16
17
PORTABLE WIRELESS PA SYSTEM PORTABLE WIRELESS PA SYSTEM
No Sound From
Speaker
Distortion or Unwanted
Noise Bursts
Sound Dropouts
PROBLEM POSSIBLE CAUSE
Master or receiver volume
turned down
Transmitter or receiver
switch is turned off
Headset or lavalier
microphone is not plugged
into bodypack transmitter
Interference
Noise Indicator is lit
(MRM-70/72 receiver)
(MRM-70B/72B receiver)
Out of operating range
Obstructions between the
receiver and transmitter
Weak Transmitter Battery
Interference
Transmitter battery is
low or no battery inside
Receiver and transmitter
have different frequencies
Turn transmitter or receiver
switch on
Plug headset or lavalier
microphone into bodypack
transmitter
SOLUTION
Remove nearby sources
of RF interference
(computers, amplifiers,
karaoke machines, digital
effects, CD players, etc)
Adjust “Sensitivity” on
MRM-70/70B/72/72B
receiver.
Move transmitter closer
to receiver
Remove obstructions or
reposition
Replace Transmitter Battery
Change Receiver &
Transmitter frequencies
Adjust volumes
Replace or insert new
battery
See “Set-up Receiver &
Transmitter Frequencies”
section
Line-of-sight between
receiver & transmitter
See “Set-up Receiver &
Transmitter Frequencies”
section
If problem persists,
change Receiver &
Transmitter frequencies.
See “Set-up Receiver &
Transmitter Frequencies”
section
TROUBLESHOOTING-WIRELESS MICROPHONE SYSTEMS
No Sound or Faint
Sound From Speaker
Power Indicator Not On
Distorted Sound From
Speaker
Weak, Distorted Sound.
Power Indicator Flickers
Excessive Hum or Noise
Shortened Battery Life
Battery CHARGE
Indicator Not Flickering
when plugged into
AC Outlet
Excessive Feedback
PROBLEM
Adjust volume
Turn power switch on
Reduce volume
Turn power switch on
SOLUTION
Plug into AC outlet to
recharge
Use windscreen on
wireless & wired
microphones.
Replace battery and plug
into AC outlet to recharge
Plug into AC outlet to
recharge
Move microphone away
from the speaker
microphone or move
microphone closer to
sound source
Adjust input signals
Reduce volume
Speak closer to the
Use shielded cable
Recharge or replace
battery
Replace battery
Recharge or replace
battery
Recharge or replace
battery
N/A
POSSIBLE CAUSE
Power switch is turned off
Rechargeable Battery is
discharged
Excessive wind noise or
breath “pops”
Rechargeable Battery is
“dead”
Batteries level is low
Microphone too close or
directly in front of the
speaker
sound source (requiring
the volume to be turned
up to compensate)
Input signal too strong
Volume set too high
Microphone too far from
Input Cable not shielded
Old or overused battery
Rechargeable Battery is
“dead”
Battery is not charged
for over 3~4 months
Battery is not charged
for over 3~4 months
Battery is fully charged
(CHARGE indicator is lit)
Volume turned down
Power switch is turned off
Volume set too high
TROUBLESHOOTING-PORTABLE PUBLIC ADDRESS
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
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