GM 340 Power

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elmanoduarte
Posts: 60
Joined: Sun Apr 20, 2008 11:35 am

GM 340 Power

Post by elmanoduarte »

Greetings all 8)

Got a problem in a Motorola GM-340 VHF, it doesn´t power UP !!
I know a few tricks for GM-300, in this situation, but looking to the Gm-340 board, not the same at all !
I do no know what have caused this in this radio. Assuming the polarisation + - in the Power cable is the same has for the Gm-300, do not know what to check !
Any help ??? :o

thanks
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Bill_G
Posts: 3087
Joined: Thu Sep 17, 2009 5:00 am

Re: GM 340 Power

Post by Bill_G »

Hello Elmano. The Gm340 is similar to the CDM series in the US. Yes, the power cable is the same. Other people have experienced a no power up problem with this model.

http://batboard.batlabs.com/viewtopic.p ... =cdm+power

http://batboard.batlabs.com/viewtopic.p ... =cdm+power

http://batboard.batlabs.com/viewtopic.p ... =cdm+power

Hope that helps.
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escomm
Queue Moderator
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Joined: Fri Mar 24, 2006 8:24 pm

Re: GM 340 Power

Post by escomm »

Have you checked to see if it's programmed for ignition sense by putting 12V on pin 10?
elmanoduarte
Posts: 60
Joined: Sun Apr 20, 2008 11:35 am

Re: GM 340 Power

Post by elmanoduarte »

Many thanks for your answers 8)

..well, i do not know what is programmed in this radio, and can´t check it, because it doesn´t power UP !
..about connect 12v in 10 pin, can do it, if i know witch one is the 10 ! Can you help me in that ?,,and you mean connect 12v + or - in that pin ?

thanks
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Bill_G
Posts: 3087
Joined: Thu Sep 17, 2009 5:00 am

Re: GM 340 Power

Post by Bill_G »

That would be +12V. This radio is negative ground.

Telex has an excellent diagram of the CDM series accessory plug in section 4.

http://www.telex.com/UserFiles/Download ... CH-009.pdf
Andreas
Posts: 626
Joined: Sun Sep 09, 2001 4:00 pm
What radios do you own?: radios

Re: GM 340 Power

Post by Andreas »

You can have a radio with a corrupted firmware inside.
Try to read the radio.If it works,the firmware should be ok and you should program the radio with a default codeplug from the CPS folder.

Andreas
elmanoduarte
Posts: 60
Joined: Sun Apr 20, 2008 11:35 am

Re: GM 340 Power

Post by elmanoduarte »

yes,,, but how to program the radio, if doesn´t power uP??,,,there's no connection available for the RIB !...you mean after check the 12v + in PIN 10 ?

thanks
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