LG PDP60R40000 No Signs Of Life

[Todd1]

Hi, I have an LG that has no signs of life on the outside, no power LED, video, or sound. All output voltages on the power board EAX64276701 tested normal and per spec. The mainboard EAX64280504 has a constant red light at part LD500.

The Tcon EBR73749601 has a flashing green light at D101 with repeated cycles of one long, one short.

I have not sure about which direction to take troubleshooting this issue and any help would be appreciated. Thank you

[tw2005]

Re: LG PDP60R40000 No Signs Of Life

don't know a lot about the LGs but on the logic control board ther are 2 pads marked auto-gen.

I believe you can jumper those together, disconnect the LVDS ribbon from the main board, disconnect the power lead from the main board to the psu. plug it in and turn on at the wall it should auto turn on and then display a sequence of test patterns.

Also the model , probably 60PAxxxx,

[Todd1]

Re: LG PDP60R40000 No Signs Of Life

Ok found it. Just not sure exactly what to jump, the orange circles or the resistors together?

[tw2005]

Re: LG PDP60R40000 No Signs Of Life

Ok found it. Just not sure exactly what to jump, the orange circles or the resistors together?

The orange circles which should be copper pads

[Todd1]

Re: LG PDP60R40000 No Signs Of Life

Cheers, not too familiar with the terminologies haha. No change when I bridge the connection with a screwdriver.

[tw2005]

Re: LG PDP60R40000 No Signs Of Life

Cheers, not too familiar with the terminologies haha. No change when I bridge the connection with a screwdriver.

did you follow all the steps? Can you be sure a screwdriver made contact? If you have a soldering iron I'd solder a wire link but if you're sure you did everything right then that would suggest it's in protection due to a failed driver board or buffers.

Only thing to suggest would be to use a multimeter and go looking for shorted out transistors or shorted buffer boards. The transistors to check woulfd be the heatsinked items with positions labelled Qxxx, Dxxx are diodes.

I'd start with the ysus board

[ReeceyBurger123]

Re: LG PDP60R40000 No Signs Of Life

Images of the back of the set ?