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I have many base Radio CM360 have problem in sound no sound but have power i checked in speaker it is good but i need the layout for this model because i have 50 radio have the same model and always have problem thanks

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  • Two-Way Radios Master
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Before getting into the radio, I would check the following: If you are using hand mics, or a desk top mic, have you tried unplugging the mic and seeing if your sound returns? It could be a bad mic, mic cord or damaged mic connector.

Another thing to check would be the antenna connections and continuity. It is possible you are simply not receiving.

Posted on Dec 06, 2008

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My walkie talkie motorola em1000 have buzzing sound when another walkie is talking. and have buzzing sound when pressing the button.


Just a few thoughts: It is possible you have a bad (blown) speaker on the buzzing radio or the radio has another problem.

A few things you might try include: 1) Cleaning your battery contacts, 2) trade batteries with the known good unit and see if the problem is solved, if so replace the battery, 3) check the mic and speaker holes on both units to be certain they are free of debris and/or stickers covering the holes. 4) if none of these solve the problem, then your radio likely needs retired/replaced.

Best regards.

Dec 30, 2013 | Motorola Walkie Talkie 2-Way Radio

1 Answer

Sound volume is very low in one of the units. battery power shows three bars.


You do not mention how many units you are using, so first if you have only two radios, check the mic hole on the 'good' radio to see if it is clogged with dirt or debris. On the radio with poor volume, try the volume knob at different settings. Example: turn it up to full volume then incrementally back it off a quarter turn to see if you find a 'sweet spot'. The volume potentiometer is a common failure part on this model. The other issue you could be having is bad speaker. If this is the case, the radio would need to be repaired by a trained service technician. (Flat rate repair on this unit can usually be found for around $69) Lastly, you might check your programming to see if you have something set incorrectly, or if you might be on a nearby frequency instead of exactly the same. For your convenience here is a link to the manual: http://www.giantintl.com/RadioPDFs/manuals/T7400.pdf

Best regards.

May 25, 2011 | Motorola Talkabout T7200 (22 Channels)...

1 Answer

My XU2100 XTN series 2 Way radio is not working. Not receiving or sending transmissions to the other two radios. It is fully charged. It does not make an audible "beep" when you turn it on. ...


Your radio is likely in need of repair. Flat rate repair for this model usually runs around $69. The fact it does not give you the initialization beep indicates it is more than a frequency problem. Then coupled with you do not have transmit or receive, this sounds like you have more of a problem than a bad speaker.

A few things to check before sending it for repair would be:
1) Swap the battery with a known good unit to see if your battery is bad/low and doesn't have enough power to function the radio fully.
2) Check your frequency and code to see if it matches your other units. This is in the upper right corner of the screen shortly after turning the radio on.
3) Check your mic opening in the grill of the radio to be certain it is not covered or free from debris.

If these any of these three items do not solve the problem, you should send your radio for repair.

Best regards.

Nov 12, 2010 | Motorola XTN UHF Two-Way Radio Series

2 Answers

I have a motorola AAM25KKD9AA2AN radio. When I key the microphone the radio powers off and when I release the microophone it powers back on. If I remove the antenna, it does not do this.


Sounds like a power problem. Check your wiring and battery connections. Or if using this radio as a base station with a power supply, check your wiring and the power supply. You are likely not getting enough power to operate the radio.

By keying the mic without an antenna connected you are creating high VSWR which is hard on the radio. It reflects power back into the radio and pounds the power amplifier. The reason the radio is staying on is likely it takes less power without the antenna connected. While examining the radio, double check your antenna connections and coax.

Best regards.

Jun 03, 2010 | Two-Way Radios

2 Answers

Sends transmission okay but, even with volume set high it receives faintly.


You have one of three problems:

1) You are using the radio with another model of radio which is set to wideband channel spacing. (The TalkAbout is narrowband.)

2) You have a radio with a problem. (bad speaker, or plugged speaker grill possibly, or an internal issue)

3) The transmitting radio has a problem, or has debris or something covering the mic hole.

The only way to narrow down the problem is to have a third known good radio in the mix. This will let you know which radio is problematic. The TalkAbout models are for the most part non-repairable (other than the TalkAbout Distance models and the T7200 and T7400.)

Nov 07, 2009 | Motorola Talkabout T6220 (14 Channels)...

1 Answer

Having trouble getting sound on my motorola mcs 2000 uhf radio


What kind Motorola radio is it? and I assumed that you mean main unit and control head. If you don't see an internal speaker in the control head then you need a external speaker hooks up to the back of it.


radcom907

Mar 14, 2009 | Two-Way Radios

3 Answers

How can I increase the volume of the radio


Check the grill in front of the speaker area for debris or plugged holes. Check the transmitting radio for debris blocking the mic hole. When turning volume up on the radio, do not max out the volume knob, back it off slightly for best sound. If these do not help, your radio is probably malfunctioning and needs replaced.

Jan 03, 2009 | Motorola Talkabout T5100 (14 Channels)...

3 Answers

Troubleshooting gm338


Is the battery Ok?
check the on /off switch.
Check the PCIC chip.
Check the ASFIC chip.
To me it sounds like the on.off switch is faulty

Apr 17, 2008 | Two-Way Radios

2 Answers

Speaker Hook Up


Hi, Most if not all external speakers for 2way radios just uses two wires to 2 pins going to a mono baby phone plug. There are some models/versions that uses proprietary connector but very seldom. The connection is similar to a mono earphone except of course that instead of an earpiece, it uses a speaker/enclosure. Hope this be of some help/information. Post back should you need additional information and pls include brand/model of the radio. Good luck and kind regards.

Sep 29, 2007 | Two-Way Radios

1 Answer

Maxon MCB 10 A


I'm not sure about your particular model but many CB radios use the microphone push-to-talk switch to kill the speaker while the radio is transmitting. If you don't have the correct microphone or if the cord has a broken wire it can cause the radio to have no sound. Another possibility is that the speaker is bad. There is probably an external speaker jack on the back of the radio. You could try plugging a different speaker or even an earphone in the jack to see if you get sound there.

Mar 07, 2007 | Maxon SP-100G (4 Channels) 2-Way Radio

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