Hamie]

Re: LG 60PV450 Power Issue

Assuming the buttons and Remote receiver are working, replacing the main board (as you correctly stated the 'one with the HDMI inputs' will 'fix' the tv. It will turn on and should display and image...


However the blue bar will not go away.

The only thing you can try is to reseat and clean the corresponding tab bond that lines up with the blue bar.....

To do this you'll need to remove the long heat sink that runs down the bottom of the tv here:



Once removed you'll notice lots of tabs that connect to the panel, clean and reseat the one that's at fault.

Please note: DO NOT run the tv with the heat sink removed or you will blow the other ICs. These ribbons run HOT and need the heatsink in place.

This will probably only have a 2% chance of working... But nothing to lose in tying.

[jwarnold22]

Re: LG 60PV450 Power Issue

You the man...thanks for the quick reply.

And when I'm testing the power button...I assume I'll just look for a wire running to the button, place the voltmeter on that wire, and press the softkey power button while the voltmeter is attached and if the voltage changes when pressed the buttons work?

[Hamie]

Re: LG 60PV450 Power Issue

yes monitor the voltage at P704 on the mainboard when you press the buttons.
When pressed the voltages should bounce around.

[jwarnold22]

Re: LG 60PV450 Power Issue

Just messing around with the TV now. See my attached picture. Is this the P704 point you're referring to? Do I just put my voltmeter on that white dot or what?

Sorry for all the questions.