NEC uPD7220/GDC Design Manual

[Göran Axelsson]

> I have bought in the eigthies a eurocard sized board with memory and
> the 7220 GDC (for a lot of money). So, it must be possible to build a
> graphics module on 160x100 mm with the 7220, especially now that large
> capacity RAM chips are available. I also found a schematic with the 7220
> but I cannot say if that is the schematic of the module ...
> The schematic is just 2 pages, so I can scan that and email it to you.
>  
> I have found the manual I remembered. It is called "µPD 7220 GDC GRAPHICS
> DISPLAY CONTROLLER", and has 112 pages. It contains software sections and
> hardware descriptions. In the back is a minimum GDC system design schematic.
>  
> I don't work at Océ any longer, so I don't have the nice fast hi-res
> scanning machines available to me anymore. I guess that it is possible to
> scan the 112 pages, but I don't need the manual anymore. For snail mail
> cost (from The Netherlands), I can send it to you. Contact me privately.
> It would be nice if you could scan it and pass that on to Al for archiving
> on bitsavers.
>  
> greetz,
> - Henk.
>  
>   


I can scan the manual and send it to Al. It would probably be faster and 
cheaper to send it to me in Sweden... unless you really wants the  dead 
tree version of the manual.

I have added a picture of the main board of the Nokia VDU301 VT 220 
terminal to my website. The gold plated angled pin header on the top 
right side is just connected to a board with two DB25 serial ports, a 
mouse port and the keyboard connector.
The blue and red connectors to the left is the connectors for the analog 
video section and the power supply.
http://www.home.neab.net/guest/Nokia-VDU301-mainboard.jpg

I've got a ton of these boards and literally a ton of complete 
terminals, anyone in need of a Nokia terminal?

/Göran