Help with Astro City Stereo wiring

[KBZ]

Looking at modifying my Astro City for Stereo Audio, but I'm a bit confused with this guide.

This is my PSU Pinout.



My MV2F is feeding the amp with Audio L + R

Can I then just hook up the MV2F, and wire the PSU/AMP SP+ SP- labeled outputs to both positive terminals of the speakers and then wire grounds to negatives?

MV2F----audio R------SP+ IN (psu/amp)----SP+ OUT(psu/amp)------Right Speaker +
MV2F----audio L------SP- IN (psu/amp)----SP- OUT(psu/amp)-------Left Speaker +

GND---------------------------------------------------------------Right Speaker -
GND---------------------------------------------------------------Left Speaker -

[Dave_K.]

Looking at modifying my Astro City for Stereo Audio, but I'm a bit confused with this guide.

This is my PSU Pinout.

The guide is not talking about your PSU pinout, its talking about the SP+ SP- wires coming from your jamma loom or volume knob on your PSU to your speakers. They call it called an AMP connector because that's the kind/make of connector with pins, nothing to do with amplification.

What you are looking for is a connector like this:



Notice how it has 4 wires come out of one side, and only two wires come out the other side (with the extra pins wired in a loop).

[KBZ]

I found what I think you mean. It was under the CP and isn't labeled anything.



If I'm using a stereo PCB (MV2F), then those two wires looped into 4 will be my Audio R + L?

Then I need only connect them to the appropriate positives on the Speakers and wire the negatives to ground?

[opt2not]

Be careful, there are two AMP plugs in the NACs that look roughly the same. One is for the sound connection, the other is the AC power line meant to be plugged into the official Amp. You do not want to mix these up.

[KBZ]

These are the only ones I could find. They aren't labeled anything either. It's also just an Astro City.


So then, Audio from the PCB is fed through the volume pot on the PSU. Then the output from there is daisy chained into a dual-mono speaker setup amplified by the pcb itself.

I need to do is hook up each speaker it's proper audio signal and a ground.

[AeroCityMayor]

That wiki guide is not 100% accurate - not all Astro PSUs have a sound amp.

Which model is your PSU or even better, how high it go from the base to the top? (3" or 9")

Cheers,

Ralph.

[KBZ]

That wiki guide is not 100% accurate - not all Astro PSUs have a sound amp.

Which model is your PSU or even better, how high it go from the base to the top? (3" or 9")

Cheers,

Ralph.

3", it's the small one with no amp I believe.

I've decided just to build my own mvs to jamma adapter and splice the speakers to some rca jacks. Messing with the internal wiring of the Astro is a bit confusing to me, and I should probably maintain it's ability to play mono pcbs anyway.

My final goal is to have this setup for mame, so I'll need to do this anyway. Panning on hooking up one of these ebay car amps.