i have a ms pacman board. i bench tested it with ground and 5 volts to pin 17, works well. however, in the game i turned it on a wisp of smoke came off the board. the trace from Ic1 regulator to the zener burned up, the zener is shorted. after i replace the zener, i'd like to bench test it with 7 volts AC. it looks like the two 7 volts Ac leads could go to pins A and C? is that correct, and all it will need? thanks
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| Parts Side | Wire Color | | | Solder Side | Wire Color | |
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| 7 Volt Center Tap (GND) | Red-Black | A | 1 | 7 Volt Center Tap (GND) | Red-Black | |
| 7 Volt Center Tap (GND) | Red-Black | B | 2 | 7 Volt Center Tap (GND) | Red-Black | |
| 7 Volt AC | Orange | C | 3 | 7 Volt AC | Orange | |
| 7 Volt AC | Green | D | 4 | 7 Volt AC | Green | |
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