Azog-Thoth@cup.portal.com (William Thomas Daugustine) (11/28/90)
Hello all. I have a 1541 drive that I am having troubles with, and was wondering if anyone can give me a hand with it. This is the original 1541 (not the -C or -II models). When I turn it on, the 'in use' LED just keeps glowing, and the head doesnt do its usual banging routine. Thru BASIC, I try: OPEN 15,8,15 and PRINT #15,"I" and we just keep sitting there. The 'in use' LED still glows, but nothing happens. Basiclly, the thing is dead:-) I replaced some of the support chips inside the unit, specificly the 6502 and the two 6522s. I dont have any of the ROMs to try out. Can someone lend a hand? With great thanx! Billy D'Augustine Azog-Thoth@cup.portal.com PS: Please reply via mail, as I dont read this newsgroup regluarly
xvj@mentor.cc.purdue.edu (Sean Ahern) (11/29/90)
In article <36289@cup.portal.com> Azog-Thoth@cup.portal.com (William Thomas Daugustine) writes: >This is the original 1541 (not the -C or -II models). When I turn it on, >the 'in use' LED just keeps glowing, and the head doesnt do its usual >banging routine. > >Basiclly, the thing is dead:-) > >PS: Please reply via mail, as I dont read this newsgroup regluarly Would anyone helping this guy out be so kind as to send a copy of the help you send him to me. I have the same problem and I can't seem to fix it. Thanks too! --- Sean Ahern \ ///====\\\ /// //|| 's will outperform a Purdue University \ ||| /// // || CGA 8088 in all xvj@mentor.cc.purdue.edu \ ||| |||\\ ===== aspects of computing. ahernsd@sage.cc.pudrue.edu \ \\\====/// \\\// || Bite, Nov 1990 -- Sean Ahern \ ///====\\\ /// //|| 's will outperform a Purdue University \ ||| /// // || CGA 8088 in all xvj@mentor.cc.purdue.edu \ ||| |||\\ ===== aspects of computing. ahernsd@sage.cc.pudrue.edu \ \\\====/// \\\// || Bite, Nov 1990
treesh@ircsun1.helios.nd.edu (12/03/90)
Try to replace the full-wave rectifier bridge for the +5 volt power supply. Chances are its weak, and cant generate enough voltage to hold the RES line high, thus keeping the 6502 in a RESET condition. ctfm