Picked up a very nice Missile Command this week, but it has no sound. Need some help here. Here's what I've done already:
- Verified all wires to the speaker are all connected.
- Tested and replaced the ARII board with a known working replacement
- Tested the volume pot
- listened to the speaker on full blast, just a hum that gets louder as you turn up the pot
- cleaned the edge connector on the board with a pencil eraser and re-seated it.
- removed and re-seated all socketed rom chips on the game pcb



