Airduel (Irem 1990)

SW1

                   1     2     3     4     5     6     7     8    
No. of Players   
3                 off   off
2                 on    off
4                 off   on
5                 on    on

difficulty
normal                       off   off
easy                         on    off
hard                         off   on
very easy                    on    on


dips 5 & 6 not used

demo sound
no sound                                             off
sound on                                             on

test mode
normal                                                     off
test                                                       on



SW2

                   1     2     3     4     5     6     7     8
screen flip
normal            off
flip              on

dip 2 & 3 not used

coinage
1 Coin  1 Play                      off   off   off   off   off
2 1                                 off   on    off   off   off
3 1                                 off   off   on    off   off
4 1                                 off   on    on    off   off
5 1                                 off   off   off   on    off
6 1                                 off   on    off   on    off
1 2                                 off   off   on    on    off
1 3                                 off   on    on    on    off
1 4                                 off   off   off   off   on
1 5                                 off   on    off   off   on
1 6                                 off   off   on    off   on
2 3                                 off   on    on    off   on
3 2                                 off   off   off   on    on
4 3                                 off   on    off   on    on
freeplay                            off   on    on    on    on

coinage showing A  B
Adjust Coin A
A 1 1                               on    off   off   *     *
A 2 1                               on    on    off   *     *
A 3 1                               on    off   on    *     *
A 5 1                               on    on    on    *     *

Adjust Coin B
B 1 2                               on    *     *     off   off
B 1 3                               on    *     *     on    off
B 1 5                               on    *     *     off   on
B 1 6                               on    *     *     on    on


* = blank, so probably not used (leave off??)



Pinouts. Connector is 28 way but NOT jamma


Parts
Side


GND         1    A   GND
GND         2    B   GND
+5          3    C   +5
+5          4    D   +5
            5    E
-12         6    F   +12
            7    G
            8    H
            9    I
SPEAKER     10   J   SPEAKER 
            11   K
RED         12   L   SYNC
BLUE        13   M   GREEN
            14   N
            15   O
            16   P
1P START    17   Q   2P START
1P UP       18   R   2P UP
1P DOWN     19   S   2P DOWN
1P LEFT     20   T   2P LEFT
1P RIGHT    21   U   2P RIGHT
1P FIRE 1   22   V   2P FIRE 1
1P FIRE 2   23   W   2P FIRE 2
1P FIRE 3   24   X   2P FIRE 3
            25   Y
            26   Z
GND         27   i   GND
GND         28   ii  GND



Typed by The Guru
theguru@emuunlim.com