MadBoy U-TUBE 20PD User manual

OWNER’S MANUAL
MULTI CHANNEL WIRELESS RECHARGEABLE
MICROPHONE SYSTEM
U-TUBE 20PD
WWW.MADBOY-AUDIO.COM
ENGLISH
VO L
U-TU BE 2 0P D
SET SET
CHANNEL CHANNEL VO L
IR / IR /

Table of Contents
Safety Instructions ......................................................................................................
Getting Started
Features ..................................................................................................................
Connectors ..............................................................................................................
What’s in the Box .....................................................................................................
Quick Start ..................................................................................................................
Receiver
Front Panel ..............................................................................................................
Back Panel ...............................................................................................................
Wireless Microphone
Functions .................................................................................................................
Operation .................................................................................................................
Charging Dock ............................................................................................................
Getting Connected
Operations Before Connecting the Receiver ...........................................................
Connecting the Receiver .........................................................................................
Connecting the Microphone .....................................................................................
Connecting from Mixed Output
Mixer with Unbalanced 1/4" TS Microphone Input Jacks ........................................
Connecting from Balanced Outputs
Mixer with Unbalanced 1/4" TS Microphone Inputs .................................................
Mixer with Balanced XLR Microphone Inputs ..........................................................
Mixer with Balanced 1/4" TRS Microphone Inputs ..................................................
Cables and Connectors ..............................................................................................
Technical Specifications .............................................................................................
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8-9
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Safety Instructions
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1. Read instructions: All safety and operating instructions should be read before installation.
2. Keep instructions: Safety and operating instruction should be retained for future reference.
3. Heed warnings: Warnings on the apparatus and in the operating instruction should be adhered to.
4. Follow instructions: All operating instructions should be followed.
5. Accessories: Only use accessories specified by the manufacturer.
6. Water and moisture: Do not use this apparatus near water.
7. Ventilation: Do not block any ventilation openings.
8. Heat: Do not install near heat sources such as radiators or other apparatus that produces heat.
9. Protect power cord: Power cord should be placed so that it is not likely to be walked on or pinched
by items placed upon it. Do not use the apparatus if power cord is damaged.
10. Cleaning: Unplug power cord before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a
damp cloth for cleaning.
11. Nonuse periods: Unplug the power cord if apparatus is left unused for a long period of time.
12. Objects and liquids: Care should be taken so that object do not fall and liquids are not spilled into
the enclosure through the openings.
13. Recycling: Equipment should not be disposed of in the normal waste stream. Dispose of battery
packs properly. Please follow your regional recycling scheme for batteries, packaging, and electronic
waste.
14. Damage requiring service: The apparatus should be serviced by qualified service personnel when:
A. Objects has fallen inside enclosure.
B. The apparatus has exposed to rain or moisture.
C. The apparatus has been dropped or enclosure is damaged.
D. The apparatus do not operate normally.
15. Servicing: Refer all servicing to the qualified service personnel.
16. Warranty: Warranty service should be done by qualified service personnel authorized by Madboy
Audio International Oy. Warranty is invalidated if a warranty seal has been altered, removed or
defaced.
Warning!
To reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture.

Getting Started
Features:
ŸMulti channel wireless rechargeable UHF microphone system
ŸTwo rechargeable wireless microphones with changeable frequencies
ŸCharging dock for two microphones
ŸStrong metal grill with foam protects the cartridge and reduces breath sounds
ŸFrequency and battery level indicator on microphones
ŸDisplay with signal and audio level indicator for each channel in the receiver
ŸSetting microphone’s frequency using IR transmitter
ŸSeparate antennas for both channels
ŸIndividual volume controls for both microphones
ŸBalanced XLR outputs for each microphone
ŸUnbalanced 1/4" TS jack output for mixed signal output
ŸOperating range up to 50 meters
Connectors:
ŸOutputs:
§Balanced XLR connector for microphone A
§Balanced XLR connector for microphone B
§Unbalanced 1/4" TS jack for mixed out (microphone A + microphone B)
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What’s in the Box:
WIRELESS
MICROPHONE (2) ANTENNA (2)
UNBALANCED
1/4" TS PLUG CABLE (1)
RECHARGEABLE
AA BATTERY (4)
RECEIVER (1)
POWER ADAPTER
12 V / 1 A (2)
CHARGING DOCK (1)
MANUAL (1)
OWNER’S MANUA L
U-TUBE 20PD
WWW.MAD BOY-AUDIO.COM
ENGLISH
VOL
U-T UBE 20 PD
SET S ET
CHANNEL CHANNEL VOL
IR/ I R/
VOL
U-TUBE 20PD
SET SET
CHANNEL CHANNEL VOL
IR/ IR/

Quick start
1. Connect the supplied power adapter (12V/1A) and antennas to the receiver.
2. Connect another power adapter (12V/1A) to the charger station.
3. Connect the microphone sound to your karaoke player, mixer or mixing amplifier.
4. Turn on the receiver and select desired channels for both microphones.
5. Install rechargeable batteries in microphones and turn them on.
6. Press SET button on the left side of the receiver and align the microphone towards the
receiver to set the frequency.
7. Press SET button on the right side of the receiver and align another microphone towards
the receiver to set the frequency.
8. Adjust the microphone volume to value of 18 using VOL buttons on the receiver.
9. Adjust the microphone volume on the mixer and check the microphone sound. If the
sound is too weak, increase the amplifier’s volume. If the microphone sound is distorted,
decrease the volume on the receiver and increase volume on the amplifier.
Notice:
ŸAV amplifiers don’t have microphone inputs, so you cannot connect the receiver directly to your AV
amplifier. If your AV amplifier have microphone input it’s usually used for automatic adjustment of the
system.
ŸMicrophone frequency won’t change automatically when changed on the receiver. You must send the
frequency using SET button on the receiver and align the microphone towards the receiver.
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Receiver
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Front Panel:
1. VOL: Volume controls for microphone channels. Typical value of 18 is suitable for most
of the mixers. Setting microphone volume too high, may cause distortion in the
microphone input of the mixer. Lower the volume from the receiver if microphone sound
is distorted.
2. CHANNEL: Set microphone channel frequency by pressing shortly. Left side have
channels 0 - 16 ja right side have channels 17 - 33. Notice! If you keep CHANNEL -
button pressed, receiver scans the frequency range and sets the channel which have
minimum interference.
3. SET/LOCK: Press shortly to send the frequency of the channel to the microphone using
IR transmitter. Align the microphone towards the receiver during sync. You can lock
receiver’s buttons by keeping the button pressed long time. ”LC” on the display indicates
that buttons are locked. Remove the lock by keeping the button pressed again. ”LC 0"
on the display indicates that the lock is removed.
4. POWER BUTTON: Keep the button pressed to turn the power on or off.
5. RF/AF: RF indicates wireless signal strength and AF indicates audio signal level of the
microphone channel.
6. FREQUENCY: Currently used frequency of the microphone channel.
7. IR TRANSMITTER: Receiver can send the frequency to the microphone using IR
transmitter. Aling the microphone towards this point during sync.
1 2
VOL
U-TUBE 20PD
SET SET
CHANNEL CHAN NEL VOL
IR/ IR/
RF AF CH
011
CH
023
829.000
825.750
RFAF
FREQUENCY MHz FREQUENCY MHz
0
-10
-20
-25
-30
0
-10
-20
-25
-30
40
30
20
10
5
40
30
20
10
5
3456 7
Notice! VOL-, CHANNEL- ja SET-buttons on the left side are for microphone channel A and
buttons on the left side are for microphone channel B.

Back panel:
1. ANT-B: Install the antenna for the wireless microphone B.
2. BALANCED-B: Balanced XLR output for wireless microphone B. The cable sold
separately.
3. MIX A+B: Unbalanced 1/4" TS jack for mixed output (microphone 1 + microphone 2).
Connect mixed microphone sound to the mixer using the supplied mono plug cable.
4. POWER INPUT: Connect the supplied power adapter (12V/1A).
5. BALANCED-A: Balanced XLR output for wireless microphone A. The cable sold
separately.
6. ANT-A: Install the antenna for the wireless microphone A.
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MODEL: U-TUBE 20PD
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SERIAL NO.:
ANT-AANT-B
POWER
INPUT
DC 12 V / 0.3 A BALA NCED-ABALA NCED-B MIX A+B
23 4 56
Receiver
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Wireless Microphone
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Functions
1. GRILL: Removable metal grill protects a cartridge from damage and an inner foam filter
reduces wind, breath and pop noises.
2. IR: IR receiver for setting the frequency of the microphone. Align this point towards the
receiver during sync.
3. DISPLAY: Display indicates currently used frequency and battery level. If the battery level
indicator is blinking, it means the battery level is low. Low battery level may cause
dropouts or completely signal loss. Please charge the batteries immediately.
4. POWER BUTTON: Keep the button pressed a moment to turn the microphone on or off.
5. BATTERY COVER: Battery compartment for two rechargeable ’AA’ batteries. Remove
batteries if the microphone is not used for long time.
6. CHARGING CONTACTS: Charging contacts on the bottom of the wireless microphone.
Do not charge non-chargeable batteries!
Operation
1. Open the battery cover by turning the cover counterclockwise. Install two rechargeable
’AA’ batteries and close the cover. Pay attention to the correct polarity.
2. Turn on the microphone by keeping the power button pressed awhile. Currently used
frequency is shown on the display.
3. Check that the microphone’s and receiver’s frequencies are same. If the frequency
doesn’t match, send the frequency by shortly pressing the SET button on the receiver
and align the microphone towards the receiver.
4. Receiver’s RF level indicator should turn on now to indicate connection between the
wireless microphone and the receiver.
5. Turn off the microphone by keeping the power button pressed awhile.
Please handle the wireless microphone with care.
Warranty does not cover damage caused by accidental
misuse of the product.
Notice:
ŸReceiver’s channel A have frequency channels of 0-16 and channel B have frequency channels
of 17-33. Microphones are not limited to work only at channel A or B, so both microphones can
be set to channel 0 to 33.
ŸMake sure that both microphones are not set at same frequency channel. This will cause signal
degration and complete signal loss.
ŸThe microphone frequency is always changed by pressing SET button on the receiver. You
cannot change the frequency from microphone.

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2
3
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Wireless Microphone
WWW.MADBOY-AUDIO.COM
9
823.000
FREQ PILOT GAIN
MHz
MICROPHONE
FREQUENCY
BATTERY
LEVEL
INDICATOR
U-TUBE 20PD

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Charging Dock
10
DC 12V
--
-
1 2 356
Functions
1. Charging socket 1.
2. Charging indicator light for socket 1.
3. Power light turns on when the power adapter is connected.
4. Charging indicator light for socket 2.
5. Charging socket 2.
6. Connect the supplied power adapter (12V/1A).
Operation
1. Connect power adapter (12V/1A) to the DC jack on the back side of the charging dock.
2. Install rechargeable ’AA’ batteries in the microphone and put the microphone in one of
the charging sockets.
3. Charging light is on while the battery is charging and turns off after battery is fully
charged.
Note! Do not charge non-chargeable batteries. Non-chargeable battery will overheat and
seal breaks causing the battery to leak or explode.
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