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Author Topic: Amiga 2000 battery PCB and CPU socket damage  (Read 3887 times)

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Offline EugeneNine

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Re: Amiga 2000 battery PCB and CPU socket damage
« Reply #14 from previous page: December 08, 2016, 07:57:03 PM »
Quote from: Nitz76;817462
It's just not the flavor of the month... There is a small quatity available for "small or single orders". You can order a batch but there is a one month lead time.

Thats typical for distributes.  Its a JIT world, you take a mean of how many are ordered over a given time and other just that much so you keep minimal stock because stock takes space and costs overhead.  Not many people order those big sockets anymore so they don't keep a lot on hand.
 

Offline QuikSanz

Re: Amiga 2000 battery PCB and CPU socket damage
« Reply #15 on: December 08, 2016, 08:36:12 PM »
Quote from: EugeneNine;817455
I find the big sockets like these its easier to carefully pry the plastic frame off then desolder each pin one at a time.


I find it easiest to flush cut the legs with the board then turn it over and such them up along with the solder using solder sucker shown above.
 

Offline James1095

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Re: Amiga 2000 battery PCB and CPU socket damage
« Reply #16 on: December 08, 2016, 09:01:31 PM »
I recently replaced the corroded CPU sockets in two A2000's. I use a Hakko 808 vacuum desoldering gun. I bought it a few years ago and I absolutely love it. I wish I had bought one a decade earlier, it wasn't particularly cheap but it was money very well spent. It makes removing stuff like this a breeze, I pulled the 68 pin socket in about 3 minutes all in one go without any damage to the PCB. I can pull a 40 pin DIP from a double sided board on a whim with little risk of damage, it absolutely transforms the diagnostic and repair process. Those solder sucker pens are junk, I never had any luck with those things.
 

Offline mindprober

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Re: Amiga 2000 battery PCB and CPU socket damage
« Reply #17 on: December 08, 2016, 10:07:51 PM »
Will your video adapter be in any way different/better than this one:

http://gglabs.us/node/983

when completed?  I've got my eyes constantly peeled for a better solution than what I have now. It is good but still has a couple of problems.

P.S. I am not currently using the above device.
 

Offline kenny smith

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Re: Amiga 2000 battery PCB and CPU socket damage
« Reply #18 on: December 28, 2016, 05:11:47 PM »
Quote from: Nitz76;817413
I repaired my 1989 A2000 back in 2006 for a bad battery leakage. I thought I cleaned the PCB properly with a special battery spill cleaning formula but some remained on the CPU socket.

I had a black/green/yellow... screen at boot-up since a week or two.  After a general cleaning with a scilicone based contact cleaner, I made it work intermittantly. I then isolated the issue to the CPU.

Seeing the socket leads being very corroded, I decided to replace it. Some of these 64 pin sockets are still available from Digikey at a reasonnable price.

Unsoldering this thing was quite a challenge since the lead used back then was not RoHS at all! :eek:

I managed to remove it bit by bit by cutting it in 4 parts. I felt like a dentist removing a wisdom tooth!

Well, after cleansing and all, tada!!



Soldering back the new machined socket was easy as 1-2-3.
It worked right-a-way!

Ok now back to my RGB to YPbPr circuit...

http://www.retronicdesign.com/en/new-product-in-developpement-amiga-rgb-to-ypbpr-components-video-converter/

Cheers!
I want you to use vinger to clean the hole area as bast you can and then clean it with a lot of water and see if it did it's job. You keep doing this intell you don't see not a thing in where the pins are. And then you can report back to everyone of the job you did. Just do remember to keep no battery in the area no more and put it out by the hard drive light with wires to the area of the battery area. I am in the sacc.org in sacramento California amiga computer club.