Is This Repairable ?

[mmartell]

Or is the panel toast ?

Pioneer Plasma

[tom66]

Re: Is This Repairable ?

Probably repairable. The fact that the pattern is repeating makes it highly unlikely to be panel, and quite likely to be the main digital board. However such a repair would be a board swap, it's unlikely a component level repair would do it.

[mmartell]

Re: Is This Repairable ?

Ok thanks for your input, tom.

[mmartell]

Re: Is This Repairable ?

I have the set in my possession. This thing is clean and it is HUGE ! It is a PDP-6010FD.

The first pic is the "Starting Please Wait..." message. As you can see it is duplicated in quarter steps above and slightly backward.

The second pic is a snap of the volume osd. Just after start up the volume had the same mirrored images as in pic 1 but when this pic was snapped a minute or so later they weren't being produced. Capacitor issue in conjuction with scan fequency error ?

I know even less about the functioning of a plasma display than I do an lcd which isn't saying much so I'm all ears.

[capkid]

Re: Is This Repairable ?

This could also be a logic control board issue.

[tom66]

Re: Is This Repairable ?

Bloody hell, it's a Kuro! How do you... I've wanted... Damn you!

I agree most likely main or logic.

[mmartell]

Re: Is This Repairable ?

Haha this one I paid for. $200 plus tax and gas about $250 all in. I figured there must be that much in parts if I can't fix it so no loss.

But of course I'm hoping to fix it

I can get a Control board for $40 so I guess I'll start there.

[mmartell]

Re: Is This Repairable ?

Would I be correct in thinking that the main board signal is routed through the digital board so that jumpering the main board to get the test patterns wouldn't tell me anything ? Is there a way to inject a signal into the digital board ?

I have a scope - can anyone suggest a way to probe in such a way as to tell where the fault lies ?

[tibimakai]

Re: Is This Repairable ?

Tom, how about this one? It's worth getting it? I don't have the model number yet.
Usually I don't repair plasmas, but it seems a nice TV.
http://losangeles.craigslist.org/lgb...227722190.html

[capkid]

Re: Is This Repairable ?

Would I be correct in thinking that the main board signal is routed through the digital board so that jumpering the main board to get the test patterns wouldn't tell me anything ? Is there a way to inject a signal into the digital board ?

I have a scope - can anyone suggest a way to probe in such a way as to tell where the fault lies ?

Yes, the main board routes a signal to the logic board. Samsungs and LGs have control board tests you can run, so I wonder if the Pioneer has a similar test (I haven't looked for the manual or searched online): https://www.badcaps.net/forum/showthread.php?p=369183. Most times when the pattern onscreen is like what you're seeing, where the spacing between the vertical lines is even, the control board is at fault.

[mmartell]

Re: Is This Repairable ?

Tom, how about this one? It's worth getting it? I don't have the model number yet.
Usually I don't repair plasmas, but it seems a nice TV.
http://losangeles.craigslist.org/lgb...227722190.html

Bro, get on that set! Sheesh and I thought I got a good deal...

[mmartell]

Re: Is This Repairable ?

Yes, the main board routes a signal to the logic board. Samsungs and LGs have control board tests you can run, so I wonder if the Pioneer has a similar test (I haven't looked for the manual or searched online): https://www.badcaps.net/forum/showthread.php?p=369183. Most times when the pattern onscreen is like what you're seeing, where the spacing between the vertical lines is even, the control board is at fault.

I'm pretty sure the jumper for this set is on the main board but maybe that just activates the patterns on the control board. I've downloaded the SM and I'll try to decipher some of it.

[mmartell]

Re: Is This Repairable ?

Ya scratch that there is no jumper and no way I can see to activate a self test via the digital board.

[mmartell]

Re: Is This Repairable ?

Well it looks like I didn't perform proper due diligence.

While waiting for my replacement Digital board to arrive I decided to get out the hair dryer and put a little heat on that board. Wouldn't you know it - all symptoms disappear with heat directed at the main processor.

I was thinking of cancelling the purchase as it hasn't shipped yet but I'm not confident enough in my BGA reflow capabilities that I can make a lasting repair. I have no interest in taking this 130lb beast off the wall and removing damn near 100 screws to redo the job once it's mounted. But I guess I will ATTEMPT a repair and keep it as a back up just in case.

[newtothis]

Re: Is This Repairable ?

What BGA format are you looking at?

[mmartell]

Re: Is This Repairable ?

You mean size of the grid ? Didn't count.

[newtothis]

Re: Is This Repairable ?

You mean size of the grid ? Didn't count.

Yeah,

Hot Air station?
Good flux?
IPA?

[mmartell]

Re: Is This Repairable ?

I have the first two but am on the low end of the learning curve.

What is IPA ?

[newtothis]

Re: Is This Repairable ?

Isopropyl Alcohol, Rubbing alcohol. Its for cleaning off flux.... If you have a good flux you don't need to remove it but otherwise it will burn through the PCB over time... If using IPA make sure its 99% pure or above... anything lower will leave residue.

Generally re-flowing is a temp fix though.. With todays look on the environment Lead-Free solder is used which is what causes the solder to go brittle and break, Leaded solder has more flexibility and is much superior in such applications. As a rule for a 'real' fix it needs to be re-balled. For this really you need an IR rework station.

I can and have removed, re-balled and re-flowed with just hot air... if you want to try it I can give you some pointers to give you the best chance of repair.

My kit consists of :

Hot Air Rework Station
Amtech flux
99.99% IPA
Kapton Tape
ESD safe precision tweezers (5 different tips)

Have successfully re-flowed many BGA packages with this

[mmartell]

Re: Is This Repairable ?

Yes I have 99% ipa. I have Amtech and Kester 951 as well but both are knock offs. I don't have any nozzles, just the three round ones that came with the unit. No preheater and no kapton tape.

I'm not too concerned about putting this board on my learning curve as I have one on the way and replacements can be had from shopjimmy for about $35.

Pointers are welcome