Mic wiring diagram

Go to www.cbtricks.com go to radios and schematics then go to C look for Cobra look for 148 then from there get the mike wiring diagram and you should be in business.

Try other mics what happen to me was the wire came lose and hit pin 6 which is power pin it may just have burnt the wire in mic plug

Do you have talkback installed? It my be too loud and causing feed back. Back the mic gain down if so.

Could also be improper mic wiring. If you use a mic that is wired for a different radio, it could just cause a hum, buzz or squeal.

Another thing that can cause a hum, buzz or squeal is a faulty volume and or squelch knob depending on the radio.

• Turn down or disable talk back.
• If you cannot turn off or disable talk back, lower mic gain.
• Try a different mic that you know is wired for cobra.
• Play with volume and squelch knobs while TX and see if it stops at all. If it does replace knob.
  

Your problem is with the mic, probably it's not working anymore or maybe it's been displaced or wiring problem. It's better for you to get it repaired from a mobile repairing shop. You might make mistakes if you don't have enough idea with it. They'll replace the mic and the problem will be fixed. Good luck Thank you for using FixYa.

sounds like a bad mic....At the 5 pin end u will see a small screw take out that screw and slide the pin cover back and you will see the 5 wires going to the pins my bet 1 or more of those ends are broken all you ned is re sod. them and all will be good .....I buy alot of broken mics and all i need do is fix the wires easy fix .....

try http://www.cbtricks.com/
they have mic wireing diagrams

I am guessing that if you have tried all of that and it is not working then maybe it just shorted out. Try wriggling it around to see if it goes in and out. If so then there is your problem. Shorts in wiring are tricky to fix but i would suggest just getting a new device.

yes try going to raidio shack and asking if they could fix it

Check The Microphone Connections In the Plug On Mic wire could be off Or try another Mic. go to www.cbtricks.com look under cobra 89gtl or cobra 1000gtl both have the same board in them.

Same as Omega
#1 Mic Audio
#2 Receive
#3 Transmit
#4 Up/Down for channels
#5 Ground/Shield
#6 13 volt