Firecom 3000C Installation & Operation Manual page 30

A D V A N C E D T R O U B L E S H O O T I N G
28.
5. If there is audio from the radio's speaker, check the connections to pins 6 & 7 on
the Radio Interface Port on the back of the intercom unit.
6. Try swapping the intercom unit with a known good one (if one is available). If the
problem persists, the problem is in the Radio or the Mobile Radio Interface
wiring.
7. If no fault can be found, then the fault must lie in the Intercom Unit. Contact
Firecom for a Return Authorization to return the Intercom Unit for repair.
C) THERE IS NO SOUND IN THE HEADSET FROM THE INTERCOM, BUT
THE RADIO IS OKAY
1. Check the headset location for faulty connections or components. See
"Troubleshooting a Headset Location" (Page 25).
2. If the headset location checks good, the fault must lie in the Intercom Unit.
Contact Firecom for a Return Authorization to return the Intercom Unit for
repair.
D) THERE IS SOUND IN ONLY ONE EAR
1. Check to see if the headset is a model UH-10S headset. The UH-10S has 1 "slotted"
ear dome without a speaker in it. This is normal operation for a UH-10S.
2. The headset is faulty. Contact Firecom for a Return Authorization to return the
headset for repair.
E) YOU CAN HEAR OTHERS ON THE INTERCOM, BUT THEY CANNOT
HEAR YOU
1. If the headset is an intercom-only headset, be sure that the black PTT button is
fully depressed when trying to talk on the intercom.
2. If the headset is an intercom-only headset with a yellow PTT, press and release the
PTT and test again.
3. Check the headset location for faulty connections or components. See
"Troubleshooting a Headset Location" (Page 25).
4. The headset is faulty. Contact Firecom for a Return Authorization to return the
headset for repair.