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Author Topic: Need Amiga Mother Board Repairs in U.S. or I'm Out.  (Read 7319 times)

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Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« on: February 20, 2014, 12:28:46 AM »
Quote from: XDelusion;759205
I've asked this before and never received a response, so I'm going to ask once more.
Aside allowing my self to be raped shipping my Amigas to Canada, is there anyone here in the U.S. that will work on Amiga mother boards?

 I'd REALLY like to have at least once stable machine (out of the four I own), but I only know one guy and it took him 3 years to get my A600 back to me, only to find that the IDE port needed replaced too.

 I really have no interest in waiting another 3 years, and I've got all sorts of money dumped into this hobby and a lot of ideas I'd like to realize on the hardware...

...but alas, no one seems to exist that can work on these things.


What's wrong with it and what model do you have?
 

Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« Reply #1 on: February 20, 2014, 04:24:06 AM »
Quote from: QuikSanz;759251
@amiman99,

Had a look, website is updated. May use him myself for my A2000 & A4000T, I could do the A2000 myself but would take to long. I work for a living. Good find!

Chris


Replacing capacitors is relatively easy and shouldn't take up too much time.  However,  there are some brands you should avoid.  See: List of Bad Cap Manufacturers
 

Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« Reply #2 on: February 20, 2014, 04:26:37 AM »
Quote from: XDelusion;759252

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For those wondering, I have 2 600's and 2 1200's. A PAL and NTSC of each.

I also have a 2000, but the mother board needs some serious work... though I could care less. Never was much of a 2000 fan.


What kind of problems are you having with them?
 

Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« Reply #3 on: February 20, 2014, 03:36:39 PM »
Quote from: XDelusion;759285
Is there a  list of good cap manufacturers sites? :)


Sure: List of Good Capacitor Manufacturers
 

Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« Reply #4 on: February 20, 2014, 05:10:33 PM »
Quote from: XDelusion;759255
I just received an e-mail back from that Charles guy. Quick response I must say! :)

 Anyhow, all four of them have audio issues. Crackling and all that jazz. The PAL 600 needs it's PCMCIA port replaced. The NTSC 600 needs it's IDE port replaced. The PAL 1200 just needs recapped as far as I can tell. And the NTSC 1200 needs it's kickstart sockets replaced...

...a result of me trouble shooting a purchase from Amigakit.


The audio problems you're experiencing could be caused by bad capacitors and/or electromagnetic interference.  Check for any bulging caps and for any brown rust-like material on, under, or near the capacitors.  Not all capacitors that have gone bad will show physical signs, but it doesn't hurt to check since it is a sure sign that they have gone bad. The IDE port is easy to fix and the PCMCIA isn't that hard but takes more time.

Also, bad traces can also cause problems, especially on older motherboards.  If you have a USB microscope and a multimeter, look for any corrosion and check the continuity between traces.  Even if there is a loss of connection between traces due to corrosion it is still possible to fix it.
 

Offline Lionheart

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Re: Need Amiga Mother Board Repairs in U.S. or I'm Out.
« Reply #5 on: February 20, 2014, 05:16:32 PM »
Quote from: XDelusion;759298
Funny, they mentioned the lack of a "good list" in that very forum. :)


I'll admit that link isn't very helpful since some people are selling fakes of good brands. What you want are Japanese capacitors.  This might be of more help: How to Identify Japanese Electrolytic Capacitors