--- William Levak <email@example.com> wrote: > On Sat, 17 Apr 1999, Ethan Dicks wrote: > > > I re-found an old C-64... I know it's old because it has a 5-pin DIN > > for a video connector. > > Only the original board had the 5 pin connector. This version was not > compatible with PAL and was not sold in Europe. Right... no PAL jumper in the video cage. Another sign of age: one ceramic ROM and ceramic DRAM. > > Inside, the board says Rev B in copper. Were any Rev A boards released? > > That must refer to the artwork and not the board itself as all rev. B > boards had 8 pin connectors. Other boards I have say "Rev B" in the white silk-screen. This has a small legend in the middle of the board, on the opposite edge from the video connector ASSY 326298 REVB (C) 1982 COMMODORE 64 > > U5 is p/n 901225-01, U4 is p/n 901227-01, and U3 is p/n 901226-01, all > > soldered in place. > > That's the first version of the ROM's Right. The ROMs page on funet mentions that the RS-232 constants assume a 1.0Mhz CPU (my guess is that they forgot to update the numbers from the V(I)C-20. I used to use this with a VIC-modem, so at least at 300 baud, it's close enough. -ethan _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail firstname.lastname@example.org.
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