Operation Manual

Safety Precautions/ Usage Precautions

Safety Precautions

The use of an adapter other than the specified type may damage the unit and pose a safety hazard. Connect the AC adapter only to an AC outlet that supplies the rated voltage required by the adapter. When disconnecting the AC adapter from the AC outlet, always grasp the adapter itself and do not pull at the cable. If the unit is not to be used for a long time, disconnect the AC adapter from the outlet. Battery operation Use four IEC R6 (size AA) batteries (alkaline or manganese). The MRT-3 cannot be used for recharging. Pay close attention to the labelling of the battery to make sure you choose the correct type. If the MRT-3 is not to be used for an extended period of time, remove the battery from the unit. If batteries leakage has occurred, wipe the battery compartment and the battery terminals carefully to remove all remnants of battery fluid. While using the unit, the battery compartment cover should be closed.

Warning

In this manual, symbols are used to highlight warnings and cautions for you to read so that accidents can be prevented. The meanings of these symbols are as follows:
This symbol indicates Warning explanations about extremely dangerous matters. If users ignore this symbol and handle the device the wrong way, serious injury or death could result. This symbol indicates Caution explanations about dangerous matters. If users ignore this symbol and handle the device the wrong way, bodily injury and damage to the equipment could result.
Please observe the following safety tips and precautions to ensure hazard-free use of the MRT-3.

About power

Since power consumption of this unit is Caution Environment Avoid using your MRT-3 in environments fairly high, we recommend the use of an AC where it will be exposed to: adapter whenever possible. When powering Extreme temperature the unit from the batteries, use only an High humidity or moisture alkaline type. Excessive dust or sand AC adapter operation Excessive vibration or shock Be sure to use only an AC adapter which supplies 9 V DC, 300 mA and is equipped with a "center minus" plug (Zoom AD-0006).

ZOOM MRT-3

Handling

Caution

Usage Precautions
Since the MRT-3 is a precision electronic device, avoid applying excessive force to the controls. Do not operate the keys or controls with your foot. Take care that no foreign objects (coins or pins etc.) or liquids can enter the unit. Be sure to turn the power to all equipment off before making connections. Before moving the unit, turn the power off, and disconnect all cables and the AC adapter.

Electrical interference

For safety considerations, the MRT-3 has been designed to provide maximum protection against the emission of electromagnetic radiation from inside the device, and protection from external interference. However, equipment that is very susceptible to interference or that emits powerful electromagnetic waves should not be placed near the MRT-3, as the possibility of interference cannot be ruled out entirely. With any type of digital control device, the MRT-3 included, electromagnetic interference can cause malfunctioning and can corrupt or destroy data. Care should be taken to minimize the risk of damage.

Alterations

Never open the case of the MRT-3 or attempt to modify the product in any way since this can result in damage to the unit.

In Case of Trouble

If there seems to be a defect or a problem with the unit, immediately disconnect the AC adapter or remove the batteries to shut off the power. Then disconnect any other cables connected to the unit.

Cleaning

Use a soft, dry cloth to clean the MRT-3. If necessary, slightly moisten the cloth. Do not use abrasive cleanser, wax, or solvents (such as paint thinner or cleaning alcohol), since these may dull the finish or damage the surface.

Please keep this manual at hand for future reference.

Contents

Safety Precautions/ Usage Precautions 2 Introduction
Creating Songs (Song Mode)
What Is a Song? Recording Song Patterns

Names of Parts

Top Panel Rear Panel
Changing the Tempo Within a Song 36 Changing the Song Volume
Selecting a Dedicated Song Kit

Getting Connected

Connection Example 1 Connection Example 2
Checking the Amount of Remaining Memory for Songs 39 Copying a Song Deleting a Song

Preparations

Deleting All Songs

Using Batteries

Other Functions 42
Controlling the MRT-3 With a Foot Switch 42 Synchronizing Playback With an External Device 44 Playing MRT-3 Sounds From an External MIDI Component 46 Setting the Pattern/Song Playback Swing 47 Setting the Precount for Real-Time Recording 48 Returning the MRT-3 to the Factory Default Condition 49
Terms Used in This Manual Listening to the Demo Song
Playing the Pads (Manual Play) Using Patterns (Pattern Mode)

Playing a Pattern

Changing the Tempo of Pattern Playback 15 Real-Time Pattern Recording Pattern Step Recording
Changing User Pattern Resolution After Recording 21 Changing the User Pattern Length 21 Changing the User Pattern Beat Copying a Pattern Erasing a Single User Pattern Deleting All User Patterns
Troubleshooting Specifications Reference

Kit List

MIDI Note Number Chart Instrument List Pattern List
Creating Your Own Kit (Kit Mode) 26
Editing a User Kit Kit Items Copying a Kit

MIDI Implementation

MIDI Implementation Chart

Introduction

Thank you for purchasing the ZOOM Micro RhythmTrak MRT-3 (subsequently referred to as "the MRT-3"). Introduction The MRT-3 offers the following attractive features.
Sophisticated rhythm machine incorporates 199 super-realistic drum and percussion sounds in an amazingly compact body. A full 396 preset patterns contain a wide variety of preprogrammed rhythms. 99 additional patterns can be programmed and stored by the user. Create a backing sequence (song) with up to 99 patterns. As many as 99 such songs can be stored for immediate use at any time. Internally lit pads let you follow the rhythm pattern visually during song playback or when using a pattern. Choose up to 14 sounds from the built-in drum and percussion sources, and then adjust level, tuning, and panning individually to create your very own drum kit. This gives you the flexibility to realize your creative vision. Perfectly intuitive and simple design lets you master the unit right away, even if you have never used a drum machine before. Optional foot switch FS01 allows pattern start/stop control or tempo switching. You can also operate an assigned sound such as bass drum or open/closed hihat. MIDI IN connector allows use with an external MIDI sequencer or other device. The Multitrak Recording Studio ZOOM MRS-4 is an ideal match, letting you synchronize the audio tracks from the recorder with the rhythm track from the MRT-3. Playing the sounds of the MRT-3 with an external MIDI component is also possible.

2. 3. 4.

The MRT-3 can be powered from batteries (not supplied). Follow the steps below to insert the batteries.
Turn the unit over and open the battery compartment cover.

MRT-3 underside

Insert four fresh IEC R6 (size AA) batteries into the battery compartment. The use of alkaline batteries is recommended.
Four IEC R6 (size AA) batteries
Close the battery compartment cover.
When using batteries, a flashing dot at the right side of the display means that the batteries are nearly exhausted. Insert fresh batteries as soon as possible.
Terms Used in This Manual
This section explains some important concepts of the MRT-3. Pattern Playing a rhythm using sounds stored in the MRT-3 is called playing a pattern. The information stored in a pattern includes data such as pattern length, beat, and which kit (combination of drum/percussion sounds) is used. The patterns are organized in banks (A D, U) and numbers (01 99). The MRT-3 has 396 read-only preset patterns (A01 D99) and 99 read/write user patterns (U01 U99). Bank A

A01 A02 A03 A04 A98 A99

Pattern
Bank A Bank B Preset patterns Bank C Bank D User patterns Bank U
Song A song is a sequence of patterns played in subsequent steps. The maximum number of steps in a song is 99. Provided that there is free memory, the MRT-3 has the capability to store up to 99 songs. A song includes data such as pattern number, overall song tempo (master tempo), tempo change information, volume change information, dedicated kit information, etc.

Master tempo Kit number

Song 01 Song 02 Song 03

Pattern number

Song 98 Song 99
Kit The MRT-3 lets you select 14 sounds from the built-in drum and percussion sources to use for playing with the pads. A combination of such sounds, together with pad sensitivity information and level/tuning information for each pad is called a kit. The MRT-3 has a capacity for 70 kits. Kits are read-only preset kits and kits are read/write user kits. Pad/Pad Bank Each pad on the MRT-3 can be used to play the currently selected sound, and to record it as a phrase in a pattern. To be able to play 14 sounds with the 7 pads on the unit, pads are grouped in two banks (A and B) which can be switched with the [PAD BANK] key. When the [PAD BANK] key is out, bank A is selected. When the key is lit, bank B is selected.

Using Patterns (Pattern Mode)
This section shows how to play and record patterns of the MRT-3 in pattern mode.
The MRT-3 has 396 read-only preset patterns (A01 D99) and 99 read/write user patterns (U01 U99). To select and play a pattern, proceed as follows.
In the factory default condition, all user patterns are empty.
Press the [PATTERN] key. The [PATTERN] key lights up and the MRT-3 goes into pattern mode. The display shows the bank and number of the currently selected pattern.
Bank (A - D, U) Pattern number
Use the [VALUE +/-] keys to select the pattern number. Using Patterns (Pattern Mode)
For an empty user pattern, "E" is shown here.
In pattern mode, the [VALUE +/-] keys serve to select the pattern. For example, if you repeatedly press the [VALUE +] key, the patterns are switched in the order U01. U99 A01. A99 B01. B99 C01. C99 D01. D99 U01.
To directly switch the bank, press the [FUNCTION] key and then use the [VALUE +/-] keys. This switches only the bank and keeps the pattern number.
The [FUNCTION] key serves for making various settings of the MRT-3. The actual effect of pressing the key depends on the currently selected mode and on which other keys are used together with it.
Press the [PLAY] key. The [PLAY] key lights up and the pattern is played repeatedly. During playback, the [TEMPO] key flashes in sync with the tempo. The display shows the current position in the pattern (measure/beat).

Measure Beat

While a pattern is playing, you can also manually play the pads. While a pattern is playing, you can also switch to a different bank and pattern number. The new pattern will begin playing as soon as you switch to it.
To stop pattern playback, press the [STOP] key.
If you press the [PLAY] key instead of the [STOP] key, the unit goes into pause mode, and the [PLAY] key flashes. If you press the [PLAY] key again in this condition, playback resumes from the same position. Using Patterns (Pattern Mode)
Changing the Tempo of Pattern Playback
In pattern mode, you can adjust the play tempo in the range of BPM (quarter note beats per minute).
Press and hold the [TEMPO] key. The [TEMPO] key lights up and the current tempo is shown on the display.

Tempo value (BPM)

While keeping the [TEMPO] key depressed, use the [VALUE +/-] keys to adjust the tempo.
When the tempo is as desired, release the [TEMPO] key. To specify the tempo manually, tap the [TEMPO] key twice or more in the desired tempo (tap input function).

Tap twice

If you tap the [TEMPO] key twice or more often while a pattern is playing or stopped, the tapping interval of the last two taps is taken as the quarter note tempo. This allows you to simply set the tempo in sync with a song.

The tempo set in pattern mode applies to all patterns. It is not possible to set the tempo for a pattern individually.
Real-Time Pattern Recording
The MRT-3 has 99 user pattern slots which can be filled with your own patterns. Creating and recording a pattern is possible in two ways: by actually playing the pattern on the pads (real-time recording), or by entering each sound individually (step recording). This section describes the procedure for real-time recording.
In pattern mode, select an empty user pattern (U01 U99). If necessary, select a kit. When you select an empty user pattern, the indication "E" appears on the right side of the display.
If you change the kit in pattern mode while a user pattern is selected, the last selected kit will be stored for that pattern. You can also erase a recorded user pattern to return it to the empty state. See page 24.
Press the [FUNCTION] key and then pad 3 (QUANTIZE).
The display shows the current quantize setting. Quantization refers to the degree of detail with which notes are recorded. By setting the quantize value to the shortest note that you
want to use for the pattern, recording can be carried out while automatically maintaining precise timing.
Use the [VALUE +/-] keys to set the quantize value (shortest note to be recorded). The following settings are available.
12 16 Quarter note Eighth note Eighth triplet note Sixteenth note 24 32 48 Hi Sixteenth triplet note Thirty-second note Thirty-second triplet note 1 tick (1/96 of quarter note)
The selected setting will be used as shortest note for real-time recording.
Press the [FUNCTION] key again.
The quantize setting applies to all patterns. When recording another pattern with the same resolution, it is not necessary to set the quantize value again. By changing the quantize setting after recording is completed, you can add another part with different resolution to the same pattern. For example, after recording bass drum and snare drum using sixteenth notes, you may want to record a hi-hat sequence with thirty-second notes. If desired, you can change the resolution of a recorded phrase afterwards. For details, see the section "Changing User Pattern Resolution After Recording".
While holding down the [REC] key, press the [PLAY] key.
The [REC] key and [PLAY] key light up. The [TEMPO] key flashes in sync with the tempo, and one measure of precount clicks is heard before recording starts. During recording, metronome clicks are heard, and the display shows the current position in the pattern (measure/beat).

Tock tock tock tock Clack clack clack clack clack

Measure

Metronome sound

Precount Recording start

Unless specified otherwise, the beat and duration of an empty pattern where nothing has been recorded are the same as those of the most recently selected recorded pattern. If desired, you can change the beat and number of measures for the pattern ( p. 21 22). If desired, the duration of the precount can be changed, or it can be turned off ( p. 48).
Adjust the tempo if necessary. The pattern tempo can be changed at any time. For recording a difficult phrase, it might be helpful to temporarily reduce the tempo. Tap the pads in accordance with the metronome sound. The sound of the respective pad is heard, and it is recorded for the duration set with the quantize value. You can verify the current position in the pattern by checking the display. When the end of the pattern is reached, the recording loops back to the beginning and continues, allowing you to add to the recording as often as desired. (If necessary, use the [PAD BANK] key to change the pad bank.) To temporarily pause pattern recording, press the [REC] key while real-time recording is in progress.
The [REC] key starts to flash. If you hit a pad in this condition, the sound will be heard, but it is not recorded. This is useful to check the phrasing and sound before actually recording. To resume recording, press the [REC] key once more.
To erase the sound from a specific pad, push the pad while holding down the [DELETE/ERASE] key. While the key is held down, the sound from that pad is erased from the pattern.
Snare drum Bass drum Snare drum Bass drum
When recording is completed, press the [STOP] key.
If a MIDI clock signal is being received, real-time recording is not possible. For details, please refer to page 44. When there is not enough remaining free memory in the MRT-3, the indication "FULL" appears on the display, and further recording is not possible. Erase unneeded patterns.

Pattern Step Recording

This section describes step recording, which allows you to enter and record each sound separately, step by step, while the MRT-3 is in the stop condition. Even without mastering how to play the pads in real time, you can easily create complex drum and bass patterns. And you don't need to stop there, because you can even create patterns that would be impossible to play in real time. For step recording, you select the shortest note that is to be used as unit, and you create the pattern by pressing a pad (note) or the [REC] key (rest) for each step. For example, to create the following bass drum pattern with step recording, select an eighth note as smallest unit and make the entry as follows:

Bass drum

[Pad] [REC] [REC] [REC] [Pad] [REC] [Pad] [REC] [REC] [REC] [REC]
When the end of a pattern is reached, it loops automatically back to the beginning, allowing you to add other instrument sounds, to complete the pattern. By hitting two pads at the same time, you can enter two sounds in the same position.

1. 2. 3.

In pattern mode, select an empty user pattern. If required, select the kit for recording. The kit selection procedure is the same as for manual play ( p. 12). Press the [FUNCTION] key and then pad 3 (QUANTIZE).
The current quantize setting appears on the display. The minimum unit (shortest note) for step recording is determined by this setting.
The quantize setting applies to all patterns.
Press the [REC] key. The [REC] key and [START] key light up, indicating that the MRT-3 is ready for recording.
To enter a note, hit the pad corresponding to the desired sound.
For example, tapping pad 1 will enter a bass drum note (pad 1 lights up). The tapping intensity will also be recorded. When you press the [REC] key, the current position advances by the minimum unit. You can verify the current position (measure/beat) in the pattern by checking the display.
To enter a rest, press the [REC] key.
No sound is recorded, and the position advances by one step. If you press the [REC] key, the current position within the beat is shown as number of ticks. Using Patterns (Pattern Mode)
If you press the [PLAY] key, the current position within the beat is shown as number of ticks, for as long as the button is held. When there is not enough remaining free memory in the MRT-3, the indication "FULL" appears on the display, and further recording is not possible. Erase unneeded patterns.
When the end of the pattern is reached, the recording loops back to the beginning and continues, allowing you to add to the recording as often as desired. (If necessary, use the [PAD BANK] key to change the pad bank.)
To erase a sound, use the [REC] key to move to the desired position. Then press the corresponding pad while holding down the [DELETE/ERASE] key.
As you move the position with the [REC] key, the pad that has been input for the current position lights up. Pressing the pad while holding the [DELETE/ERASE] key down causes the pad to go out and the sound will be erased.
When recording is completed, press the [STOP] key. The [REC] key goes out and step recording terminates.
Changing User Pattern Resolution After Recording
The resolution that is recorded together with the play information of a user pattern can be changed later. For example, when a user pattern was recorded without quantization, it can be later set to a sixteenth note for dynamic matching.
In pattern mode, select the user pattern for which you want to change the resolution. Press the [FUNCTION] key and then pad 3 (QUANTIZE).
The current quantize setting appears on the display.

Pad number INST LEVEL value

Pad 4: KIT LEVEL

Allows adjusting the level of the entire kit. This adjustment is relative to the INST LEVEL setting. Adjustment is possible over a range of 1 15.

KIT LEVEL value

Pad 6: PAD SENS Allows adjusting the pad sensitivity for the entire kit. The following 7 settings are available. Soft (Fixed Soft): MEd (Fixed Medium): Loud (Fixed Loud): LItE (Light): norM (Normal): HArd (Hard): Ehrd (Extra Hard): Gives a soft sound regardless of the tapping intensity. Gives a medium sound regardless of the tapping intensity. Gives a loud sound regardless of the tapping intensity. This setting gives the highest sensitivity. This setting gives medium sensitivity. This setting gives low sensitivity. This setting gives the lowest sensitivity. To achieve a loud sound, the pads must be hit very hard.

PAD SENS value

Copying a Kit
A kit of the MRT-3 (preset kit or user kit) can be copied to any other user kit number (51 70). This is useful for example when wishing to change only a part of a kit.
In kit mode, select the kit to be used as copy source. The copy source can be either a user kit or a preset kit.

Copy source kit number

Press the [INSERT/COPY] key. The [INSERT/COPY] key flashes and the current kit is selected as copy source. When the copy source is a user kit, the indication "CoPy" flashes on the display.
When the copy source is a preset kit, the user kit "51U" is selected as default target, and the number flashes on the display. Creating Your Own Kit (Kit Mode)
Use the [VALUE +/-] keys to select a user kit (U51 U70) as copy target. Only user kits can be selected as copy targets.
When the copy is executed, the existing contents of the user kit selected as copy target will be erased. Make sure that the kit you have selected is one that you don't mind erasing. When the copy source is a user kit, the same kit is first selected after step 2. However, it is not possible to copy a kit onto itself.
To execute the copy process, press the [INSERT/COPY] key. When wishing to cancel the process, press the [STOP] key.
When copying is completed, the unit returns to the kit mode with the copy target kit being selected.
If copying was canceled, the unit returns to the kit mode with the copy source kit being selected.
This section describes how to line up user patterns in a desired order to create an entire song. This mode of operation is called the song mode.

What Is a Song?

A song is a programmed sequence of preset patterns or user patterns that are played automatically. A song consists of multiple slots (called "steps"), each of which contains one pattern. The maximum length of a song is 99 steps. The maximum number of songs that can be stored in the MRT-3 is 99. (The actual number of available steps and songs will depend on the number of distinct sounds in user patterns and the number of steps in other songs.)

In song mode, select the song for which you want to specify a kit. Press the [FUNCTION] key and then the [KIT] key. The kit number for that song is shown on the display. The default setting is "Pat", which means that the kit selected for the respective pattern will be used.
Use the [VALUE +/-] keys to select a dedicated kit for that song.
When you have selected the kit, press the [FUNCTION] key.
The kit for that song is stored, and the unit returns to the song mode.
Checking the Amount of Remaining Memory for Songs
You can call up a display that shows the remaining free memory for songs as a percentage. Proceed as follows.
In song mode, press the [FUNCTION] key, and then the [PATTERN] key. The amount of free memory is shown in percent on the display. This indication is for information only and cannot be changed.
Press the [FUNCTION] key again. The unit returns to the song mode.

Copying a Song

This section describes how you can copy a song.
In song mode, select the song you want to copy.

Copy source song number

Press the [INSERT/COPY] key. The [INSERT/COPY] key flashes and the current song is selected as copy source. The indication "CoPy" flashes on the display.
Use the [VALUE +/-] keys to select a song number as copy target.
When the copy is executed, the existing contents of the song selected as copy target will be erased. Make sure that the song you have selected is one that you don't mind erasing.
When copying is completed, the unit returns to the song mode with the copy target song being selected.
If copying was canceled, the unit returns to the song mode with the copy source song being selected.

Deleting a Song

If you wish to delete a song, proceed as follows.
In song mode, select the song you want to delete. Press the [DELETE/ERASE] key. The [DELETE/ERASE] key flashes and the indication "dEL" alternates on the display with the song number.
To execute the delete process, press the [DELETE/ERASE] key. To cancel the process, press the [STOP] key.
When deleting is completed, the unit returns to the song mode with an empty song being selected. If deleting was canceled, the unit returns to the song mode with the original song pattern being selected. Once deleted, a song cannot be restored. Proceed with care to prevent inadvertently deleting a song.

When you have selected the function, press the [FUNCTION] key once more. The FS01 function is now set, and the MRT-3 returns to the previous mode. Try pressing the foot switch while using the MRT-3, to check the effect.
The setting cannot be canceled. If you want to select another function, repeat the above procedure.
Synchronizing Playback With an External Device
You can synchronize operation of the MRT-3 to an external device with MIDI OUT, such as a MIDI sequencer or recorder. The MRT-3 then performs pattern or song playback using the tempo supplied by the external device.
Connect the MIDI OUT jack of the MIDI sequencer/recorder to the [MIDI IN] connector of the MRT-3, using a MIDI cable. The illustration shows an example for connecting the Multitrak Recording Studio ZOOM MRS-4 to the MRT-3. If you connect the output of the MRT-3 to the AUX IN jack of the MRS-4, as shown here, the MRT-3 can be used to supply a dedicated rhythm track without taking up any audio tracks of the MRS-4

AUX IN MRS-4

MIDI OUT
MIDI IN OUT PUT STEREO MRT-3
Make sure that the external MIDI sequencer can send MIDI Clock, Start, Stop, and Continue signals.
In pattern mode, press the [FUNCTION] key and then pad 6 (MIDI).
The clock currently used by the MRT-3 is shown on the display. The meaning of the indication is as follows. Int (Internal) The MRT-3 operates with its internal clock (default setting). This is the setting for using the MRT-3 on its own. Midi (MIDI clock) The MRT-3 receives a clock signal from an external source (MIDI sequencer/recorder etc.) and synchronizes the playback tempo to this signal. Transport operations (playback start, stop, restart) and locate operations (moving the current position) can also be controlled remotely from the external device. rMt (Remote) The MRT-3 operates on its internal clock, as with "Int". However, transport operations only can be controlled remotely from an external device.
The clock source and supported MIDI messages with the various settings are shown below.

Int Midi rMt

Clock source Start/Stop/Continue supported Song Position Pointer supported

Internal clock No No

MIDI clock Yes Yes

Internal clock Yes No

Use the [VALUE +/-] keys to select the "Midi" or "rMt" setting.
When wishing to control the tempo, transport operations, and locate operations all from the external device, select "Midi". In this case, the internal tempo settings of the MRT-3 have no effect. Set the tempo at the external device. When wishing to control only transport operations from the external device, select "rMt". In this case, the internal tempo settings of the MRT-3 are active. (Because the tempo of the MRT-3 and the tempo of the external device are not synchronized, position matching within a song for playback is not possible.)

Setting the Pattern/Song Playback Swing
You can adjust the swing amount (rhythm flourish) for playback of patterns and songs. This setting affects all patterns and songs.
In pattern mode or song mode, press the [FUNCTION] key and then pad 7 (SWING). The current swing amount setting is shown on the display (default setting: 50).
Use the [VALUE +/-] keys to adjust the swing amount.
The setting range is 50 75. Raising the setting from the default of 50 (no swing) increases the interval between upbeat and downbeat in a measure, resulting in a swinging rhythm. Other Functions

Swing=50%

Swing=60%

Swing=75%

If necessary, press the [PLAY] key to play a pattern and check the effect.
When the setting is complete, press the [FUNCTION] key again.
The unit returns to the previous mode.
Setting the Precount for Real-Time Recording
The MRT-3 can perform a countdown before the start of real-time recording. The number of precount measures can be changed, and precount can also be turned off. This setting affects all patterns.
In pattern mode, press the [FUNCTION] key and then pad 2 (PRE COUNT). The current precount setting is shown on the display (default setting: 1).
Use the [VALUE +/-] keys to select one of the following settings.

0: 1: 2: PAd:

No precount Precount of 1 measure Precount of 2 measures Recording starts when any pad is hit.
When "PAd" is selected, holding down the [REC] key while pressing the [PLAY] key in pattern mode brings up the indication "rEAdy" on the display, and the unit goes into recording standby mode.
Returning the MRT-3 to the Factory Default Condition
You can return all stored data and settings of the MRT-3 to the factory default condition. This is called initialization.
Use this function with care. Initialization will clear all user pattern data, user kit data, and song data that you have created.
Hold down the [REC] key while turning power to the MRT-3 on. The display shows "Init".
To carry out the initialization process, press the [REC] key once more. To cancel the operation, press the [STOP] key.
When initialization is performed, all data and settings of the MRT-3 will return to the factory default condition, and the unit will restart.
If the operation is canceled, the unit comes on normally.

Troubleshooting

Check the following items first if there seems to be a problem with the MRT-3. No sound or very low volume. Is the [POWER] switch set to ON? Turn power on, as described in the section "Preparations" (page 8). Is [OUTPUT] jack connected correctly to the playback system? Make connections as described in "Getting Connected" (page 7). Is there a problem with the shielded cable? Try using another cable. Is the connected playback system operating normally and is the volume setting appropriate? Check the system and make sure that the level is adjusted properly. Is [OUTPUT LEVEL] control of MRT-3 set correctly? Set the control to a suitable position. Sound is distorted or intermittent. Is output level of MRT-3 set too high? Set [OUTPUT LEVEL] control of MRT-3 to a suitable position. Troubleshooting Cannot record pattern. Is MRT-3 set to mode other than pattern mode? Activate pattern mode ( p. 14). Is memory capacity limit reached? Check remaining memory capacity( p. 39), and delete unneeded patterns and songs. Song cannot be recorded. Is MRT-3 set to mode other than song mode? Activate song mode ( p. 33). Is memory capacity limit reached? Check remaining memory capacity( p. 39), and delete unneeded patterns and songs. Playback sound is not in stereo. Is Y cable connected to [OUTPUT STEREO/PHONES] jack? Make connections as described in "Getting Connected" (page 7). Is the panning setting appropriate? Check whether the pan parameter for the instrument sounds in the currently used kit is set properly ( p. 28). FS01 has no effect. Is foot switch connected correctly to the [FOOT SW] jack? Make connections as described in "Getting Connected" ( page 7) Is correct function selected for FS01? Use [FUNCTION] key and pad 4 (FOOT SW) to select the proper setting ( p. 42).

Pattern name 16ROCK03 16ROCK04 16ROCK05 16ROCK06 GrvDrm01 GrvDrm02 GrvDrm03 BALD01 BALD02 BALD03 BALD04 BALD05 BALD06 BALD07(shuffle) BALD08(shuffle) BALD09(shuffle) BALD10(shuffle) BALD11(shuffle) BALD12T BALD13T BLUS01(shuffle) BLUS02(shuffle) BLUS03(shuffle) BLUS04(shuffle) BLUS05(shuffle) BLUS06T BLUS07T BLUS08T CNTR01 CNTR02 CNTR03 CNTR04 CNTR05 JAZZ01 JAZZ02 JAZZ03 JAZZ04 JAZZ05 JAZZ06 JAZZ07 JAZZ08T JAZZ09P SHFL01 SHFL02 SHFL03 SHFL04 SHFL05 SHFL06 SHFL07
Display C01 C02 C03 C04 C05 C06 C07 C08 C09 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C47 C48 C49 C50
Pattern name HIP01 HIP02 HIP03 HIP04 HIP05 HIP06 HIP07 HIP08 HIP09 HIP10 HIP11 HIP12 HIP13 HIP14 HIP15 HIP16 HIP17 HIP18 HIP19 HIP20 HIP21 HIP22 HIP23 HIP24 HIP25 HIP26 HIP27 HIP28 HIP29 HIP30 HIP31 HIP32 DANC01 DANC02 DANC03 DANC04 DANC05 DANC06 DANC07 HOUS01 HOUS02 HOUS03 HOUS04 HOUS05 HOUS06 TECH01 TECH02 TECH03 TECH04 TECH05

KIT 8 9

Display C51 C52 C53 C54 C55 C56 C57 C58 C59 C60 C61 C62 C63 C64 C65 C66 C67 C68 C69 C70 C71 C72 C73 C74 C75 C76 C77 C78 C79 C80 C81 C82 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 C96 C97 C98 C99
Pattern name TECH06 TECH07 TECH08 DnB01 DnB02 DnB03 DnB04 DnB05 DnB06 DnB07 TRIP01 TRIP02 TRIP03 AMB01 AMB02 AMB03 AMB04 INDUSTRIAL01 INDUSTRIAL02 INDUSTRIAL03 REGG01 REGG02 REGG03 REGG04 SKA01 SKA02 SKA03 LATN01 LATN02 LATN03 LATN04 LATN05 LATN06 LATN07 LATN08 LATN09 LATN10 LATN11 LATN12 BOSSA01 SAMBA01 SAMBA02 AFRO01 AFRO02 AFRO03 MidE01 MidE02 MidE03 MidE04T

KIT 22

Display D01 D02 D03 D04 D05 D06 D07 D08 D09 D10 D11 D12 D13 D14 D15 D16 D17 D18 D19 D20 D21 D22 D23 D24 D25 D26 D27 D28 D29 D30 D31 D32 D33 D34 D35 D36 D37 D38 D39 D40 D41 D42 D43 D44 D45 D46 D47 D48 D49 D50
Pattern name INTRO01 INTRO02 INTRO03 INTRO04 INTRO05 INTRO06 INTRO07 INTRO08 INTRO09(shuffle) INTRO10 INTRO11 INTRO12 INTRO13 INTRO14 INTRO15 INTRO16 INTRO17 INTRO18 INTRO19 ROCK-FILL01 ROCK-FILL02 ROCK-FILL03 ROCK-FILL04 ROCK-FILL05 ROCK-FILL06 ROCK-FILL07 ROCK-FILL08 ROCK-FILL09 HARDROCK-FILL01 HARDROCK-FILL02 HARDROCK-FILL03 HARDROCK-FILL04 METAL-FILL01 METAL-FILL02 THRASH-FILL01 FUSION-FILL01 FUSION-FILL02 FUSION-FILL03 FUSION-FILL04 FUSION-FILL05 FUSION-FILL06 POPS-FILL01 POPS-FILL02 POPS-FILL03 POPS-FILL04 POPS-FILL05 POPS-FILL06 POPS-FILL07 RnB-FILL01 RnB-FILL02

KIT 7 19

Display D51 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63 D64 D65 D66 D67 D68 D69 D70 D71 D72 D73 D74 D75 D76 D77 D78 D79 D80 D81 D82 D83 D84 D85 D86 D87 D88 D89 D90 D91 D92 D93 D94 D95 D96 D97 D98 D99
Pattern name FUNK-FILL01 FUNK-FILL02 FUNK-FILL03 FUNK-FILL04 GROOVE-FILL01 GROOVE-FILL02 BALAD-FILL01 BALAD-FILL02 BLUES-FILL03 BLUES-FILL04 COUNTRY-FILL01 COUNTRY-FILL02 JAZZ-FILL01 JAZZ-FILL02 SHUFFLE-FILL01 SHUFFLE-FILL02 HIP-FILL01 HIP-FILL02 DANCE-FILL01 DANCE-FILL02 DANCE-FILL03 DANCE-FILL04 HOUSE-FILL01 HOUSE-FILL02 TECHNO-FILL01 TECHNO-FILL02 DRUMnBAS-FILL01 DRUMnBAS-FILL02 AMBIENT-FILL01 AMBIENT-FILL02 INDUSTRIAL-FILL01 SHUFFLE-FILL01 REGGAE-FILL01 REGGAE-FILL02 LATIN-FILL01 LATIN-FILL02 BOSSA-FILL01 BOSSA-FILL02 AFRO-FILL01 AFRO-FILL01 MidE-FILL01 MidE-FILL02 ENDING01 ENDING02 ENDING03 ENDING04 ENDING05 ENDING06 ENDING07

1. Recognized Messages Status 1st 2nd Description
----------------------------------------------------------------------------------8nH kk vv Note Off kk: note number (See Note 1) vv: velocity will be ignored 9nH 9nH kk kk 00H vv Note Off Note On kk: note number kk: note number vv: velocity (See Note 1)
BnH BnH BnH BnH CnH F2H F3H F8H FAH FBH FCH

07H 11H 78H 7BH pp sl ss

vv vv xx xx
Channel Volume vv: volume value Channel Expression vv: expression value All Sounds Off All Notes Off Program Change pp: program number (See Note 2)
Song Position Pointer shsl: song position (See Note 3) Song Select ss: song number 0-98 Timing Clock Start Continue Stop
NOTE: n = MIDI Channel Number ( 0000 - 1111 ) 1. Note Off Messages is recognized but will be ignored. 2. Relationship between Program Numbers and Kit Numbers are assigned as "Kits List" attached. 3. SongPositionPointer for a pattern, new location is wrapped around the bar length of the pattern. 4. Note On messages can be recorded into a pattern.

2. Transmitted Messages

3. System Exclusive Messages No SysEx messages are recognized/transmitted.
[DRUM MACHINE Model MRT-3 ] MIDI Implementation Chart Transmitted Function. Basic Channel Default Changed Default Messages Altered 1-16 1-****************** 0-127 True voice ****************** o x x x x Volume Expression Memorized Recognized Date : 20.Feb.,2002 Version :1.00

Remarks

Note Number
Velocity Note ON Note OFF After Touch Pitch Bend Key's Ch's

Control

Change

All Sounds Off

Prog Change
o 0-127 True # ****************** x o o x o o x o x x No messages will be transmitted.
System Exclusive System Common System Real Time Aux Messages Notes Song Pos Song Sel Tune Clock Commands
Local ON/OFF All Notes OFF Active Sense Reset
Mode 1 : OMNI ON, POLY Mode 3 : OMNI OFF, POLY
Mode 2 : OMNI ON, MONO Mode 4 : OMNI OFF, MONO

o : Yes x : No

Display A
ALL (ALL) COPY (COPY) DEL (DEL) DEMO (DEMO) FULL (FULL) INIT (INIT) INT (INT) MIDI (MIDI) NORM (NORM) PAT (PAT) READY (READY) STRT (STRT)