Galaga (bootleg) Repair Logs
Maker: Seoul ? (says "SEOUL 2002" on the splash screen)
Symptom: Intermittently locks up or loses sound
This appears to be 100% a factory screw up. There was a solder blob on the bottom of the board on traces connecting to pins 14 and 15 of the sound CPU. Removed the solder blob and a chunk of the green trace coating on both traces came up with it. Checked traces to make sure the continuity was OK for each and that the short between them was removed.
Replaced 1 leaking and 1 bloated cap along with 4 more for good measure in the sound circuit. Resoldered the amplifier chip to finish repairing the audio issue.