Cobra 2000 mic wiring help

[dasquishman]

Hey all I have a realistic pwr mic. Can soeone help me with the pinouts for a Cobra 2000??
Here is the mic info!



Hand Held Noise (210-1175) Pinouts Faxback Doc. # 15888
Cancelling Microphone

Pin 1.....Shield/ground (rec)..........Shield/ground (trans)
Pin 2.....Connected to Pin 4 (rec).....Floating free (trans)
Pin 3.....Floating free (rec)..........Grounded to Pin 1 (trans)
Pin 4.....Connected to Pin 2 (rec).....Audio "hot" (trans)
Pin 5.....Grounded to Pin 1 (rec)......Floating free (trans)

1 = GND/GND
2 = CONNECT PIN 4/FREE
3 = FREE/GND 1
4 = CONNECT 2/AUDIO "HOT"
5 = GND 1/FREE

1 = NO COLOR LISTED
2 = BLUE
3 = RED
4 = WHITE
5 = BLACK

[TheCBDoctor]

Hi dasquishman

The pin-out for the Cobra 2000 GTL is:

Pin 1) Audio
Pin 2) Audio shield ground
Pin 3) Receive
Pin 4) Chassis ground
Pin 5) Transmit

You can tie pins 2 and 4 together if you have a 4 wire Mic, but there may be times when you may get a buzz or a squeal depending if you are running with an amp or if the Mic is a power Mic. I recommend using a 5 wire Microphone.

In the receive mode pin 3 is grounded to chassis ground. In the transmit mode Pin 5 is grounded to chassis ground. Pins 2 and 4 are at the same DC potential, but are not at the same AC (audio) potential.

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I hope this of some help.

Respectfully,

[dasquishman]

Humm don't know if this is right. Mic I have here is wired.
Pin 1)White
pin2)Black&Ground
Pin3)Nothing
Pin4)Tied to pin 2
Pin5)Red

Any help be appreciated greatly!

[dasquishman]

I know the blue wire is for the Noise Cancelling part of the mic. Just figured I'd add that in.

[dasquishman]

bump for help

[TheCBDoctor]

Humm don't know if this is right. Mic I have here is wired.
Pin 1)White
pin2)Black&Ground
Pin3)Nothing
Pin4)Tied to pin 2
Pin5)Red

Any help be appreciated greatly!

I don't know what the color code is for your Mic, but you will need the receive wire to go to Pin 3 for you to hear the receive audio.

Try:

Pin 1) white audio
Pin 2) audio shield this is the wire that is wrapped around the audio wire.
Pin 3) blue wire
Pin 4) Black wire----chassis ground
Pin 5) Red Transmit

Good luck,

[dasquishman]

Humm don't know if this is right. Mic I have here is wired.
Pin 1)White
pin2)Black&Ground
Pin3)Nothing
Pin4)Tied to pin 2
Pin5)Red

Any help be appreciated greatly!

I don't know what the color code is for your Mic, but you will need the receive wire to go to Pin 3 for you to hear the receive audio.

Try:

Pin 1) white audio
Pin 2) audio shield this is the wire that is wrapped around the audio wire.
Pin 3) blue wire
Pin 4) Black wire----chassis ground
Pin 5) Red Transmit

Good luck,

Here is the colors.
I'll give it a try! I am thinking its wired wrong and the reason I have talkback.
Hand Held Noise (210-1175) Pinouts Faxback Doc. # 15888
Cancelling Microphone

Pin 1.....Shield/ground (rec)..........Shield/ground (trans)
Pin 2.....Connected to Pin 4 (rec).....Floating free (trans)
Pin 3.....Floating free (rec)..........Grounded to Pin 1 (trans)
Pin 4.....Connected to Pin 2 (rec).....Audio "hot" (trans)
Pin 5.....Grounded to Pin 1 (rec)......Floating free (trans)

1 = GND/GND
2 = CONNECT PIN 4/FREE
3 = FREE/GND 1
4 = CONNECT 2/AUDIO "HOT"
5 = GND 1/FREE

1 = NO COLOR LISTED
2 = BLUE
3 = RED
4 = WHITE
5 = BLACK

[dasquishman]

Did wire test...mic still same. So maybe it is wired right. I just stabbing at things could be my issue.

I hooked blue to pin 3 and no change at all.

Mic works, always did. just want to double check the connections thanks Rick

[TheCBDoctor]

Humm don't know if this is right. Mic I have here is wired.
Pin 1)White
pin2)Black&Ground
Pin3)Nothing
Pin4)Tied to pin 2
Pin5)Red

Any help be appreciated greatly!

I don't know what the color code is for your Mic, but you will need the receive wire to go to Pin 3 for you to hear the receive audio.

Try:

Pin 1) white audio
Pin 2) audio shield this is the wire that is wrapped around the audio wire.
Pin 3) blue wire
Pin 4) Black wire----chassis ground
Pin 5) Red Transmit

Good luck,

Here is the colors.
I'll give it a try! I am thinking its wired wrong and the reason I have talkback.
Hand Held Noise (210-1175) Pinouts Faxback Doc. # 15888
Cancelling Microphone

Pin 1.....Shield/ground (rec)..........Shield/ground (trans)
Pin 2.....Connected to Pin 4 (rec).....Floating free (trans)
Pin 3.....Floating free (rec)..........Grounded to Pin 1 (trans)
Pin 4.....Connected to Pin 2 (rec).....Audio "hot" (trans)
Pin 5.....Grounded to Pin 1 (rec)......Floating free (trans)

1 = GND/GND
2 = CONNECT PIN 4/FREE
3 = FREE/GND 1
4 = CONNECT 2/AUDIO "HOT"
5 = GND 1/FREE

1 = NO COLOR LISTED
2 = BLUE
3 = RED
4 = WHITE
5 = BLACK

Hi,

Your Mic is wired incorrectly. That is why you can not hear your receive audio and the radio has unwanted talk-back. The Mic may have always worked but not on a Uniden-Cobra 5 pin radio. You need more than 4 wires to operate without buzzing or squeals. Pin 2 and 4 should not be tied together. They are both grounds but at different AC potentials.


Pin 1 is audio
Pin 2 is audio ground
Pin 3 is for receive audio......that is why you can not hear the receive audio. There is nothing connected to it.
Pin 4 is chassis ground and is used to switch between Tx and Rx
Pin 5 is for transmit.

Get the proper MIc and the radio should work. I can't believe the tech you brought your radio to did not pick up on that problem.

Respectfully,

Rick

[crazydiamond]

I don't know if this will help you or not but i have a 4 wire desk mic (Syncron MB+4 RB) wired up for my 2000 and it's always worked great for being a 4 wire mic. You may be able to use this pinout to troubel shoot yours wiring.

The pinout for the syncron is

Purple is audio
shield is ground
black is TX
red is RX

Wired for my 2000 is

1 black-TX
2 shield-common
3 red-RX
4 n/c
5 purple-audio

[Night Crawler]

I know the blue wire is for the Noise Cancelling part of the mic. Just figured I'd add that in.

How does the blue wire make the microphone noise cancelling?

[dasquishman]

Thats just what I was told somewhere else. It may be right it may be wrong. I dunno.

[Night Crawler]

It's wrong.