Panasonic TC-60PS34 Dead As The Proverbial Doornail...

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Dead as the proverbial doornail..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

These. Any of the four

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Ditto...

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

These. Any of the four

Got it..

One sec...

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

And more of the same..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Ok it appears the PFC circuit is dead. Is there 120v coming from the separate board below it at.connector P52?

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Well, THIS is interesting...

[vinceroger69]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

maybe test all four and see what readings you get

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Putting the probes thusly, I got 0v

I'll check the other caps...

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Looks like it's only the bottom one that is giving me voltage..

[vinceroger69]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

whats the psu part number maybe we can locate a schematic

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Here is the board..

So many numbers..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Putting the probes thusly, I got 0v

I'll check the other caps...

When you check for 120 V you were on AC for that check correct? I mean obviously are getting voltage or you wouldn't have DCV against that 1 cap. I would say half the board is working but you mentioned you have 5 V DC on pin 6 which makes me think that the rest of the board comes live after main board acknowleges signal in causes PS on to go high.

It may be a main board problem I would try playing some heat around the board to see if it is a BGA problem to start

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Not the first time. But I just redid it under AC and it's still 0v...

I was beginning to wonder about the Main Board.. I have seen instances where there was no power around and it was the Main Board that was the culprit.

Lemme check that..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

You have no 120v AC in at P52?

Edit: Scratch that p56 is where you should have your 120v P52 is switched by mainboard PS-on.

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

OK, officially weird....

I did a "reflow" on the Main Board.. It's often more of a hail mary, but it has gotten good results..

It's also great for heating up pizza and last night's chicken..

So, I did a reflow on the board..

hooked it back up to the TV, and hit the switch on the power strip...

SUM BEACH!!! I got relay clicks!!!

So, I shut it down, pulled off the volt meter and hit the power strip switch again.. Was rewarded with a couple relay clicks..

Used the remote to turn on the TV and VIOLA!!! We have power...

Display came up.... Then I heard a click and it died..

Now it's back to what it was.. Dead as a doornail..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

There you go! somethijng on that board likes heat. I would take a heating gun with a pencil tip and go around areas to find out where the problem lies

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Thanx... I'll have to pick it up in the morning..

I'll follow up the results..

Thanx to all for all the help...

[Michale32086]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Aww right.. Final (hopefully) disposition on this..

I bought another Main Video Board.. Unfortunately, it wasn't the exact same model, but the TV did come on, albeit with a wanky screen display.. But it DID turn on, so it confirmed that the Main Video Board was the problem..

I did a hail mary reflow on the original video board and I'll be deep'ed in sheet, it worked!!

I even found a matching stand for it!!

So, all in all, a good outcome..

Thanx to all for all the assist and replies..

[freakaftr8]

Re: Panasonic TC-60PS34 Dead As The Proverbial Doornail...

Nice! Great job!