Nissindo LX-2020 G2 User manual

Model: LX-2020 G2 Dual Hand-held
VHF Wireless Microphone System
Installation and Operation
Model: LX-2020 G2 Dual Hand-held
VHF Wireless Microphone System
Installation and Operation
This wireless system may operate on some VHF
frequencies that are not authorized in your area.
Please contact the relevant governmental
department in your country to obtain information
on the authorized VHF frequencies for the
wireless system in your area.
2-in-1 Base Receiver Module with 2 Wireless Microphones System
MANUAL
PO WER
2- i n -1 B ase Re c e i v er Mod u le with
2 Wir e l e ss Mic r o phone s S y s t e m
PO WER
RF
AF
AF
RF
MI C 2 VO LU ME
MI C 1 VO LU ME

CONTENTS
INTRODUCTION................................................................................ 1
SYSTEM FEATURES.............................................................................1
PACKAGE ACCESSORIES...................................................................2
2-in-1 BASE MODULE........................................................................ 3
• Controls and Functions................................................................. 3~4
• Hardware Setup..................................................................................5
HAND-HELD MICROPHONE..............................................................6
• Controls and Functions...................................................................... 6
OPERATION...................................................................................... 7
• How to Insert/change Batteries of Microphone............................7
• How to Turn On/Off Microphone................................................... 8
• How to Interchange Microphone Head..........................................8
TECHNICAL SPECIFICATION.............................................................. 9
BODY-PACK MICROPHONE (Optional).......................................10~11
TROUBLESHOOTING..................................................................12~13
APPENDIX....................................................................................... 14
WARRANTY.....................................................................................15
CONTACT INFORMATION...............................................................16
hand-held
Base Module
Features
Package
Operation
Intro
Spec
Appendix
Warranty
Troubleshooting
Body-Pack
Contact Us

1
INTRODUCTION
The Nissindo engineering team created the VHF Wireless microphone model
LX-2020 and introduced it into the market worldwide 13 years ago. It is a classic.
So this year we decided to introduce the next generation: the LX-2020 G2. We
hope the consumers will benefit from our improvements and upgrades.
The VHF Wireless microphones LX-2020 G2 give a more comfortable feel to
the vocal music industry. Nissindo specializes in Karaoke singing and
affordable for the user, with a balanced XLR output for each channel and also
has unbalanced mixed channels out from the receiver of our new LX-2020 G2.
With years of experience designing wireless microphone system, we at
Nissindo understand the problem with short battery life. Through intensive
research we have developed a better power management system to help
extend our wireless microphone battery life. Now equipped with AA size
battery casing the LX-2020 G2 allows for more user friendly functions resulting
in longer lasting performances. Material used on the microphones allows an
easy grip handling and now have a power slider equipped with a LED that
indicates when battery is running low.
It is simply the best solution for home and professional karaoke performance.
SYSTEM FEATURES
1. Equipped with wireless technology and VHF dual-channel in a 2-in-1 Base
Module to pick up weak signals and prevent signal interference
2. PLL pilot circuit design
3. Fixed frequency
4. Dynamic cartridge, bright and clear sound, long receive distance
5. Receiver distance in 80m
6. Clear voice delivering crystal clearer sound just like a wired microphone.
7. Light weight mounting design for portability
8. Adjustable antennas for better signal receiving
9. AA batteries for easy usage.
Features
Intro

PACKAGE ACCESSORIES
The package comes with one 2-in-1 Base Module [Receiver], two handheld
microphones, one DC adaptor, one unbalance audio cable, and four AA
batteries.
Package
AUDIO CABLE (FOR MIXED OUTPUT): 1 UNIT
For better quality connections, a XLR
to XLR cable is highly recommended.
Recommend
DC POWER ADAPTOR: 1 UNIT
DC-POWER USAGE: This wireless
microphone system is designed specifically
for the North American market, which uses
120V for DC power. For usage in Asia or
Europe, please change it to 220V by an
adaptor with DC 14V output 500mA.
NOTE
2
2-IN-1 BASE MODULE [RECEIVER]: 1 SET
PO WER
2- i n -1 B ase Rec e i v e r Modu l e w i t h
2 Wir e l e ss Micr o p hones Sy s t e m
PO WER
RF
AF
AF
RF
MI C 2 VO LU ME
MI C 1 VO LU ME
HANDHELD MICROPHONE: SET of 2
AA
ALKALINE
BATTERY
AA
ALKALINE
BATTERY
AA
ALKALINE
BATTERY
AA
ALKALINE
BATTERY
AA (1.5V) BATTERY: 4 UNITS

MODEL NO.: LX-2020 G2
CALIFORNIA, UNITED STATES OF AMERICA
E- m ai l: sa l es @ni s si n do u sa. com
ww w. NI SSIND OU SA. c om
EN GI NEERE D AN D DES IG N IN U.S. A.
SE RI AL NO .
DC -P O W ER
DC 12.5–18.OV
362141103400
POW ER
ON
OF F
BA L A N CED MIC OUTUNBALANC ED
RI SK OF E LE CT RI C SH OC K
2-in-1 BASE MODULE [RECEIVER]
CONTROLS AND FUNCTIONS
FRONT PANEL:
1. MIC 1 VOLUME CONTROL: Controls Microphone 1 volume.
2. MIC 1 POWER INDICATOR: Lights up when receiver is powered ON.
3. MIC 1 RF INDICATOR: Lights up when microphone is powered ON.
4. MIC 1 AF INDICATOR: Lights up when receive signal from microphone.
5. MIC 2 AF INDICATOR: Lights up when receive signal from microphone.
6. MIC 2 RF INDICATOR: Lights up when microphone is powered ON.
7. MIC 2 POWER INDICATOR: Lights up when receiver is powered ON.
8. MIC 2 VOLUME CONTROL: Controls Microphone 2 volume.
REAR PANEL:
9. MIXED OUTPUT: unbalanced 1/4" audio output.
10. BALANCED OUTPUT: balanced XLR audio output.
11. POWER BUTTON: Turns the system ON/OFF.
12. POWER SUPPLY: Removable adapter with DC12.5~18V 200mA.
Base Module
3
POWER RF AF AF RF POW ER
MIC 1 VOL UME
0 20
12
14
16
18
8
10
2
4
6
MIC 2 VOL UME
0 20
12
14
16
18
8
10
2
4
6
2-in-1 Base Re ceiver Mo dule with
2 Wirele ss Microp hones Sys tem
POW ER RF AF AF RF POWER
MIC 1 VOLUME
0 20
12
14
16
18
8
10
2
4
6
MIC 2 VOLUME
0 20
12
14
16
18
8
10
2
4
6
2-in-1 Base Receiver Module with
2 Wireless Microphones System
1 82 76543
9 10 11 12

MODEL NO.: LX-2020 G2
CALIFORNIA, UNITED STATES OF AMERICA
E- m ai l: sa l es @ni s si n do u sa. com
ww w. NI SSIND OU SA. c om
EN GI NEERE D AN D DES IG N IN U.S. A.
SE RI AL NO .
DC -P O W ER
DC 12.5–18.OV
362141103400
POW ER
ON
OF F
BA L A N CED MIC OUTUNBALANC ED
RI SK OF E LE CT RI C SH OC K
4
XLR
Balanced Input
XLR
Balanced Input
XLR
Balanced Input
XLR
Balanced Input
1/4"
Unbalanced Input
1/4"
Unbalanced Input
1/4"
Unbalanced Input 1/4"
Unbalanced Input
HARDWARE SETUP
HOW TO CONNECT AUDIO OUTPUT:
There are two rear outputs as shown in the below diagram:
MIXED OUTPUT is unbalanced audio output for MIC 1 & MIC 2 using 1/4”
connection. When using this output, MIC 1 and MIC 2 have to share a signal.
To produce different effects on each microphone, MIC 1 and MIC 2 need their
own signals which can be done by using XLR connections.
BALANCED OUTPUT is balanced audio output for MIC 1 & MIC 2 using XLR
connection.
UHF WIRELESS SYSTEM DIAGRAM:
Set Up
We highly recommend using balanced XLR connections if the distance between the
microphone receiver and the mixer is more than 10 feet. The grounding of the balanced XLR
connection delivers better quality signal by reducing noise.
Recommend
BALANCED CONNECTION
MODEL NO.: LX-2020 G2
CALIFORNIA, UNITED STATES OF AMERICA
E- m ai l: sa l es @ni s si n do u sa. com
ww w. NI SSIND OU SA. c om
EN GI NEERE D AN D DES IG N IN U.S. A.
SE RI AL NO .
DC -P O W ER
DC 12.5–18.OV
362141103400
POW ER
ON
OF F
BA L A N CED MIC OUTUNBALANC ED
RI SK OF E LE CT RI C SH OC K
MIXED OUTPUT
(MIC 1 & 2 UNBALANCE)
2
MIC 1 & 2 BALANCED OUTPUT (BALANCED XLR)
1
AUDIO MIXER AMPLIFIER OR A KARAOKE UNIT INPUT TERMINAL
REAR VIEW
MIC 1 HANDHELD MICROPHONE MIC 2 HANDHELD MICROPHONE

5
HOW TO CONNECT DC-POWER:
For North America Market, use 120V, DC 12.5~18V 200mA adaptor. For
market outside North America, use 220V~ 240V DC adaptor with a maximum
battery capacity of 200mA.
OPTIONAL 19” RACK MOUNT KIT:
To put the system onto a mount-kit, please follow the diagram below. Our
special design feature allow it to be mounted on a DJ rack.
NOTE
Please make sure to use the right DC adaptor. Otherwise, it may damage the 2-in-1 Base
Module because their maximum battery capacity is different. The product warranty will be voided
if there is damage caused by using the wrong DC adaptor.
ANTENNA IS ADJUSTABLE
REAR VIEW
MODEL NO.: LX-2020 G2
CALIFORNIA, UNITED STATES OF AMERICA
E- m ai l: sa l es @ni s si n do u sa. com
ww w. NI SSIND OU SA. c om
EN GI NEERE D AN D DES IG N IN U.S. A.
SE RI AL NO .
DC -P O W ER
DC 12.5–18.OV
362141103400
POW ER
ON
OF F
BA L A N CED MIC OUTUNBALANC ED
RI SK OF E LE CT RI C SH OC K
19 inches
13.8 inches
Rack mount kit is not included in package.

6
Hand-held
HANDHELD MICROPHONE
CONTROLS AND FUNCTIONS
1. INTERCHANGEABLE MICROPHONE HEAD
2. POWER INDICATOR
3. POWER ON/OFF SWITCH BUTTON: Push the power switch to turn
ON/OFF the microphone.
4. BATTERY SLOTS: Insert 2x1.5V AA battery or 2x1.2V rechargeable battery.
1 2 3
AA 1.5V
AA 1.5V
AA
ALKALINE
BATTERY
AA ALKALINE
BATTERY
4

AA 1.5V
AA 1.5V
7
OPERATION
HOW TO INSERT/CHANGE BATTERIES OF MICROPHONE
STEP 1: Twist open battery cover.
STEP 2: Use one hand to hold onto the top of the Microphone, and the other
hand to slide 2x1.5V AA batteries into battery slot. Be careful not to drop
Microphone while inserting batteries.
STEP 3: Twist back battery cover.
AA
ALKALINE
BATTERY
Good
AA
ALKALINE
BATTERY
AA ALKALINE
BATTERY
No Good
AA
ALKALINE
BATTERY
AA
ALKALINE
BATTERY
No Good
AA ALKALINE
BATTERY
AA ALKALINE
BATTERY
Make sure to follow the polarity of the battery according to the battery slots.
AA 1.5V
AA 1.5V
AA 1.5V
AA 1.5V
Operation

8
HOW TO TURN ON/OFF MICROPHONE
Push the power switch to turn ON/OFF the microphone.
If the microphone cannot be turn on, please check the
battery. It may be very low. Typical new full battery life is 4~6 hours
with our system, otherwise, the batteries might be defective or near
expiration date.
NOTE
HOW TO INTERCHANGE MICROPHONE HEAD
1
2
INTERCHANGEABLE
MICROPHONE HEAD
Replacement parts (such as the
microphone head as shown on
the left) can be purchased from
any of our authorized dealers.
NOTE

9
TECHNICAL SPECIFICATION
A. TECHNICAL FEATURE OF THE 2-IN-1 BASE MODULE:
1. Frequency Range: VHF 216~270 MHz
2. Frequency Stability: +/-0.005%
3. Image Interfere Rate: >80dB
4. S/N Ratio: >105dB (1Khz)
5. Sensitivity: -107dBM
6. Audio Output Impedance: 600Ω
7. Audio Output Level: -12dB
8. Audio Output Level: Unbalanced Out: 0~+/-400mV
Balanced Out: 0~+/-200mV
9. Power Supply: DC 12.5~18V/200mA, AC 120V (For 220V, you may need
to change to a 220V~240V DC adaptor)
10. Receiver Dimensions (WxHxD): 8.7 x 1.6 x 5.1 (inches) / 22 x 4 x 13 (cm)
11. Package Dimensions (WxHxD): 15 x 11.8 x 2.4 (inches) / 38 x 30 x 6 (cm)
12. Shipping Weight: 3 lbs / 1.4 kg
B. TECHNICAL FEATURE OF THE MICROPHONE:
1. Frequency Preparation: PLL
2. Frequency Stability: +/-0.005%
3. Image Interfere Rate: >/=102dB
4. Frequency Response: 30Hz~18kHz
5. S/N Ratio: <-60dB
6. RF Output: 10mW
7. Current: <100mA
8. Battery Voltage: 2 x AA 1.5V Alkaline Battery
9. Continuous Using: 8 Hours (GP) 2 x AA 1.5V Battery
10. Microphone Dimensions (WxH): 9.5 x 2.2 (inches) / 24 x 5.5 (cm)
C. THIS SYSTEM INCLUDES THE FOLLOW:
• 2-in-1 Base Module: 1 Set
• DC-Power Adaptor: 1 Unit
• Audio Cable: 1 Unit
• Handheld Microphone: 2 Sets
• AA 1.5V Battery: 4 Units
• Instructional Manual: 1 Unit
Spec

10
BODY-PACK MICROPHONE SYSTEM
SPECIFICATION (Optional)
NAMES & FUNCTION:
Body-Pack Microphone System (including Lavalier Mic. and Headset Mic.)
Optional
Side-face
Picture
Apical Panel
1. Antenna Jack
2. Power/Mute indicator
3. Power Switch
4. Microphone Input Jack
1 2 3 4
Body-pack Microphone Top View
Optional
Headset Mic.
(Accessories)
1/4” to mini 3-pin lavalier cable
Lavalier Mic.
(Accessories)
1/4” to mini 3-pin lavalier cable
Optional
Outside Picture
1. Antenna
2. 4-pin Microphone Input Jack
3. LCD Digital Display
4. IR Port: Receives infrared beam
to synchronize frequencies. IR
when using multiple systems,
only one microphone port should
be exposed at a time
5. Battery Cover
6. Tie-Clip
7. Microphone Extension Jack
Inside Picture
1. Power/Mute indicator
• Green: Ready
• Amber: Mute Open
• Flashing Red: IR is transmission in
process
• Glowing Red: Low battery power
• Pulsing Red: Battery dead
(microphone cannot be turned off
until batteries are changed)
2. Power ON/OFF/mute switch
Button: Press and hold the
microphone for 3 seconds to turn
power ON/OFF. Press and
release to mute or un-mute the
microphone.
3. Adjustment switch
4. Battery Slot
7
1
2
3
4
5
6
Optional
2
1
4
3
Optional
Body-Pack

11
HOW TO INSERT BODY-PACK MICROPHONE BATTERIES
HOW TO WEAR BODY-PACK MICROPHONE
The microphone can be buckled to the belt or the guitar band. For best result,
the microphone should be pushed down until the belt is close to the base of
microphone.
ADJUSTMENT GAIN
Three gain settings are available.
Choose the appropriate setting for your
instrument.
• MIC: for the microphone adjustment
• 0: Guitar with passive pickups
• -10: Guitar with active pickups
MICROPHONE BODY-PACK
REAR VIEW
A
AA ALK ALINE
BATTERY
AA
ALKALINE
BATTERY
AA ALKALINE
BATTERY
Good
CLOSE
OPEN
STEP 1: Open battery cover.
STEP 2: Insert 2 AA batteries. 2
alkaline batteries are expected to
use for about 8 hours.
Make sure that you insert batteries
correctly, as shown in picture. When
the microphone body-pack light
glows red, the batteries should be
changed immediately.
12
MICROPHONE BODY-PACK
REAR VIEW
B

12
TROUBLESHOOTING
CAUTION: Before troubleshooting any symptoms make sure the
equipments are in the “OFF” position.
1. SYMPTOM: NO SOUND COMING FROM MICROPHONE
A. CAUSE: There is no indication of signal.
a. Turn microphone to “OFF” position. Check if batteries are inserted correctly.
b. If batteries are inserted correctly, but there is no power, insert new batteries.
c. The volume may be turned to a low level.
B. CAUSE: The receiver is unpowered.
Make sure the power adapter is connected properly and there is power
coming from the power outlet.
C. CAUSE: There is no indication of AF signal.
Turn off the receiver and make sure it is properly connected to the mixer or
amplifier. If it is, slowly turn the volume higher.
D. CAUSE: There is no indication of RF signal.
If there is no indication of RF signal there may be interference between the
receiver and the microphone. Change the channel between the microphone
and receiver otherwise; Adjust the antenna of the receiver and/or move away
objects between receiver and the microphone .
2. SYMPTOM: ONE OR MORE OF THE MICROPHONE IS NOT WORKING,
CHECK THE SOLUTIONS FOR CAUSES A~D ABOVE.
3. SYMPTOM: RANDOM NOISE COMING OUT FROM MICROPHONE
CAUSE: There are interference within your area.
Stand further away from your speaker.
Troubleshooting

13
4. SYMPTOM: THE MICROPHONE SUDDENLY HAS NO SOUND AND THE
RECEIVER LCD LIGHT IS OFF.
Make sure the AC power adapter is securely plugged into the electrical outlet
and into the DC input connector on the rear panel of the receiver. Make sure
the AC electrical outlet works and is supplying the proper voltage.
5. SYMPTOM: THE MICROPHONE SUDDENLY HAS NO SOUND BUT THE
RECEIVER SHOWS RF SIGNAL.
CAUSE: The microphone out lead is damaged or disconnected.
To fix it, open the microphone head cover to check on the microphone out
lead and re-connect the wire by wielding. If it does not work, replace the
microphone out lead.
6. SYMPTOM: THE MICROPHONE DISTORTION LEVEL IS INCREASING
GRADUALLY.
CAUSE: The microphone batteries are running out.
Replace the microphone batteries.
7. SYMPTOM: POOR SIGNAL
CAUSE: When the 2-in-1 Base Module and microphone are placed in different
rooms made of concrete wall. This would cause poor signal.
Your audio equipment is close to the police, fire or radio stations.

14
APPENDIX
LX-2020 G2 FCC FREQUENCY: 216.000~270.000 MHz
VHF Frequencies Available for Use for Home Electronics in North America
The RF radio frequencies used in the transmission of wireless information are
closely regulated in most countries including North America. A lot of countries
strictly enforce their regulations stating which RF frequencies are available for
use for certain device, so it can help limit the amount of radio frequency
interference in all wireless communications.
FCC Information to User for Reference
This equipment is designed in compliance with the limits for a Class A digital
device pursuant to part 15 of the FCC Rules from the United States of America.
These limits are designed to provide protection against harmful interference
when the equipment is operated in public environment. This equipment
generates, uses, and can radiates radio frequency energy and, if not installed
and used in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this equipment in a
residential area may cause harmful interference, so the user will have to correct
the interference at his/her own expense.
Appendix

15
WARRANTY
One-Year Limited Warranty for Home Use Equipment
Our one-year warranty applies to speakers, amplifiers, mixers and microphones for
home use only. It covers both parts and labors. The warranty becomes effective on
the date of your purchase.
Our warranty only covers defects due to product defectiveness with free of defects
in materials or workmanship. However, our warranty does not cover defects due to
normal wears, damage in transit, improper use, abuse or failure to follow the proper
instructions for maintenance. This warranty is void in the event of unauthorized
repairs, alternations, modifications and removing of the product label.
Please also note that our warranty does not cover any shipping cost for the return of
defective products to us for inspection, repair and maintenance. Our warranty for
Nissindo products can only be executed in North America.
Our warranty does not cover the battery for wireless microphone products.
90-Day Limited Warranty for Public and Commercial Use Equipment
Our 90-day warranty applies to speakers, amplifiers, mixers and microphones for
both public and commercial use such as restaurant, coffee shop, KTV nightclub,
church and school, etc. It covers both parts and labors. The warranty becomes
effective on the date of your purchase.
To Register Your Warranty
Please submit the warranty card that cames with your unit; it is also download on
our website. However, we need the invoice for your purchase in order to process
this warranty. You may also register your warranty online. Please visit our website at
www.NissindoUSA.com.
PRECAUTION
1. If using more than one microphone system, please select the operating
frequency or signal channel carefully so as to avoid disturbing.
2. The input power voltage of the 2-in-1 Base Module is 110V/120V (±10%). If it is
too low or too high, it will affect the work of the machine.
3. When installing batteries, reversing the electrode will damage the machine.
NOTE
Caution: To reduce the risk of electrical shock, do not
remove the cover (or back). No user serviceable parts
inside: refer servicing to qualified personnel.
Warning: To reduce the risk of fire or electrical shock,
do not expose this appliance to rain or moisture.
RISK OF ELECTRIC SHOCK
DO NOT OPEN
This symbol, wherever it appears, alerts
you to the presence of uninsulated
dangerous voltage inside the enclosure
voltage that may be sufficient to
constitute a risk of shock.
This symbol, wherever it appears, alerts
you to important operating and
maintenance instructions in the
accompanying literature. Read the
manual.
Warranty

16
CONTACT INFORMATION
MAILING ADDRESS
NISSINDO
29300 Kohoutek Way #150
Union City, CA 94587
U.S.A.
TELEPHONE NUMBERS
USA Region
USA Toll Free: 1-800-318-2218
Sales & Marketing: 510-477-9955
Customer Service: 510-477-9955
FAX NUMBERS
USA Region
Sales & Marketing: 510-477-9922
Customer Service: 510-477-9922
WORLD WIDE WEB
E-mail: [e-mail]
Website: w ww.NissindoUSA.com
Contact Us

NISSINDO is a leader in the Audio and
Karaoke equipment industry. We are committed
to offering you high quality audio products.
Unlike any others brand, we deliver the best
cost and value to you directly. For the latest
update information including operation
manuals, installation instructions, hook-up
diagram and other new technologies updates
etc. please visit us at our website
w w w.N iss ind ou sa. com .
Comments to
29300 Kohoutek Way #150
Union City, CA 94587 U.S.A.
E-mail: [e-mail]
Website: www.nissindousa.com
Printed on 100% Recycled Paper Design and Engineered in U.S.A. Copyright © 2015 NISSINDO USA. All rights reserved. Legal trademark.
362141103400

17
MAINTENANCE
NOTE