Zimmers.NET Files (formerly ftp.funet.fi)

/pub/cbm/schematics/drives/new/1551/


Here is the schematic diagram of the Commodore 1551 disk drive.

Files

1551crt.gif 1999-06-20 14833
Reverse engineered schematic diagram of the 1551 cartridge interface.
Drawn by Jerzy Sobola, June 20, 1999. Downloaded from
http://www.republika.pl/jsobola/schematy.htm.
1551main.gif 1999-06-20 48133
Reverse engineered schematic diagram of the 1551 main board.
Drawn by Jerzy Sobola, June 20, 1999. Downloaded from

http://www.republika.pl/jsobola/schematy.htm. This diagram
shows a 6523 at location U3, while the Commodore schematic diagram
shows a 6525A TPI there.
1551misc.gif 1999-06-20 16965
Reverse engineered schematic diagram of miscellanous 1551 parts.
Drawn by Jerzy Sobola, June 20, 1999. Downloaded from

http://www.republika.pl/jsobola/schematy.htm.

251860.gif 2000-11-05 160112
Schematic diagram, revision 4

paddle-251925.png 2003-12-15 172769
Schematic diagram of the interface paddle that is plugged into the
cartridge port. The integrated circuits are a PLA that is used as
an address decoder, and a 6523 TPI. Uploaded by Attila Grósz.

parts.txt 2002-08-13 526
Commodore 1551 parts list, composed by William Levak.

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