BIGFUN BF-420 User manual

BIGFUN
MANUAL
ELECTRONIC KEYBOARD
ITEM NO.: BF-420
IMPORTANT NOTICE FOR SAFTY USE
Please read below information before use.
1. This product is not including power adaptor. It is shared the adaptor with
your mobile phone which specification should be INPUT: 100-240V-
50/60Hz OUTPUT ：DC 5V, electricity should be 1000mA or above. The
adaptor to be used with this product should be regularly examined for
potential hazard, such as damage to the cable or cord, plug, enclosure of
other parts. In the event of such damage, this product must not be used
until the damage had been properly removed.
2. This product is including USB cable. If users choose other USB cables,
please check carefully if there’s any damage on it. The mobile phone
original USB cable and adaptor are recommended to use with this product.
Inferior USB cable and adaptor will bring noise and other potential hazard
when you play this keyboard.
3. This product is not suitable for children under 3 years old.
4. Do not play the music aloud for a long time. Too loud music will hurt your
hearing.
5. Do not place this product in below locations; otherwise it may cause fire or
electric shock.
• Humid or dusty place
• Kitchen or place that have lamp black
• Near air conditioner, electric blanket, exposed under the sunlight or any
other place would warm this keyboard up.
6. Do not put this product near TV, Radio or beside other electronic product
which may cause audio or video receiving interference.
7. Unplug the adaptor before cleaning this product or when you are not using it
for a long time.

Illustration
1. Power on/off
2. Tones
3. Volume + -
4. Drum combination / Animal sound
5. Stop
6. Demo A
7. Demo B
8. Record
9. Program
10.Play
11. Tempo
12. Rhythm
13.DC 5V Micro-USB port
CHOICE OF POWER SUPPLY
1. DC adaptor: only use DC adaptor with USB connector which voltage
output should be DC 5V, electricity should be 1000mA or above. Use other
voltage adaptor may cause malfunction.
2. Computer: only connect to USB with voltage output DC 5V, electricity
should be 1000mA or above. Use other voltage computer USB may cause
malfunction.
TURN ON FOR PLAYING
Choose one of the above power supplies and connect the USB cable with the
keyboard. Press the power on/off button and play any white or black keys, if
there’s a piano rings up, the keyboard works.
Sleep function:
1. When the keyboard is not playing more than 3 minutes, it will
automatically enter the sleep function.
2. To wake it up, press any white or black keys.
HOW TO PLAY
1. Demos
A. Press DEMO A , it will play 11 demos in sequence. The song will replay
when it is finished. If you want to stop, then press STOP button.
B. Press DEMO B, it will play 11 demos randomly. If you want to stop, then

press STOP button.
2. Volume Control
Press + or – button to adjust the volume.
3. Tempo Control
Press + or – button to adjust the tempo.
4. Tone
The factory setting tone is piano. There’re totally 8 tones for you, just press
T1 to T8 to choose.
5. Rhythm
There’re totally 8 rhythms for you, just press R1 to R8 to choose.
6. Drum combination
There’re 4 percussions with 4 different buttons.
7. Drum/Animal sounds exchange
There’re 4 kinds of animal sounds: dog, frog, duck and bird. Press this key
to enter the animal sound mode.
8. Record
Press REC button and you can record the music you play.
9. Play
Press PLAY button to play the music you just recorded.
10.Program
Press PROG button to enter this mode, and press the percussion buttons
to record your own percussions. Please record 16 percussions by one time.
Pay attention: if pressing less or more than 16 percussions, the program
record won’t be active. And press PLAY button to play the sound you
program.
11. Stop
Under the mode of RHYTHM, PLAY, DEMO A/B/C, press STOP to stop the
playing.

Common problems and solutions
Problem
Solution
No sound after pressing
the power on/off
Check the DC adaptor is correctly plugged in
or not.
Check the USB cable is correctly or tightly
plugged in by both ends.
The keyboard stops
during playing.
Check if the power supply is disconnected.
Check if the USB cable is disconnected by
either one end, or improperly plugged.
Operation notice:
1. This product should not be placed near these accessories, such as radio,
television, tuner to avoid the mutual interference when receiving audio or
video while using.
3. Please use the nearest power socket , so that you can unplug the adaptor
immediately when malfunction or other necessary events happened.
4. Please unplug the adaptor if not using for a long time.
5. Please do not tear down the inner parts or remake this product. This
product is not including any parts which can be remained by users. If
anything unusual , please stop using .