Trouble shooting
If a problem occurs, follow the steps in the table below. If problem still can't be solved, please contact your
retailer.
Problem
No sound when power
is turned on
Distorted sound
No sound from Karaoke
No sound from MP3
source
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.
Accordance with the requirements of the CE seriously
As to meet the requirements of environmental protection certification
Recycled products can be recycled
The product is suitable for indoor use
Battery warning!
The battery used in this product may present a risk of fire or chemical burn if mistreated.
•
•
Do not attempt to open the product or replace the battery. It is built-in and not changeable.
Use of other batteries may present a risk of fire or explosion and the warranty will be terminated.
•
Dispose of batteries according to local regulations. Please recycle when possible. Do not dispose as
household waste or in a fire as they may explode.
•
Batteries may explode if damaged.
Specification
Output Power ..................................................................................... 2 x 150W
Frequency range ........................................................................... 60HZ-20KHZ
VHF mic frequency ........................................................................... 203.6MHz
S/N Ratio .................................................................................................. 70DB
Sensitivity .................................................................................. 500mV+-50mV
Input Voltage ...................................................... AC110V-240V 50/60Hz+-10%
Weight ....................................................................................................... 25kg
Dimensions ...................................................................... 445 x 385 x 1125mm
©Copyright LOTRONIC 2016
Possible cause
1. The power cord is not connected
2. Faulty mains outlet
3. No input source
4. Volume set to minimum
1. Master volume is set too high
2. Damaged speaker
1. Microphone plug is not firmly
inserted
2. The microphone is not switched on
3. Microphone volume set to the
minimum
4. Battery in wireless mic is exhausted
1. Un supported file format
2. Illegal copy
3. USB/SD source not properly inserted
BOOST-STUPDJ
Solution
1. Connect the power cord
2. Use an outlet that receives power
3. Connect an input source
4. Set the volume to an appropriate level
1. Reduce the volume
2. Check if the speaker is damaged
1. Insert the mic firmly into the socket
2. Switch the microphone on
3. Increase the microphone volume
4. Replace the batteries
1. Change into MP3 format
2. Insert the USB/SD source properly
5