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Flakey ZipChip 8000
- Subject: Flakey ZipChip 8000
- From: Steven Hirsch <snhirsch@gmail.com>
- Date: Sat, 14 Feb 2009 21:53:41 -0500
- Newsgroups: comp.sys.apple2
- User-agent: Thunderbird 2.0.0.19 (X11/20090105)
- Xref: g2news1.google.com comp.sys.apple2:6853
I have an 8Mhz. ZipChip that's been out of service for a while due to general
silliness and I decided to give it another shot today. This is one of the
units with cheap, thin tin-plate pins that bend if you look at them too hard.
After a heart-stopping experience bending two of them on the way into the
motherboard, I decided to put it more or less permanently into a socket of its
own for protection.
About 15 minutes of aggravation, I realized that no amount of care in the
world was going to get all 40 leads into a machine-pin socket :-(. I finally
was able to seat it into a conventional tin-contact socket and plug that into
the motherboard.
The problem is that this thing won't start unless I press lightly with my
thumb on the front right corner. At that point, it comes up and runs more or
less reliably (although it does not reset from OA-Ctrl-Reset, I have to power
cycle with my thumb on the chip).
This thing may not even have one more round of insertion left before pins
start breaking off, so I'm looking for advice on solving the intermittant
problem and mounting it permanently in... something. What have folks done
with these things to get around contact problems? Is there life after broken
pins?
I can almost imagine a circuit board with a pair of 20-pin headers and 40
holes offset a bit so I can solder the ZipChip on permanently.