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ek9hatch
Starting Member


USA
13 Posts
Posted - 25 Aug 2002 :  09:55:10
just got a 68040 to replace the lc unit on my 605. my only question is how do i get the old one out? i can't seem to get the service manual to load from any site, so i figured i'd ask here.

tmtomh
Junior Member


USA
172 Posts
Posted - 25 Aug 2002 :  11:28:59
Firmly but very gently pry it up. Start at one corner. When you feel/see a little give (visual telltale is the shiny glint of the pins along the side edge as the CPU begins to separate from its socket), start prying an adjacent corner. Go all the way round to all four corners and repeat. Eventually it'll come out.

There's a special tool for this, but I don't know anyone who has it. I used a flathead jeweler's screwdriver, but I probably shouldn't recommend it, being that it can scratch the CPU cover or maybe even damage the thing if you're not careful. You could try a small plastic/nylon screwdriver first (like those TV adjustment tools), but in my experience their shafts flex too much, so they don't provide enough leverage.

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ek9hatch
Starting Member


USA
13 Posts
Posted - 25 Aug 2002 :  11:51:10
done, thank you.

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Trash80toG-4
NIGHT STALKER


USA
2899 Posts
Posted - 25 Aug 2002 :  17:50:21
quote:

(the proper extraction tool just looks like a very flat fork that slips under the cpu and between the pins btw, for anyone else peeping in on this thread)


LEM article: http://www.mathdittos2.com/columns/view/v000207.html
piccie link: http://www.mathdittos2.com/images/000205-01-12.gif

IIRC, there was a piccie of the putty knife/pry bar lookin' tool in the installation manual (PDF) for the 040->601 upgrade card. does anybody have a link to it handy?

jt .
Trash Hauler: call sign: eight-ball
C.O. AC-130H SpecOps 68kMLAAF

p.s. now you do know somebody who has the PGA Puller™ version, silly maniac!

Edited by - Trash80toG-4 on 25 Aug 2002 18:03:22Go to Top of Page

~Coxy
Leader, Tactical Ops Unit


Australia
2822 Posts
Posted - 25 Aug 2002 :  22:58:17
When extracting CPUs, I prefer to work on opposite corners rather than "around the world." The reason for this is that if you work on corners around the CPU, you can accidentely lift up one side to high, bending the pins across the other side. If you work on opposite corners, you'll tend to lift it out straight.

~Coxy - Leader, Tactical Operations Unit
Mayor of NuBus City v3.0
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