Re: Help please: "stuttering" IIGS

[grent@comcast.net (Geo3)]

"Scott V. McGuire" <fake@f.a.k.e.net> wrote in message news:<u%cZa.111702$852.31202@twister.nyc.rr.com>...
> I've got a ROM 03 Apple IIGs with a Transwarp GS, MicroDrive hard card
> and a GS-RAM Ultra memory card.  Today it started "stuttering" by
> which I mean working for a bit than freezing for a bit then working
> again ... When it unfreezes it seems to respond to buffered key
> presses and mouse movements from when it was frozen.  I haven't made
> any recent changes.  Has anyone seen this behavior before?  I've
> tried: switching keyboards and mice, turning on/off dma on the hard
> drive, lowering the speed from 8MHz to 6.25MHz (by changing the
> oscillator on the Transwarp GS, reversing a change I made over a week
> ago) to 2.8 MHz to 1.0 MHz (via Control Panel).  The problem may have
> gone away at 1.0MHz, but the system was so slow that I'm not sure I
> could tell - and I didn't leave it at that speed very long.
> 
> Help appreciated,
> -Scott

Hi,
  I have seen this before. It has happened to me. The cause was the 8
mini din connector on keyboard. The connect was bad. The computer
would boot slower than 1MHZ. One of the leads on the keyboard circuit
board has broken its soder connection. Connection is made, then
unmade. Information is not getting back to the computer or is
interrupted. Seems like the computer is waiting for it.
 The solution is to resoder the mini din connections on the keyboard.
I did it an all is fine. This is on of the weak spots on the IIgs. I
have repaired a few boards for bad connections. In one the copper
trace circut was broke, repaired (jumped it) with a small solid copper
wire.
 Take Care,
       George from Michigan