2
TROUBLESHOOTING
PROBLEM INDICATOR SOLUTION
No sound Red transmitter indicator is not flas Slide transmitter POWER ON/OFF
switc to ON position. Make sure
battery is inserted properly, observing
battery (+ / -). If battery is inserted
properly, replace wit fres battery.
No sound Red transmitter indicator is flas . Slide transmitter MUTE/ON switc to
ON position.
No sound Red receiver indicator POWER lig t
off.
Make sure AC adapter is securely
plugged into electrical outlet and into
DC input connector.
Make sure AC electrical outlet works
and supplies proper voltage.
No sound Receiver signal indicators A/B lig ts
glowing.
Turn up receiver volume control.
Confirm t at t e output connections
from t e receiver to t e external
equipment are secure.
No sound Receiver signal indicators A/B lig ts
off. Transmitter and receiver POWER
lig t glowing.
Confirm transmitters and receivers
frequencies matc . Move transmitter
closer to receiver.
Sound level differs from level of
a cabled instrument.
Receiver signal indicators A/B lig ts
glowing.
Adjust transmitter gain level to
compessary.
Adjust receiver volume as necessary.
Distortion level increases
gradually
Receiver signal indicators A/B lig ts
and transmitter LOW BATTERY lig t
glowing
Replace transmitter battery
Bursts of noise or ot er audible
radio signals present.
Signal indicators A/B/ lig ts on. Identify potential sources of
interferences (ot er RF-sources) and
turn off, remove or use a wireless
system operating on a different
frequency.
Momentary loss of sound as
transmitter is moved around
performing area.
Receiver signal indicator A/B lig ts of
w en sound is lost
Reposition receiver and perform walk-
t roug test again. If audio dropouts
persist, mark “dead” spots and avoid
t em during performance.
TECHNICAL SPECIFICATION
WM511 WM512H WM512C WM512
Ref.nr: 179.229 179.220 179.223 179.226
Frequency range 200.175M z 200.175M z
201.400M z
200.175M z
201.400M z
200.175M z
201.400M z
Frequency
response 40Hz-20kHz 40Hz-20kHz 40Hz-20kHz 40Hz-20kHz
Signal/Noise ratio > 85dB > 85dB > 85dB > 85dB
Class 2 2 2 2
Rated voltage AC220~240V 50Hz AC220~240V 50Hz AC220~240V 50Hz AC220~240V 50Hz
Adapter 13-15V DC / 500mA 13-15V DC / 500mA 13-15V DC / 500mA 13-15V DC / 500mA
Dimensions 210 x 145 x 42 mm 210 x 145 x 42 mm 210 x 145 x 42 mm 210 x 145 x 42 mm
Bodypack PT-218 Handheld HT-218
Frequency range 201.400M z /
200.175M z 200.175M z
Battery 2x 1.5V AA Battery 2x 1.5V AA Battery
Signal/Noise ratio >10dBm >10dBm
Class 2 2
Dimensions 100 x 65 x 30 mm 238 x 50 x 50 mm
Class II product for use in Frequency band 195.000-201.900MHz.
The specifications a e typical. The actual values can slightly change f om one unit to the othe . Specifications can be changed
without p io notice.