Promic UR-M256LC User Manual

M

L

WIRELESS

MICROPHONE

SYSTEM

PROMIC TECHNOLOGY CO.,LTD

ADD: Ningbo Free Trade Zone, West Area.
Zhejiang, P.R.C
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
Http: //www.promic.cn

WIRELESS MICROPHONE SYSTE

USER'S MANUA

ENGLISH

TROUBLE SHOOTING & BASIC SET

8.Trouble-shooting

Problem
No sound

Noise or
interference
occurs

Distortion

Note: This system may be interfered by radio wave.

9. Basic Set

(1) Receiver
(2) Antenna
(3) Transmitter
(4) 9V Battery
(5) Adapter
(6) 6.3 Signal Cable
(7) XLR Signal Cable
(8) User's Manual

Optional parts:
Mounting rack 2PCS
High sensitivity cartridge set

Solution

Check receiver and microphone power.
Make sure transmitter and receiver frequency is same.
Check if amplifier or other equipment's power is on. Check if the
connection between receiver and mixer or amplifier is proper.
Check microphone battery power.
Check receiver antennas connection.
Check if receiver is too close to metal parts or there is barrier
between transmitter and receiver.

Make sure microphone battery is installed firmly and there is no
interferential source.
Check if signal cable is well connected.
Check receiver antennas connection.
When using 2 or more microphone set simultaneously, make
sure the frequencies are not interfered each other.
Check if the interference comes from other wireless microphone,
TV, radio and etc.

Check if amplifier volume is too high or too small.
Check if the interference comes from other wireless microphone,
TV, radio and etc.

1PC
2PCS
1PC
1PC
1PC
1PC
1PC
1PC

Table of Contents

1. Introduction

2. Important Safeguards

3. Parts Description

4. Specifications

5. Features & Frequency List

6. User's Guide

7. Connection

8. Trouble-shooting

9. Basic Set

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CONTENTS

................................................................

1
1

2~3

3
4~6
7~9

10

11
11

Designs and specifications are subject to change without notice for improvement.

11

IMPORTANT SAFEGUARDS

CONNECTION

1. Introduction

Thank you for choosing our UHF single channel true diversity wireless microphone system.
Before use please read this manual carefully to understand the correct operation and have
the best results. It is a professional wireless microphone system designed for stage applications.
All the features completely meet the strict requirement of professional users.
With excellent quality, affordable price, stable performance, and easy to operate, UR-M256LC
is your best choice.

2. Important Safeguards

FCC Caution :To assure continued compliance, any changes or modifications not expressly
approved by the party responsible for compliance could void the user's authority to operate
this equipment. (Example - use only shielded interface cables when connecting to computer
or peripheral devices).
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
(1) This device may not cause harmful interference, and (2) This device must accept any
interference received, including interference that may cause undesired operation.

Do not open this product by yourself for adjustment.
When abnormity occurs, Please submit this equipment to our dealer for examination, adjus-

tment and repair.
One receiver cannot receive signal from two same frequency microphones simultaneously.
Other microphones with different frequency or brand cannot be used for this receiver.

To reduce the risk of fire or electric shock, do not remove the cover. High
voltage parts inside.

To reduce the risk of electric shock, do not touch power outlet when it thunders,
do not pull power plug with wet hands.

To reduce the risk of fire or electric shock from damaged power cord, do not
pull power cord from power outlet strongly. Always grasp the plug tightly then
pull it out. Turn off the power if this equipment will not be used for a long period
of time after set-up.

To reduce the risk of electric shock, use only the specified power voltage.

To prevent damage from dropping or inclining, do not put heavy articles on the
top of this equipment, do not place this equipment on shaking, inclining
unstable places.
To reduce the risk of electric shock, do not put vessel with liquid or small metal
parts on the top of this equipment, do not let metal or flammable parts drop
into this equipment.
To reduce the risk of fire or electric shock, do not expose this equipment and
power cord to moisture, dust and sun. Keep away from hot apparatus or
places with oil, smoke and water.

Keep power plug and outlet clean. Power plug and outlet with accumulated
dust is apt to cause fire, clean them regularly. Insert power plug into power
outlet entirely.
When abnormity occurs, please pull out power plug and contact our dealer
when the following happens:

When smoke comes out from this equipment and burning smell can be smelt.
Water or other article goes into this equipment.
Drop on the ground and unit is damaged. No sound output.
Power cord damaged. (Cord core exposes or cord broken)

1

Do Not
Disassemble

Do Not
Touch

Pull Out
AC Plug

Forbidden

Forbidden

Forbidden

Forbidden

Caution

Caution

7. Connection

Use 6.3 unbalanced signal cable or 3 pin XLR balanced signal cable to connect
receiver AF Output to MIC-IN jack on mixer or amplifier.(Refer to following illustration)
Before installation please make sure receiver frequency is same as transmitter
frequency.

DC POWER
ADAPTOR

5

1234

6/7 8/9 10/11

AUDIO MIXER

LOUD SPEAKER LOUD SPEAKERAMPLIFIER

LOUTPUTR

10

USER'S GUIDE

PARTS DESCRIPTION

4. Channel adjust: Press CH button (6) for about 3 seconds, CH number on LCD
will flash; release CH button (6), press GP button to move CH UP or CH button to
move CH down.

5. After adjusting Group and Channel, release all buttons, group or channel will flash
about 3 seconds and then stop, frequency will be locked and saved.

6. Adjust transmitter's GP and CH (according to above procedure 3, 4, 5) to make the
frequency same as receiver.

7. After 30 seconds if no buttons are pressed, LCD will display battery power.
Press GP button or CH button, LCD will show GP number and CH number.
Note: If transmitter's LCD shows"LO", it means battery power will be exhausted.
Please exchange new battery. But the transmitter will still work normally for
about 3 minutes. After 3 minutes if battery is not replaced, transmitter will stop
working.

8. Insert attached headset or clip-on MIC into body pack transmitter MIC-IN jack. Use
attached screwdriver (3) to adjust Gain Control (2) to have appropriate audio gain.

3. Parts Description

3.1 Receiver

A B

AF

,

CH

(2)

(4)

A B

AF

,

CH

MHz

(3)

(5)

(Front Panel) (Rear Panel)

MHz

(LCD Display)

(8) (9) (10) (11) (12)(12) (7)(6) (1)

(1) Power Switch
(2) GP: Group set button and GP/CH adjust(UP).
(3) CH: Channel set button and GP/CH adjust(DOWN).
(4) GP LED indicator: press GP button, it will light.
(5) CH LED indicator: press CH button, it will light.
(6) LCD Display a. RF-A reception b. RF-B reception c. RF signal strength indicator
d. GP number e. CH number f . AF signal strength indicator g. Frequency
(7) Antenna B
(8) AF unbalanced output: phone jack.
(9) AF balanced output: XLR jack, balanced AF signal output sensitivity is same as
dynamic microphone.
(10) DC Power Source Input Jack: Connect AC/DC power supply
(11) Antenna A
(12) Mounting Rack

3.2 Microphone
A. Handheld Microphone

(1) Mesh & cartridge: Cartridge is protected

(1)

(1)

by mesh to eliminate "POP" noise.
(2) CH LCD display
a. GP number b. CH number
(3) GP: Group set button and GP/CH adjust (UP).
(4) CH: Channel set button and GP/CH adjust
(DOWN).
(5) Power Switch

(3)

(2)
(4)

OFF

(3)

(5)

(6)

(2)
(4)
(5)

(6)

(6) Handheld microphone body: Connect the
cartridge, mesh, and battery compartment.
(7) Battery Compartment / Cover: For setting
battery.
(8) Open Button: push to open battery compartment.

PUSH

(8)

(7)

(Picture for reference only)

(7)

29

PARTS DESCRIPTION & SPECIFICATIONS

USER'S GUIDE

B. Body Pack Transmitter
(1) MIC-IN Jack
(2) Gain Control
(3) Small Screwdriver
(4) CH LCD display
a. GP number b. CH number
(5) GP: Group set button and
GP/CH adjust (UP).
(6) CH: Channel set button and
GP/CH adjust (DOWN).
(7) Power Switch
(8) Battery Compartment / Cover:
Insert 9V battery.
(9) Antenna

4. Specifications

4.1 General
Frequency Range
Oscillation Mode
Frequency Number
Frequency Response
Receiving Range

4.2 Receiver
Frequency Bandwidth
Frequency Stability
Sensitivity
Adjacent Channel Rejection
AF Output
SNR
Distortion
Function Display Mode
Power Source

4.3 Transmitter
Frequency Bandwidth
Frequency Stability
Modulation
Spurious Emission
AF Modulation
Power Source
Current Consumption
Transmitting Power
Function Display Mode

(4)
(5)

(6)
(7)

(1)

(2)

(Top View)

(LCD Display) (Front View)

614MHz-806MHz
PLL synthesized
256
50Hz-20KHz
100m

25MHz

0.005%

-95dBm S/N 40dB
90dB

100mV 5mV

100dB
1%(AF=1KHz)

LCD
DC 12-15V

25MHz

0.005%

FM

55dB
25K

DC 9V
40mA
10mW
LCD

(3)

4. Channel adjust: Press CH button(4)for about 3 seconds, CH number on LCD will
flash; release CH button (4), press GP button to move CH UP or CH button to move
CH down.

5. After adjusting Group or Channel, release all buttons, group or channel will flash
about 3 seconds and then stop, frequency will be locked and saved.

6. Adjust microphone's GP and CH (according to above procedure 3,4,5) to make the

(8)

frequency same as receiver.

7. After 30 seconds if no buttons are pressed, LCD will display battery power. Press
GP button or CH button, LCD will show GP number and CH number.
Note: If microphone LCD shows "LO", it means battery power will be exhausted.
Please exchange new battery. In the meanwhile, microphone will still work

(9)

normally for about 3 minutes. After 3 minutes if battery is not replaced,
microphone will stop working.

8. Take out battery if microphone is not going to be used for a long period of time.

9. Battery installation.
A. Turn battery bottom cover 90 degree anti-clockwise to "OPEN" position (figure 1),
press "push" button to spring out battery compartment a little, pull out the battery
compartment and install or exchange battery.
B. Insert 9V battery(pay attention to the positive and negative pole) and then push
the battery compartment back (figure 2). Turn battery cover 90 degree clockwise
to "LOCK" position (figure 3).

OFF

OPEN

PUSH

OPEN

LOCK

LOCK

OFF

LOCK

LOCK

PUSH

Figure 1 Figure 2 Figure 3

6.3 Body Pack Transmitter

1. Open battery cover(8), insert attached 9V battery into battery compartment and
then close battery cover.

2. Turn on power switch (7), LCD will show group and channel set at last using time.

3. Group adjust: Press GP button (5) for about 3 seconds, GP number on LCD will
flash; release GP button (5), now GP button changes to UP function and CH button
changes to DOWN function, press GP button to move GP UP or CH button to move
GP down.

83

USER'S GUIDE

FEATURES

6. User's Guide

6.1 Receiver

1. Install attached two BNC antennas on the antenna jack at the rear panel of the
receiver. Incline antennas outwards 45 degree to get the best reception.

2. To get the best reception, install receiver at least 1 metre above the ground. Keep
transmitter at least 1 meter from receiver antennas and far away from interferential
sources.

3. Use attached mounting rack to install receiver on EIA standard rack.

Plug one end of the AC power adapter into AC power source with specified voltage

4.

and the other end into DC INPUT connector (10) on the back of receiver.

5. AF output: Insert one end of the signal cable into AF output jack (8) or (9) at the

back of the receiver and the other end of the signal cable into amplifier or mixer
MIC-IN jack.

6. Turn on power switch (1), LCD will light and show the group and channel number

set at last using time.

7. Press GP button (2), GP LED (4) will light; release the GP button, GP LED will

extinguish. Press CH button(3), CH LED indicator(5) will light; release the CH
button, CH LED will extinguish.

8. Group adjust: Press GP button (2) for about 3 seconds, GP number on LCD will

flash, frequency will also flash; release GP button(2), now GP button changes to
UP function and CH button changes to DOWN function, press GP button to move
GP UP or CH button to move GP down.

9. Channel adjust: Press CH button (3) for about 3 seconds, CH number on LCD

will flash, frequency will also flash; release CH button(3), press GP button to move
CH UP or CH button to move CH down.

10. After adjusting Group and Channel, release all buttons, group or channel will

flash about 3 seconds and then stop, frequency will be locked and saved.

11. Adjust receiver GP and CH to be same as transmitter GP and CH (

the above procedure 7,8,9)

, receiver LCD will show AF signal strength, RF signal

according to

strength and RF A or RF B reception.( These information will not show when
adjusting GP or CH, transmitter is not turned on, or GP and CH of transmitter is
different from receiver.)
Note: This system has 16 sets of preset frequencies (from 00 to 0F) which will not
interfere each other. Users are suggested to use these frequencies firstly.
Choose other frequencies if more frequencies are needed.

6.2 Handheld Microphone

1. Open battery cover then insert battery (pay attention to the positive and negative

pole). Close battery cover(please see following illustration for battery installation).

2. Turn on power switch (5), LCD will show group and channel set at last using time.

3. Group adjust: Press GP button (3) for about 3 seconds, GP number on LCD will

flash; release GP button (3), now GP button changes to UP function and CH button
(4) changes to DOWN function, press GP button to move GP UP or CH button
to move GP down.

5. Features

1. UHF PLL synthesized circuit, with 256 selectable frequencies for choice.

2. True diversity receiving mode can effectively avoid drop-outs and dead spots.
Available distance can be more than 100 metre.

With special anti-interference circuit and tone code security to effectively avoid

3.

interference and eliminate noise.

4. Adopt high stable circuit design and spare parts, this device can be operated in
a wide range of temperature environment (-10 ~+60 ). Advanced VCO circuit
design to allow performers shout loudly without any broken voice happen. It is the
best microphone system for stage performance.

5. Using high sensitivity, wide frequency response dynamic cartridge and advanced
signal processing circuit to present the real and natural voice of both male and
female. It is the top choice for live-performance singers.

Numeric LCD is clear and accurate in displaying receiving channel, receiving

6.

signal level and AF signal strength.

7. High performance cartridge. Following is frequency response figure.

X:1000Hz

Y:-59.3dBV/Pa
Y:-57.1dBm/Pa
D:0.0dB

Microphone Frequency Response dB Ref.1V/Pa

-50

-60

-70

-80

-90

-100
20 50 100 200 500

0 Deg

180 Deg

1K 2K

Y:-84.3dBV/Pa
Y:-82.1dBm/Pa
D:0.0dB
Z:-25.0dB

5K

10K 20K

0 Deg
180D eg

8. International EIA standard half U rack. Metal case. Strong and nice.

9. Pre-programmed 16 groups of frequency to be used simultaneously without any
interference, including 00,01,02,03,04,05,06,07,08,09,0A,0B,0C,0D,0E,0F.

10. Pre-set two groups of frequencies for choice. One is for USA standard, another
is for Europe standard. Following is frequency list.

47

805.850

804.150

802.250

800.350

798.650

796.550

794.750

792.850

791.050

789.650

787.850

786.450

784.650

792.650

789.750

791.350

795.950

795.550

780.150

789.850

794.450

801.450

786.050

783.750

791.550

780.950

791.150

794.050

786.850

790.950

787.750

784.750

795.050

792.750

788.750

785.050

786.650

798.150

788.350

801.550

781.050

803.250

805.450

799.350

800.450

796.050

798.350

788.250

784.350

793.150

796.850

803.450

799.950

794.650

794.350

786.550

780.850

797.950

787.950

790.350

799.750

796.650

793.250

791.250

795.650

788.850

782.550

790.450

785.150

796.750

802.750

802.550

798.050

781.650

793.650

796.250

785.350

787.650

782.050

804.350

783.350

801.050

791.750

799.550

802.950

804.650

796.450

781.850

791.950

803.050

804.150

785.750

784.450

782.350

782.650

787.450

789.450

795.450

803.550

803.950

795.250

793.750

786.150

803.750

799.850

800.650

802.050

787.550

781.350

792.450

796.950

803.350

784.250

780.250

797.550

804.550

794.550

789.250

790.750

784.950

782.250

799.150

801.150

800.050

805.050

791.450

800.550

792.550

797.050

798.750

805.150

800.250

784.150

794.850

786.350

800.850

799.050

802.350

786.950

783.450

791.650

797.250

789.350

797.350

793.350

798.250

780.550

783.650

792.250

788.450

790.150

792.050

798.650

784.850

792.350

799.650

787.150

783.850

795.350

788.150

793.550

801.750

789.050

805.350

800.750

795.850

804.750

789.950

802.650

798.550

795.150

790.050

796.150

801.850

792.950

784.550

790.650

793.050

783.050

794.950

781.250

780.350

801.650

785.450

804.850

798.850

787.350

783.150

793.450

786.250

780.650

781.950

797.850

788.050

790.550

781.550

782.950

803.650

785.950

782.750

797.150

789.550

785.550

794.150

798.450

801.950

804.250

785.850

FREQUENCY LISTFREQUENCY LIST

864.750

857.000

858.100

855.500

857.150

863.950

851.300

863.150

863.550

856.700

DEF

863.050

861.950

857.900

862.850

863.350

C

861.850

860.700

862.950

863.750

854.900

860.150

857.300

854.000

861.050

855.950

A B

859.250

857.800

861.150

860.250

855.000

858.550

852.100

854.450

853.000

858.200

857.650

861.400

853.750

861.500

857.450

856.950

858.500

857.200

859.400

860.400

6789

855.850

859.200

863.500

856.100

859.950

5

855.150

862.400

859.650

863.200

851.500

4

854.250

861.600

852.400

857.850

861.200

3

853.550

856.150

861.000

863.600

859.300

856.050

851.900

853.400

856.850

862.350

858.000

851.200

860.050

862.300

854.600

856.600

854.500

853.350

854.750

860.350

861.450

859.350

858.850

862.250

858.750

854.800

862.100

856.450

858.150

862.550

860.750

852.600

851.450

859.150

851.600

859.000

861.550

862.700

858.350

859.900

857.950

860.900

863.300

862.200

857.700

861.250

862.450

853.600

852.200

852.000

859.050

862.800

860.650

851.350

861.300

854.050

863.400

856.400

852.350

859.850

854.300

856.300

856.200

854.200

853.900

862.650

858.800

861.900

857.350

855.450

855.100

860.000

855.350

859.700

861.350

863.450

855.750

852.750

863.000

860.200

863.700

860.600

860.300

855.650

853.200

853.700

862.050

860.800

853.500

862.500

852.250

857.050

852.500

856.750

862.750

861.800

854.550

859.500

851.750

855.200

856.550

863.250

860.450

855.400

858.600

859.750

851.150

863.800

863.100

852.850

858.450

861.650

858.300

861.750

853.300

854.650

853.150

851.800

861.100

855.700

859.450

858.250

853.850

858.650

860.550

857.550

854.400

852.700

859.600

851.650

860.850

861.700

857.600

856.250

862.000

854.100

858.950

862.600

853.050

860.950

863.650

852.450

851.100

855.550

856.900

855.900

855.250

856.500

783.250

791.850

790.850

793.950

797.750

805.250

789.150

784.050

799.250

788.550

802.850

800.150

783.950

785.650

804.950

787.050

781.450

781.150

783.550

780.050

780.750

782.450

USA STANDARD

5

798.950

788.650

788.950

790.250

801.250

792.150

805.550

804.050

781.750

786.750

803.150

787.250

780.450

801.350

785.250

804.450

799.450

796.350

794.250

797.650

782.850

800.950

795.750

782.150

802.150

793.850

12

0

CH

GP

EUROPE STANDARD

852.650

851.950

851.050

0

854.700

851.850

851.700

1

857.100

853.100

852.150

2

851.550

853.800

852.950

3

858.700

858.050

851.400

4

856.800

855.050

852.050

5

858.400

856.350

853.950

6

859.550

856.000

854.350

7

859.100

862.900

853.650

8

860.500

854.950

851.250

9

860.100

855.300

852.550

A

852.800

857.750

852.300

B

859.800

854.850

853.250

C

854.150

855.800

855.600

D

858.900

856.650

853.450

E

852.900

857.500

857.250

F

6