DONNER DWMU-4 UHF Wireless Microphone System User Manual

USER MANUAL
DWMU-4 UHF WIRELESS MICROPHONE SYSTEM

Welcome to DONNER
We are very grateful to have you purchasing our product. Please take a few minutes to read the instructions for operating this product, which will show you how to use it and explain the function and operation of the device, ensuring a trouble-free installation. Please keep these operating instructions properly for reference in the future.
FCC Statement Changes or modifications not expressly approved by the party responsde for compliance could void the users’ authority to operate the equipment. This equipment has been tested and found to be campy with the limes for a Class B digital device. pursuant to Par115 of the FCC Rules. These links are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and. 4 not installed and used in accordance with the instructions. may cause harmful interference to radio community-sucns However. there is no guarantee Mat interference wt not occur in a particular installation. If this equipment does cause harm.il interference to radio or television reception. which can be determined by turning the equipment off and on. the user is encouraged to try to correct the interference by one or more of the following measures:
— Reorient or relocate the receiving antenna
— Increase the separation between the equipment and receiver
— Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
— Consult the dealer or an experienced radio/TV technician for help This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions Mires device may not cause harmful interference. and (2) this device must accept any interference received. including interference that may cause undesired operation.
WARNING:

• TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE.
• TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, AND ANNOYING INTERFERENCE, PLEASE USE ONLY THE RECOMMENDED ACCESSORIES FOR THE UNINTERRUPTED SERVICE OF THIS DEVICE!
• DESIGN AND SPECIFICATIONS MAY CHANGE WITHOUT NOTICE

INSTALLATION

Installation of the receiver

• one meter above the ground
• More than one meter from the wall
• The antenna should be pulled out completely

FUNCTION

Transmitter operation method

1. Open the battery cover, install two 1.5V AA batteries according to the correct polarity, then close the battery cover.
2. Gently press the power key switch, the power indicator light flashes or the screen is on for a long time, which indicates the battery is full;  If the low-voltage indicator is on for a long time or the display screen flashes. it indicates that the remaining service life of the battery is one hour or less; If both lights are off, which indicates the battery is completely dead or installed improperly, please must be replaced or reinstalled it.
3. When not in use, press the power switch for a long time until the screen turns off. If not in use for a long time, take out the battery to prevent the battery liquid from flouring out and damaging the battery shrapnel and internal circuit.

Transmitter

1.  Cartridge
2. Display screen
3.  Power switch
4. FM button
5. Battery cover

Receiver operation method
1. Connect the power socket well.
2. Audio output connection: Mix Unbalanced Output: Plug the audio cable into the UNBAL AF OUT:1&2 insert, and plug the other audio cable into the MIC IN or AUX IN insert of the mixer or amplifier. The other channel operates the same. Independent balanced output: BALA AF OUT:1&2 provides audio delivery for professional mixers, consoles, and amplifiers with a three-pin XLR connector.
3. Turn on the power switch and the power indicator will light up.
4. When the microphone power switch is gently pressed, the display is always on, and the voice switch is set to the “on” position, the receiver signal light “RF” will be on. The receiver outputs voice, and the volume can be adjusted by the volume control knob

Receiver

1. Channel A volume control knob
2. Channel A audio level indicator
3. Channel A signal indicator
4.  Channel A display
5.  Channel B display
6.  Channel B audio level indicator
7. Channel B signal indicator
8. Channel B volume control knob
9. Channel C volume control knob
10. Channel C audio level indicator
11. Channel C signal indicator
12. Channel C display
13. Channel D display
14.  Channel D audio level indicator
15. Channel D signal indicator
16. Channel D volume control knob
17.  Power switch

1. DC socket
2. Channel D antenna socket
3. Channel C antenna socket
4. Balance XLR socket output
5.  Mixed 1/4′ socket output
6.  Channel D 1/4′ socket output
7.  Channel C 1/4′ socket output
8.  Channel B 1/4′ socket output
9. Channel A 1/4′ socket output
10. Channel B antenna socket
11. Channel A antenna socket

TROUBLESHOOTING

Cautions needing attention

1.  Avoid placing dead corners when using the host to keep the signal receiving in good condition.
2.  Do not throw the handheld microphone to avoid serious damage.
3.  The machine body is not waterproof, please avoid water droplets or rain from entering the machine body.
4. Keep away from the electromagnetic field, high-voltage transmission networks,s, and large metal objects as far as possible.
5.  Do not disassemble by yourself. The internal voltage may cause an electric shock to you.
6. When replacing the battery, be sure to long-press the power button on the microphone until the screen turns off.
7.  If the microphone is not used for a long time, please take out the battery to prevent battery leakage.
8.  If the receiver is not used for a long time, please unplug the AC power plug.
9. If the machine falls apart or foreign matters enter the machine, do not continue to use it. Contact the local dealer or recognized service center immediately. Do not disassemble and repair by yourself. There is high voltage in the machine, which may cause you the risk of electric shock.
10. This machine does not contain parts that can be modified. Do not disassemble and modify the machine by yourself, we cannot take responsibility for modification.
11. Keep the power adapter easy to operate. If the power adapter is not used for a long time, please unplug the AC power plug.
12. In order to protect the environment, please put the waste battery into the designated classified trash can or return it to the manufacturer. It can not be discarded directly.
13. Do not put the battery or battery pack in the sun, fire baking, and other similar overheated environments.

Note: due to the continuous improvement of the product, the parameters may be changed without notice. The picture may be slightly different from the real object, please take the real object as the standard.

FEATURE

Display function

Matching method
Ready to use: there is no need to carry out too many operations. Just turn on the handheld microphone and it will automatically pair with the receiver.
Important tips
If you want to change the frequency during use, please briefly press the frequency conversion key i once. The handheld microphone display flashes once, indicating that the frequency has been changed.

TECHNICAL SPECIFICATIONS

Receiver Frequency range: 640-690MHz
Channels: 4×25 (Frequency conversion)
Response: 50Hz-18KHz
RF production: high-performance integrated IC
RF bandwidth: 50Mktz
Signal to noise ratio: >105dB (A weighted peak)
Dynamic range: >100dB
Distortion: <1.0o/C1KHz
Use temperature: -18-50°C
Working range: 50m
Receive mode: high-performance integrated IC
Sensitivity: >-105dB
Display: LCD
Output: Mixed/two balanced/unbalanced output
Channel: 4
Transmitter
RF accuracy: ±5ppm<10KHz
Nominal frequency offset: 25KHz
Harmonics: <-45dB/c
Output power: >10dB/m
Display: LCD
Current consumption: <150mAiNV
Power supply: AA1.5Vx8
Battery life: About 6 hours

ACCESSORIES

1 x Receiver
4 x Transmitter
1 x Audio cable
4 x Fixed connector antenna
2 x Foxed aluminum angle of chassis (for installation 0119 inch cabinet)
1 x Power adapter
1 x Instructions

     Email: service@donnerdeal.com
www.donnerdeal.com
Copyright 2021 Donner Technology. All rights reserved.

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