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Old 18 March 2014, 14:38   #1
Turran
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How not to solder. Part #2.

The first series was a bit shorter: http://eab.abime.net/showthread.php?t=71768

I bought 3 defective A1200 motherboards on ebay. Needed a Alice chip but figured I could fix up two of them at least.

I have now decided otherwise. So, without further ado:

I'll just leave these loose thingies in the package unprotected.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/1.JPG

Yes, removing caps is easy. Just twist and bend and melt.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/2.JPG
http://www.grandis.nu/images/A1200_MB_Bad_repairs/4.JPG

Lisa is an arse. I hate her.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/3.JPG
http://www.grandis.nu/images/A1200_MB_Bad_repairs/5.JPG

Kickstart sockets needs a bit of violence to come off.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/6.JPG

The more solder you use, the better. That speaks for itself.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/7.JPG

Used too little solder on one cap? Compensate on another.
http://www.grandis.nu/images/A1200_MB_Bad_repairs/8.JPG

New traces can be made almost invisible to the naked eye!
http://www.grandis.nu/images/A1200_MB_Bad_repairs/9.JPG
http://www.grandis.nu/images/A1200_M...repairs/9b.JPG

Soldering iron too thick? Dont worry. Plastics melt to give room.
http://www.grandis.nu/images/A1200_M...repairs/10.JPG

Last time I tried, I could only remove one kickstart socket. I'll try again.
http://www.grandis.nu/images/A1200_M...repairs/11.JPG

No, its NOT OK as the RF modulator says. Check top right as well.
http://www.grandis.nu/images/A1200_M...repairs/12.JPG

Plastic is not good for the environment. I'll melt it all and break some tracks while I'm at it. Easily fixed.
http://www.grandis.nu/images/A1200_M...repairs/13.JPG
http://www.grandis.nu/images/A1200_M...epairs/13b.JPG

No wires? Just use an old cap leg and glue it in place.
http://www.grandis.nu/images/A1200_M...repairs/14.JPG

Bad picture, bad soldering.
http://www.grandis.nu/images/A1200_M...repairs/15.JPG

If a little glue does not work, use more until it does.
http://www.grandis.nu/images/A1200_M...repairs/16.JPG

Tried re-tinning the track and you fail? Just repair it with a leg. I would also like to point out the top right cap.
http://www.grandis.nu/images/A1200_M...repairs/17.JPG


Last edited by Turran; 18 March 2014 at 14:45.
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Old 18 March 2014, 14:51   #2
jbenam
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And now we know why the prices for an A1200 have skyrocketed in the last few years

I presume not a single one is working after all of this, right?

Friendly hint, next time buy a $20 hot air gun, even if most of them are way too hot for rework, you will certainly kill less stuff trying to desolder a PLCC that way (well, if it heats up chips to 800C that won't be good either!)

EDIT: I should stop looking at the pics. They make me sad
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Old 18 March 2014, 15:09   #3
Bastich
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Ouch that looks nasty
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Old 18 March 2014, 15:09   #4
Turran
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Quote:
Originally Posted by jbenam View Post
I presume not a single one is working after all of this, right?
EDIT: I should stop looking at the pics. They make me sad
Hehe yeah. Makes me sad as well. I have not tested a single on of them. They all miss components and otherwise here and there so no need. I think they were used as donor cards after the "repairs" failed.

BUT, I found more on them on closer inspection!

What do you mean "center the chip before tacking it in"
http://www.grandis.nu/images/A1200_M...repairs/18.JPG
http://www.grandis.nu/images/A1200_M...epairs/18b.JPG

BAM! That should stay put.
http://www.grandis.nu/images/A1200_M...repairs/19.JPG

When melting all the plastic with my hot airgun, I lost a part that soldered itself to another place. I'll just leave it there.
http://www.grandis.nu/images/A1200_M...repairs/20.JPG

No, I still will not listen to you about centering. I'll just bend the legs to match instead.
http://www.grandis.nu/images/A1200_M...repairs/21.JPG

Here is an interesting fact. If you melt the plastic once, do you not learn your lesson for next time?
http://www.grandis.nu/images/A1200_M...repairs/22.JPG

Apparently you do not. (not the same motherboard).
http://www.grandis.nu/images/A1200_M...repairs/23.JPG

A valid method is actually to drill into the chip if you break a leg. Or you can just drill here and there. Other legs all look good anyway.
http://www.grandis.nu/images/A1200_M...repairs/24.JPG

Last edited by Turran; 18 March 2014 at 15:19.
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Old 18 March 2014, 15:12   #5
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really strange soldering tips !!!
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Old 18 March 2014, 15:31   #6
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Somebody was doing a surgery and ended up with a dissection. How sad.
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Old 18 March 2014, 17:30   #7
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Thanks, now I don't feel as bad about my soldering skills
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Old 18 March 2014, 17:56   #8
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awesome pictures mate.

i wouldn't be surprised if most of the parts don't work anyway,well...not now.
and whats all that crap on some of the ic's? solder paste or something else?
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Old 18 March 2014, 18:23   #9
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Feels like hot glue to the touch.. no clue why you'd smear that over a few chips )
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Old 18 March 2014, 18:25   #10
roy bates
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Feels like hot glue to the touch.. no clue why you'd smear that over a few chips )

nor me,seems too random and in the wrong place for flux paste...very strange.

anyway,wheres part one? got a link? this is interesting reading.


EDIT: never mind its in the first post#doh#

Last edited by roy bates; 18 March 2014 at 18:47.
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Old 18 March 2014, 19:06   #11
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A valid method is actually to drill into the chip if you break a leg.
Oh god - I have actually done that. But it worked, and the machine in question (an ancient PC) gave a few years' service afterwards!
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Old 20 March 2014, 21:24   #12
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Erm.... I am truly fecking shocked!

Really!

There should be a custodial sentance for such cruel acts... I am speachless here!!! Never have I seen such destruction. Hell even my younger self from years ago would not do such damage

I will now have nightmares after seeing that lot lol.
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Old 20 March 2014, 21:27   #13
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I don't understand. I can watch nicely a Gore movie... but I can't watch those photos you post. They are too hard
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Old 24 June 2014, 21:12   #14
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Wow that was brutal.
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Old 24 June 2014, 21:50   #15
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My ten year old could do better (with a blindfold on ) Farout I would consider that a jailible offence. Some people
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Old 24 June 2014, 21:55   #16
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who did you buy from? Mr Bean?
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Old 25 June 2014, 14:27   #17
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WOW....that's all hideous!

Please tell me that wasn't Budgie just hot glued in place (ie not soldered)?????
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Old 25 June 2014, 14:58   #18
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Thanks, now I don't feel as bad about my soldering skills
Same here, I thought I was the worse in living memory but apparently I'm not really that sh*t

It just shows you how everything is relative....
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Old 21 September 2014, 15:54   #19
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who did you buy from? Mr Bean?
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Old 21 September 2014, 17:13   #20
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Resisted the urge to click this thread because 9 out of 10 I'd end up posting "still a lot better solder skills than i possess" but then I saw the photos. I'm just a simple guy who happens to ruin hardware but these boards are ruined by true artists.
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