RockJam RJ-761 Multi-function Keyboard User Guide

Important Information

Please adhere to the following information to prevent harm to yourself or others, and to avoid damage to this instrument or other external equipment.

Power adapter ?

Do not open the body of the electronic keyboard ⚠️

Use of the electronic keyboard

Maintenance

Connection

During operation

Specification

Controls, Indicators and External Connections

Front Panel

The front panel features speakers, an LCD screen, and various control buttons. The numbered controls are:

External Connections

The rear panel includes the following connection jacks:

LCD Display

The LCD display provides information on the current mode, song, rhythm, and tempo. Key indicators include:

Preparation Before First Use

Power ?

Use of AC/DC power adapter

Use the provided AC/DC power adapter (DC 12V output voltage, 1,000mA output current with a centre positive plug). Connect the adapter's DC plug into the keyboard's DC 12V power socket on the rear, then connect the other end into the mains wall socket and switch on. Unplug the adapter from the mains power socket when the keyboard is not in use.

Diagrams show power adapter connections for USA/Canada and UK mains sockets.

Battery operation

Open the battery lid on the underside of the keyboard and insert 6 x 1.5V Size D alkaline batteries. Ensure correct polarity. Replace the battery lid. Do not mix old and new batteries. Do not leave batteries in the keyboard if it will not be used for a long time to avoid damage from 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 automatically cut off when headphones are connected. Headphones with inline volume control are included.

Diagram shows a 3.5mm plug connecting to a headphone jack and headphones.

Connecting the sustain pedal ?

This keyboard has a 6.35mm socket for connecting a sustain pedal (included). Connect the pedal to this socket.

Diagram shows a sustain pedal connected to the sustain input.

Connecting an Amplifier or Hi-Fi Equipment

The keyboard has a built-in speaker system but can be connected to an external amplifier or hi-fi equipment. Turn off power to both the keyboard and external equipment before connecting. Use a stereo audio cable (not included) to connect the LINE IN or AUX IN socket on the external equipment to the keyboard's [PHONES] jack.

Diagram shows connection from keyboard [PHONES] jack to amplifier AUDIO INPUT JACK.

Connecting an iPad or Android device

Connect the keyboard to an Apple or Android device via the MIDI output to play music through an app. Connect a USB B type plug to the MIDI output at the back of the keyboard. USB cables for Android and Apple are not included. Android 6.0 and upwards are required for MIDI function. Recommended App: 'Simply Piano' by Joytunes (available from Google Play or Apple App Store).

Diagram shows USB B type plug connecting to MIDI port on keyboard and iPad/iPhone or Android device USB plug.

Connecting a phone or audio device to the AUX Input to play music through the keyboard

Use a stereo audio cable (not included) to connect your phone or audio device to the AUX IN socket on the back of the keyboard. Ensure the keyboard is switched on. Use the phone's volume control to manage the music volume.

Diagram shows a 3.5mm plug connecting to the AUX IN jack on the keyboard and another 3.5mm plug connecting to a smartphone.

Connecting a Laptop or PC

Connect the keyboard to a laptop or PC for use with MIDI software for recording and playback. Connect a USB B type plug to the MIDI output at the back of the keyboard and a USB A type plug to the PC or Laptop. USB cable for PC/Laptop connection is not included.

Diagram shows USB B type plug connecting to MIDI port on keyboard and USB A type plug connecting to a laptop.

Keyboard Operation

Power and Volume

Power control

Press the [POWER] button to turn the keyboard on or off. The LED indicates standby (blue) or power on (red).

Adjustment of the Master Volume ?

The keyboard has 16 volume levels (000-015). Adjust volume using the [MAIN VOLUME +/-] buttons. The volume level is shown on the LCD. Pressing both [MAIN VOLUME +/-] buttons simultaneously resets the volume to the default level (009). The main volume level is retained after power off and restored upon power on.

Tone

Tone Selection

The default TONE is '000' Grand Piano. To change the tone, press the [TONE] button, then enter the number code using the keypad (0-9) or use the +/- buttons. Refer to Appendix III for a list of available tones.

Effect & Control

Dual Tone Keyboard

Allows mixing two tones. Press the [DUAL / SPLIT] button to activate Dual Tone mode; the [Dual] indicator will appear. The first tone is the one previously selected. The second tone can be selected using the keypad (0-9). Press the [DUAL / SPLIT] button twice to exit Dual Tone mode.

Split Keyboard

Press the [DUAL / SPLIT] button until 'Split' appears on the LCD. The keyboard splits into two at the 24th key from the left. The TONE for the left-hand side can be selected via the keypad (0-9). The right-hand side TONE remains as previously set. In Split Keyboard mode, the pitch of the left-hand keys is raised by one octave. Press the [DUAL / SPLIT] button to exit Split Keyboard mode.

Diagram illustrates the split point and TONE 1 / TONE 2 areas.

Sustain and Sustain Pedal use ?

Touch the [SUSTAIN] button to enter Sustain mode (indicator shows [SUSTAIN] on). This prolongs the sound of each note played. Touching [SUSTAIN] again turns the feature off. For using the sustain pedal, ensure the sustain mode is switched OFF, then use the pedal to sustain individual notes.

Vibrato

Touch the [VIBRATO] button to enter Vibrato mode (indicator shows [VIBRATO] on). This adds a trembling effect to the end of each note played. Touching [VIBRATO] again turns the feature off.

Transpose

Use the [TRANSPOSE +/-] buttons to alter the musical scale by up to 6 levels upwards or downwards. Pressing both [Transpose +/-] buttons simultaneously resets the musical scale to 00. The transpose level resets to 00 after power off/on.

Metronome ?

Touch the [METRONOME] button to start the tick-tock beat. Four beats are available. Adjust tempo using [TEMPO +/-] buttons. Press [METRONOME] repeatedly to cycle through beat patterns. The LCD indicates the chosen beat. The metronome effect is added to music playback. Exit by touching [START/STOP] or [METRONOME].

Panel Percussion Instruments

When the [RE-PLAY/ PERCUSSION] button is pressed, the keyboard keys function as percussion instruments, indicated by 'Perc' on the LCD. Play accordingly to hear percussion sounds. Press [RE-PLAY/PERCUSSION] again to exit Percussion mode. Refer to Appendix I for a table of the 61 percussion sounds.

Rhythm

Selecting the rhythm

Choose from 200 built-in rhythms. Refer to Appendix II for the detailed rhythm table. Press the [RHYTHM] button to enter rhythm selection. The LCD displays the current rhythm number. Select a rhythm using the numerical keypad or the +/- buttons.

Start / Stop

Touch the [START / STOP] button to play or stop the rhythm playback.

Sync

Touch the [SYNC / FILL IN] button to select the sync accompaniment function. Pressing any of the first 19 keys on the left-hand side of the keyboard will start the rhythm playing. Touch [START / STOP] to stop the rhythm and exit sync function.

Fill in

Touch the [SYNC / FILL IN] button during rhythm playback to insert an interlude. The rhythm will continue as normal after the fill-in.

Accompaniment Volume Adjustment ?

Adjust accompaniment volume using the [ACCOMP VOLUME +/-] buttons. The LCD displays the volume level (10 levels, 000-009). Pressing both [ACCOMP VOLUME +/-] buttons simultaneously resets the accompaniment volume to the default level (006). The Main Volume also affects accompaniment output. Accompaniment volume resets to default on power on.

Tempo Adjustment

Use the [TEMPO +/-] buttons to adjust the playing tempo of the rhythm, metronome, and demo song. The range is 30-240 bpm. Pressing both [TEMPO +/-] buttons simultaneously reverts the tempo to the default for the selected rhythm. Tempo resets to 120 bpm on power on.

Chord Accompaniment

Single Finger Chords

Press the [CHORD] button to activate the single and multi-finger chord function. The LCD displays confirmation. Play chords by pressing keys in the chord area (keys 1-19) on the left-hand side. Finger patterns are shown in Appendix V. The played chord appears on the top left of the LCD. Press [START/STOP] to start or stop chord accompaniment.

Chord Tones

There are 4 types of chord accompaniment tones. To select, press the [CHORD TONE] button repeatedly during chord accompaniment. The LCD briefly shows the selected tone number (00-03).

Intro / Ending

Touch the [Intro / Ending] button to enable the intro section. After the intro, accompaniment shifts to the main section. Touch [Intro / Ending] again to enable the ending section. Auto accompaniment stops automatically when the ending finishes.

Recording Function

Press the [REC / PROGRAM] button to enter recording mode. The [Record] indicator appears on the LCD. Press any key to start recording. Maximum capacity is 118 notes. [FL] is shown when full. Pressing [REC / PROGRAM] again clears previous memory and re-enters record mode. Press [RE-PLAY] to play back recorded notes.

Rhythm Programming

Press [REC / PROGRAM] three times to activate Program mode. The [Program] indicator appears on the LCD. Play the keyboard to record a percussion track (up to 32 beats). Listen to playback by pressing [Re-Play / Percussion]. Adjust playback speed using [TEMPO +/-] buttons. Cancel Programming mode by pressing [REC / PROGRAM].

Demo Songs ?

Touch the [DEMO] button to play a demo song. The LCD shows [XXX DEMO]. Select songs using the +/- or number keys. There are 30 demo songs. The selected song plays and then repeats in loop mode. Touch [DEMO] again to exit. Refer to Appendix IV for a list of demo songs.

Setting Memories M1 and M2

The keyboard has two built-in memories for saving volume levels, rhythms, tones, and tempos. Select desired settings, then press and hold the [MEMORY] button. While holding [MEMORY], press [M1] or [M2] to save the settings. Access saved settings by pressing [M1] or [M2] before performing. Memories are retained after the keyboard is switched off and on.

Teaching Modes

Single Key Course

Touch the [TEACH] button to enter Single Key teaching mode. The LCD shows [Course 1]. This mode is suitable for beginners to learn rhythm and tempo. The LCD displays [XXX DEMO]. Select songs using +/- or number keys. The beat point flashes to indicate tempo. The keyboard plays the melody in time with key presses, even incorrect ones.

Synchronised Course

Touch the [TEACH] button twice to enter Synchronised teaching mode. The LCD shows [Course 2]. This mode is for more advanced users. The LCD displays [XXX DEMO]. Select songs using +/- or number keys. The beat point flashes to indicate tempo. The correct key to press next is displayed on the LCD. Play along, pressing and holding the correct keys as indicated.

Concert Course

Touch the [TEACH] button three times to enter Concert course teaching mode. The LCD shows [Course 3]. This mode is for more advanced users. The LCD displays [XXX DEMO]. Select songs using +/- or number keys. The beat point flashes to indicate tempo. The correct key to press is NOT displayed. Play along with correct key presses.

Progressive Learning

Follow this sequence to master songs:

Appendices

Appendix I. Percussion Instruments

No. Percussion Instrument No. Percussion Instrument No. Percussion Instrument
1C1 Click (Square Wave)21G#2 Hi-Hat Pedal41E4 Conga L
2C#1 Brush Tap22A2 Low Tom42F4 Timbale H
3D1 Brush Swirl23A#2 Hi-Hat Open43F#4 Timbale L
4D#1 Brush Slap24B2 Mid Tom L44G4 Agogo H
5E1 Brush Swirl W/Attack25C3 Mid Tom H45G#4 Agogo L
6F1 Snare Roll26C#3 Crash Cymbal 146A4 Cabasa
7F#1 Castanet27D3 High Tom47A#4 Maracas
8G1 Snare H Soft28D#3 Ride Cymbal 148B4 Samba Whistle H
9G#1 Sticks29E3 Chinese Cymbal49C5 Samba Whistle L
10A1 Bass Drum H Soft30F3 Ride Cymbal Cup50C#5 Guiro Short
11A#1 Open Rim Shot31F#3 Tambourine51D5 Guiro Long
12B1 Bass Drum L32G3 Splash Cymbal52D#5 Claves
13C2 Bass Drum H Hard33G#3 Cowbell53E5 Wood Block H
14C#2 Closed Rim Shot34A3 Crash Cymbal54F5 Wood Block L
15D2 Snare L35A#3 Vibraslap55F#5 Cuica Mute
16D#2 Hand Clap36B3 Ride Cymbal 256G5 Cuica Open
17E2 Snare H Hard37C4 Bongo H57G#5 Triangle Mute
18F2 Floor Tom L38C#4 Bongo L58A5 Triangle Open
19F#2 Hi-Hat Closed39D4 Conga H Mute59A#5 Shaker
20G2 Floor Tom H40D#4 Conga H Open60B5 Jingle Bell
61C6 Bell Tree

Appendix II. Rhythm Table

No.Rhythm NameNo.Rhythm NameNo.Rhythm NameNo.Rhythm Name
0008 Beat050Swing Beat100Jazz Samba150Soul Psychedelic 6
00116 Beat0518 Ballad101March 1151Classical ballad 1
002Soul 16 Beat052Step102March 2152Classical ballad 2
003Rock Beat053Big Band1103March 3153Classical ballad 3
004Pop 16 Beat054Big Band2104March 4154Classical ballad 4
005Soulbeat055Combo 1105Polka 1155Neo-Soul 1
006Soul 1056Combo 2106Polka 2156Neo-Soul 2
007Soul 2057Swing 1107Polka 3157Neo-Soul 3
008Soul 3058Swing 2108Country & W 1158Rock Soul 1
009Soul 4059Swing 3109Country & W 2159Rock Soul 2
010Soul 5060Swing 4110Bluegrass160Rock Soul 3
011Soul 6061Swing 5111Country 1161Rock Soul 4
012Slow Soul 1062Swing 6112Country 2162Rock Soul 5
013Slow Soul 2063Baiao113Country 3163Rock Soul 6
014Slow Soul 3064Bolero114Middle East164Folk Rock 1
015Funky Soul 1065Bossanova 1115China 1165Folk Rock 2
016Funky Soul 2066Bossanova 2116China 2166Middle Eastern Rock
017Funky Soul 3067Bossanova 3117China 316770's Rock
018Funky Soul 4068Bossanova 4118Thailand16880's Rock
019Funky Soul 5069Bossanova 5119Waltz 1169Heavy Metal Rock
020Funky Soul 6070Calypso120Waltz 2170Classic Rock
021West Coast071Habanera121Waltz 3171Rock Dance
022Euro Soul072Reggae 1122Waltz 4172Country Shuffle 1
02316 AOR 1073Reggae 2123Jazz Waltz 1173Country Shuffle 2
02416 AOR 2074Joropo124Jazz Waltz21748 Country Shuffle
02516 Beat 1075Tango 1125Jazz Waltz 3175Modern Lyric 1
02616 Beat 2076Tango 2126Country Waltz 1176Modern Lyric 2
02716 Beat 3077Tango 3127Country Waltz 2177Modern Lyric 3
02816 Ballad 1078Mambo 1128Punk Swing 1178Middle East pop
02916 Ballad 2079Mambo 2129Punk Swing 2179Euro Pop
030Pop Dance 1080Rhumba 1130Punk Swing 3180New Age Pop
031Pop Dance 2081Rhumba 2131Punk Swing 4181New Century
032Pop Dance 3082Rhumba 3132Punk Swing 5182House Dance 1
033Shuffle 1083Rhumba 4133Punk Swing 6183House Dance 2
034Shuffle 2084Rhumba 5134Oriental 16 Beat184Modern Orchestra 1
0358 Shuffle085Bequine135Soft 16 Beat 1185Modern Orchestra 2
036Hard Rock086Salsa136Soft 16 Beat 2186Euro Big Band
037Slow Rock 1087Merengue1137Soft 16 Beat 3187Jazz Big Band
038Slow Rock 2088Merengue213816 Chamber Pop 1188Bossanova Pop 1
039Pop Classic089Vallenato13916 Chamber Pop 2189Bossanova Pop 2
040Blues090Plena140Modern 16 Beat190Bossanova Pop 3
041Twist091Lambada141Classical 8 Beat191Bossanova Pop 4
042Hard 3 Beat092Bachata 1142Classical 16 Beat192Bossanova Pop 5
043Love Ballad 1093Bachata 2143Pop 3 Beat1938 Piano Blues
044Love Ballad 2094Bachata 3144Psychedelic194Habanera Blues
045Love Ballad 3095Samba 1145Soul Psychedelic 1195Country Blues
046Love Ballad 4096Samba 2146Soul Psychedelic 2196Big Beat
047Euro Beat097Pop Samba 1147Soul Psychedelic 3197Psychedelic Swing
048House 1098Pop Samba 2148Soul Psychedelic 4198Baiao Pop
049House 2099Pop Samba 3149Soul Psychedelic 5199Africa Bolero

Appendix III. Tone Table

No.Tone NameNo.Tone NameNo.Tone NameNo.Tone Name
000Acoustic Grand Piano050Synth Strings 1100FX 5 (Brightness)150Flute String
001Bright Acoustic Piano051Synth Strings 2101FX 6 (Goblins)151Synth Harmonica
002Electric Grand Piano052Choir Aahs102FX 7 (Echoes)152Synth Xylophone
003Honky-Tonk Piano053Voice Oohs103FX 8 (Sci-Fi)153Synth Violin
004Rhodes Piano054Synth Voice104Sitar154Synth Flute
005Chorused Piano055Orchestra Hit105Banjo155Synth Sax
006Harpsichord056Trumpet106Shamisen156Rhd Piano
007Clavichord057Trombone107Koto157Synth Dulcimer
008Celesta058Tuba108Kalimba158Muted String
009Glockenspiel059Muted Trumpet109Bagpipe159Rhd Horn
010Music box060French Horn110Fiddle160Synth piano
011Vibraphone061Brass Section111Shanai161Synth Guitar
012Marimba062Synth Brass 1112Tinkle Bell162Synth Accordian
013Xylophone063Synth Brass 2113Agogo163Synth Electric Guitar
014Tubular Bells064Soprano Sax114Steel Drums164Synth Electric Bass
015Dulcimer065Alto Sax115Woodblock165Synth Harp
016Hammond Organ066Tenor Sax116Taiko Drum166Synth String
017Percussive Organ067Baritone Sax117Melodic Tom167Synth Horn
018Rock Organ068Oboe118Synth Drum168Synth Piccolo
019Church Organ069English Horn119Reverse Cymbal169Bright Violin
020Reed Organ070Bassoon120Guitar Fret Noise170Stringed violin
021Accordian071Clarinet121Breath Noise171Xylophone & Violin
022Harmonica072Piccolo122Seashore172Electronic Violin
023Tango Accordian073Flute123Bird Tweet173Large Violin
024Acoustic Guitar (Nylon)074Recorder124Telephone Ring174Rhythm Orchestra
025Acoustic Guitar (Steel)075Pan Flute125Helicopter175Pizzicato Violin
026Electric Guitar (Jazz)076Bottle Blow126Applause176Pizzicato Ensemble 1
027Electric Guitar (Clean)077Shakuhachi127Gunshot177Pizzicato Ensemble 2
028Electric Guitar (Muted)078Whistle128Perc Board178Percussion Band
029Overdriven Guitar079Ocarina129Er Hu179Baritone Synth Contrabass
030Distortion Guitar080Lead 1 (Square)130Mandolin180Bass Flute
031Guitar Harmonics081Lead 2 (Sawtooth)131Piano Pad181Distortion Contrabass
032Acoustic Bass082Lead 3 (Caliope Lead)132Music Box Pad182Contrabass Lead
033Electric Bass (Finger)083Lead 4 (Chiff Lead)133Guitar Pad183Violin Lead
034Electric Bass (Pick)084Lead 5 (Charang)134Pan Flute Pad184Cello Lead
035Fretless Bass085Lead 6 (Voice)135Banjo Pad185Pizzicato Rhythm
036Slap Bass 1086Lead 7 (Fifths)136Bright Violin186High Harp
037Slap Bass 2087Lead 8 (Bass+Lead)137Bright String187Harp Ensemble
038Synth Bass 1088Pad 1 (New Age)138Bright Trombone188Synth Harp
039Synth Bass 2089Pad 2 (Warm)139Bright Recorder189Baritone Trumpet
040Violin090Pad 3 (Polysynth)140Bright Sax190Trumpet Ensemble
041Viola091Pad 4 (Choir)141Electric Piano191Rhythm Trumpet
042Cello092Pad 5 (Bowed)142Electric Guitar192High Trumpet
043Contrabass093Pad 6 (Metallic)143Electric Sax193Synth Trumpet
044Tremolo Strings094Pad 7 (Halo)144Electric Bass194Baritone Trombone
045Pizzicato Strings095Pad 8 (Sweep)145Electric Ahs195Trombone Ensemble
046Orchestral Harp096FX 1 (Rain)146Vibraphone String196Rhythm Trombone
047Timpani097FX 2 (Soundtrack)147Accordian String197High Trombone
048String Ensemble 1098FX 3 (Crystal)148Harmonica String198Baritone Trombone
049String Ensemble 2099FX 4 (Atmosphere)149Trombone String199Synth Trombone

Appendix IV. Demo Song Table

No.Name of SongNo.Name of Song
00Beautiful Prairie My Home15Liuyang River
01Rose Waiting For Love16Little Star
02Fascinated17Water Village In My Dream
03Hot dance Music18Cucurbit Flute
04Song Of Herding Sheep19Happy Birthday To You
05Passionate Music20Rhythm Of Rain
06Passionate21Five Hundred Miles
07Little Apple22Katusha
08The South Of Cloud23Doraemon
09Flower Fairy24Hungarian Dances
10Jingle Bells25Dream Wedding
11Entering A New Era26Heipanpo
12Butterfly Rain27Beethoven Sonata
13Place Of Flower in full bloom28Grand March
14I Only Care About You29Mozart Piano Sonatas

Appendix V. Troubleshooting ❓

ProblemPossible Reason / Solution ✅
A faint noise is heard when turning the power on or off.This is normal and nothing to worry about.
After turning the power on to the keyboard there was no sound when the keys were pressed.Check the master volume is set to the correct volume. Check that headphones or any other equipment are not plugged into the keyboard as these will cause the built-in speaker system to cut off automatically.
Sound is distorted or interrupted and the keyboard is not working properly.Use of incorrect power adapter. Use the power adapter supplied or the batteries may need replacing.
There is a slight difference in timbre of some notes.This is normal and is caused by the many different voice sampling ranges of the keyboard.
When using the sustain function some tones have long sustain and some short sustain.This is normal. The best length of sustain for different tones has been pre-set.
The main volume or accompaniment volume is not right.Check that the main (master) volume and accompaniment volume are set correctly. Note that the main volume also affects the accompaniment volume.
In SYNC status the auto accompaniment does not work.Check to make sure that Chord mode has been selected and then play a note from the first 19 keys on the left hand side of the keyboard.
The pitch of the note is not correctCheck that the transpose is set to 00.

Appendix VI. Chord Tables

Single Finger Chords

RootMm7m7
C