What is this V9990 board

Door opcode

Expert (108)

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28-01-2013, 18:07

Just got this:
http://page10.auctions.yahoo.co.jp/jp/auction/m100977680
Anyone has any idea what it is?

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Van mars2000you

Enlighted (5984)

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28-01-2013, 18:18

I think it's an evaluation board, as seems to indicate the Japanese description :

(Excite translation)

I send the board by which VDP of YAMAHA V9990 is carried.
RAM for a Z80 compound chip and VDP, etc. can be checked.
However, whether it operates normally has the unknown parts carried.
Checking of operations is not carried out at all.
(There is not an EPROM.)
It did not utilize, although awarded as an object for research at this auction before.
I need your help by a no claim no return.
I ship in the letter pack 500 from Hyogo Prefecture.
It restricts to the letter pack 500 and is mailing cost no charge.
When a Yu-pack is wished, I pay 500 yen here.

See also :
http://www.ctv.es/USERS/hnostar/TECH/GFX9000/gfx-2.htm

Van opcode

Expert (108)

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28-01-2013, 20:15

I am not convinced that this is the same evaluation board as the one described in the V9990 manual. The Yamaha eval board had more connectors according to the manual, and they never mentioned a Z80 on the board, neither the EPROM socket. We are going to find out soon... Wink

Van Jipe

Paragon (1504)

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29-01-2013, 15:48

is not the Yamaha V9990 evaluation board , i see it at home friend in past , it's smaller

Van opcode

Expert (108)

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29-01-2013, 16:50

Thanks, Jipe!