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Need Schematic Motorola Amplified Speaker

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#1
Mods, feel free to move this, I wasn't sure where to post it.

I have a Motorola speaker with a built-in amplifier (they used to call them PowerVoice) as is used with mobile radios in fire apparatus and such - believe the model is NSN6027A-1. This is not the older speaker with the metal enclosure - it's a little newer, has a beige plastic enclosure with blue Motorola and logo at the bottom, the face has a bunch of small round holes. Looking for a schematic or wiring diagram (or directions on how to hook it up!). It has a 7-were cable with a square 5-pin connector - wire colors are red, yellow, white, black, green, brown, and clear. The red and yellow wires are both connected to the same pin, and the black and white wires are both connected to a second pin... the other colors, green, brown, and clear, have their own pins. I haven't had a chance to knock the back off and check to see where each wire connects inside the speaker assembly, but I suspect the red/yellow and black white connections are 12VDC, two of the other three are audio in, and the remaining one is ground... any thoughts? Thanks!

Doug in Gaithersburg MD
 
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#3
Thanks!

pro92b, you are the man! Many thanks - I've linked to the site, haven't read it yet but hopefully this may be just what I need... how did you find it - my google search didn't turn this one up, obviously! I owe ya one!

Regards,

Doug
 

W6XPA

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LOS ANGELES, CALIFORNIA
#9
Okay I found It.

Okay, just so anyone in the future knows, I will tell what I found out because I sure had a hard time with this. The Motorola HSN4035A amplified speaker was made for use with the MCS 2000 Radios. Its a 3rd generation motorola with a 9 pin molex connector. In order to use this speaker without the connector for use with all things audio: You cut the connector off and strip off a good 2 inches of the outside of the cable. Inside there is two white wires. Disregard those, cut them off so they don't conduct with anything and tape them away. There will be red and black wires. 12V to these will power the speaker amplifier. Then there is a blue wire. This is the positive speaker input for audio. With it you will see a shielded with light plastic wire that will have no color it's just a plain wire. This is the audio input negative. There will be some string inside the cable too but just cut that away. It's there to make the cable stronger.

That's it! I hope this helps the next person coming along for info on this speaker!
 
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