List of JAMMA PCB's that require -5 volts
Small add-on circuit to add -5V to your PSU/Jamma harness
[1] Negatron from Dimension Engineering
ATTENTION - The Negatron device provides -5v@500mA, which may be insufficient for some pcbs.
Cabinet Power Suplies with known issues
Sega Astro City 400-5198-01 PSU's suffer from having an under-powered -5v regulator rated at only 500ma fitted by design. This is not powerful enough for a lot of games that require -5v, most notably Bubble Bobble and Taito G-Net motherboards. A kit is available for this PSU that upgrades the weakness available here:[2]. Other models of Astro City cabinets/PSU's may be affected but have not been verified as yet.
JAMMA PCB's that require -5 volts
Cadash - No sound
Double Dragon - Required for music
Donkey Kong
Fighting Hawk - No sound
Gals Panic 2 - No sound
Mortal Kombat 2
NBA JAM - No sound
NBA Maximum Hangtime - No sound
Pit Fighter - No sound
Rainbow Islands - No sound
Rampage World Tour
Thunder Fox - No sound
Toki - Required for sound amplifier
Most if not all Midway pcb released in the 90's
Combat Tribes - No sound
Super Dodgeball (tecmo PCB, not neogeo) - No sound
Bubble Bobble - required for board functionality
Rastan - No sound
Liquid Kids- No sound
Volfied - No Sound