RE: Z80 Video Pak

I read the EPROM out as a 2716. The filename on the share is, "data20-z-80-video-pak-rom-u18.bin"

Let me know if you need it read out as something else.   I'm using a GQ-4x4 EPROM programmer.

/Raj

> -----Original Message-----
> From: Clockmeister <clockmeister_at_internode.on.net>
> Sent: Thursday, May 19, 2022 8:52 PM
> To: cbm-hackers_at_musoftware.de; Raj Wurttemberg <rajaw@c64.us>
> Subject: Re: Z80 Video Pak
> 
> 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.
> >