GM300 problem

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N1lma
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Joined: Sat Jul 27, 2013 5:40 am

GM300 problem

Post by N1lma »

My GM 300 UHF has a problem. When turned on, it beeps normal but the channel indicator is not lit and no push button controls work including the channel up/down buttons. It xmits and receives on channel one fine. Any thoughts?
Jim202
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Joined: Sun Sep 09, 2001 4:00 pm

Re: GM300 problem

Post by Jim202 »

N1lma wrote:My GM 300 UHF has a problem. When turned on, it beeps normal but the channel indicator is not lit and no push button controls work including the channel up/down buttons. It xmits and receives on channel one fine. Any thoughts?



Did you do any programming to it recently?
Norman
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Re: GM300 problem

Post by Norman »

I would try pulling the head off, inspect and reseat the interconnect cables.
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tsunami_australia
Posts: 159
Joined: Tue Aug 26, 2008 2:29 pm
What radios do you own?: too many to list here apparent

Re: GM300 problem

Post by tsunami_australia »

Broken flex? Corrupt codeplug? Rooted display board?
jry
Posts: 482
Joined: Fri Feb 06, 2004 3:14 pm

Re: GM300 problem

Post by jry »

undo the two screws holding the front on and verify display connector is seated and then move onto verifying the voltages and signals on the display PCB.

Those are just push down/crimp connections into the connectors so you may have the power one worked loose.

Not sure I have ever seen a display board go dead like that but there is always a first time
N1lma
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Re: GM300 problem

Post by N1lma »

It was loose display connector! Thanks!!!
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