Getting sound from cps2 board via 6 slot mvs

Hi all,i have a slight problem,ive just recently aquired a cps2 A&B board marvl vs cap for my mvs cab,ok the thing is game booted fine,but i dont have any sound whatsoever does anyone have any ideas to what i can do to fix this problem? thanks george.

This may sound like a Obvious awnser but have you cleaned the contacts

actually,i did with q-tip they were not to bad to be honest,the person i bought board off is a hundred percent,i trust him,but im thinking im maybe not wired up or something for sound,im not very technicaly minded,but i did change the suicide battery ok so average i guess.

I got rid of all my CPS2 stuff..
As I remember the boards are a Mono set-up whereas your six slot would be wired for Stereo.(I need to check again)

Plus there is a volume button on the mother board..
Yes,check under specs..
http://cps2shock.retrogames.com/techinfo.html

http://cps2shock.retrogames.com/


.MONO....................................................
Loudspeaker (-) L 10 Loudspeaker (+)

thanks for reply chris,i did indeed check volume,i even went into bios on cps2 setup and changed from Q-sound to mono but no change

Glitch said:

thanks for reply chris,i did indeed check volume,i even went into bios on cps2 setup and changed from Q-sound to mono but no change

Click to expand...

I think you need to change the wiring in your cab to mono..if you haven't did that..

The easy way is to just remove the wires going to the speakers,from the speakers
Take L & 10 and run it to one speaker leaving the other speaker unhooked..

Or the top board may not be making good contact with the bottom board.

You may need to press them together and see what happens.
Are they clipped together..?

Yer they have the 2 clips going in quite snug,i will try what you said though,thanks.

Check in the manual below and you'll see the difference in speaker wiring..



6 Slot MVS..

http://www.hardmvs.com/manuals/6SlotServiceManual.pdf

http://www.hardmvs.com/html/PCBcompare.htm
http://www.crazykong.com/pins/

oh by the way chris l&10 sorry mate bit lost

Glitch said:

oh by the way chris l&10 sorry mate bit lost

Click to expand...

From the Jamma harness...find Pin/Wire L & 10 they are opposite of each other in the harness..They run up to the TWO speakers plus two ground wires....
You need to take off L & 10 from the two speakers..and connect them to one speaker creating Mono..taking off the ground wires on the speakers..the other two wires..


Making sure everything is marked to go back to where it was taken off.


Your cab is set up like below..

http://www.crazykong.com/pins/NeoGeo246.pin.txt


NEO GEO (2,4, AND 6 SLOT)
FM: Kevin_Eshbach@bigfoot.com

Pinouts
---------------------------------------------------------------
SOLDER SIDE | PARTS SIDE
_______________________________|_______________________________
Ground | A | 1 | Ground
---------------------------|---|---|---------------------------
Ground | B | 2 | Ground
---------------------------|---|---|---------------------------
+5V | C | 3 | +5V
---------------------------|---|---|---------------------------
+5V | D | 4 | +5V
---------------------------|---|---|---------------------------
-5V (Not Used) | E | 5 | -5V (Not Used)
---------------------------|---|---|---------------------------
+12V | F | 6 | +12V
---------------------------|---|---|---------------------------
KEY | H | 7 | KEY
---------------------------|---|---|---------------------------
Coin Meter 2 | J | 8 | Coin Meter 1
---------------------------|---|---|---------------------------
Lockout 2 | K | 9 | Lockout 1
---------------------------|---|---|---------------------------
Speaker(+) Left * | L | 10| Speaker(+) Right *---------------------------|---|---|---------------------------
Test Switch | M | 11| Audio Line Out **
---------------------------|---|---|---------------------------
Video Green | N | 12| Video Red
---------------------------|---|---|---------------------------
Video Sync | P | 13| Video Blue
---------------------------|---|---|---------------------------
Service Switch | R | 14| Video Ground
---------------------------|---|---|---------------------------
Coin 4 | S | 15| Coin 3
---------------------------|---|---|---------------------------
Coin 2 | T | 16| Coin 1
---------------------------|---|---|---------------------------
2 Player Start | U | 17| 1 Player Start
---------------------------|---|---|---------------------------
Player 2 Up | V | 18| Player 1 Up
---------------------------|---|---|---------------------------
Player 2 Down | W | 19| Player 1 Down
---------------------------|---|---|---------------------------
Player 2 Left | X | 20| Player 1 Left
---------------------------|---|---|---------------------------
Player 2 Right | Y | 21| Player 1 Right
---------------------------|---|---|---------------------------
Player 2 Button A | Z | 22| Player 1 Button A
---------------------------|---|---|---------------------------
Player 2 Button B | a | 23| Player 1 Button B
---------------------------|---|---|---------------------------
Player 2 Button C | b | 24| Player 1 Button C
---------------------------|---|---|---------------------------
Player 2 Button D | c | 25| Player 1 Button D
---------------------------|---|---|---------------------------
Select Down | d | 26| Select Up
---------------------------|---|---|---------------------------
Ground | e | 27| Ground
---------------------------|---|---|---------------------------
Ground | f | 28| Ground
---------------------------------------------------------------



You need to change it to this..( L & 10) ran to one speaker..

Like Below..

Thanks chris,now its getting out of my league have a friend who has a better knowledge of these things will pass on to him thanks for all your help mate appreciated.

Have you tried the RCA stereo jacks on the 'A' board ?

Raz

Hi again raz,what is the deal with them are they just l r out,i sent a leads to tv to see if it would output sound but nothing.

A big thanks to chris and raz,got sound sorted now via cps2 game on mvs cab nice one.

Glitch said:

A big thanks to chris and raz,got sound sorted now via cps2 game on mvs cab nice one.

Click to expand...

Sweet.

Enjoy.