Having trouble getting stereo from MV-1F

Gummy Bear

Gummy Bear

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Hello all.

I consolized an MV-1F about a week ago and am having dificulty getting stereo from it.

Here is a picture of how I've wired the stereo output pins into my SCART connector:

Dscn1347.jpg


The 'stereo/mono' switch is working and it is in the stereo position.
As you can see, I've wired both of the audio GND (-) pins to the single audio GND of my SCART connector.

There is no seperation in the audio test screen or in-game.


Any ideas would be appreciated, fellas.
 
thegreathopper

thegreathopper

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mvs

Well first of all you should connect to the headphone pins and not the speaker outputs on your mvs board...

You only need to run 1 audio ground connection, also double check your L and R on your scart plug..
 
Gummy Bear

Gummy Bear

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thegreathopper said:
Well first of all you should connect to the headphone pins and not the speaker outputs on your mvs board...

You only need to run 1 audio ground connection, also double check your L and R on your scart plug..
Click to expand...


Surely the headphone output and speaker output are the same except for the volume levels attainable. They're both supposed to be stereo.

I did think about using a single audio GND but they appear to be common.

I already checked the lead, it's fine.
It's the same lead that I use on my Consolized MV-6F and handheld MV-1C and all systems have the same pinout on the A/V socket.


What if I connected the audio GND wire to the audio GND on the edge connector?
Whould that make a difference?
 
Lashujin

Lashujin

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I seem to rememner there is a good reason to use the headphone out instead of speaker.

I used headphone on mine and it worked out great!
 
Gummy Bear

Gummy Bear

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Lashujin said:
I seem to rememner there is a good reason to use the headphone out instead of speaker.

I used headphone on mine and it worked out great!
Click to expand...


Do you have an MV-1F?


I used the speaker pins on my 6F with no problems.

I'll give the headphone connector a try though.
 
Lashujin

Lashujin

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Gummy Bear said:
Do you have an MV-1F?


I used the speaker pins on my 6F with no problems.

I'll give the headphone connector a try though.
Click to expand...

I consolized my own MV-1F about 2 years ago. I have since sold the mobo, but I remember most of the details about it.
 
thegreathopper

thegreathopper

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F

The speaker level output is far too high to connect to a scart socket...
one other thing have you connected the +12v on the jamma connector, you will need that for sound...
 
Gummy Bear

Gummy Bear

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thegreathopper said:
The speaker level output is far too high to connect to a scart socket...
one other thing have you connected the +12v on the jamma connector, you will need that for sound...
Click to expand...


Indeed I have. I was getting sound, but it was mono.
 
Gummy Bear

Gummy Bear

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Lashujin said:
I seem to rememner there is a good reason to use the headphone out instead of speaker.

I used headphone on mine and it worked out great!
Click to expand...


Many thanks, Lashujin. :)

I took your advice and moved my audio wires en masse to the headphone side.
Glorious stereo can now be heard. :)


I am a happy bunny.



One thing though: When I put the audio switch in the MONO position, it increases the volume a little bit but the sound is still stereo.

In this instance, what is the desired position for the switch?
Does it matter?


Thanks again, fellas.
 
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