Panasonic TH-65AX800A PSU Issues?

[RooTV]

Hi all

I have a Panasonic TH-65AX800A that turns on for about 2 seconds and then turns itself off.

I got it like this hoping it was just a bad cap and an easy fix.

I have pulled the power board and cannot see any obvious capacitor damage.

Is there any other likely causes? Anything else I should check for?

The power board is
TNPA5937 2P
with an additional silver sticker saying
A1318VAL
TNPA5937DA
V1434

I have tracked down another power supply which has the markings
TNPA5937 2P

Except it has an additional sticker stating
N1140VAJ
QF V1455
and this is for a Panasonic TH-65AX800C and not the X800A that I have.

Would this board be compatible?

[RooTV]

Re: Panasonic TH-65AX800A PSU Issues?

Bump

[Scotia]

Re: Panasonic TH-65AX800A PSU Issues?

If the power LED blinks 6 times, the main board is faulty.

[diif]

Re: Panasonic TH-65AX800A PSU Issues?

How do you know it's the power board. 2 seconds then off is usually LED failure.

[RooTV]

Re: Panasonic TH-65AX800A PSU Issues?

How do you know it's the power board. 2 seconds then off is usually LED failure.

This is an interesting option.

Does anyone know which LED's I would get to replace these? I mean the part number etcc.

Im trying to get a replacement before I take the screen out, otherwise I will have to take the screen out twice and that just expands the chances I will crack the screen, so I would rather just do it once

[Scotia]

Re: Panasonic TH-65AX800A PSU Issues?

You can check page 53 of the service manual in ttps://manualzz.com/doc/32289386/2014---lcd-tv
You should be able to identify the fault by checking the blinking time of power LED.