For repairs to your equipment or additional info: email: rcarlsen at tds dot net
First on this list: how to pack equipment properly for shipping, and what happens if you don't!
B128
(aka 700 series) computer: schematics and ROM binary files
C16
computer: schematics
C116
computer: schematics
C64 computer:
repair articles and schematics, service manual, black "brick" PS, Computer
Saver mod,
adding a reset switch, using an EPROM to replace the PLA, adding heat sinks
to IC's, etc.
C64
& C128 "joystick" control ports: troubleshooting the ports, joystick,
mouse, paddles, etc.
C65 computer:
motherboard photo only
SX64 portable
computer: repair articles, schematics, adding an "invisible" reset switch,
disk drive swap,
photos, keyboard repairs, how to replace missing handle caps, the SRQ line
mod, etc.
PET64 computer:
photos, ROM binaries, & misc info.
Plus/4 computer:
a beginners tutorial, service and troubleshooting mauals & power connector
info.
C128 computer:
repair articles, schematics, VRAM upgrade, PS repairs, etc.
C128DCR
USA (metal case) computer: repair articles, schematics, add a fan, WP bypass,
etc.
VIC20
computer: repair articles, schematics, etc.
The
datassette (C2N and 1531) and some common problems and their solutions
1541 disk
drive: repair articles and schematics for all versions, WP bypass mod,
reset mod, etc.
1551 disk
drive: schematics only
1571 disk
drive: repair articles and schematics, PS info, reset mod, WP bypass mod,
transit card, etc.
1581 disk
drive: schematics, PS, reset mod, diagnostic procedures and bug fixes.
Enhancer
2000 disk drive: schematics, photos and service manual
MSD SD-1 and
SD-2 disk drives: repair information, schematics, Ops manual, CLD MassDupe,
etc.
FSD-1 disk
drive, misc photos only, DOS ROM binary file.
INDUS-GT
disk drive: schematics only
SFD-1001
disk drive: schematics, DOS ROM binaries, etc.
17xx series RAM EXPANSION units: schematics and board layout.
Commodore monitor schematics and hardware repair information.
How
to replace the power switch in your Commodore monitor
Diagnostic
cartridges: what Commodore factory techs used to repair computers
Adapters
to replace Commodore ROMs with newer EPROMs
"Promos"
software and manual for Jason-Ranheim EPROM burner
Misc. hardware
and software: diagnostic and other cartridges, zip files, printers, Ketek
enclosure,
VIC1020, VIC20 switch, CSI switch,etc.
Hacks,
upgrades, testers and misc info about your Commodore and related hardware:
adding a fan,
testing the control ports, desoldering IC's safely, disk drive # switch,
repairing a cassette tape,
keyboard repair, pinouts of various Commodore connectors, testing the SID
chip, PS repair, etc.