CS800 Using External Speaker - UPDATE
Reply-To: CS800DMR@yahoogroups.com
We have been testing a variety of scenarios and researching the circuitry on the CS800 since the last post. Here is the latest information:
The audio output is rated to handle between 2 and 16 ohms, and is supposed to be able to handle a dead short. The part number for the audio amplifier is TDA2003 in case anyone is interested in doing additional research. We do not suggest experimenting on your radio - but instead we are providing this to assure folks that we will not currently be refusing warranty repair or replacement if the audio output is compromised.
We have tried to break a couple of radios by using a variety of speakers with a range of impedance values, but we have yet to recreate the problem. Our manufacturer is also investigating the problem, and we are exchanging information often.
We have heard that some folks are using an external speaker with no problems noted. While there is probably no need to disconnect existing speakers that are working, we are leaning toward the conservative view until we know more. The purpose behind our current recommendation is to avoid any more damaged radios until we can determine a specific cause. It may have nothing to do with an external speaker, but right now that is the only item in common.
I will post more information as soon as I can once I have it.
Thank you
Posted by: Chris Edwards
Blog Connect Systems Inc DMR
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