[Premium-Rx] Redifon R500 stuck in mute

[Chuck Urmson]

Hi Alan,

You need a jumper between pins 17&18 of PL1 to unmute the receiver. 
There are also other reasons why it won't unmute but that is the first 
thing to do...

Regards,
Chuck



Royce, Alan (AS) wrote:
> Does any one know how to key the Redifon R500 key pad?
> This receiver is in mute and I have no ops or service manual.
> Thanks
> Al 
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