Shure EXP-5 Telephone User Manual


 
Guardian Telecom Inc.
Installation and Operation
Page/Talk Indoor Housing
Page 10
Troubleshooting
Note: If access to the interior of the ExP-1/-5 is required refer to the
appropriate section.
See: Accessing the Interior of
the ExP-1/-5
Station Is Dead But Associated Speaker Is Working
No repair possible, return station for repair.
Station Is Dead And Associated Speaker Is Not Working
See: Warranty and Product
Return
Ensure power is being supplied to the station.
Check the fuse located on the connector board and replace if
necessary. Correct the problem that caused the fuse to fail.
See: Engineering Specifications
for correct fuse rating
Handset Microphone Volume Too Low
Adjust TX level control on circuit board.
Handset Receiver Volume Too Low
Adjust RX level control on circuit board.
Feedback Or Distortion
Adjust sidetone level control on circuit board.
Inspect the line and connections for shorts and grounds.
Sidetone
Adjust sidetone level control on circuit board.
Station Stays On or Off Hook
1. Ensure power is being supplied to the station.
2. Test the proximity switch in the handset receiver cradle by
moving a small, permanent magnet over the area while listening on
the handset for the line to open and close.
3. If the movement of the magnet switches the on/off hook
condition, the magnet in the receiver cartridge of the handset may
be weak – try another handset. It is not necessary to wire in the new
handset to perform this test – if the new handset switches the on/off
hook condition, replace the existing handset with the new unit.
4. If the movement of the magnet does not appear to switch the
on/off hook condition the handset itself may be defective – try
another handset.
5. If these remedies do not correct the problem return the station
for repair.
See: Warranty and Product
Return
Excessive Noise on Line
Verify no other station's handset is off the hook.
Crosstalk
Inspect wire terminations for crossed wire pairs.