Splatterhouse PCB issue Please give me some direction here

Shawn1976

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Splatterhouse PCB issue Please give me some direction here

I have a Splatterhouse PCB and have it hooked up through a standard jamma harness.
When I power up the board the video is perfect. The problem that I am having is the sound isn't working. But when I disconnect the speaker molex connection and reconnect it the sound comes on.
Now I checked to verify that the jamma harness connections are good so I connected the harness to different PCB (Battletoads, Spiderman) and the sound comes on with no problem at all.
Can someone let me know what the problem might be.
I really don't want to have to disconnect and reconnect the speaker molex everytime on the Splatterhouse to get the sound to work.
Im thinking a ground issue but im not sure exactly where due to the jamma harness working without issues on the other jamma PCB.
Im scratching my head here.
Any help would be appreciated.
 
Well I wanted to try something else, so I removed the Splatterhose PCB board from the game and put it into a brand new cabinet with a brand new jamma harness and got the same sound issue. I'm now thinking that I have a PCB board issue. Does Riptor still do Splatterhouse PCB repair?
 
been a while since I had one of these splatterhouse pcbs but I remember the pcb had audio out from the jamma edge connector and also from one of the connectors off the pcb. there was actually a way to make it stereo sound using the connection off the board. I can't tell you how from memory but try to do a search on it. you might be able to use the sound out from the connector instead of the jamma edge connector

of course you could always send it out for repair. send Channelmanic a pm and see if he would take a look at it for you.

Awesome game btw
 
Are you using the molex connectors because you want stereo sound? By default most System 1 boards that I've seen only have a molex attached for the right audio output, as they pump mono sound out via the JAMMA harness using the usual JAMMA speaker connections. It's the left speaker output which is used for mono output depending on the setting of the STEREO/MONO jumper JP4

Are your cabs definitely wired for mono, or stereo?

Why are you attaching to the molex connector?

Is it the right one that you are attaching the speaker output to? Or do you have molex connectors on left and right?

If it is a board fault then I can repair these boards, but as i'm in the UK you'd be better off with Channelmanic, as he is based in the US. :)
 
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Have you tried replacing the electrolytic caps in the sound section? You might as well do it any way due to the age of the board and it's only like $3.
 
Alright.
I did some tinkering with the board last night and here's what I've got.
The board as well was initially set on JP4 to Mono.
The set up I currently have on the jamma harness that was connected to the speakers of the game and I needed to disconnect it and then reconnect it to get sound was four wires(hooked two Black/ground wires going to each speaker and the red and green "10" and "L" connections from the jamma harness going to each speaker separately)
So, through a few suggestions from fellow klovers I decided to test the board with a single speaker (hooked the red and green "10" and "L" directly to the speaker with no ground wires) and low and behold I got sound without disconnecting the speaker.
Now what I am needing to find out is how I can hook up the right and left speakers to get sound out of both of them without using the separate "Right" audio connection on the top right corner of the board.
Is this possible with the wiring setup that I have?
 
You can just daisy chain off the speaker thats working and hookup the other speaker. That will give you 2 speakers outputting mono (the left channel)

Or you can setup stereo sound by connecting the other speaker to the R(right) output off the board. And change the jumper to stereo sound
 
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