Battlezone Pcb

djw90

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Donor 2011
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Ok I bought a Battlezone Pcb a few weeks ago. It seemed to play ok. But It would not go into test mode on the monitor. The tones indicated either b1 or b2 bad ram.

The game still played fine. I ordered the Battlezone HS kit and installed it last night. Same thing game wont go into test mode. But now I dont have any of the tank fire sound, or the sound when your hit, or when you hit a target??? All other sounds are present??

I removed the High score Kit and put Pcb back in without it. Same thing. No fire sounds???? I reseated all the roms, even installed a different rom set. same thing. no fire sounds???

I put the High score kit on a different PCB works fine.

Any clue where to look for the Tank fire sounds:confused::confused:
 
Last edited:
Check the schematic audio section (last page).
Look for components common to the missing sounds, like J3 (4066 switch) and the op-amp at K5.

cheers
/Tim
 
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