RE: Repairing a SFD-1001 (8250/LP, 8050, 4040, 3040, 2040)

From: Hoffmann-Vetter, Martin <>
Date: Tue, 16 Aug 2011 01:57:22 +0200
Message-ID: <004b01cc5ba7$1928ebc0$1b09a8c0@mhvnb10>

> However, if you're not worried about that, then would it not be
> easier to make an adapter using IC sockets, so the 6530 appears
> like a 23xx ROM or 27xx EPROM chip? Then it could be read in a C64
> cartridge or eprom burner.

No, that didn't work. The 6530 need the Phi2 clock signal. I've tried it
without the clock signal and read only FF. Now i want to shift the addess
lines A0 => A1, A1 => A2, ... and put the Phi2 to A0. I think, now i can
read the rom. But i've not tried it, because no time left...



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Received on 2011-08-16 00:00:03

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