What arcade boards actually need -5V?

A

Amano Jacu

Charles Barkley
Joined
Sep 11, 2001
Posts
8,594
Lately we've been talking a lot about PSU's. We know every board will need 5V and 12V (well, maybe some can even pass without 12V), but the JAMMA harness has a pin for -5V. However none of my boards or the manuals which I have checked need it. So does anybody about any arcade game that actually uses -5V?
 
ttooddddyy

ttooddddyy

PNG FTW,
Joined
Nov 29, 2001
Posts
8,335
I have Mortal Kombat 2, that uses -5 volts, assume the others in the series do also.
 
MKL

MKL

Basara's Blade Keeper
20 Year Member
Joined
Mar 8, 2002
Posts
3,686
Yes, I think that all Williams/Midway games from early 90's need -5V...I have a Smash TV and the -5v goes to the sound board...Total Carnage is the same...all these pcb's have a separate board for sound...
 
A

Asure

Captain Dick,
Joined
Sep 14, 2001
Posts
644
Known -5 users (from top of my head :) )

- Midway boards (nba/mk1/2)
- Midway wolf unit (Mk3 / UMK3, Hangtime)
- Older midway non-jamma stuff (robotron 4 examp.)
- Older Sega system16 (shinobi/golden axe)

There's probably lots more. Usually if the -5 is missing, its just a missing wire and you can run a new one from the power supply to the jamma connector..
 
P

Pro_Gear

Another,
20 Year Member
Joined
May 18, 2001
Posts
395
I had problems with my Rastan board awhile back. It needed the -5V
 
C

candycab

Vice's Love Slave
Joined
May 3, 2002
Posts
2,167
Originally posted by Pro_Gear:
<strong>I had problems with my Rastan board awhile back. It needed the -5V</strong><hr></blockquote>

Same here I have a Taito Rastan that has sound issues when there is no 5 volt lead hooked up.

Also I know the Konami GX based games require the 5 volt lead as well , they too will have sound issues without it.

[ January 07, 2003: Message edited by: candycab ]</p>
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