That's the original long board. 1540007 is the number of the board itself. There should also be a PCB ASSY number of 1540001. The only difference between a 1540 and a 1541 is the ROM and the labels on the outside. Many 1540's were upgraded to a 1541 by replacing the ROM. On Thu, 16 Sep 1999 g.j.p.a.a.baltissen@kader.hobby.nl wrote: > Hallo allemaal, > > I thought I finally found a 1540. It was packed in white foam inside a very old > original carton saying it is a 1540, made in Japan. on the back of the top half > is a metallic sticker saying it is a 1540, ser # 146595, but the front says > it's a 1541. Neither one of the stickers seems to damaged or tempered with. The > board says PCB NO 1540007 (C) 1981 REV A TEC-6HB-H made in Japan Commodore. > 6502 dates 2881, one 6522 4982, the other 4681. The LO-ROM says MOS 325302-01 > 21YA, the HI-ROM MOS 901229-05 1983 4683. The last ROM seems to be th same as > in my 1541 short board. Either this drive is one of the first 1541 long board > version or either somebody schanged the ROM. FYI, all the soldered IC's are > date 1981 as well. > > Can anybody tell me more? Thanks. > > Groetjes, Ruud > > > - > This message was sent through the cbm-hackers mailing list. > To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi. > - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tcm.hut.fi.
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