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| There are several versions of the Commodore 1541 disk drive. Some are covered by the technical manual, other schematics were scanned from later documents. There is even a reverse engineered diagram of the 1541-II drive. | |
| ../ | [Parent directory] |
| service/ | Commodore 1540/1541 Service Manual in HTML format. |
| tech/ | 1540/1541 technical manual. Schematics and other information for drives up to 1541 B. |
| Date | Size | Filename | Description | |
|---|---|---|---|---|
| 1999-12-18 | 11240 | 1541-II-powersupply.gif@ | Reverse-engineered schematic diagram of the 110-volt 1581 and 1541-II power supply. Created and uploaded by William Levak <[email protected]>. According to him, you have to break the case open to get inside. Jameco sells a case that can be used to replace it. | |
| 1996-10-31 | 190045 | 1541-II.340503.gif | 1541-II schematic diagram, by Commodore. According to the 1571 Service Manual, the Gate Array (251828 or 64H156) has some different revisions (-01, -02 and -03). Revisions -01 and -03 have only 40 pins, but -02 has 42 pins. Frank Kontros ([email protected]) reports that the (chinese) 1541-II boards he has seen only carry the assy no. 340503, although there are some differences. Also, his boards have the latest (-03) Gate Array, with some wiring on the pin 21 (OSC). | |
| 1997-01-17 | 112882 | 1541-II.gif | ||
| 1997-01-17 | 1286 | 1541-II.readme | 1541-II schematic diagram. Drawn and uploaded by Levente H�rsfalvi ([email protected]). | |
| 1999-12-02 | 1334 | boards.txt | Information about different 1541 board versions, composed by William Levak. | |
| 1999-12-02 | 1929 | parts.txt | 1540/1541/1541A/SX-64 drive parts list, composed by William Levak. | |
| 1999-12-02 | 2883 | pla.txt | 1541/1571 40/42 Pin Gate Arrays, composed by William Levak. | |
| 1996-05-08 | 202102 | short-251748-rev.E-left.gif | ||
| 1996-05-08 | 191735 | short-251748-rev.E-right.gif | Short board 1541, assy no. 251748, rev.E, sheet 3 of 4. On this board, a 40-pin custom chip replaces some 74xx logic. |
[FTP://NIC.FUNET.FI/pub/cbm/schematics/drives/new/1541/ | SunSITE ftp | SunSITE http]
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