PDWM2700
TWO CHANNELS
VHF WIRELESS MICROPHONE
TRANSMITTER
USER'S MANUAL
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HANDHELD MICROPHONE
TROUBLE SHOOTING
Please read and check the following points before asking for service.
The wireless microphone fails fo work:
--Check the microphone battery by switching the microphone ON. If power LED
indicator lights red, replace the battery.
--Check the POWER indicator on the receiver unit is ON. If not, check the
mains power adapter is firmly plugged into a working mains socket.
--Check the amplifier system is ON and the microphone controls set correctly.
--Check the radio microphone jack lead is firmly connected into the output
socket on the rear panel of the receiver unit and into the MIC input socket on
your amplifier.
The working range is limited:
--Check the microphone battery condition(see above)
--Check the aerials are fully extended. Adjust the position of the aerials to
achieve the best reception.
Feedback is heard:
1. Unscrew the battery cover at the end of the microphone. Install the
provided 9 volt battery and then close the cover. Make sure to connect
with the correct polarity.
--Check if the microphone is too close to or in front of the loudspeaker.
Check the settings of the microphone controls on the amplifier. Adjust volume
and tone to get the beat sound without any trace of feedback.
2. Move power switch to ON position. Power LED indicator will flash
once and then go off. This indicates correct operation. If power LED
indicator lights red, this indicates the battery is Iow. Please replace
with new battery.
3. Move power switch to center to mute the microphone.
4. If the microphone is not going to be used for a long period of time,
please take out the battery to prevent damage by battery leakage.
2
7
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SPECIFICATIONS
BELT PACK TRANSMITTER
A. Overall system
1. Oscillation mode:
2. Carrier Frequency Range
3. Frequency Stability:
4. Max Deviation:
Quartz controlled
VHF160~270MHz
+/-0.005%
BATTERYCOVER
9V BATTERY
MIC IN
+/-56KHz with level limiting
>110dB
5. Dynamic Range:
6. S/N Ratio:
POWER INDICATOR
POWER SWITCH
>100dB
7. T. H. D:
<0.5dB
8. Frequency Response
9. Operating Range:
60Hz-18KHz
30M
OPEN
CLOSE
B. Receiver
1. Sensitivity:
6dB V at SIN >70dB
>60dB
2. Image Rejection:
3. Stability:
>80dB
4. Audio output:
5. Power supply:
-12db/600ohm unbalanced
12V DC/500mA
LAVALIER MIC
HEADSET MIC
C. Transmitter
1. Mike capsule:
Handheld: dynamic
Headset or lavalier MIC: condenser
Built-in housing(Handheld MIC)
external(Belt pack)
<10mW
1. Open the battery cover to install a 9V battery as per correct
polarities.
2. Antenna:
2.Move power switch to ON position. Power LED indicator will
flash once and then go off. This indicates correct operation. If
power LED indicator lights red, this indicates the battery is
Iow. Please replace with new battery.
3. RF Output:
4. Spurious:
<-40dBC
5. Power Supply:
9V battery
3. Plug the 3.5mm connector of headset mic to MIC in jack of
transmitter.
4. Before operation, please confirm that the frequency of
transmitter is same as the frequency of receiver.
5. When speak to the MIC, please keep 2-3cm distance between
mouth and mic head.
6. If the system will not be used for a long time, please take out
battery from transmitter to avoid damage by battery leakage.
6
3
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RECEIVER
INSTALLATION
To connect the wireless microphone to your amplifier system:
Refer to the installation diagram below.
Using the supplied 6.35mm to 6.35mm lead, connect from the AF
OUT jack of the receiver to the MIC INPUT socket on your amplifier.
Plug one end of the mains power adapter into a suitable mains socket.
Plug the other end of the adapter into receiver DC 12V input socket.
CHA SIGNAL
CHB SIGNAL
1. Switch on the wireless microphone receiver unit by pressing the POWER
switch and the POWER light will illuminate to show the receiver unit is
working.
2. Fully extend the aerials to the maximum height.
3. Switch ON the transmitter. Power LED indicator will flash once then go off.
When the microphone is ON, the receiver RF indicator will light.
4. Adjust the volume and tone levels of your amplifier system as well as the
receiver & the body pack as required.
5. When the transmitter is not going to be used for a long period of time,
please take out the battery from transmitter.
Note that switching the microphone on and off can cause interference that
will be heard if the microphone volume level of the amplifier system is still
set high
4
5
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