Posted By
JamesC
on 2005-10-04
00:09:51
|  Re: Using Commodore 1541 disk drive on a Commodore + 4
Monty,
For our purposes, a 1541 is a 1541 is a 1541. They'll all work the same on the Plus/4 regardless of minor variations on the nameplate.
When you attach the 1541 to the Plus/4 and turn them both on, do any of the lights on the 1541 come on? The green light (on regular 1541 style machines 1540-1541-1551-1570, or the red light on squared drives 1541-II - 1571) is the power indicator, while the other light indicates that the drive is actively doing something.
If the disk drive comes on and passes its' self-test (no blinking lights after 3 seconds), and you still aren't getting a response to PRINT DS$, then attach the 1541-II to the Plus/4 and run these tests again. This will help us narrow the problem down to either a chip inside the 1541, the cable, or a problem in your Plus/4.
If you absolutely cannot get the 1541 to work with the Plus/4, take it back to the C64 and test it there.... and remember the 1541 won't share, so if it's attached to the Plus/4 and the C64 at the same time, even if one is off, the 1541 won't like it and will refuse to talk to either of them.
Last possibility is that the 1541-II is out of alignment, so its disks can't be read by the old style 1541.... but that won't affect the drive status lights or the response to a DS$ inquiry.
I'll be back in about 7 hours to see how you're doing.
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