52
Symptom
Cause and Points to Check
Remedy
Chime does not sound
when the Priority
speech key is pressed.
Central unit’s rear panel-mounted
Priority Chime volume control is set to
the minimum volume position.
Adjust the volume control to an
appropriate level.
The Priority chime mute switch in the
Chairman unit’s bottom is set to ON.
Set the Priority chime mute switch to
OFF.
Mic-Off function does
not work.
High background noise level generated
by such equipment as air conditioners.
In areas where the background noise
level is high, the Mic-Off function may
not work.
Reposition in a low-noise location or
turn off the Mic-Off function.
Battery can be used
only for a short period
of time.
Not fully charged.
Charging is completed within 5 hours.
Note: Fully charged batteries can be
used for up to 10 hours.
(Refer to p. 35.)
Battery is approaching the end of its life. Use a brand-new battery.
Note:
Battery can be recharged
almost 300 times.
Symptom
Cause and Points to Check
Remedy
Cannot switch ON the
power.
Power cord or DC plug not connected.
Correctly connect the power cord and
DC plug supplied with the Central unit.
(Refer to p. 19.)
Recording cannot
be made to the USB
memory device or
otherwise recording
stops. (TS-820RC
only)
USB memory capacity is insufficient.
When its capacity is insufficient, the
USB memory remaining capacity
warning indicator lights and the USB
memory status indicator extinguishes.
Insert a USB memory device that has
sufficient remaining capacity, then
confirm that the USB memory status
indicator lights green before commencing
recording. (Refer to p. 46.)
USB memory failure. If any failure of the
USB memory device is detected, the
USB memory status indicator lights red.
Insert a different USB memory device,
then confirm that the USB memory status
indicator lights green before commencing
recording. (Refer to p. 46.)
Recordings cannot be
made to the internal
memory, or recording
otherwise stops. (TS-
820RC only)
Remaining internal memory capacity is
insufficient. When recording capacity
becomes insufficient, the Internal
memory remaining capacity warning
indicator lights and the Internal memory
status indicator extinguishes.
Delete recorded files from the internal
memory to create sufficient free space
for further recording, then confirm that
the Internal memory status indicator
lights green before commencing
recording. (Refer to p. 47.)
Internal memory failure. If any failure
of the internal memory is detected, the
Internal memory status indicator lights
red.
Reformat the internal memory, then
confirm that the Internal memory
status indicator lights green before
commencing recording.
Note
Formatting the memory causes all
recorded files on it to be deleted.
Therefore, it is highly recommended
that any necessary files be saved to an
external memory device beforehand.
(Refer to p. 49.)
17.2. Central Unit TS-820RC/820
