Bubble Bobble by channelmaniac
From Arcade Otaku Wiki
Symptom: Constantly resets
Replaced bad EPROM at A78-08. Added jumpers at JPA and JPB and tested.
Symptom: Stuck in reset
Replaced bad EPROM at A78-8 and bad Z80 CPU at location 36. Installed jumpers at JPA and JPB to change coin up functions. Board now works but has missing audio. Replaced physically damaged caps in the sound section and tested.
Symptom: Sound intermittant and graphic corruption
Text characters were wrong color and some were replaced by colored blocks. The Bubble Bobble title screen was corrupt. Replaced bad EPROM at A78-15 and 3 bad capacitors and tested.
