Toa TS-910 Series Manual - Manual (Page 35)

35
Symptom Cause and Points to Check Remedy
Cannot operate the
Talk key.
Unit address numbers outside range of
001 – 192.
Set the unit address number within
the range of 001 – 192. (Refer to the
separate Installation manual.)
They are not connected properly. Check all connections. (Refer to the
separate Installation manual.)
Priority speech is in progress. Operate the key after the priority speech
is completed.
Indicator on the
microphone goes out
during speech.
Mic-Off function set to ON. Disable the Mic-Off function if a long
pause is made during speech.
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.
10.3. Central Unit TS-910
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 the separate Installation
manual.)
10.4. Battery Charger BC-900
Symptom Cause and Points to Check Remedy
Power indicator
(green) does not light
even if the power
switch is turned ON.
AC plug is not inserted into the wall AC
outlet.
Insert the AC plug to the wall AC outlet.
Fuse has blown. The fuse must be replaced.
For replacement, consult your TOA
dealer.
Charging status
indicator (red) does
not light even if the
lithium-ion battery
is inserted into its
receptacle.
Lithium-ion battery not correctly inserted
into its receptacle.
Insert the lithium ion battery fully into its
receptacle.
Charging terminals are dirty. Wipe the terminals with a dry cotton
swab to clean them.
Short battery recharge
duration.
Deterioration of the lithium-ion battery. Replace with a brand-new BP-900
Lithium-Ion Battery.