Re: Z80 Video Pak

From: Gerrit Heitsch <gerrit_at_laosinh.s.bawue.de>
Date: Thu, 19 May 2022 20:03:40 +0200
Message-ID: <52998bce-2b65-0abc-6eb6-fcf4671a7c40_at_laosinh.s.bawue.de>
On 5/19/22 19:18, 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.

The chip in question says 'VID PAK CG' with the CG likely meaning 
'character generator'.


> Are you talking about the chip at U18?  Do you think it might be equivalent to a 2716?

Yes, either a 2716 or a 2732 is the most likely pinout.

  Gerrit



> 
> /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 2022-05-19 21:00:03

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