Midway L Shape Space Invaders Pinouts Sheet Manual

							Midway ‘L’ Shape Space Invaders Pinouts
Sound Board (Daughterboard)
11 / 14 pin Connector Pins 8 pin Connector Pins
Ground 1 Ground 1Ground 2 Move Right 2
Coin 3 Move Left 3
Coin Meter Ground 4 Tilt 4
Coin Meter 5 Key 5
Power-On-Reset 6 Fire 6
Key 7 1 Player Start 7
Speaker - 8 2 Player Start 8Speaker + 9
V Audio (+18v? +12v OK) 10V Audio Return (Ground?) 11
No Connection12No Connection13No Connection14
CPU/ROM Board (Motherboard)
Solder Side Pins Parts Side
+5v DC A 1 +5v DC+5v DC B 2 +5v DC+12v DC C 3 +12v DC+12v DC D 4 +12v DC
-5v DC E 5 -5v DC
No ConnectionF6No Connection
KEY H 7 KEY
No ConnectionJ8No ConnectionNo ConnectionK9No ConnectionNo ConnectionL10No ConnectionNo ConnectionM11No ConnectionNo ConnectionN12No ConnectionNo ConnectionP13No Connection
Ground R 14 GroundGround S 15 GroundGround T 16 GroundGround U 17 Ground
No ConnectionV 18 B+W Video Signal
NOTES:
1. The +18v DC power supply runs OK on +12v.
2. The Power-On-Reset (Daughterboard pin 9) must be tied to earth or the game will not run!
This may result in the game making noises and a blank/garbage screen for up to 10 seconds.
A better way is to simulate the POR using the circuit shown to the right:*** Disclaimer ***  This document is supplied for information only and I cannot be held responsible for any damage
you may cause to yourself or your game whilst acting on advice given.Midway  L Shape Space Invaders Pinouts
Downloaded from: www.robotron-2084.co.ukDocument Version: 1.0
Last Updated: 14
th January 2002
+5v DC
Ground
220
µF 16v
Electrolytic
Cap - +10K
Ω
Resistor
To Daughterboard
POR - Pin 9
Ground+5v DC321
84049