DK jr cpu board.. ID chip ?

Leinhit

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was looking over my DKJR board.

whats the chip at H7-8 on the CPU board? mine is all messed up.. previous person solder multiple legs back on... 2 over from the Z80A


just thinking its a good place to start , game gives random graphics and sounds on the screen... barely recognizable graphics, etc.. no background, etc..
 
was looking over my DKJR board.

whats the chip at H7-8 on the CPU board? mine is all messed up.. previous person solder multiple legs back on... 2 over from the Z80A


just thinking its a good place to start , game gives random graphics and sounds on the screen... barely recognizable graphics, etc.. no background, etc..

It's just the sound CPU, it's an Intel 8035 or the Fujitsu part, it's just a CPU connected to a DAC for the music effects playback. Those just cause sound problems when they go bad, they don't kill the board overall.

I'd start checking with the z80, the z80 DMA, and then see if the ROMs are getting enabled, no stuck address lines on the buffered address bus.

- James
 
Roger that... could be part of the problem... the sound was all messed up... frozen on some sounds... jump sounds constantly, etc..

will replace.. and I have a new z80a coming...

after that... both this and DK go to Dick Milliken if no improvement...

:)
 
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