25
Rev.1.25
Volume too low
(No sound)
Is the volume of the [OWN] microphone
turned down?
>> With the [OWN] selection indicator lit, press
the
volume button to increase the volume.
Is the receiver set up correctly?
>> Check the settings.
No sound when talking into the
microphone
Is any external device connected to the external
input terminal or microphone input terminal?
>> Connection of an external device or external
microphone, even if not powered up, disables
sound transmission from the Teacher mic’s
microphone.
Unplug the connected devices
No sound
Does the [OWN] selection indicator blink?
>> Press the [PWR/MUTE] button to cancel
muting.
No sound from an external microphone
Is the external microphone connected to the
external input terminal?
>> Connect the external microphone to the
microphone input terminal.
Loud noise
Is an external device (for example, a portable CD
player) connected to the microphone input
terminal?
>> Connect the external device (for example, a
portable CD player) to the external input terminal.
No operation possible
(Muting, volume adjustment, etc.)
Are the [OWN], [OTHER] and [LINE] selection
indicators all lit?
>> Press the [PWR/MUTE] button for 2 seconds
or more to turn off the microphone, and then turn
the power on again
Does not charge
(Charge indicator is off)
• Is a battery installed?
>> Install a battery.
• Is the micro-USB plug of the charger inserted
all the way into the DC input terminal?
>> Confirm the connection.
Does not charge
(The charge indicator blinking, but goes
solid after a few minutes)
Are you trying to charge a battery that has just
been charged?
>> The battery is already fully charged. Remove
the charger from the microphone, and use the
microphone with the battery
Does not charge
(Charge indicator is blinking)
Is the battery extremely hot?
>> Disconnect the charger once and allow the
battery to cool off before reconnecting.
