Re: Chip clip adapter for 9000

Hi James,

Working or not, I always cut out soldered CPU's and toss them. They are
cheap and easy to get so I don't really care that much.

Clip over and...

1) ...you'll need to make sure the 20 year old CPU pins are clean to get
a good contact.

2) ...you may have to cut tracks/lift pins/set jumpers etc. to make sure
CPU is WHOLLY disabled. Some CPU's cannot be wholly disabled (all pins
floating).

3) ...if you get a bus fault you may have to pull the CPU anyway.

4) ...you have twice the capacitive & resistive load on all the CPU
pins, particularly clock pins, and are hoping the original design was a
good one :-)

Is all this added uncertainty worth 10 mins with pin cutters and a nice
new socket with a nice new known good CPU in it?

Regards,

Paul.

> James Bright wrote:
>
>
> Are the clip adapters for the 9000 series pods still around? If I
> remember correctly, Gottlieb soldered in the CPUs in the sys80 CPU
> boards. I'm going to start working on some in the next few weeks. Just
> wondering how hard they are to find and if people have used them with
> any success. I suppose I could desolder the CPU, but if it's working,
> I'd rather not.
>
> JB
>
> --James Bright
> www.QuarterArcade.com
> Restored Arcade Games for your Home
Received on Tue Apr 01 13:52:06 2003