On 08/06/2014 07:40 PM, MikeS wrote: > Thank you! Have been looking for this (admittedly not very hard ;-) If anyone here has verified accounts (ideally with a photo) of what the 7710 and everything between 7702 and 7706 are, my 'chip_numbers.txt' is always looking for input. I assume the 7713 is a 74LS04, but haven't seen it anywhere, that's why it's not in the list yet. Gerrit > ----- Original Message ----- From: "Gerrit Heitsch" > <firstname.lastname@example.org> > To: <email@example.com> > Sent: Wednesday, August 06, 2014 12:32 PM > Subject: Re: mosaic screen on c64 > > >> On 08/05/2014 10:48 PM, didier derny wrote: >>> No 7708 >>> >>> But 7712 et 7709 >> >> Could be either of them... If you have the parts, replace them and see >> if that changes anything. If not, you wasted about 2 Euros (incl. >> sockets). If that doesn't change anything, try replacing the PLA on >> U17 (906114-01, 251064-01, 82S100 or 93459, the latter 2 usually >> labeled 'C64A') >> >> Here's the replacement matrix for the MOS 77xx and 87xx: >> >> 7707 7406 >> 7708 74LS257 >> 7709 74LS258 >> 7711 74LS139 >> 7712 74LS08 >> 7714 74LS02 >> 8708 74LS257 >> 8712 74LS08 >> 8713 74LS04 >> >> Gerrit >> >> >> >> Message was sent through the cbm-hackers mailing list > > > Message was sent through the cbm-hackers mailing list > > Message was sent through the cbm-hackers mailing listReceived on 2014-08-06 19:00:03
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