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Main => Audio/Jukebox/MP3 Forum => Topic started by: MLew on April 21, 2010, 04:46:02 pm

Title: sub woofer on MK2
Post by: MLew on April 21, 2010, 04:46:02 pm
Hi, I have a Mortal Kombat 2 game housed in a Gauntlet cab, and I want to upgrade the sound.

How would I set this up? The speakers now run right to one of the pcbs. I'm not tech-y, so I would like some much needed help!

Also, there is no volume control knob, I have to go into diagnostics to raise volume, only to have it reset when the machine turns off. Are these simple to install?

Thanks
Title: Re: sub woofer on MK2
Post by: Malenko on April 21, 2010, 07:52:16 pm
if your game isnt saving the settings you might need to change the CMOS battery.
Title: Re: sub woofer on MK2
Post by: MLew on April 21, 2010, 10:49:26 pm
hmmm....any links to help explain how this is done? It doesn't save high scores either, if that matters.
Title: Re: sub woofer on MK2
Post by: HaRuMaN on April 22, 2010, 11:01:00 am
hmmm....any links to help explain how this is done? It doesn't save high scores either, if that matters.

Yep, your CMOS battery is definitely dead.
Title: Re: sub woofer on MK2
Post by: Malenko on April 22, 2010, 12:15:45 pm
When I get home I can take a pic, but the gist is you change the round grey battery on the main board.  It's a cake walk.
Title: Re: sub woofer on MK2
Post by: MLew on April 22, 2010, 12:25:05 pm
Cool, I'll check it out 

any ideas on the speaker situation? The ones in there are good, but I'd like to add a little subwoofer. What's the best way to go about that?

Thanks for the help
Title: Re: sub woofer on MK2
Post by: Malenko on April 22, 2010, 01:00:33 pm
Cool, I'll check it out 

any ideas on the speaker situation? The ones in there are good, but I'd like to add a little subwoofer. What's the best way to go about that?

Thanks for the help

You're better off just replacing the speakers with better ones. If memory serves MKII ran the DCS sound system which is just amplified MONO, so the results wouldnt be worth the effort , in my opinion.
Title: Re: sub woofer on MK2
Post by: MLew on April 22, 2010, 02:32:20 pm
Yes, it uses DCS. All I'd really want is a little extra thud when playin, but not quite sure how to go about hookin up a subwoofer   

The wires from the speakers run right into the soundboard and I  don't want the sub to fry anything.
Title: Re: sub woofer on MK2
Post by: HaRuMaN on April 22, 2010, 02:37:45 pm
My guess is, if you want to do it, you would need to splice into the speaker wires, run to an amp, and drive the woofer off an amp.
Title: Re: sub woofer on MK2
Post by: MLew on April 22, 2010, 02:41:01 pm
That's what I thought, but if I splice em, and run em into an amp to tthe sub, is there any chance of frying anything originally in the cabinet?

That's my biggest concern
Title: Re: sub woofer on MK2
Post by: HaRuMaN on April 22, 2010, 02:47:06 pm
I honestly don't know.

I replaced the speakers in my MK with better speakers, and I now get a decent thump while playing.
Title: Re: sub woofer on MK2
Post by: MLew on April 22, 2010, 04:43:07 pm
Might look into that, but def want to try the sub too. I'll try to see if I can find anything.

If anyone has done this, some tips would be greatly appreciated. :)
Title: Re: sub woofer on MK2
Post by: Malenko on April 22, 2010, 10:32:35 pm
k, well 2 people are telling you to not bother with the sub and just get better speakers, so if you ---fudgesicle--- up your cab its on you.

As for the CMOS battery, its the round thing near the DIP switches.

(http://forum.arcadecontrols.com/index.php?action=dlattach;topic=90051.0;attach=146263;image)

You may have to remove the daughter board if you cant get to it, but I popped it off with no issues without doing so.
Title: Re: sub woofer on MK2
Post by: MLew on April 26, 2010, 12:50:47 pm
Yea, changin cmos shouldn't b a problem. I would really like to try for a sub tho, but can't find any good info on what/how to do it. I'm gonna leave it alone instead of trying to splice the wires. Seems that would drive power from sub into the soundboard regardless of an amp for it.
Title: Re: sub woofer on MK2
Post by: MonMotha on April 27, 2010, 11:50:29 am
The amp on the sound board won't be able to drive a sub.  However, there is a line level output available (I think it's labeled line in or something like that, but as the board is built for MK2, it is effectively a line out) that you could run into a powered sub.

This is a stock cabinet?  I found the speaker Midway supplied to be pretty decent for what it was tasked with reproducing.
Title: Re: sub woofer on MK2
Post by: MLew on April 27, 2010, 02:23:21 pm
Not exactly stock, it was a Gauntlet cab, and refurbished for MK2, everything looks stock from the Gauntlet cab, as far as speakers go.
Title: Re: sub woofer on MK2
Post by: MLew on April 29, 2010, 05:59:50 pm
Well, checked cmos....dead as a doornail. Replaced and works great now....now for the sub. My bro has a sub with an amp, not sure how to go about hooking it up