CDM1550LS+ speaker problem

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BlueLineEnt
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What radios do you own?: MCS2k, Spectra, HT1250, HT1000

CDM1550LS+ speaker problem

Post by BlueLineEnt »

Quick question here, just looking for a definitive answer. I have a CDM1550LS+ that is all programmed, but was taken out of the cruiser from another town and donated. The programming is all good, but the speaker is not sounding, not even the power up tone. My question is do I need some sort of jumper on the accessory connector to get the face speaker to work?

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486dx4
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Re: CDM1550LS+ speaker problem

Post by 486dx4 »

I had a CDM1550 that had a problem like that and the issue was the the audio amplifier was blown in the radio. TX was fine but no receive audio came from the speaker when receiving an on channel signal. The CDM mobiles need no jumper like the Maxtrac/Radius to get the speaker to work. I hope that is not the issue but maybe the speaker leads were grounded somehow causing the amp to blow out.
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wavetar
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Re: CDM1550LS+ speaker problem

Post by wavetar »

Another possibility was the internal speaker was simply unplugged if the unit was installed with an external speaker. Some people like to do that for some reason...worth a look inside to check. It could even be a defective internal speaker. Do you have an external one to try?

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BlueLineEnt
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Posts: 43
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What radios do you own?: MCS2k, Spectra, HT1250, HT1000

Re: CDM1550LS+ speaker problem

Post by BlueLineEnt »

Thank you guys, I opened it up and the speaker was indeed unplugged!! Thanks again!
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escomm
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Re: CDM1550LS+ speaker problem

Post by escomm »

wavetar wrote:Some people like to do that for some reason...
It would be because the CDM series still unmutes the internal speaker, even if an external speaker is hooked up.
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wavetar
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Re: CDM1550LS+ speaker problem

Post by wavetar »

escomm wrote:
wavetar wrote:Some people like to do that for some reason...
It would be because the CDM series still unmutes the internal speaker, even if an external speaker is hooked up.
Oh I realize that, it's just 99% of the time, I would think you'd want both to work...sitting in a vehicle it's hard to tell which one you're hearing unless one is right next to your ear, so why not have both working? Unless you're trying to run a 2-ohm external speaker & are afraid of over-driving the audio amplifier or something.
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