UHF Wireless microphone system
12
TROUBLESHOOTING
If the unit fails to operate normally, check the following points to determine whether
the fault can be corrected by the simple measures suggested. If it cannot be corrected,
or if the fault is not listed in the PROBLEM column, disconnect the power cord and
contact your authorized YMIOO dealer or service center for help.
PROBLEM
POSSIBLE CAUSE
No operation indication
Transmitter’s batteries are exhausted or DC in is not
connected well.
No RF signal
Transmitter and receiver are not at the same channel
Transmitter is out of range
RF signal available, no
audio signal, ”MUTE”
appears on the display
panel
Transmitter is muted(“MUTE”)
Receiver’s squelch threshold is adjusted too high
Transmitter doesn’t transmit a pilot tone
Audio signal has a high
level of background noise
Transmitter sensitivity is adjusted too low
Receiver’s AF output level is adjusted too low
Audio signal is distorted
Transmitter sensitivity is adjusted too high
Receiver’s AF output level is adjusted too high
The use of
short-distance,
Signal
instability
Transmitter set at a low-power
Squelch is too high
Receiver antenna set improper
Surrounded by strong electromagnetic interference
