Who can fix or replace surface mount chips? (see pic)

[supadave1]

Who can fix or replace surface mount chips? (see pic)

Who can fix or replace my problem.. I really need some help on this one. Thanks..

 

[G-P-E]

Who can fix or replace my problem.. I really need some help on this one. Thanks..

I've fixed stuff like that before and try to avoid it whenever possible.
It takes nerves of steel ... or at least quite a bit of patience.

Check your local yellow pages for 'electronics contract assemblers'. You may be able to find a local outfit that has proper SMT equipment that can easily replace this without damaging anything else.

Ed

 

[supadave1]

Thanks, my next question is where can I find a replacement chip? I've done some looking but the terminalogy on these chips and stuff is somewhat cryptic to me. Can someone with more knowledge than I point me in a direction for a replacement? Thanks.

 

[orion3311]

Channelmanic can prob help you with that. If I were doing it myself I'd get a magnifying glass and some nice sharp dental pics to help straighten that out.

 

[G-P-E]

Channelmanic can prob help you with that. If I were doing it myself I'd get a magnifying glass and some nice sharp dental pics to help straighten that out.

-IF- the part works, this would probably be your best choice.
Part number IDT74FCT162701ATPV is long obsolete. IDT doesn't even acknowledge they made the part. You can still find at one of the specialty distributors such as 4-Star... but at a GREATLY inflated price.

The part you have is called an "18 bit read/write buffer". It has a buffer for writes and a buffer/FIFO (small memory) on the input. Other than an exact part, you won't find a replacement for this obscure part.

Ed

 

[channelmanic]

I got your PM.

It all depends on if the trace under the chip is good or not. If the traces are messed up then it's a difficult repair as those pins are tiny!

I'll have to dig hard to find a source for a replacement chip. Mouser doesn't carry it... neither does Jameco or Newark. IDT doesn't sell it any more and TI doesn't make a cross for it either. The data sheet is available online at http://www.datasheetarchive.com under 74FCT162701T

If someone has a donor board with the chip it'll be much easier. Can you measure that chip's size in millimeters and post the info?

RJ

 

[HudsonArcade]

SSOPs are small, but doable, if you have the right equipment (I do)

Findchips.com lists a couple places that have it in stock, but good luck getting them to sell you only 1

You're prob best off having someone w/ a hot air rework station remove the chip and see if there's damage to the traces underneath to see if it's even worth trying to find another part.

Might be worth just trying to clean up the shorts and bent pins on the chip, to see if the chip itself is actually bad...

 

[supadave1]

SSOPs are small, but doable, if you have the right equipment (I do)

Findchips.com lists a couple places that have it in stock, but good luck getting them to sell you only 1

You're prob best off having someone w/ a hot air rework station remove the chip and see if there's damage to the traces underneath to see if it's even worth trying to find another part.

Might be worth just trying to clean up the shorts and bent pins on the chip, to see if the chip itself is actually bad...

I think this might be the best option. The pins are just pushed down and together. The picture makes it look much worse than it is. Almost like something pushed the pins down and together against the board.. a small object stacked onto it, or a corner of a box or soemthing. IDK, I got the board as a freebie cause it didn't work and this little issue jumped out at me right away as the probably cause.

 

[gregatron]

They do rework like this at my work all day long. Fine pitch parts like this are a pain but as mentioned before, doable. A hot air rework station would be the only way to reflow all the solder on the leads evenly in order to lift it. Which should also be done with the rework stations suction lifting/placing head. Actually, many times just reflowing that specific area will result it the solder "wicking" up eliminating the bridges. I would first try repairing the damage to see if the part works before trying to find a new one.

 

[ToplessZ]

ahh, the sound section of a Killer Instinct. Im sure there are a ton of broke ass KI boards laying around. I sold someone about 10 of them a few months ago just pull the ones you need off of a non working KI.

 

[CMAC]

Find someone local doing console mods on current generation systems and show them the pic. As long as there is a piece of the pin sticking out of the chip it's doable. Just takes a steady hand and some fine equipment as was said earlier.

 

[Riptor]

I will take a look and see if my supplier has these in the warehouse.

 

[sarge77]

I've had pretty decent luck with this stuff for just replacing a chip or two.

http://www.chipquikinc.com/

 

[supadave1]

I found a local shop that does micro work like this. I sent them a pic and today I'm dropping it off for them to look at. They seem pretty confident that they can repair the work. Yes, this is for a KI2 board that was given to me. I purchased a good working KI and this board was just and extra thrown in. It's got a few issues but I think I can get it working. I need to find a new boot rom for it as well if anyone has one or can burn one. KI2 Dedicated board.

 

[arcadecup]

Put me down as another who could change surface mount all the way up to bga for you. I have a very nice smd/bga unit and airbath for proper temp ramping. All recently aquired. Time to fix all those killer instinct boards.

 

[Riptor]

Yep, I have the equipment just not the experience to take on work for other people. Eventually I want to start messing with the surface mount stuff. I might start stocking some smd but probably just basic stuff for now.

 

[supadave1]

I dropped off the board and the place is awesome.. They custom manufacture pcb boards in mass for many companies. They took me on a tour and they defiently have the equipment and know how. They looked at my board under a scope and said that they could repair it easy enough. The said they will remove the chip entirely, repair one of the pads and then re-attach it all. I asked about cleaning up the board some and they got this huge ass machine for cleaning and they said they would check and make sure all the components are safe for the clean machine and if so would run it through.

I'll post the results next week.

 

[Riptor]

Sounds cool, whats the name of the place?

 

[supadave1]

Got the repair back and they did a wonderful job! and only $25.00 bucks to repair a surface mount chip. I'll try to get pics later. However, what they fixed was not the main issue with the board. I believe the real problem is with the boot rom. I was hoping to have a replacement by now so when I posted my response in this thread I would have more details. However, the place I ordered from has taken now 2 weeks to ship my chip. I finally got a tracking number and it looks like monday or tuesday next week. However, here is the information to the chip repair service place.

Spectra Tech

I spoke to a guy named Jason [email protected] who is co-owner and I asked if if was ok if I spread the information to others who may need some chip repair work done. He said yes by all means. I mentioned to him that some folks may need to ship their items in and he said they could arrange that. They have no way of board testing they are just a chip repair / soldering service. I know alot of us here can do the larger solder work but if you need professional help these guys are willing and able.

 

[caincan]

As long as there is a piece of the pin sticking out of the chip it's doable. .

the worst is there... when the pin is so damaged that we barely see it from the chip i have that on an old $$$ msx2+ computer . some talk about piercing in the chip to try get more pin visible and solder it.. but succeed this seems so difficult