Re: Faulty Apple IIe

[dalloff@gcfn.org (Dave Althoff Jr)]

Stephen Shaw (stephen@apple2.org.za) wrote:
: On 27 May 2001 09:24:54 -0700, Rich J. wrote:

: > gregw@venus.itns.co.za (Greg Wildman) wrote in message
: > news:<9eq4r7$8p3$1@venus.itns.co.za>...
: >> the RAMs are socketed you can replace them by levering them out and process
: of
: >
: >> elimination. If the RAMs are soldered in DO NOT try and unsolder with a
: solder
: >
: >> sucker!
: >
: > I've replace the RAM in a few II computers.  Any with soldered chips I
: > clip all the chips out with nice cutters, heat the solder side and pull
: > the leads out one by one.  Solder in sockets, and replace the RAM.
: >
: > Rich

: The problem with this way is that you damage good chips with the bad. In a few
: years time there may be no more 4164s available. So I can keep going, besides
: I'
: m stingy :-)

Don't use a solder sucker; I can acree with that.  But you can use
desoldering braid ("solder-wick") to get the holes cleaned out and the
chips out.  That was how I got the RAM out of my IIc when I had to do that.

One word of warning with the //c (does not apply to the ][e, so far as I
know)...when I pulled the RAM, I installed sockets and put the new RAM
into the sockets.  It worked great until I put the case back together,
then it didn't work.  I took one screw out of the case, it worked great.

What I discovered is that ONE of the RAM chips was shorting against the
shield on the bottom of the disk drive because of the extra height
provided by the new socket.  I put a piece of electrical tape over that
chip, and now the machine works fine. 

--Dave Althoff, ][.
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