Question about Motorola Talkabout T5720 (7 Channels) 2-Way Radio

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Pin out for t5720

Can any one tell me the pin outs of the handsfree jack for Motorola T5720 ? I want to make my own Vox for it. Thanks

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  • warrenjabal Jan 10, 2009

    I have same question. I have an original pair of Motorola Talkabout T5720 two way radios, their NiCad batteries, and even the original manual -- but lost the AC charger that plugs into the base unit. Base unit does not indicate what voltage/polarity is required so I haven't been able to replace the lost transformer. Do you know?

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The Plug is a 2.5 mmm the tip is mic, middle speaker, the end is gnd.

Posted on Jun 19, 2007

  • Anonymous Jun 19, 2007

    I think the mic line handle the mic audio and the ptt at the same time.

  • A. Riehl Apr 23, 2012

    Hey,
    That's the pinout for a standard 2.5mm plug, (2.5mm x 11mm (on most older cell phones). Talkabout plugs are 2.5mm x 13mm (2mm longer), and the pinout is tip=speaker, middle=mic, end=ground.

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2 Answers

Why radio does not work with headset plugged in


Well there are a few possiblilities:
1 - If the headset is not an OEM part then the wiring or jack may not match or the impedances may be mismatched.
2 - When you say doesn't work you need to be more specific.
VOX capable y/n, VOX Working y/n, PTT on head set y/n, etc.
3 - Has the radio phone/mic jacks ever been modified?

Good Luck with the testing

Jun 22, 2014 | Motorola Mag One BPR40 Two Way Radio

1 Answer

We recently purchased the Motorola MS350 radios with headsets. We plugged the headsets in and turned the power on, but are unable to communicate back and forth in handsfree mode. We can switch to PTT and...


The three things which come to mind are:
1) Is the headset the VOX headset intended for the radio model? Sometimes the rings on the plug do not match the internal points of contact if it is not the intended headset. Not all headsets are VOX capable.
2) Is the headset plugged in all the way. (You mentioned plugging in and then turning on. This is good. You must always have the radio turned off when plugging or unplugging an audio device.)
3) Try pressing the PTT on the headset cord one time before switching the dip switch to VOX. (Assuming you have a headset with the small box in the line.)

Lastly, if you continue to have difficulties, contact Motorola at the 800# provided in the user guide. They should be able to assist you.

Best regards.

Sep 23, 2013 | Motorola Ms350r Radio Pack

1 Answer

Handsfree icon on my motorola c118 display,when inserting handsfree its working and i plug out the handsfree the icon is still there.


Hi,

It's a hardware problem. It might be a connector jack problem. Visit mobile repair center to get it resolved.

May 17, 2011 | Motorola Mobility C118 Cellular Phone

1 Answer

Hi I have the T5622 talkabout with a PTT headset. I can transmit OK but I am not receiving anything other than a ''click'' when the other person transmits. I have tested the headset and I am able to recive...


Here a few thoughts which come to mind.
1. You do not mention whether the radios communicate with the headset no on the radio. I will at this point, assume they do.
2. Be certain to have the radio SHUT OFF when plugging in the audio device.
3. Check your VOX settings. It could be your radio is going into VOX mode.
4. Only use the PTT button on the headset. Do not press the PTT on the radio at any time while using the headset.
5. Check that you have CALL TONES shut off.
6. Lastly, if nothing else works, go back to a basic mode, and set both radios where there are no special features turned on. ie turn off CODE, Qt Filter, VOX, Call Tones, etc.
Here is a link to the manual: http://www.giantintl.com/RadioPDFs/Outdated%20Manuals/T56XX_57XX_User_Manual_E.pdf

Best regards.

Feb 05, 2010 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

I have a TLKR-T3 and a T5720 radios. can they communicate? Thanks


No, they have no frequencies in common. The TLKR-T3 uses the PMR446 frequencies common in Europe. The T5720 uses FRS freqeuncies common in the USA.

Dec 19, 2008 | Motorola Talkabout T5720 (7 Channels)...

3 Answers

Motorola Talkabout T5720 circuit schematic


We are a M dealer and the schematics for the TalkAbout line were never released to the dealer channel.

Jul 13, 2008 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Handsfree activation on its own


Cause ; due to frequent insertion and pulling out of the headfone jack


SOLUTIONS

Temporary solution
its mostly pecause your handsfree pin has got loseened due to your constant pulling out and in of the headfone jack, dont worry just reinsert the jack firmly and with a bit of force repull it out, that should bring the pin in its normal condition.

Permanent solution
the piece needs to be reopened and headphone jack just refixed to original state.

Apr 01, 2008 | Nokia N72 Cellular Phone

1 Answer

Earbuds


If you are using vox (voice activated transmit) go into the menu and make sure you don't have the VOX setting too high. You should be able to put the headset on... hit the "push to talk" button on the radio and transmit you audio. Turn the other radio on and make sure the radio is "keying" (tx with no auio) then make sure there is audio. If you don't have audio but the radio is transmitting.. you might have the wrong type of plug on your headset for the audio..... there are 2 plugs... 1 for transmit audio....1 for recieve audio. It could be the wrong type of plug for the jack in the radio. Regardless.. the way the headset works is either you push the "push to talk button" onj the radio OR you use the VOX function... with the vox function you just have to talk into the mic to transmit. This is what your headset is designed for. You will have to go into the menu and set up the radio for VOX. If you still have problems follow my directions at the top of this page ( check mic jack and stuff) I think you just have to set the radio up for VOX operation and set the VOX setting. You should be able to push the push to talk button and talk through the mic on the headset. If you don't get any audio that way there is a problem and you should check the jack and plug on the headset.

Aug 25, 2007 | Motorola Talkabout T5720 (7 Channels)...

1 Answer

Communication problem with my brend new T5720.


I have seen some problems with new out of box radios, one of them is out of frequency and recieve with noise and works with low range coverage. I can not clarify what you mean with feed back, check if you set in low volume if the radio works fine. That will tell you that the speaker or the Synth circuitry has a problem. Neto.

Dec 06, 2006 | Motorola Talkabout T5720 (7 Channels)...

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