RockJam RJ540 User manual

RJ540 / RJ540-SK
RJ541 / RJ541-SK
RJ640 / RJ640-SK
RJ641 / RJ641-SK
Multi-function Keyboard
User Guide

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Important Information
Be sure to obey the following information so as not to harm yourself or others or damage this instrument
or other external equipment.
Power adapter:
• Please use only the specified DC adapter supplied with the product. An incorrect or faulty
adapter can cause damage to the electronic keyboard.
• Do not place the DC adapter or power cord near to any source of heat such as radiators or
other heaters.
• To avoid damaging the power cord, please ensure that heavy objects are not placed on it
and that it is not subject to stress or over bending.
• Check the power plug regularly and ensure it is free from surface dirt. Do not insert or
unplug the power cord with wet hands.
Do not open the body of the electronic keyboard:
• Do not open the electronic keyboard or try to disassemble any part of it. If the device is not
functioning correctly, please stop using it and send it to a qualified service agent for repair.
Use of the electronic keyboard:
•To avoid damaging the appearance of the electronic keyboard or damaging the internal parts
please do not place the electronic keyboard in a dusty environment, in direct sunlight or in
places where there are very high or very low temperatures.
•Do not place the electronic keyboard on an uneven surface. To avoid damaging internal parts
do not place any vessel holding liquid onto the electronic keyboard as spillage may occur.
Maintenance:
•To clean the body of the electronic keyboard wipe it with a dry, soft cloth only.
Connection:
•To prevent damage to the speaker of the electronic keyboard please adjust the volume of any
peripheral device to the lowest setting and gradually adjust the volume accordingly to an
appropriate level once the music is playing.
During operation:
•Do not use the keyboard at the loudest volume level for a long period.
•Do not use the headphones at loud volume for long periods as hearing damage could result.
•Do not place heavy objects onto the keyboard or press the keyboard with undue force.
•The packaging should be opened by a responsible adult only and any plastic packaging should
be stored or disposed of appropriately.
Specification
•Specifications are subject to change without notice.

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Contents
Important Information ................................................................................................................................... 1
Controls, Indicators and External Connections ............................................................................................ 4
Front Panel .............................................................................................................................................. 4
External Connections............................................................................................................................... 5
Display Screen......................................................................................................................................... 5
Preparation Before First Use ........................................................................................................................ 6
Power....................................................................................................................................................... 6
Use of DC power adapter: .................................................................................................................. 6
Battery operation:................................................................................................................................ 6
Jacks and Accessories ............................................................................................................................ 6
Using headphones: ............................................................................................................................. 6
Connecting an Amplifier or Hi-Fi Equipment:...................................................................................... 7
Connecting a phone or audio device to the AUX Input to play music through the keyboard: ............. 7
Connecting a Microphone: .................................................................................................................. 7
Stand Assembly....................................................................................................................................... 8
Keyboard Operation ..................................................................................................................................... 9
Power and Volume .................................................................................................................................. 9
Power control: ..................................................................................................................................... 9
Adjustment of the Master Volume:...................................................................................................... 9
Tone....................................................................................................................................................... 10
Tone Selection: ................................................................................................................................. 10
Effect & Control...................................................................................................................................... 10
Split Keyboard:.................................................................................................................................. 10
Sustain: ............................................................................................................................................. 11
Vibrato:.............................................................................................................................................. 11
Transpose: ........................................................................................................................................ 11
Metronome:....................................................................................................................................... 12
Panel Percussion Instruments: ......................................................................................................... 12
Keyboard Percussion:....................................................................................................................... 12
Rhythm .................................................................................................................................................. 13
Selecting the rhythm: ........................................................................................................................ 13
Start / Stop: ....................................................................................................................................... 13

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Sync: ................................................................................................................................................. 14
Fill in:................................................................................................................................................. 14
Accompaniment Volume Adjustment: ............................................................................................... 15
Tempo Adjustment:........................................................................................................................... 15
Chord Accompaniment .......................................................................................................................... 16
Single Finger Chords: ....................................................................................................................... 16
Fingered Chords: .............................................................................................................................. 16
Bass Chord: ...................................................................................................................................... 17
Chord Off: ......................................................................................................................................... 17
Recording Function................................................................................................................................ 17
Rhythm Programming............................................................................................................................ 18
Demo Songs: ......................................................................................................................................... 18
Teaching Modes .................................................................................................................................... 19
Beginner Course: .............................................................................................................................. 19
Intermediate Course: ........................................................................................................................ 19
Advanced Course: ............................................................................................................................ 20
Progressive Learning: ....................................................................................................................... 20
Appendix I. Percussion Instruments ........................................................................................................... 21
Appendix II. Rhythm Table ......................................................................................................................... 22
Appendix III. Tone Table ............................................................................................................................ 22
Appendix IV. Demo Song Table ................................................................................................................. 23
Appendix V. Troubleshooting ..................................................................................................................... 24
Appendix VI. Chord Tables......................................................................................................................... 25
Single Finger Chords ............................................................................................................................. 25
Fingered Chords .................................................................................................................................... 26
Appendix VII. Technical Specification......................................................................................................... 27
FCC Compliance Statement (USA) ............................................................................................................ 28
FCC Class B Part 15 ............................................................................................................................. 28
Product Disposal Instructions (Europe) ...................................................................................................... 28

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Controls, Indicators and External Connections
Front Panel
1. Stereo Speakers
2. Power Switch
3. Start / Stop
4. Sync
5. Fill In
6. Single Chords
7. Fingered Chords
8. Bass
9. Chord Off
10. Main Volume +/-
11. Accompaniment Volume +/-
12. Tempo [Fast/Slow]
13. Chord Volume +/-
14. Sustain
15. Vibrato
16. Mid Tom
17. Mid Snare
18. Closed Hi-Hat
19. Open Hi-Hat
20. Clap
21. Wood Block
22. Low Tom
23. Percussion
24. Demo One
25. Demo All
26. Teach 1
27. Teach 2
28. Teach 3
29. Split
30. Transpose -
31. Transpose +
32. Record
33. Metronome
34. Program
35. Play
36. Tones
37. Rhythm
38. Number Pad
39. Tones List
40. Display Screen
41. Rhythms list

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External Connections
Display Screen
LCD Screen - applies to models RJ541, RJ541-SK, RJ641, RJ641-SK
LED Screen - applies to models RJ540, RJ540-SK, RJ640, RJ640-SK
1. AUX IN (For Music
Playback)
2. MIC Input (For Electret
Microphone)
3. Headphone Output
4. DC 9V Power Input
1. TONE, RHYTHM or DEMO song
2. Tempo value of rhythm and song (bpm)
3. Metronome for rhythm and song
4. Mode Indicator 1
5. Sound Equalizer
6. Volume level display
7. Mode Indicator 2
8. Key Indicator
1. 3-Digit LED Display

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Preparation Before First Use
Power
Use of DC power adapter:
Please use the DC power adapter that came with the electronic keyboard or a power adapter with 9V DC
output voltage and 500mA output current with a centre positive plug. Connect the plug of the power
adapter into the DC 9V power socket on the rear of the keyboard and then connect the other end into the
mains wall socket and switch on.
USA / Canada UK
Caution: When the keyboard is not in use you should unplug the power adapter from the mains power
socket.
Battery operation:
Open the battery lid on the underneath of the electronic keyboard using a small cross head screwdriver
and insert 6 x 1.5V Size AA alkaline batteries. Ensure the batteries are inserted with the correct polarity
and replace the battery lid.
Caution: Do not mix old and new batteries. Do not leave batteries in the keyboard if the keyboard is not
going to be used for any length of time. This will avoid possible damage caused by leaking batteries.
Jacks and Accessories
Using headphones:
Connect the 3.5mm headphone plug into the [PHONES] jack on the rear of the keyboard. The internal
speaker will cut off automatically once headphones are connected. Headphones not included.

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Connecting an Amplifier or Hi-Fi Equipment:
This electronic keyboard has a built-in speaker system, but it can be connected to an external amplifier or
other hi-fi equipment. First turn off the power to the keyboard and any external equipment you are looking
to connect. Next insert one end of a stereo audio cable (not included) into the LINE IN or AUX IN socket
on the external equipment and connect the other end into the [PHONES] jack on the rear of the electronic
keyboard.
Connecting a phone or audio device to the AUX Input to play music through the keyboard:
This keyboard has a built-in speaker system that can be used to play music from your phone or mobile
device. Insert one end of a stereo audio cable into the AUX IN socket on the back of the keyboard and
connect the other end into your phone or audio device. Make sure the keyboard is switched on. Use the
volume control of the phone to control the music volume. AUX in cable not included.
Connecting a Microphone:
Connect the 3.5mm microphone plug into the [MIC] jack on the rear of the keyboard. Note that the
keyboard requires an electret or condenser microphone, not supplied.

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Stand Assembly
(Applies to models RJ540-SK, RJ541-SK, RJ640-SK, RJ641-SK that include a keyboard stand)
Please first assemble the stand using the screws and allen key supplied. The keyboard can then be
secured to the stand using the straps and screws connected to the top bars.

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Keyboard Operation
Power and Volume
Power control:
Press the [POWER] button to turn the power on and again to turn the power off. The screen display will
light to indicate power on.
Adjustment of the Master Volume:
The keyboard has 8 levels of volume. To change the volume, touch the [VOLUME +/-] buttons. The
volume level is indicated by the screen display. Pressing both the [VOLUME +/-] buttons at the same time
will make the main volume return to the default level 4. The main volume level will revert to level 4 after
power off and on. Note: When set to level 1 the speaker output is muted.