Space Ace Diagnosing Board

Lastsix

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Joined
Nov 1, 2024
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I've been trying to repair a space ace cabinet. I have a dexter emulator running but the main board is seemingly not sending commands and sits on a black screen. Checked the five roms on the main board and they seem original; tried different dip settings and laserdisc modes on dexter. Is there an easy way to function test cinematronic boards, considering they don't have video out? Also have a dragons lair board I can test against.

Input welcome.
 
Couldn't find any info about the main connector so made this. This seem correct? I assume the 24v is for audio.

dragons lair.jpg
 
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