My Mars seems to be working perfectly after putting in a new MPU, but it is missing the final game over sound effect. It gives the game over speech ("Battle is over, Mars is supreme")but then there should be a sound effect which slowly fades out over about 10 seconds or so. But I don't get any sound at all. Any suggestions on where to look?
Also, I don't get a sound for s16 when grounding pins on the sound board edge connector. All the other sounds are there. But I'm not sure if Mars uses s16 or not. Appreciate any help!
My Mars seems to be working perfectly after putting in a new MPU, but it is missing the final game over sound effect. It gives the game over speech ("Battle is over, Mars is supreme")but then there should be a sound effect which slowly fades out over about 10 seconds or so. But I don't get any sound at all. Any suggestions on where to look?Thanks for the help! I'm ordered a manual from PBR so I can trace the sound signals. Hopefully, I will locate the problem.
Also, I don't get a sound for s16 when grounding pins on the sound board edge connector. All the other sounds are there. But I'm not sure if Mars uses s16 or not. Appreciate any help!
On Wednesday, May 6, 2020 at 2:55:01 PM UTC-4, Bill wrote:
My Mars seems to be working perfectly after putting in a new MPU, but it is missing the final game over sound effect. It gives the game over speech ("Battle is over, Mars is supreme")but then there should be a sound effect which slowly fades out over about 10 seconds or so. But I don't get any sound at all. Any suggestions on where to look?
Also, I don't get a sound for s16 when grounding pins on the sound board edge connector. All the other sounds are there. But I'm not sure if Mars uses s16 or not. Appreciate any help!
Thanks for the help! I'm ordered a manual from PBR so I can trace the sound signals. Hopefully, I will locate the problem.
All other sounds and speech are present during game play. Is it likely an open circuit would only result in the one game over sound effect from being missing while all others work?
My Mars seems to be working perfectly after putting in a new MPU, but it is missing the final game over sound effect. It gives the game over speech ("Battle is over, Mars is supreme")but then there should be a sound effect which slowly fades out over about 10 seconds or so. But I don't get any sound at all. Any suggestions on where to look?If you ever feel up to doing any further investigation back at your shop, I would greatly appreciate it! I have peeped out every single trace I can identify between boards and can't find anything open. The only thing I am finding is that I get no sound for s16 when grounding the edge connector pins on the sound board. Not sure if s16 is used or not.
Also, I don't get a sound for s16 when grounding pins on the sound board edge connector. All the other sounds are there. But I'm not sure if Mars uses s16 or not. Appreciate any help!
On Wednesday, May 6, 2020 at 2:55:01 PM UTC-4, Bill wrote:Update on the missing sound problem. I swapped the sound board from my Spirit into my Mars. Switched the ROMS over and the speech chip which Spirit doesn't use. The game over sound came back with the Spirit sound board installed in Mars. Also, putting the Spirit ROMS in the Mars sound board and installing it into the Spirit and all sounds were present in Spirit!
My Mars seems to be working perfectly after putting in a new MPU, but it is missing the final game over sound effect. It gives the game over speech ("Battle is over, Mars is supreme")but then there should be a sound effect which slowly fades out over about 10 seconds or so. But I don't get any sound at all. Any suggestions on where to look?
Also, I don't get a sound for s16 when grounding pins on the sound board edge connector. All the other sounds are there. But I'm not sure if Mars uses s16 or not. Appreciate any help!
If you ever feel up to doing any further investigation back at your shop, I would greatly appreciate it! I have peeped out every single trace I can identify between boards and can't find anything open. The only thing I am finding is that I get no sound for s16 when grounding the edge connector pins on the sound board. Not sure if s16 is used or not.
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