> Am 12.09.2015 um 11:23 schrieb Michał Pleban <lists@michau.name>: > > Hello! > > Simon. wrote: >> Interesting. >> Unfortunately most larger ICs are missing, including RAM, ROM and the custom Commodore chips for the c900. > > RAM and ROM are not a problem. Z8000 and Zilog peripherals would be a > problem, but should be obtainable with some effort. But if the Commodore > DMA chip is missing, this is a show-stopper - it is impossible to obtain > it anywhere. The quality if the photos is too poor for me to see which > chips are missing and which are not. Unfortunately I forgot to check my C900 mainboards when I visited my storage this evening. I will try to check if I can decipher my hires photos. > > Also, the custom Western Digital SASI hard disk controller is missing - > it is impossible to get it as well. And graphic card is missing. For both it seems that circuit diagrams are available. The LR graphics card contains only standard parts, only the PALs are custom. The controller is a standard 6845b. > >> Note that these reworks are standard, I have only seen mainboards that look identical. >> Anyone interested in trying to restore this to a working system? > > Not possible to restore from just the mainboard that but I will place a > bid just in case ;-) > Me, too... 8-)) Regards, Simon. Message was sent through the cbm-hackers mailing listReceived on 2015-09-12 20:00:07
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