That is normal for the board to do a self-test when powered, then the MPU sends a reset and forces reboot (and second 'gong'). On a side note, the number of 'gongs' can indicate different issues with the board such as ROMS not matching checksums, etc..Replacing the crystal and the resistor seems to have worked.
Machine comes on, sound comes on. Interestingly, last time I turned it on, it sounded the boot gong twice, once at initial power on, and then after the board fully booted. Sound was fine though. W/E....
~Brad
