Panasonic KX-TD500 User Manual page 441

6
Problem
Nothing is heard in the
hands-free mode.
The unit does not ring.
The display flashes the
following message:
THU JAN01 12:00A
Appendix
Probable Cause
The "Headset" mode is
selected.
• The CO number is not
programmed.
• The Ringer Volume is set to
"OFF."
The system internal clock
does not work properly.
Possible Solution
When the headset is not used,
set the mode to "Handset."
Refer to "Handset/Headset
Selection" in Station
Programming (Section 2), or
"Initial Setting" (Section 1.1).
• For programming CO
numbers, refer to the
Installation Manual.
• Increase the Ringer Volume.
Refer to "Initial Setting"
(Section 1.1).
Consult with an authorized
Panasonic Factory Service
Center.
Appendix
6-17