Rebuilding TNPA5330 , TNPA5349 & TNPA53305

[Moreno83]

I've been repairing tv's for almost 3 years now , just for my hobby! Basically i only repair Panasonic plasma tv's from 2011+ and to be honest....i really didn't know what i was doing in the beginning. Didn't know how to measure igbt's and diodes and with a little help from friends/youtube and great members on this forum i learned more and more and developed a passion for the Panasonic plasma tv.

Over these 3 years i repaired a lot of 2011 models and collected a lot of damaged Y-sus boards from 2011+ models. I always thought ... "Ha , just change those 6 fets and we got a working tv " but i was wrong. Over the last year i got more damaged boards then working boards. Not because of my soldering or knowledge but because of FAKE parts.

Fake 30F131 , RJP30H2A , DG302 and RF1501 blew most of the boards. On the pictures you will see boards that i received from people that tried to repair the 7 blink problem. Not only you will see "bad" soldering by those people but also fake parts and the results. Fake parts + not cleaning the board will result in blowing diodes/fets and fire!

At the moment i have 24 Y-sus boards from 42GT30/50VT30 and thats why i started this thread , 24 is a lot!! All with 6 or 7 blinks but all of them took massive hits or were used as scrap boards. I decided to try and bring them back alive. Some are missing the capacitors , others got blown diodes above the white prong connector and others have parts gone/missing that i need to figure out what they are.

Because most of the problems are in the "Energy recovery circuit" i will put my focus on those parts first. Panasonic provided a parts list in the service manual but its not always clear what the exact item is.

I know it will cost me some money but it will be worth it in the end. Why? I recently repaired one that blew 4 or 5 times and is now working so that gave me hope.
I love soldering , got a spare GT30 , VT30 and ST30 and i got the time so i got nothing to loose....maybe a little money but the knowledge is worth more.
I just need to figure out what parts are bad and maybe in the end i can help someone with the same problem.

I have ordered all resistors , photo couplers , diodes , igbt's , capacitors in the energy recovery circuit. All are original parts from a chip company in China. I found them via HKinventory.com , it will cost a little more but they ship with DHL and i received the original parts in 2/3 days.

Next chapter , parts!

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Because of all the fake parts i searched for a reliable source because spending money on eBay , wait 2/3 weeks and receiving fake parts is a real pain in the ass!!!

I bought the following parts and all are original!

IC502 ( BD8693FVM ) + Q531 ( CPH5524-TL-E ) from Ebay ( user e-best-trade ).
FGD4536TM , replacement for 30F131 and RJP30H2A. From eBay ( user Monitor-09 )
FGD4536TM from hkinventory.com for test because i didn't trust monitor-09 at first after receiving fake FGD4536 from Utsource. , these are all original!

RF1501 , HKinventory. Looks a bit bigger but i tested it and tv turned on with this item. ( Look at picture ).
DG302 , HKinventory.
RFN20 , HKinventory.
PS9157 , HKinventory. ( Photocoupler ).
Fairchild ES1G are the replacements for the diodes. ( Thx Flocko ).

Will wait for the other items like resistors , diodes to arrive.

First step is removing the old parts and clean up the first TNPA5330 Y-sus with alcohol...... Will update in the future if anyone is interested. 24 SC boards....thats worth a lot of money if they work.........

[flocko]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

I would not trust HKinventory to supply part that were not fake, they operate as a clearing house for sellers of no longer needed parts, the same as Utsource. They do not check any parts or know 99% of the time were they come from or if they work. And looking at the amount of defects on these board you will need a lot of luck and deep pockets.

[ReeceyBurger123]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Going to be honest bud but the ones you've soldered the main tab on the fets doesn't look flowed properly ?

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Those are not boards that i worked on Reece but you are correct. I just posted the boards that i got with the bad soldering which im planning to work on in the future.

@Flocko , I did not know that but the items that i received are working. I got 350 igbt's and diodes etc for $70 so thats not that bad. I ordered from them before and no problems.

[flocko]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

You also have to ask yourself what do you do with the boards if and when they fixed.I am not doing half the sales I was two years ago, and I supply refurbished boards to the trade. Sorry to say but I think these sets have seen there day. Unless its over 60"smart UHD 4K you can not give them away.I am happy to spend a day or two in the workshop a week just doing refurbish boards, but also glad not to have to repair and sell to customers that want everything for nothing.But I wish you well in your quest, and if you need anymore help just ask

[syaoran123]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

I am extra careful when i buy things on ebay. The fact that they have 99% positive rating doesnt mean shyt. When you message the seller about fake parts, they would often give a refund without returning it. But how many buyers would leave negative feedback after that? And there is the possibility that the seller will raise it with ebay to retract a negative feedback because they already refunded the money.

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

@Flocko , True but at the moment its just laying on the floor doing nothing. With just 1 oor 2 boards i would not bother but i got 24 of them. In the Netherlands people still search for Panasonic plasma tv's , especially the VT/GT models because they dont want LED tv's. I recently sold a 5 year old 55 inch VT30 for 500euro's and a 42 inch for 300. ( Easily ).

So in the UK they might not buy these boards but in the Netherlands people are searching for these. And if i sell them for $100 a piece instead of the Ebay prices i will loose them.

Thanks , i need all the luck and will post my findings here.

[syaoran123]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

@Flocko , True but at the moment its just laying on the floor doing nothing. With just 1 oor 2 boards i would not bother but i got 24 of them. In the Netherlands people still search for Panasonic plasma tv's , especially the VT/GT models because they dont want LED tv's. I recently sold a 5 year old 55 inch VT30 for 500euro's and a 42 inch for 300. ( Easily ).

So in the UK they might not buy these boards but in the Netherlands people are searching for these. And if i sell them for $100 a piece instead of the Ebay prices i will loose them.

Thanks , i need all the luck and will post my findings here.

Well then if that's the case.. ill start selling overseas to the Netherlands.

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Still waiting for some parts to come in ( IC501/Q531 ) but i already got some succes with 2 boards. 1 TNPA5330 and 1 TNPA5349. On the TNPA5330 i had to replace almost every part in the energy recovery circuit. Replaced all buffer ic's ( 8 legged ic ) and transistors and the board fired up.

The TNPA5349 however turned on but gave me a negative image. After comparing almost every component with another board i found out that 1 tiny diode and 1 tiny capacitor was missing next to Q661. ( RJP63G4 ). Took these from a scrap board and the board is now working!

Im now working on my 3rd SC board , tnpa5330 , but im clueless. I repaired the board but RJP63G4 blew with a bang and sparkles/fire. Because this part was removed many many times the pad now got removed. I now got a short on Q661 even with the part removed , all other parts are still ok.

Anyone got a idea how Q661 is still short with all parts in that area removed? Can this be because of a transformer on the board?

I need help with this 1.

[dick_barton]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Is it a multilayer pcb?

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Yes it is. So it can be a part on the other side of the board. All the resistors , diodes measure ok. Glad i now got a working board to compare.

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Im going to remove the parts on this picture and see if the short goes away. Good idea or?

One board will be a donor board anyways so i got spare parts.

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Removed ic921 and got one from the donor board. Short is gone.
Next task is replacing the rest of the missing parts....to becontinued!

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Yeaah , its working!!! This was the hardest board to repair yet as it was heavily damaged. Pads missing on Q661 but bridged it to R661. Replaced all the missing fets , resistors and diodes and turned on the tv! 6 blinks and a short on collector to emitter on q421/422/423???Short went away after a period of time...dont get it. Again a small ic near a transformer was missing , got it from a scrap board and tv turned on! Damn , lucky haha.

Need to clean up the solder and the rest of the board but the board will never look pretty again haha. For now the score is 4 out of 24!!

I have to say , it is alot of ( fun ) work! Definately 2 whole evening of measuring and soldering per board but i love the results so far. I won't make it to 24 as i need some of the boards for parts.

More to come and i will show the end results of all boards. I also made a small schematic with all resistors and their values because when you use fake igbt's the resistors and small diodes in the middle section of the board will blow.

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Next board will be another challenge. Look at the traces on D421 ( DAF30A )...pfff. Hope it is still intact.

Missing parts besides all fets and diodes are:

Resistor r601
Diode d108
Transistor q600
Ic724 /ic684

I probably need another donor board for this one , lets repair this fucker

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Watch out for fake RJP63G4 , boards will explode and damage the following parts on a tnpa5349 AB

Q661 , Q401 , Q402 , Q421 , Q422 , Q451.

Q451 will read short between collector and emitter.

[ReeceyBurger123]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Good job but what happened to the soldering on Q422 and Q423 ?

[Moreno83]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

Hmm , probably reflection of light. They are really tiny fets , most what you see is the actual board before clean up.

Next board blew again , will be scrap board.

[syaoran123]

Re: Rebuilding TNPA5330 , TNPA5349 & TNPA53305

The FGD4536TM that everyone is talking about doesn't seem to work for me. I fitted them to a tnpa5335 board and blew up immediately. I know these are original because I ordered them from RS which is a certified retailer. They came in very small TO-252 packages.

As soon as I replaced them with RJH3047, the TV fired up straight away.

So what is the success rate of the FGD4536TM?