sorcerer williams no sounds can any one help

kuglerarcade

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well this is what i have done to try to get some sounds. .i do here a hum threw speakers like its the lights flash. i put the 2
audio chips u2 and u3 into speech board and put a new audio amp chip
u47 into the cpu.still no sound any ideas thanks
p.s ..i took the speech board and hooked it up to my jungle lord and
got some sounds so speech board is working so im thinking some thing
in the cpu maybe the sound rom chip i dont know
 
Did you test the volume pot with and ohm meter? Is there continuity to the cpu board?
In sound test mode, remove 1J20 on cpu board and short pins 3-4 together with a jumper, do you here any sounds?
 
Have you pushed the test button on the sound board ?
When you do you should hear all the sounds followed immediately by all the speech.
It will perform this test with just the power,speaker and volume pot hooked up , no need for the larger connector from the mpu.Try it in the game and if it doesn't work try it in jungle lord.If it works in jungle lord then it has to be a volume pot or power issue.If it doesn't work in jungle lord then it has to be the sound / speech board. If it does work then i guess it could be an mpu problem.
 
yes i did try it, worked in my jungle lord i just got some speech .so i knew the sound board its self was good.i believe its the sound rom on the cpu becouse i can turn the him noise up and down so i kinda rule out the pot
 
Is the -12v good? Are pins 19 and 39 on U13 clocking while sound should be heard? U13 has alot to due with sound/speech. Pins 10-17 are used to create the sounds through U48.
 
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