I think I killed my DUO-RX when RGB modding

[SegaSonic91]

Thanks to a stupid, goddamned dodgy power supply (which never played up prior), I had some trouble installing an RGB amp I bought from mickcris.  I soldered and desoldered the RGB wires far too many times because I was getting no power when I turned the system on, thinking it was something I was causing with a bad wire or a bridge.

The pins ended up with some excess solder on them which I tried to drag off with the aid of flux.  All it did was make a mess of the pins and now I have pins that are half broken or missing the solder on the end of the leg (pad?).  I now have seriously messed up colour and missing information.  The "SUPER CD-ROM SYSTEM" logo for instance, is missing all words except for "SUPER" and half the "M" from SYSTEM.  I was hoping this could be salvaged somehow by running wires from the chip to vias on the board.  I have no clue where these vias would be though    I decided to solder the "RGB" lines from the C6260 chip in the DUO I am recapping and it was perfect first time, grrrr.  If only I could go back a fortnight!

[SegaSonic91]

Aaaaaaand now I get a green screen and nothing else be it HuCard or CD.  Goddamn it!  The side of the chip with pins 41-60 have been badly damaged.  Would it be possible to link the legs of the chip to points on the board?  I'd just like to know if it is possible to fix it, or if it is a lost cause.  I was hoping that one of the experts could chime in with some advice.

[leonk]

 

Turbo Duo RX are not cheap. Unless you have the proper professional equipment to solder with such fine pitch, leave it to an expert modder. It will cost you less than the price of now replacing that duo.

From personal experience, fixing botched solder jobs on SOIC ICs is more effort than installing the RGB mod. A lot of the via's (if they exist. Sometimes they're under other ICs) requires you to remove the solder mask first. That is assuming you didn't kill the graphic processor at this point.

You need help from one of the pros now. Sorry.

[Keith Courage]

you should contact theSteve here in the forums. He is the man at replacing and/or reworking chips.

[thesteve]

take a picture

[SegaSonic91]

Thanks guys.  I am almost too embarrassed and ashamed to take a photo   I will get a photo up later today.  I let someone touch the system whom said "I might be able to fix it", big mistake.

The original issue was simply that I soldered and desoldered quite a few times because I was not getting power.  That turned out to be the ac adaptor and NOTHING to do with the soldering!  Because of this, there ended up being an excess of solder on the pins that was bridging several legs.  Dragging the solder both across the length of the chip as well as down the legs, only made it worse.  I then bought and used some desoldering braid which removed the solder, but by this time, half of the solder on several legs was missing and I was getting screwed up colour.

The person that said they "might be able to fix it", seems to have added more solder, tried to remove it with braid and the braid stuck to the chip.  It lifted several legs and made the chip look a thousand times worse.  Grrrrr!  It comes down to my stupidity for this happening in the first place so I do not blame them.  Meanwhile, I added the "RGB" lines to the DUO I am recapping and it was perfect first time.  I do not know why I did not try the DUO first.  If I'd screwed up on that, I would not be AS annoyed as I am now!  The RX in question was a secondary RX I bought early last year for the purpose of modding.  I never touch "original" systems when modding, I always buy a second or third.  My "original" RX is in its box, safe and sound.  This RX cost me a "whopping" ¥6200, naked but with the shitty RX pad.  The prices have blown out so much in the past 4 or 5 months, if I tried to replace it, it would be quadruple that!  Even naked Rs are going for stupid prices on yahoo now!  I still have the second IFU set I bought (¥3000!) along with the DUO I'm recapping and a recently purchased SG and SCD2 for my RGB needs.  I am just waiting on ac adaptors for the DUO and IFU to arrive.  I would have done the simple IFU mod first if I could find my old adaptor from the IFU system I bought back in 1996.  I am worrying about making that damn hole for the DIN8 socket....

[NightWolve]

It happens, I f--ked around too much with my SNES and the 5VDC regulator broke down, sending the full input voltage from the power supply (10 - 12 Volts) into the motherboard which damaged one of the SRAM chips. Certain games have graphical glitches now... :/

To repair it, I have to learn how to desolder/resolder whole chips at once and thanks to BlueBMW/Byron, I have several SRAM chips from dead boards he donated to me, though I have no means to test which ones are good. Definitely gonna take them from the Sony sound modules which turn out are using the same SRAM model as it's highly unlikely damage ever occurred there.

In your situation, you should've taken it to the best of the best, Le Steve... That's where all the other modders send units when it's beyond their capabilities. You want a trained electrical engineer from the get-go (who also loves PCE in this case), not hobbyist hacks (and I mean that in a polite sense) that play electrical engineer on the side.

[thesteve]

well the full circuit is documented in the TG16 repair manual, so wiring isnt an issue to trace

[mickcris]

In your situation, you should've taken it to the best of the best, Le Steve... That's where all the other modders send units when it's beyond their capabilities. You want a trained electrical engineer from the get-go (who also loves PCE in this case), not hobbyist hacks (and I mean that in a polite sense) that play electrical engineer on the side.

The Steve isn't your typical engineer though. Most, I work with at least, are not going to moonlight as repair technicians.  Some of us (I assume others besides myself) have at least accosiate degrees in electronics and work as technicians during the day. The Steve is really good at what he does though and I have much respect for him.

The OP is in Australia so that is part is of the issue. Shipping his board somewhere is not going to be cheap.

[PunkicCyborg]

Everyone makes mistakes when they are learning to do this kind of stuff, don't feel ashamed. I sent a Duo-R to thesteve a couple years ago that I was attempting to region mod and I screwed up big time but all is good now. I have learned a lot since then, got better tools and can sometimes even fix stuff that my friends mess up on and I'm glad I never gave up working on stuff because of my mistake several years ago.

[NightWolve]

The Steve isn't your typical engineer though. Most, I work with at least, are not going to moonlight as repair technicians.  Some of us (I assume others besides myself) have at least accosiate degrees in electronics and work as technicians during the day. The Steve is really good at what he does though and I have much respect for him.

The OP is in Australia so that is part is of the issue. Shipping his board somewhere is not going to be cheap.

If your point is there aren't much trained EEs offering repair services, that's fine. The ideal is stated because here it exists, a trained EE who offers PCE repair services. That's what you want in principle from the get-go and it's available which is why I state it - you ship it to somebody else, you risk another whole round of reshipping to him which is where fan modders/repairers ship to when they can't fix it. Most of the modders I know here aren't professionally trained specifically in the EE field so that limits them to cap replacement jobs, parts replacement (like the CD laser) and video mods, etc.

Anyway, that he's down in Aussieland is the issue. He chose someone in his country I take it.

[mickcris]

The Steve isn't your typical engineer though. Most, I work with at least, are not going to moonlight as repair technicians.  Some of us (I assume others besides myself) have at least accosiate degrees in electronics and work as technicians during the day. The Steve is really good at what he does though and I have much respect for him.

The OP is in Australia so that is part is of the issue. Shipping his board somewhere is not going to be cheap.

If your point is there aren't much trained EEs offering repair services, that's fine. The ideal is stated because here it exists, a trained EE who offers PCE repair services. That's what you want in principle from the get-go and it's available which is why I state it - you ship it to somebody else, you risk another whole round of reshipping to him which is where fan modders/repairers ship to when they can't fix it. Most of the modders I know here aren't professionally trained specifically in the EE field so that limits them to cap replacement jobs, parts replacement (like the CD laser) and video mods, etc.

Anyway, that he's down in Aussieland is the issue. He chose someone in his country I take it.

I guess i just found it a little offensive that you called eveyone besides thesteve a hack.  I have proffessional training in the EE field (an assosiates degree) that qualifies me as an electronics technician and I assume that some of the other modders on here do also, although i do not know this for a fact.  I dont offer repair services though and never will.  TBH I work in the semiconductor industry and dont really use circuit level troubleshooting on a day to day basis so i have lost a lot of that knowlegde.

I do agree that sending something complicated to thesteve is your best bet though.

My point about the engineer thing was that normally how it works is that engineers design things and technicians repair then.

[thesteve]

i do know of a few engineers here actually, but ive been fixing stuff since before most of these things even existed

[thesteve]

and i have done work on on in Australia and shipping was not only expensive, it was really bad (they kept smashing the box when it came home)

[SegaSonic91]

Thank you for all the comments.

and i have done work on on in Australia and shipping was not only expensive, it was really bad (they kept smashing the box when it came home)

That sucks   I was thinking of sending it, too.  AusPost is usually good with packages and I've never had a problem other than a huge box of LDs I bought from Japan 15 years ago.  Now packages from Amazon are a different story.  I've had many damaged games from Amazon US.  Same with things sent via USPS.

I was thinking that I could send just the PCB, well padded in a box.  If I did manage to send it to you, how much would the repair of the HuC6260 cost?  Even if shipping is not cheap, it has to be cheaper than buying a new system at today's prices.  I would assume the chip needs replacing, but I will take a pic later.

I am the one that stuffed it myself and it was just a friend of mine that ruined it more   I have no idea about anyone in this country that could fix old consoles.  Kinda sucks considering this is the country where the NESRGB and PSIO devises are made.  I have now modded one of my IFU systems and have the C6260 wired up on the DUO.  Makes me even more angry with myself for screwing the RX!