WM-20UHF - Microphone PARTY LIGHT&SOUND - Free user manual and instructions

Product type	Dual UHF wireless microphone
Brand	PARTY LIGHT & SOUND
Model	WM-20UHF
Transmission system	UHF
Carrier frequency	863.2 MHz and 864.8 MHz
Maximum range	30 m
Audio bandwidth	40 - 15000 Hz ±3 dB
Total harmonic distortion	< 0.5%
Receiver power supply	220-240 V AC via mains adapter (5 V DC / 10 W)
Microphone power supply	2 x 1.5 V AA batteries (LR6)
Audio outputs	6.35 mm unbalanced jack and balanced XLR
Antennas	2 deployable antennas at 90°
LED indicators	Power, RF signal per channel, audio level, low battery
Noise reduction	Squelch
Simultaneous use of multiple systems	Yes (set to different frequencies)
Color cap for identification	Yes
Windshield	Yes
Safety instructions	Use indoors, avoid moisture, do not block ventilation, unplug before cleaning, etc.
Maintenance	Unplug before cleaning, do not use liquids, clean with a dry cloth
Recycling	Do not dispose of with household waste, recycle at a specialized collection point

Frequently Asked Questions - WM-20UHF PARTY LIGHT&SOUND

How to connect the WM-20UHF system?

Connect the supplied mains adapter to the DC jack of the receiver, then to a mains socket. Position the antennas at 90°. Connect the audio output (6.35 mm jack or XLR) to the input of your amplifier or mixer.

How to insert batteries into the microphone?

Slide the battery compartment cover to open it. Insert two LR6 (AA) batteries respecting polarity (+/-). Close the compartment. The red light turns on if batteries are low.

What to do if the microphone produces no sound?

Check that the microphone's ON/OFF switch is set to ON. Ensure batteries are correctly inserted and not discharged. Check the receiver connection (mains adapter on). Increase the volume on the receiver and check audio connections. If the signal LEDs are off, move the microphone closer to the receiver and verify they are on the same frequency.

What is the maximum range of the system?

The typical range is 30 meters under direct line-of-sight conditions. For optimal performance, place the receiver in view of the microphone and avoid metal obstacles.

How to use multiple UHF systems simultaneously?

Set each system to a different frequency (frequencies are indicated on the back of the receiver). Systems can then operate without interference in the same space.

What do the indicators on the receiver mean?

The power indicator shows power on. The signal A/B LEDs light up when the receiver receives a UHF signal. The audio LEDs flash when audio is present. A red LED on the microphone indicates low battery (less than one hour remaining).

How to reduce interference and background noise?

Identify and move away from potential interference sources (other RF devices). If the signal LEDs are on but noise persists, change frequency or use another system. The built-in squelch circuit filters weak signals.

How to maintain and clean the device?

Always unplug the receiver before cleaning. Use a dry, soft cloth. Never pour liquid on the device. Clean the microphone grille carefully to avoid damaging the capsule.

What to do in case of sound distortion?

If sound gradually becomes distorted, the microphone batteries are likely low. Replace with new batteries. Also check the volume level on the receiver and connected equipment.

How to recycle the product at end of life?

Do not dispose of the device with household waste. Take it to a specialized collection point for electronic waste. Consult your municipality or retailer for local recycling options.

USER MANUAL WM-20UHF PARTY LIGHT&SOUND

Imported from China by

C E

LOTRONIC SA

Avenue Zénobe Gramme 9

B-1480 Saintes

OPERATING INSTRUCTIONS

Important Safety instructions and danger warnings

• Please read the manual carefully and keep it for future reference.
• All safety instructions and warnings must be adhered to. They are part of the manual and must be kept with the manual.
• Any guarantee claims are rendered invalid if damage occurs due to non-observation of these operating instructions. We assume no liability for any consequent damage.
• We assume no liability for personal injury or damage to property caused by incorrect handling or nonobservance of the safety instructions. Any guarantee claims expire in such cases.
• Unauthorized conversions and/or modifications of the appliance are not permitted for safety and licensing reasons (CE).
• The appliance is approved for operation in dry, closed rooms only. Do not operate the device nearby water, such as in bathrooms or nearby swimming pools.
• The appliance may not be exposed to extreme temperatures (< +5^ C / > +35^ C) in operation.
• The appliance may not be subjected to strong vibrations or heavy mechanical strain.
• Do not place any recipients filled with liquids, such as glasses or vases, on top of or directly next to the appliance. They could fall over, causing water to enter the appliance. Never pour out liquids above the appliance. Do not place any small objects, such as coins or paper clips, on the appliance since they could fall inside the appliance. You run a high risk of causing a fire or life-threatening electrocution! If any liquid or objects enter the appliance nevertheless, pull the mains plug out of the socket immediately and contact a specialist.
• The appliance has been constructed according to protection class II (only for double insulated units without earth terminal).
• Only pull the mains plug out of the socket by the intended gripping surface. Do not pull it by the cable.
• Never plug the mains plug in or out with damp or wet hands.
• Always pull the mains plug out of the mains socket:

Before cleaning the appliance
If there is a thunderstorm
If you will not be using the appliance for a long period of time ( ≥ 1 week)

• Electrical appliances must be kept out of the reach of children. Be particularly careful if children are present. Children are not aware of the hazards involved in handing electrical appliances improperly. Children could attempt to poke objects into the appliance. There is a life-threatening danger of electrocution.
• Do not leave the appliance unattended while operating it.
• Never place the appliance on an unstable or movable surface. Persons could be injured or the appliance damaged by it falling down.
• Live components can be exposed by opening covers or removing components (unless this can be done without tools). Contact points can also be live. If the appliance has to be opened in order to calibrate, service, repair or replace components or assemblies, all of its poles must be disconnected from all sources of voltage first. If the appliance has to be kept open and under voltage during maintenance or repairs, this work may only be carried out by a specialist who is familiar with the risks involved and the relevant regulations.
• Never connect the appliance directly after transferring it from a cold to a warm room. The condensation water that forms could destroy the appliance or result in an electric shock. Allow the device to reach room temperature before connecting it. Wait until the condensation water has evaporated. This can take some hours.

• Do not place any naked flames such as those of burning candles on or next to the appliance.

• Do not place the appliance on soft surfaces such as carpets or beds. Do not cover the air vents of the appliance. Do not obstruct the air circulation with objects such as magazines, table cloths or curtains. This prevents the dissipation of heat from the appliance and can result in overheating.

• Only use the appliance in a moderate climate, not in tropical environments.
• Defective mains cables may only be replaced by specialists. Danger of shock hazard!
• If you are not sure about the correct connection or if questions arise which are not answered by the operating instructions, please do not hesitate to contact support or a specialist of your choice. Consult a specialist if you are in doubt the operating principle or the safety of the product.

SYSTEM FEATURES

1. Multiple system use: Several UHF systems can be used in the same performance space. Each system must be set to a different frequency (frequency marked on the back of the receiver).
2. Simultaneous output use: Unbalanced 6.35mm jack plug and balanced XLR output connectors may be used simultaneously to different external devices.
3. Range: UHF series transmitters will work at a distance of up to 30m from the receiver.
4. Noise squelch: Squelch circuit analyzes signal strength and quality to avoid interference due to environmental RF noise.
5. Low battery warning light: A red light on the microphone(s) warns the user that there is less than one hour of battery life left.

DUAL CHANNEL RECEIVER

Front panel

1. Power Button: Power ON/OFF the receiver.
2. Power Indicator: Indicate the power ON/OFF.
3. Volume Knob channel 1.
4. Volume knob channel 2
   5 & 6."RF" signal Indicator: It glows when the Receiver receives an RF signal from mic 1 & mic2.
   7 & 8."AF"Audio Level Indicator: Indicate the wireless system audio signal level of channel 1 & 2.
   9 & 10. Antenna channel 1 & 2

Rear panel.

1. 5Vdc Power Jack: Connect the AC/DC adapter to receiver
2. Audio Output Jack 6.35mm: Connect the audio cable from this jack to the input port of amplifier, mixer.
3. XLR Balanced Output Jack: Connect the audio cable from this jack to the input port of amplifier, mixer.

MICROPHONE TRANSMITTER FEATURES

1. Grille: Protects the cartridge and helps reducing the breath sounds and wind noise.
2. Power indicator
3. ON/OFF switch
4. Tail-hood to identify the mic
5. Display showing the frequency

TRANSMITTER BATTERY INSTALLATION

Push the battery cover open. Insert 2x AA batteries into the battery compartment with the correct polarity. Close the battery cover.

SYSTEM CONNECTION

1. Receiver power connection: Connect the DC connector of the supplied AC/DC adaptor to the DC input socket on the receiver. Plug the AC connector into an appropriate mains outlet.
2. Antenna: Keep the position of the antenna at an angle of 90^ .
3. Audio connection: Connect the corresponding output of the receiver via a 6.35mm Jack lead or an XLR lead to the input of a power amplifier, mixer, etc.

TIPS TO ACHIEVE MAXIMUM PERFORMANCE

Make sure you can always see the receiver antenna from the transmitter position.

Keep the distance from transmitter to receiver antenna as short as possible.

Avoid placing the receiver antennae near metal surfaces and obstruction.

Monitor battery power and replace the battery as soon as the red light goes on.

If stacking or rack mounting receivers in a multiple system, do not allow antennae to touch or cross.

Perform a walk-through before performance or presentation. If dead spots are found, adjust location of the receiver. If dead spots remain, mark them and avoid them during performance.

For a good operation, don't place the receiver near to sources of interference. Place the receiver in 1m distance from the ground and let at least 1m free space around the receiver.

TROUBLESHOOTING

Problem	Indicator status	Solution
No sound	Red transmitter indicator doesn’t flash	Slide the POWER ON/OFF switch on the transmitter to ON. Make sure that the batteries are properly inserted with the correct polarity (+/-). If the batteries are correctly inserted, replace them by new ones.
No sound	The red POWER indicator on the receiver is OFF	Check if the mains adaptor is plugged correctly into the mains outlet and the DC socket. Make sure that the mains outlet supplies the proper voltage
No sound	The signal indicators A/B on the receiver are glowing	Increase the volume on the receiver. Check the output connections from the receiver to the external equipment
No sound	The signal indicators A/B on the receiver are off. The POWER indicators on the transmitter and receiver are glowing	Make sure that the frequencies of the receiver and the transmitter match. Move the transmitter closer to the receiver
Distortion level increases gradually	The signal indicators A/B on the receiver and LOW BATTERY indicator on the transmitter are glowing	Replace transmitter battery
Bursts of noise or other audible radio signals are present	Signal indicators A/B are on	Identify potential sources of interference (other 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 the performing area	Signal indicators A/B on the receiver are off when the sound is lost	Reposition receiver and perform walk-through test again. If audio dropouts persist, mark “dead” spots and avid them during performance

SYSTEM SPECIFICATIONS

RF Carrier frequency range . 863.2MHz & 864.8MHzMHz

Operating range 30m typical

Audio frequency response 40-15,000Hz ±3dB

THD. <0.5%

RECEIVER SPECIFICATIONS

Input power. 5Vdc via supplied mains adaptor

Signal/noise ratio .>80dB

Border upon channel rejection .>80dB

Image & spurious rejection. >80dB

Receiving sensitivity. >5dBu

MICROPHONE SPECIFICATIONS

Power requirements . 2 x 1.5AA batteries

Modulation type F3E

RF output. >10dBm

Max. deviation ±25kHz

Electric products must not be put into household waste. Please bring them to a recycling centre. Ask your local authorities or your dealer about the way to proceed.

INSTRUCTIONS D'UTILISATION

ONTVANGER
Front panel

Lichtnet adapter 5Vdc nom. 10W

Image & spurious rejection. >80dB

Spurious emission .<40dB

EC Declaration of Conformity

We, LOTRONIC SA

Avenue Zénobe Gramme, 9

1480 SAINTES

Belgique

+32.2.390.91.91

certify and declare under our sole responsibility that the following product:

Trade name: PARTY LIGHT & SOUND

Product name: DUAL WIRELESS SYSTEM WITH 2 UHF HANDS MICROPHONES

Type or model: WM-20UHF

conforms with the essential requirements of:

RTTE directive 1999/5/EC - LVD directive 2014/35/EU

based on the following standards applied:

EN60065:2014

EN62479 :2010

EN 301 489-1 V1.9.2

EN 301 489-9 V1.4.1

EN 301 357-1 V1.4.1

EN 301 357-2 V1.4.1

Place and date of issue: Saintes (Belgium), on 09/09/2016

Guive Akbar

Technical manager

CEO

Responsible technique

LOTRONIC SA
Av. Zenobe Gramme 9
1480 Saintes - Belgium
Tel. [phone]
Fax [phone]
[e-mail]
www.lotronic.com