On Fri, Feb 17, 2017 at 5:45 PM, Gerrit Heitsch <firstname.lastname@example.org> wrote: > On 02/17/2017 05:12 PM, Francesco Messineo wrote: >> >> On Fri, Feb 17, 2017 at 4:52 PM, Bo Herrmannsen >> <email@example.com> wrote: >>> >>> are there anyone on the list that has a 326298 board at hand? >> >> >> where did you find this number? There're a couple of different codes >> on any C64 motherboard. >> I believe I have almost all PCB revision of the C64 (there're millions >> of them still around) and I'm for sure missing KU-14194HB revision >> (the very first C64 PCB) and 250469-Rev.B (which should be the very >> last C64 PCB), but I believe I have the other ones matching all the >> schematics I've found on zimmers.net. > > > As far as I know, the 326298 is older than the KU-14194HB. yes, but should be practically identical, not that I witnessed them in real life, but I've never found any documented schematic change between them. > > Speaking of which... If anyone here has a KU-14194HB, check the state of > C107 and C108. If they are small and black, change them, they WILL leak and > C107 will destroy the trace that supplies power to pin 15 pin of the > 74LS629. Without power there, the VCO will not run => no clock signals. I whish I had one, but I think I said that already. Frank Message was sent through the cbm-hackers mailing listReceived on 2017-02-17 17:02:30
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