From: Fuller Dennis (RBNA/CIT3) (Dennis.Fuller_at_us.bosch.com)
Date: 2005-01-29 14:19:31
Chris,
Thanks for taking the time to document this for me!
-----Original Message-----
From: owner-cbm-hackers@ling.gu.se [mailto:owner-cbm-hackers@ling.gu.se]
On Behalf Of Chris Bongaarts
Sent: Friday, January 28, 2005 9:12 PM
To: cbm-hackers@ling.gu.se
Subject: Re: Questions about SFD-1001 and IEEE Flash!
As Fuller Dennis (RBNA/CIT3) once put it so eloquently:
> 3. I have lost the manual for the IEEE Flash! which was a major
> mistake. The IEEE Flash! has this white jumper wire that you have to
> clip to one of the resistors inside the computer. I can't remember
> which one! Is there a place I can order another manual or does
someone
> have a copy that they have posted online?
I have the manual here handy, including the C64-C addendum. Where the
clip goes:
"Style 1: oldest C-64's, Assembly #326298 (number small)"
Hook to the right side (looking from the front of the machine) of
R44 (closest to front of a group of three resistors near center of
board).
"Style 2: newer C-64's, most common style, Assembly #250407 (number in
white, front of electronics board)"
Hook to front side (looking from the front of the machine) of R44
(leftmost of a group of three resistors near serial/video ports).
"Style 3: newest C-64's, sheetmetal heatshield-cover, Assembly
#250425, number in white, front of electronics board"
Hook to right side (looking from the front of the machine) of R44
(center of a group of three resistors near center of board).
SX-64
Hook to pin 7 of the PLA. "Locate the 6 pin and 8 pin connectors
from the top front of the CPU board [which runs down the side of the
SX-64]. The PLA chip is the second chip down just to the rear of the
8 pin connector... Locate pin 7 of the PLA chip by counting seven
back, on the top row of pins of the PLA chip."
C-128
Hook to pin 29 of the 8502 CPU chip. "Pin 29 is the ninth pin from
the front of the C-128 on the right side of the 8502 chip. Pin 29
is the twelfth pin from the rear on the right side of the 8502
chip." Go through the right hand heatclip hole in the shield to get
it to fit.
"The new C-64C with the letters and symbols on top of the keycaps (PCB
ASSY NO. 250469)"
"Locate the fourth large chip from the left edge of the main
electronics board (location U6 [chip is marked 8500])... Connect the
white microclip to the eighth pin, from the front of the computer, on
the right side of the chip."
You might also want the DIP switch details (1-4, numbered from back to
front):
1: Main on/off switch (right = on, left = off; reset computer to make
effective)
2: Device 8 routing (right = device 8 routed to IEEE, left = routed to
original serial bus)
3: Devices 9/10 routing (right = devices 9/10 routed to IEEE, left =
routed to original serial bus)
4: Device 4 routing (right = device 4 routed to IEEE, left = routed to
original serial bus)
Devices 7 and 12-31 are always routed to IEEE. Devices 5,6, and 11
are always routed to the original serial bus.
If someone wants to archive this info somewhere (e.g. FUNET) it would
probably be a good thing.
--
Chris Bongaarts
cab@bongalow.net
http://umn.edu/~cab
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