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Title: Bally S9000 No Sound. Missing parts? Post by: Phantsm on December 19, 2013, 12:56:54 PM I just got my new Alpha and everything works great except the sound. I removed the reels and noticed that some of the plugs are not where they are supposed to be. Something tells me that I'm missing a part, but I could be overlooking something simple. I tried looking at the wiring diagram, but it didn't help much. Please look at the pictures and let me know if I'm missing anything. If someone has a picture of their sound setup it would be helpful so I can plug everything together correctly.
Thanks a bunch! Title: Re: Bally S9000 No Sound. Missing parts? Post by: coorslight115 on December 19, 2013, 05:37:49 PM Here is a picture showing the location of the sound amplifier, do you have one? plug looks the correct size. If you need one Rudy has them for $29.00
Title: Re: Bally S9000 No Sound. Missing parts? Post by: Phantsm on December 19, 2013, 06:04:42 PM I dont see the amplifier in my slot. Where exactly would it sit?
Title: Re: Bally S9000 No Sound. Missing parts? Post by: coorslight115 on December 19, 2013, 06:18:42 PM above the reels to the right
Title: Re: Bally S9000 No Sound. Missing parts? Post by: Phantsm on December 21, 2013, 12:53:30 AM I found the amplifier thanks to you picture and noticed a burn mark on the board. Do I need to plug the other two cables in somewhere? I also have a feeling the burn mark is stopping the sound from working. Rudys sells the replacement board for $15 bucks but what about the two cables?
Title: Re: Bally S9000 No Sound. Missing parts? Post by: coorslight115 on December 21, 2013, 01:41:31 AM Yes that blown capacitor most likely will cause no sound, check for pinched wires to the speakers, belly door is known for harness damage to the sub woofer
Title: Re: Bally S9000 No Sound. Missing parts? Post by: CommTech on December 21, 2013, 05:36:10 AM I found the amplifier thanks to you picture and noticed a burn mark on the board. Do I need to plug the other two cables in somewhere? I also have a feeling the burn mark is stopping the sound from working. Rudys sells the replacement board for $15 bucks but what about the two cables? Take a look at your Amplifier board. Do you see any burn marks on that? The fact you have burn marks and blown components on the back-plane board would indicate that perhaps your amplifier board may be shorted. I do not have the schematics for the audio amp or the back-plane board, so I am not able to trace anything out for you. Title: Re: Bally S9000 No Sound. Missing parts? Post by: idylewild1 on December 21, 2013, 07:39:19 AM Have seen this several times. The sound amplifier is usually good. You will need a new RCU backplane board where the burned capacitors are located. This circuit is where they filter the 24V to the sound amp. I thinks this problem is caused by someone plugging in the sound amp in with power applied. I have always replace the RCU board and it has fixed this problem.
Title: Re: Bally S9000 No Sound. Missing parts? Post by: CommTech on December 23, 2013, 02:10:23 AM An easy way to check your Audio amp for a short in the power supply circuit ...
Take an ohm meter and check between pins 4 and 5 of the 5 pin header located along the edge of the PC board not covered by the heat sink. If those two pins are NOT shorted your good. :89- If they are shorted, you will damage your new board if you try and use it. :81- |