Panasonic Plasma TCP42X1 Won't Power On!

[coppercitycomputer]

Greetings, got a Panasonic TCP42X1, was told it wont turn on after being left on for several months by mistake.

Have not done any testing myself yet, can't confirm problem. Any known problems with these?

Thanks for the help will follow up post later today!

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Problem is correct, plug unit in, hit the power button two clicks, waits a few secs then one click to off, then the LED just starts doing a slow steady flash. No signs of life from the screen.

[tech2014]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Do you know how to use a multimeter? Are there any bulged or domed capacitors in the TV power supply?

[Glitcher]

Re: Panasonic Plasma TCP42X1 Won't Power On!

The red led should blink a number of times then pause and repeat. How many times does it blink?

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Ya I have muilt-meter, skills are rather limited. Caps all look fine to me. Voltage from PSU is 193v on the board shown with the muiltmeter and then 173v & 193v on the orther board.

How long of a pause? It will blink pause blink pause. Need me to shoot a vid of it?

EDIT: Voltage will hold for a few secs, then drop out quickly after the relay clicks.

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Anyone have any advice on what to look at and test next?

[tom66]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Sounds like 1 blink, A board. Maybe corrupted boot flash/EEPROM, which would mean a new main board. Video of blink may help.

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Here is a Video Link http://youtu.be/M-Ei-yqBnKA

[tw2005]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Problem is correct, plug unit in, hit the power button two clicks, waits a few secs then one click to off, then the LED just starts doing a slow steady flash. No signs of life from the screen.

Is it a single flash, pause of 3 secs, single flash, etc,etc,etc

Sounds like SOS 1 which is A board, normally

edit:
Sorry Tom, did not see you had already replied.

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

A board or main board, meaning the board with all the inputs on it?

[tw2005]

Re: Panasonic Plasma TCP42X1 Won't Power On!

yes mainboard, A-Board,

[coppercitycomputer]

Re: Panasonic Plasma TCP42X1 Won't Power On!

Chose not to repair this one. Scrapping it.