No sound on a Gauntlet 2 PCB

Shawn1976

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Ok. Before anyone pm's me back and says to check the sound board, I have three different and 100% functional sound boards and I've tried all three with no sound.
I have a Gauntlet 2 board that fires up and the graphics display flawlessly, but I get no sound. The wiring is all original and in perfect working order. I'm thinking its the main board. Does anyone know exactly what I can do to fix this problem.
Any help would be greatly appreciated.
 
Sorry I do not have the answer but when/if you find the answer let me know as I have the same issue. Off the top of my head two guesses I have would either be an issue with an amp chip if the game uses one or a bad pokey since it's an atari game. These are just guesses though.
 
Ok. Before anyone pm's me back and says to check the sound board, I have three different and 100% functional sound boards and I've tried all three with no sound.
I have a Gauntlet 2 board that fires up and the graphics display flawlessly, but I get no sound. The wiring is all original and in perfect working order. I'm thinking its the main board. Does anyone know exactly what I can do to fix this problem.
Any help would be greatly appreciated.

Check the Speaker. Check the wiring to the speaker, if the ground came off you wont' get any sound.

Do you get speech? If not, check the LM324 at 15/16U.

Sound is controlled by a 6502 at 15/16L, check that and make sure that is working. Self Test (switch on the AR board) might tell you that faster then testing with a logic probe.

You should also check the POKEY at 15L (A POKEY dieing is not uncommon for an Atari game). Then you would want to look at the YM2151 chip (15R) as this is what produces the music.
 
I will check these ROMs, but just to clerify I'm not getting any sound at all.
I already checked the speakers and their good as well as the wiring.
 
I will check these ROMs, but just to clerify I'm not getting any sound at all.
I already checked the speakers and their good as well as the wiring.

If you're not getting Music, or Speech, I would look at the LM324 first since both the Music and Speech go through the one at 15/16U. If you were just missing one or the other, then I would say the LM324 at 15/16U was probably ok (could still be bad, but not likely) , and I would be looking further back.
 
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