CBM REPAIR INFORMATION, SCHEMATICS AND MORE...
                             latest updates and/or corrections: 5-18-2012

     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.