pin  name          pin  name
---------------    ---------------
1    GRD           A    GRD
2    GRD           B    GRD
3    16.5 VAC      C
4    16.5 VAC      D
5    +5V           E
6    START LP 1    F
7    6.3 VAC       H
8    START LP 2    J    SERVE LED
9    COIN 2 NC     K
10   COIN 2 NO     L
11   COIN 1 NC     M
12   COIN 1 NO     N
13   START 1 NO    P
14                 R
15   START 2 NO    S
16                 T    GRD
17   STATIC ANT    U    PADDLE 1 (5k)
18   PADDLE 2      V    VIDEO
19   SERVE SW      W
20   SPEAKER       X
21   GRD           Y    GRD
22   GRD           Z    GRD