Panasonic - TC-60AS650u - schematic?

[itelite]

looking for a schematic for Panasonic - TC-60AS650u.

Screen slowly pulses on and off. Its not a hard on/off like with a LED failure detection, and the tv itself stays running. Backlight voltage appears to stay constant. so thats strange. Feels like a PWM dimming situation, but why i cant imagine. ALS somewhere going crazy?

Best yet, no connections are marked on the board, and i can find no schematic or service manual to identify pins/wires.


Anyone randomly have this manual?

Power supply number - tnpa5931

::update:: definitely a 120HZ PWM signal ramping duty cycle up and down and repeating pattern.

[diif]

Re: Panasonic - TC-60AS650u - schematic?

Is this the one ?

[itelite]

Re: Panasonic - TC-60AS650u - schematic?

that appears to be it. much appreciated.

if i hold the PWM high with and external supply it stays on. so PWM is being weird for some reason. will update for the benefit of others when i get this resolved.

[itelite]

Re: Panasonic - TC-60AS650u - schematic?

ugg. 8 seperate PWM signals all seem to just terminate into the main BGA asic. gonna just replace the main board.