That's a ROM, but I wouldn't be too sure about the 27xx pinout. Those style ROM's look familiar and may be a 23xx pinout. It should be easy to figure out which by checking data/address/control lines and where they go to on the socket. On 20/05/2022 1:18 am, Raj Wurttemberg wrote: > Hi smf, > > I uploaded a high-res picture to the file share. This is the file name, "data-20-z80-vid-pak.png". Mine has the Z-80 daughter-board. > > Are you talking about the chip at U18? Do you think it might be equivalent to a 2716? > > /Raj > >> -----Original Message----- >> From: smf <smf_at_null.net> >> Sent: Thursday, May 19, 2022 11:33 AM >> To: cbm-hackers_at_musoftware.de >> Subject: Re: Z80 Video Pak >> >> Thanks >> >> I think there must be another rom on the board somewhere for the font as >> this rom is full of 6502. >> >> At least the 24 pin DIP at the back of this picture looks like it could >> be a rom. >> >> https://postimg.cc/tZDLVqQT >> >> All the pictures I've found online are so blurry you can't actually read >> any of the chip id's though. >> >> On 18/05/2022 22:25, Raj Wurttemberg wrote: >>> Hi smf, >>> >>> I have uploaded a bin file of the EPROM, a picture of the EPROM, and two >> pictures of the screen that show the cartridge working (sys 36864 and sys >> 36867). I do have the manual and program tape if needed. >Received on 2022-05-20 03:00:09
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