Defence Command
Manufacturer: Outer Limits
Year: 1981
Class: Defender Bootleg
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From: salem@clear.net.nz
Subject: Re: defence command pinout

PCB is a 2 board marked BB10A and BB10B

                     comp side           ckt side
                       1 gnd               a +5
                       2 gnd               b +5
                       3 gnd               c +5
                       4 gnd               d +5
                       5 -5                e
                       6 -5                f
                       7                   h shoot
                       8 thrust            j
                       9 smart bomb        k
                      10 hyper space       l
                      11                   m back
                      12 down              n
                      13 up                p
                      14 start 1           r start 2
                      15 coin              s
                      16 coin              t sp+
                      17 +12               u
                      18 +12               v
                      19                   w -5 (runs the dac for the sound)
                      20                   x
                      21 g                 y r
                      22 b                 z sync

hope this helps someone
dave