Marine Electronics Forum

Icom m504 not working

Old 10-06-2011, 11:48 AM
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Default Icom m504 not working

I left the unit running over the weekend and it was working fine.Now it will not transmit or receive? I installed another radio to the original antenna and it works fine -Is it time for it to go to Icom service or is there anything else I can check
Old 10-06-2011, 12:06 PM
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I have a M422 and did the same. I send it under warranty and they change the ceramic filter. Call them
Old 10-06-2011, 03:26 PM
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Short of jiggling wires/connectors and banging on the radio, there's not much else you can do. A radio reset can only be done with software but I doubt that would help anyway. It could be any number of hardware failures but not the ceramic filter. That is for the receive circuit only. Hopefully, it's still under warranty.


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