Kalamath
New member
Since I got Asteroids up and running today, I figured it was time to start on my Space Duel. I bought the game DOA. Inside it is very clean. The monitor is a WG 19K6101, again, insides are very clean.
Turning on power lights all cab lighting, and provides good voltages all over: PCB, ARII, Monitor. In fact, it's closer to "proper" voltages than any Atari game I have. Game is totally dead though.
-Spot killer on
-Solid lights on CP (game is set to free play)
-Self Test switch & all buttons have no effects
-Game does NOT play blind. No output from XY on my scope.
-Swapped in a working 6502 CPU, same conditions as above.
Pin40 on the AVG is pulsing like mad. Jumpering WDDIS to GND has no effect. Pin40 on the CPU is LOW.
I'm really not sure how to proceed on this one. I've got my multi meter, logic probe, and oscilloscope ready, Journey playing, and Robotron nearby in case I need a break. Any suggestions?
Turning on power lights all cab lighting, and provides good voltages all over: PCB, ARII, Monitor. In fact, it's closer to "proper" voltages than any Atari game I have. Game is totally dead though.
-Spot killer on
-Solid lights on CP (game is set to free play)
-Self Test switch & all buttons have no effects
-Game does NOT play blind. No output from XY on my scope.
-Swapped in a working 6502 CPU, same conditions as above.
Pin40 on the AVG is pulsing like mad. Jumpering WDDIS to GND has no effect. Pin40 on the CPU is LOW.
I'm really not sure how to proceed on this one. I've got my multi meter, logic probe, and oscilloscope ready, Journey playing, and Robotron nearby in case I need a break. Any suggestions?
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