/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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