So I decided to twist the chip in the socket a bit and test the pin again. Pin 8 was giving me nothing but when I touched the solder pad on the board, I got pulsing as expected. So I will continue investigating what the issue is with the sound board installed in FP and report my findings!įollowing the steps in the post by cody_chunn, I got to the point where I was testing IC12 (sound ROM) and checking pins 1 through 8 with the logic probe for pulsing. The bad news is that I now have a non-working sound board in FP! The good news is that both sound boards have been recapped and repinned now. The good news is that when I swapped the sound boards between the two games and put a speech board board into BK with the new ROMs, I finally got BK working! Sounds and speech are fine! Yay! I could swear I did this at some point already but I never got the knight to speak! So it looks like both speech boards are okay. And of course when I put the speech board into FP, it worked just fine. I hate removing and replacing ROMs but I needed to figure out which board was causing the issue. Crap! So out of frustration, I decided that I would pull the speech board from Firepower and swap it with the one from BK to see if I could isolate which board it was. Followed all the steps to test with, exactly the same results. I'm open to suggestions at this point! Also, appreciate the info that HHaase has already given me!īad news first. Also, I'm about to order new capacitors for the boards just for preventive maintenance. I think I'm going to check the jumpers on my FP sound board and see if it's set up the same way and try another swap. So if anyone has any great ideas, let me know. The most peculiar thing is that the only way to get sound of any type is to set the sound board dip switch 1 to on (pushed left) and dip switch 2 to off (pushed right) which is the opposite of what the proper settings should be and opposite of what my FP switches are set to. Both boards worked in FP as expected but behaved the same way in BK. I swapped the speech board (but not the sound board) between the machines and switched the ROMs over. I also have a Firepower that works perfectly. Some voltages were a bit high (20V instead of 18V and 14V instead of 12V) but I don't think that would cause a speech-only problem. I've checked voltages with a DMM (accidentally blew up a trace on the board which I've now jumpered). All the cables are fine, the jumpers are set properly, I've reseated all the ROMs, I've checked continuity from the ROM legs to the solder pads on the back of the boards, I've checked the continuity of the ribbon cable. I have tried to follow the thread that cody_chunn started. My game just keeps looping continuously without a pause. In other threads guys are asking if there is a pause before the sounds repeat. When I use the diagnostic test on the sound board I get three sounds which loop. I get sound effects when I use the diagnostic tests (using the coin door switches) but again no speech. I get the rest of the sound effects during game play but no speech. The game mostly works but I have never had any speech. I acquired a BK that needs plenty of TLC. I will readily admit I'm no expert here but am pretty good at basic troubleshooting and following instructions. I've tried to search and read every other BK speech issue thread I can find and still am not sure what to try next.
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