Panasonic SC Board - BAD 30F131 IGBTs

[Librian1969]

Re: Panasonic SC Board - BAD 30F131 IGBTs

Hi, I am having issues with a panasonic tnpa5335 sc board and hoping for some advice. I ordered a repair kit from the UK as well as replacement components from China. I fitted the UK kit, and with no short across SC2 I powered it up. Board failed immediately and after investigation found Q401 (30f131) had a direct short. I replaced Q401 and board failed again. SD and SU boards test ok. Any ideas as to where to next?

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

Mine are all cut off on the corner but no copper. So all my RJP30H2A are fakes....

Maybe but if they work I would not get too stressed. I'm just noting what I am seeing does not mean I'm right though, just a theory.

Compare an original to it and see how they compare

[Moreno83]

Re: Panasonic SC Board - BAD 30F131 IGBTs

Mine are all cut off on the corner but no copper. So all my RJP30H2A are fakes....

[Moreno83]

Re: Panasonic SC Board - BAD 30F131 IGBTs

Thx TW2005 , good to know. I will check my big box of RJP30H2A , see if the corners are cut.

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

The ones I've been getting of a Chinese ebayer have been fine and ive been keeping the originals and they look legit under magnification. The same was not the case for the Toshiba bits.

these are the RJP30H2 I've got and working well. Note the exposed copper on the cut corners. I find the original 30F131 also has this but the fakes are tinned and smooth.

I've compared these to the original ones I've pulled and they match up well including the ground feint ridge on either edge

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I will put up a pic tomorrow. The ones I installed failed. I checked the ones I had left in diode mode, every combination of legs, and they all read O.L. (open).
Maybe I should avoid the "Deals", in country and abroad, and pay the crazy high prices for a few and see how they work.
I have more "bits" that I have ordered as well that were shit. I will post pics of them as well.

The ones I've been getting of a Chinese ebayer have been fine and ive been keeping the originals and they look legit under magnification. The same was not the case for the Toshiba bits.

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I will put up a pic tomorrow. The ones I installed failed. I checked the ones I had left in diode mode, every combination of legs, and they all read O.L. (open).
Maybe I should avoid the "Deals", in country and abroad, and pay the crazy high prices for a few and see how they work.
I have more "bits" that I have ordered as well that were shit. I will post pics of them as well.

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I ordered some RJP30H2 from ebay and guess what......they are fake too.

Did they fail? Any pictures particularly the cut corners of the metal tab

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I ordered some RJP30H2 from ebay and guess what......they are fake too.

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I know they work for 30f131 ,I use them, and love them. I was just wondering if they will substitute for other bits.
Also , what can be used in place of th DG301, 302, etc.......

Like I said, try them or RJP30H2. I just look at the ratings and give them a go.

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I know they work for 30f131 ,I use them, and love them. I was just wondering if they will substitute for other bits.
Also , what can be used in place of th DG301, 302, etc.......

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

What else can FGD4536TM be subbed for?
Also, what will work in place of DG301,DG302.....

Why not try them and see or even try a RJP30H2.





By the way. I tried yet another chinese source on Ebay and same deal the 30F131 blew taking out the RJP30H2. Contacted seller who said they'd refund if I destroyed them with images. Also said strange no one else had issue but I say strange I use real parts and my repair is good.

Looking at these ones I thought they may be ok but the outside surface is scratched up to disguise them. Another thing I have noticed is with the metal tab on the cut corners the originals have an exposed portion of copper where all these bad ones are tinned.

The RJP30H2 I got seem original and had no issues there and the cut corners have exposed copper like the originals.

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

What else can FGD4536TM be subbed for?
Also, what will work in place of DG301,DG302.....

[Moreno83]

Re: Panasonic SC Board - BAD 30F131 IGBTs

I ordered also the FGD4536TM from China and got them at home. Was afraid to use them. Will try them on my next repair this teusday. Got 20 for $7

Look visually ok!

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

The igbt's dont have the tm suffex after them. Here is the place on ebay. monitor-09(14490)
99.4% Positive Feedback
Member since 2009
Location: HongKong

the TM is not stamped on it, if they're working that's a good start

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

The igbt's dont have the tm suffex after them. Here is the place on ebay. monitor-09(14490)
99.4% Positive Feedback
Member since 2009
Location: HongKong

[tw2005]

Re: Panasonic SC Board - BAD 30F131 IGBTs

My 30 pack of FGD4536TM for $15 finally showed up (19 day wait). They fixed both SC boards for my tc-p50s30's. They work great, run cooler, and are easy to solder on. Pretty good results for my first surface mount repair!

Source of parts was? Cheap price.

[tvtimmy]

Re: Panasonic SC Board - BAD 30F131 IGBTs

My 30 pack of FGD4536TM for $15 finally showed up (19 day wait). They fixed both SC boards for my tc-p50s30's. They work great, run cooler, and are easy to solder on. Pretty good results for my first surface mount repair!

[Moreno83]

Re: Panasonic SC Board - BAD 30F131 IGBTs

Good job! Could have been a soldering issue that blew the board? Saw some sc boards lately that came from a uk seller from eBay. Don't know the name but the soldering looks awful to be honest.

If you sell a reworked board , the board must look like "new" and not with IGBT's that are half soldered on the board or to much tin on the outside.

[MICROTECHSERVICE]

Re: Panasonic SC Board - BAD 30F131 IGBTs

fairchild mosfets do work lads must be something on the sn board but it did the trick slight underated mosfet i will wait till panasonic 30f131 get exausted then i will use these thanks a lot everyone