Re: Desoldering Apple IIc RAM chips

["William Garber" <willy46pa@garberstreet.com>]

"David Wilson" <mcs6502@gmail.com> wrote in message 1192075236.558270.90360@57g2000hsv.googlegroups.com">news:1192075236.558270.90360@57g2000hsv.googlegroups.com...
: A follow up on my IIc RAM desoldering. I gave up and
: cut the legs off the IC. Installed a machine pin socket
: and when I found a working replacement 4164 chip it
: came good. It still needs another RAM chip replaced.
:
: I am really surprised at the bad luck I am having with
: IIc RAM. I sold my only working ROM 0 IIc leaving me
: with 3x ROM FF and 1x ROM 3 (motherboard only). All
: the ROM FF boards have faulty RAM (one has even had
: two chips previously replaced (not by me) and one of
: the replacements has failed - at least that was easy
: to fix).
:
: At least I now have one fully working IIc.
: Now to upgrade the ROM.

Hi David,

I simply soldered a working ram IC over the existing one,
and they work just fine. I know, it doesn't make sense
to me either, but I tried it and it works. Haven't had
any ram problems otherwise with the IIc.

William Garber
Email Address - willy46pa@garberstreet.com
Alt. Email - willy46pa@comcast.net
Web address - http://www.garberstreet.com