Question about Midland 77-250CXL 40-Channels Base CB Radio
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Posted on Jan 02, 2017
SOURCE: midland 75-785
Given the fact that when you key up the mic you should not hear any thing because the receiver section is "turned off" (no antenna and the speaker is muted). This would seem to indicate that the switch the headset controls which allow the change over from RX to Tx is bad or that the circuit in the CB unit which the head set plugs into is having a problem. Do you hear the same flutter without the headset? Try to get another headset or test one out just to see if the problem is eliminated by using a known good headset.
Posted on Sep 04, 2007
SOURCE: midland cb model 13-895
Hi Frank, It sounds to me like you may have a bad dectector diode. Other possibilities are cold solder joints in the stand up boards in the IF section. Good Luck
Posted on Jan 08, 2008
This should be a typical Midland pinout. If you are using a generic 4 pin mic that is wired to cobra/Uniden, all you have to do is switch pin 1 & 2, then 3 & 4.
Not all mics are color coded the same with their wires.
Posted on Oct 06, 2008
Make sure your batteries are good,if you are useing batteries,even if not.Pull out the antenna as far as it will come,now try it. ...hope this helps you some....
Posted on Mar 01, 2010
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