Leon’s Test ROM in a Bally -51 Sound Board

Leon’s Test ROM in a Bally -51 Sound Board
Lacking a third hand, I couldn't show pin 15 of the 6802/8 halting when the diagnostic button is pressed, then resuming after memory test completes successfully.
The -51 sound board requires 12VDC and 5VDC to run. On my bench, I jumper from a 5VDC source to TP2.

[@mcufuk6799]

pinball effect devresi hoş puanlama da dahildir ve ışık