MERCS B-Board #1: No video. Actually a fix on the C-board, simply one of the inductors had a broken leg. Reattached, works fine.
MERCS B-Board #2: No video. Also a fix on the C-board, this time by reflowing the solder on the big CPS B-12 chip.
Renegade bootleg: Not much sound. It would scream at me when I first turned it on, then nothing. The audio CPU would work at startup for a moment then go silent, albeit without /HALT or /RESET. Checking the audio cpu ROM, it gave me no matches on the mame database. I pulled a few romsets and found that by inspecting other ones,