Central Unit Ts-800; Battery Charger Bc-900 - Toa TS-800 Series Operating Instructions Manual

Symptom
Indicator on the
microphone extinguishes
during speech.
Microphone indicator
flashes.
Chime does not sound
when the Priority Speech
key is pressed.
Mic-Off function does not
work.
Battery can be used only
for a short period of time.

16.2. Central Unit TS-800

Symptom
Cannot switch ON the
power.

16.3. Battery Charger BC-900

Symptom
Power indicator (green)
does not light even if the
power switch is turned
ON.
Charging status indicator
(red) does not light even if
the lithium-ion battery is
inserted into its receptacle.
Short battery recharge
duration.
54
Cause and Points to Check
Mic-Off function set to ON.
Battery voltage has dropped below a
marginal level.
Central unit's rear panel-mounted
Priority Chime volume control is set
to the minimum volume position.
High background noise level
generated by such equipment as air
conditioners.
Not fully charged.
Battery is approaching the end of its
life.
Cause and Points to Check
Power cord or DC plug not connected.
Cause and Points to Check
AC plug is not inserted into the wall
AC outlet.
Fuse has blown.
Is the lithium-ion battery correctly
inserted into its receptacle?
Charging terminals are dirty.
Deterioration of the lithium-ion
battery.
Remedy
Disable the Mic-Off function if a long
pause is made during speech.
Replace the battery with a fully charged
one.
Adjust the volume control to an
appropriate level.
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.
Charging is completed within 5 hours.
Note: Fully charged batteries can be
used for up to 10 hours.
(Refer to p. 40.)
Use a brand-new battery.
Note: Battery can be recharged almost
300 times.
Remedy
Correctly connect the power cord and
DC plug supplied with the Central unit.
(Refer to p. 22.)
Remedy
Insert the AC plug to the wall AC outlet.
The fuse must be replaced.
For replacement, consult your TOA
dealer.
Insert the lithium ion battery fully into its
receptacle.
Wipe the terminals with a dry cotton
swab to clean them.
Replace with a brand-new BP-900
Lithium-Ion Battery.