HC14 (right)
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PIN 01 <=> PIN A55 Edge Top (SDRMPX), also goes to a cap(?) right below it with the other side being ground
PIN 02 <=> PIN 03 on HC14 (same ic), PIN 11 on LS374's #7 and #8
PIN 03 <=> PIN 02 on HC14 (same ic), PIN 11 on LS374's #7 and #8
PIN 04 <=> PIN 11 on LS374's #5 and #6
PIN 05 <=> PIN 02 on LS374's #1 and #5, PIN 19 on LS245 (top)
PIN 06 <=> PIN 19 on LS245 (bottom)
PIN 07 <=> GND
PIN 08 <=> nothing? (checked 4 times)
PIN 09 <=> PIN 09 on LS374 #4, PIN 16 on LS374 #8
PIN 10 <=> PIN 11 on LS374's #1 and #2
PIN 11 <=> PIN 12 on HC14 (same ic), PIN 11 on LS374's #3 and #4
PIN 12 <=> PIN 11 on HC14 (same ic), PIN 11 on LS374's #3 and #4
PIN 13 <=> PIN A47 Edge Top (SDPMPX), also goes to a cap(?) right below ic (right one) with other side being ground
PIN 14 <=> VCC
LS245 (top)
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PIN 01 <=> GND
PIN 02 <=> PIN 18 on LS245 (bottom), PIN 18 on HC373 (top and bottom)
PIN 03 <=> PIN 17 on LS245 (bottom), PIN 17 on HC373 (top and bottom)
PIN 04 <=> PIN 16 on LS245 (bottom), PIN 14 on HC373 (top and bottom)
PIN 05 <=> PIN 15 on LS245 (bottom), PIN 13 on HC373 (top and bottom)
PIN 06 <=> PIN 14 on LS245 (bottom), PIN 03 on HC373 (top and bottom)
PIN 07 <=> PIN 13 on LS245 (bottom), PIN 04 on HC373 (top and bottom)
PIN 08 <=> PIN 12 on LS245 (bottom), PIN 07 on HC373 (top and bottom)
PIN 09 <=> PIN 11 on LS245 (bottom), PIN 08 on HC373 (top and bottom)
PIN 10 <=> GND
PIN 11 <=> PIN 14 on 27c322 (all vroms)
PIN 12 <=> PIN 16 on 27c322 (all vroms)
PIN 13 <=> PIN 25 on 27c322 (all vroms)
PIN 14 <=> PIN 23 on 27c322 (all vroms)
PIN 15 <=> PIN 20 on 27c322 (all vroms)
PIN 16 <=> PIN 18 on 27c322 (all vroms)
PIN 17 <=> PIN 27 on 27c322 (all vroms)
PIN 18 <=> PIN 29 on 27c322 (all vroms)
PIN 19 <=> PIN 06 on HC14 (right)
PIN 20 <=> VCC
LS245 (bottom)
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PIN 01 <=> VCC
PIN 02 <=> PIN 30 on 27c322 (all vroms)
PIN 03 <=> PIN 28 on 27c322 (all vroms)
PIN 04 <=> PIN 24 on 27c322 (all vroms)
PIN 05 <=> PIN 21 on 27c322 (all vroms)
PIN 06 <=> PIN 24 on 27c322 (all vroms)
PIN 07 <=> PIN 26 on 27c322 (all vroms)
PIN 08 <=> PIN 17 on 27c322 (all vroms)
PIN 09 <=> PIN 15 on 27c322 (all vroms)
PIN 10 <=> GND
PIN 11 <=> PIN 09 on LS245 (top), PIN 08 on HC373 (top and bottom)
PIN 12 <=> PIN 08 on LS245 (top), PIN 07 on HC373 (top and bottom)
PIN 13 <=> PIN 07 on LS245 (top), PIN 04 on HC373 (top and bottom)
PIN 14 <=> PIN 06 on LS245 (top), PIN 03 on HC373 (top and bottom)
PIN 15 <=> PIN 05 on LS245 (top), PIN 13 on HC373 (top and bottom)
PIN 16 <=> PIN 04 on LS245 (top), PIN 14 on HC373 (top and bottom)
PIN 17 <=> PIN 03 on LS245 (top), PIN 17 on HC373 (top and bottom)
PIN 18 <=> PIN 02 on LS245 (top), PIN 18 on HC373 (top and bottom)
PIN 19 <=> PIN 05 on HC15 (right)
PIN 20 <=> VCC