Upgrade your Yamaha DX7 II-D to Yamaha DX7 II-FD
February 2009 By CloudsWalker www.cloudswalker.com
Missing Parts on the Yamaha DX7 II-D : IC5 Integrated Circuit 16 pin DIL : TC40H174P 6 x D-Flip-flop, can be replaced by 74HC174 Integrated Circuit 14 pin DIL : 7405 (TTL)
IC22 Integrated Circuit 28 Pin DIL : HM65256BLP12 SRAM, can be replaced by HM62256LP12 or equivalent IC23 EPROM 27512 or 27C512 for the new Operating System IC24 Integrated Circuit 28 Pin DIL : WD1772-PH Western Digital Floppy Disk Controller !!! CN1 3,5 inch Floppy Disk with Drive Select pin Floppy Disk Male Connector 34 pin flat cable between Main Board and Floppy Disk Power cable between Power Supply Board and Floppy Disk Parts collecting : 74HC174 is easy to found and found also one IC socket 16 pin DIL 7405 is easy to found and found also one IC socket 14 pin DIL HM62256LP12 or equivalent is relatively easy to found and found also one IC socket 28 pin EPROM 27C512 is relatively easy to found and found also one IC socket 28 pin DIL WD1772 can by found on the Web or removed from one Atari ST !!! + IC socket 28 pin The floppy Disk can be 1.44Mb/720kb new BUT with Drive Select 0 Battery replacement : It will be judicious at this Time to change your Backup Battery ( 3V CR2032 ) Its better to solder a socket. This socket can be removed from an old PC Mother Board !!! (1986)

Procedure :

Ive open my Yamaha DX7 II-FD and we can see a soldered Battery
Ive remove the EPROM with Operating System
Ive program one new EPROM 27C512 with my Personal Computer
Ive remove the soldered ROM in my Yamaha DX7 II-D and remove solder in holes for IC5, IC6, IC22, IC24 and CN1, we can also see a soldered Battery
Ive remove the Battery socket and the plastic (only the plastic) from the FDD Controller on an old PC Mother Board
Ive remove the Western Digital FDD Controller from one old ATARI 520STFM
We must take care to not destruct IC and the Atari Mother Board
After soldering the dual in line FDD connector Ive insert the plastic for the FDD Connector
Ive insert and solder 5 IC sockets, remove the Battery and insert the Battery socket removed from the PC Main Board. Then Ive insert the 4 IC and the EPROM with the new Operating System
Ive solder a Power cable for make the first tests
Ive connect the Floppy Disk to the Main Board of my Yamaha DX7 II-D

Upgrade Done !!!

Ive insert the removed EPROM in my Yamaha DX7 II-FD and my Battery is into a socket
I must make a hole for the Floppy and a little mechanic and a good Power Cable for FDD
New Floppy Disk mounts. I must still make a short flat cable and a good FDD Power Cable.

Final Result.

FD Label

DISK Label

The DX's "welcome" display.
After a few seconds, this welcome display will be replaced by the last Play Mode display selected before the DX was turned off:
The DX's next initial display.
Setting the Volume Slider Since the volumes of the various voices differ, start with a setting in the middle of the slider's range; adjust later to suit your taste, depending on the voice or voices being played.

Volume Slider

VOLUME
Setting the Pan and Poly/Mono Buttons Before you begin to play your new DX, make sure that the settings of the Pan and Poly/Mono buttons are correct for your situation:
To ensure that you are listening to the voices just as they were created, make sure that this light is OFF. If it is ON, press the POLY/MONO button to turn the light OFF. (The reasons for this will be explained later in this manual.) If you are using stereo outputs or headphones, make sure that this light is lit. If it is not, press the PAN button to turn the light ON. If you are using a single (mono} output, make sure that this tight is not lit. If it is, press the PAN button to turn the light OFF.
Poly/Mono and Pan Buttons
Exploring The New Performance Library
The Performance Mode is a completely new feature for the DX7. It allows you to play two different voices at once, and offers a number of other useful performance-oriented features. These features will be explained in detail in Sections 2 and 3 of this manual. For now, though, just follow the steps below, and explore the richness of the Performance Mode by playing through all of the new sounds available in the Internal and ROM Cartridge memories. Selecting the Internal Performance Memories
This portion of the LCD displays the name and number of the selected Performance memory.
This portion of the LCD displays the location and number of the voice or voices used to create the selected Performance memory.
The Internal Performance Memories

Performance

Voice A

FingaPicka ElectoComb ClariSolo PianoBrite Choir TempleGong SkweekBass Titeguitar TapOrgan PitchaPad BellWahh A EleCello A PianoForte SilvaTrmpt Wallop A Clavinette Warm Stg B KnockRoad LateDown HarpsiBox Whisper B SilvaBrass Wallop B BellWahh B GuitarBox HallOrch A HarmoniumA EleCello B HallOrch B HardRoads Xylo-Brass HarpsiWire
Selecting the Cartridge Voice Memories
*The 1~32/33~64 light will be off, indicating that voices 1-32 are currently selectable. To select voices 33~64, press the 1~32/33~64 button. The light will go on, indicating that voices 33~64 are currently selectable.
The Cartridge Voice Memories

Bank 1 of the supplied

Bank Warm Stg A 2 MellowHorn 3 PickGuitar 4 Analog-X 5 FullTines 6 SuperBass 7 FMilters 8 Pluk 9 EbonyIvory 10 Whisper A 11 HarpStrum 12 TouchOrgan 13 Maribumba 14 Trumpet A 15 PianoBells 16 SongFlute 17 Phasers 18 Vibraphone 19 Ensemble 20 St.Elmo's 21 EchoMallet 22 ClaviStuff 23 MultiPerc 24 Trumpet B 25 MalletHorn 26 CongaDrum 27 StringBass 28 SteelCans 29 Koto 30 FM-Growth 31 WireStrung 32 Shorgan FingaPicka ElectoComb ClariSolo PianoBrite Choir TempleGong SkweekBass Titeguitar TapOrgan PitchaPad BellWahh A EleCello A PianoForte SilvaTrmpt Wallop A Clavinette Warm Stg B KnockRoad LateDown HarpsiBox Whisper B SilvaBrass Wallop B BellWahh B GuitarBox HallOrch A HarmoniumA EleCello B HallOrch B HardRoads Xylo-Brass HarpsiWire
Bank Clavecin 2 SmoohBass 3 Pipe Organ 4 ClaviPluck 5 RaspySax 6 MilkyWays 7 HardTines 8 Violins 9 TingVoice 10 LadyVox 11 Harmonica 12 SpitFlute 13 BopBass 14 Glastine A 15 HardBones 16 OctiLate 17 PuffPipes 18 BC Sax 19 ClaviBrass 20 Swissnare 21 BriteOrgan 22 WhapSynth 23 Thunder on 24 PanFloot 25 Englishorn NewOrchest 27 BC Trumpet 28 LeadaPicka 29 Handrum 30 Tuba 31 Plukatan 32 KoikeCycle Glastine B HardTrumps Timpani Piccolo FrenchHorn StonePhone Whasers Fifths CongoClave RubberGong OwlBass RubbaRoad PizzReverb PizzEcho PuffOrgan ElecBrass SpaceVox JazzBass FC Strings FC Choir HarinoniumB Bells YesBunk ElectroBak MaleChoir HardBass LongGong Science Explosion Celeste HarmoSvnth

INIT VOICE

ROM cartridge contains the Voice & Performance Memory loaded into the DX's Internal Memory when it is shipped from the factory. Bank 2 contains an entirely different set of Voice & Performance data.

The Play Modes

Now that you have an idea of some of the sound combinations available on the new DX, it is time to take a closer look at how the various Play Modes operate. Read on: Voice Modes and Performance Mode As you have heard from playing through the Performance Memories, it is possible to play two different voices at the same time on the new DX. However, you do not need to be in Performance Mode to try out various combinations of voices. In addition to Performance Play Mode, there are three different Voice Play Modes: Single, Dual, and Split. Single Mode calls up one voice at a time from the DX's library of voices, as you learned on page 10 of this manual. Both Dual and Split involve two voices, A and B. In Dual Mode, both voices are played together, over the entire range of the keyboard. In Split Mode, Voice A is played from the left side of the keyboard, while Voice B is played from the right side of the keyboard. When you are in the Voice Split Mode (rather than the Performance Split Mode), the Split Point is always set at C3. To enter Dual or Split Mode, simply press the appropriate Voice Mode button; the light above the selected Voice Mode button will go on. Only one of these Voice Mode lights can be lit at a time. (These lights also show which Voice Mode is Selected when you are in the Performance Mode.) Once you choose the Voice Mode you want to work with, use the 1~32/33~64, A/B, and number buttons to select specific voices. Using the 1~32/33~64 Button The light above the 1~32/33~64 button tells you which set of voices can be selected: If the light is off, voices 1~32 can be selected using the number buttons; if the light is lit, voices 33~64 can be selected using the number buttons. This holds true for all three Voice Play Modes. Using the A/B Button The light above the A/B button tells you which voice location (A or B) is active for voice selection in Dual and Split modes: If the light is off, Voice A is active, and the voice chosen with the number buttons will be shown as Voice A in the LCD display; if the light is on, Voice B is active, and the voice chosen with the number buttons will be shown as Voice B in the LCD display. Using the Poly/Mono Button The light above the Poly/Mono tells you (indirectly) which Key Mode is currently active in Play Mode: If the light is off, the Key Mode remains as programmed; if the light is lit, the opposite Key Mode will be active. Key Modes will be explained further in Section 4.

The DX is designed to operate with many controllers, each of which can be set to perform one of a number of different effects. The settings for these controllers can be different for each Voice Memory or Performance Memory. To begin your exploration of the expanded musical possibilities available with controllers on the DX, try the examples listed below. Many of you may already he familiar with the operation of the these controllers; for those who are not, each section below begins with instructions on how to locate or attach the controller in question. Pitch Bend Wheel The Pitch Bend Wheel is located to the far left of the keyboard. To get an idea of some of the effects possible with the Pitch Bend Wheel, use it with Internal Voice #1 or Internal Voice #11. Move the Wheel both quickly and slowly as you play. Modulation Wheel The Modulation Wheel is located to the near left of the keyboard (to the right of the Pitch Bend Wheel). For a taste of the possibilities of the Modulation Wheel, try it with Internal Voice #2 or Internal Voice #28. Aftertouch Aftertouch is a keyboard feature that gives you extra control over a voice. It is engaged by pushing down on the keys after they have already been depressed. To try some of the effects available with Aftertouch, call up Internal Voice #3 or Internal Voice #19. After you have played a group of keys, press them down into the key bed and listen to the result. Breath Controller The Breath Controller plugs into the mini-jack to the left of the Phones plug on the front of the DX. It allows you a great deal of expressive control over the shape of the sounds you play on the keyboard. Try using the Breath Controller in conjunction with Cartridge Voice #18 or Cartridge Voice #27 (from Bank 2 of the ROM). With both of these sounds, you will notice that playing on the keyboard by itself produces no sound: In order to hear the voices, you must hold down keys and blow into the Breath Controller.
Foot Controllers 1 and 2 The Foot Controllers plug into the two Foot Controller plugs on the back panel of the DX. They can give you continuous control over a number of aspects of the sounds. Try using Foot Controller 1 with Cartridge Voice #47 or Cartridge Voice #52 (from Bank 2 of the ROM). Foot Controller 2 is most often used as a volume pedal, but other effects are possible. Play Internal Voice #4 or Internal Voice #6 while experimenting with Foot Controller 2. Footswitches 1 and 2 The Footswitches plug into the two Footswitch plugs on the back panel of the DX. Footswitch 1 acts much like a sustain pedal on a piano. Try it with Internal Performance #18 or Internal Performance #21 to get an idea of the different effects that are possible. Footswitch 2 can be used to engage a number of effects, including that of the soft pedal on a piano. Try it in conjunction with Cartridge Performance #27 or Cartridge Performance #28 (from Bank 2 of the ROM). Continuous Sliders 1 and 2 The Continuous Sliders are located to the right of the Volume Slider on the left side of the DX's front panel. They can be programmed to give you control over many aspects of the timbre of the sounds, and can even be used to alter parameters of a voice in real time. Try using Continuous Slider 1 with Internal Performance #1 or Internal Performance #4. Then listen to the effect that Continuous Slider 2 has on Internal Performance #2 or Internal Performance #5.

Editing Performance and Voice Data After entering one of the Edit Modes, use the number buttons to access the parameter whose value you wish to change. Each number button calls up a variety of parameters, often through the use of multiple LCD screen displays. A complete set of these screen displays will be given at the beginning of Section 3 (for Performance Edit Mode) and Section 4 (for Voice Edit Mode). In most cases, each LCD display gives you access to a number of parameters. Using the Cursor Buttons and the Data Entry Buttons/Slider
Use these buttons to position the LCD cursor next to the parameter you wish to edit. Parameters are listed along the top row of the LCD display, and the cursor should be positioned over the > character pointing to the parameter you wish to edit.
The cursor buttons and the data entry slider/buttons.
Once you have selected the parameter to edit (using the cursor buttons), use the data entry slider or the +1/-1 buttons to change the value of the selected parameter. The new values will appear in the bottom row of the LCD, and you will hear the effect of these new values when you play the keyboard.
Edit/Compare Once you have started to edit a voice, you can compare your new sound to the original by pressing the Edit/Compare button:
The Edit/Compare LED display.
Edit/Compare only operates in Voice Edit Mode, not in Performance Edit Mode (with the exception of Micro Tuning Edit Mode, which will be discussed in Section 3 of this manual).
Edit Button Quick Reference Guide
Voice parameters are discussed in more detail in Section 4.
Voice Edit parameters are discussed in more detail in Section 4.
Performance parameters are discussed in more detail in Section 3.
Utility parameters are discussed in more detail in Section 5.
MIDI parameters are discussed in more detail in Section 6.

Saving New Sounds

Once you have altered a particular Voice or Performance memory to your liking, you will want to save your new data in one of the DX's memory locations. Single Voice memories and single Performance setups can be saved either to the Internal Memory or to a RAM Cartridge Memory. To do so, proceed as follows: Memory Protection Each time the DX is turned on, it automatically powers up with both the Internal and the Cartridge Memory Protect feature turned on. Before you can save data, you must turn off this automatic memory protection. Turning Memory Protect Off

Performance Memory Do not try to edit Performance data while in Voice Edit Mode. If you do, you will hear and see the Performance edits, but they will not be stored as part of memory when you store the Voice data.
Storing Performance Data to Internal or Cartridge Memory
Voice Memory Do not try to edit Voice data while in Performance Edit Mode. If you do, you will hear and see the Voice edits, but they will not be stored as part of memory when you store the Performance Data. Storing Voice Data to Internal or Cartridge Memory
Using the New Performance Features
Performance Edit Buttons Button 27 LCD Displays Button 28 LCD Displays Button 29 LCD Displays Button 30 LCD Displays Basic Performance Parameters Total Volume Balance Dual Detune Split Point Note Shift EG Forced Damp Performance Name Pan Basic Pan Function Pan Modes Pan EG Controllers Sustain Footswitch (FS 1) Footswitch 2 (FS 2) Continuous Sliders FM Parameters Assignable to CS1 and CS2 Micro Tuning Selecting a Micro Tuning The Micro Tuning Presets Micro Tuning Editing and Storage

Performance Edit Buttons

All of the Performance Mode parameters are adjusted via the LCD displays called up using buttons 27 ~ 30. All of the these buttons call up multiple LCD displays. The charts below show all of the displays called up by each button, and provide a complete list of parameters and value ranges. In some cases, the first LCD display in a chart may not he the first one you see. You may need to cycle through the displays (by pressing the button repeatedly) until you reach the desired LCD display.

Button 27 LCD Displays

Button 28 LCD Displays

>Voice mode

Voice Mode (single, dual, split)

>Total volume

Total Volume (0-99)

>Balance

Balance (-50 to +50)

>Dual detune

Dual Detune (0-7)

>Split point

Split Point (C-2 to G8 by halt steps)

Button 29 LCD Displays

Button 30 LCD Displays
Basic Performance Parameters
Accessed using buttons 28 and 29, these parameters determine the basic voice relationships in Performance Mode. Total Volume This parameter allows you to set an overall volume for each Performance memory. If you desire, you can use this setting to balance the levels of your Performance memories, so that constant Volume Slider or mixer adjustments are not necessary. Balance This parameter adjusts the relative volume of the two voices in Dual and Split Modes:

Pan Modes are operative only if you are using both of the DX's audio output jacks.

Type Pan

Level OFF Level Level
If you select Pan Mode 0, the output of the two voices in Dual or Split Modes is combined, and the location of the sound in the stereo panorama is determined by the Pan effect selected. If you select Pan Modes 1 ~ 3, the two voice outputs remain separated, and the relative level of the two voices is determined by the Pan/Level effect selected. There are three basic types of Pan/Level effects: LFO, Velocity, and Note Number. Each one opens up a number of possibilities: If LFO is selected, the Pan/Level effect will be controlled by the Voice LFO (the LFO of Voice A in Dual or Split Modes). If you are operating in Pan Mode 0, the LFO controls the position of the audio output in the stereo mix; if you are operating in Pan Modes 1 ~ 3, the LFO controls the level of the selected voices (both, A, or B). If Velocity is selected, the Pan/Level effect will be controlled by the force of your keyboard touch. If you are operating in Pan Mode 0, Velocity controls the position of the audio output in the stereo mix: Softer touches (slower velocities) will position the sound more in output jack A, while stronger touches (faster velocities) will position the sound more in output jack B. If you are operating in Pan Modes 1 ~ 3, Velocity controls the output volume of the selected voices (both, A, or B).
If Key Number is selected, the Pan/Level effect will be controlled by the right/left position of keys played on the keyboard. If you are operating in Pan Mode 0, Key Number controls the position of the audio output in the stereo mix: Notes played to the left of C3 will position the sound more in output jack A, while notes played to the right of C3 will position the sound more in output jack B. If you are operating in Pan Modes 1 ~ 3, Key Number controls the output volume of the selected voices (both, A, or B). The overall depth (intensity) of these Pan/Level effects is controlled by the Range parameter. Please note that all of these Pan/Level effects are global, rather than note by note: Each new Velocity input or Key Number input will reposition the audio (or readjust the output) of all notes currently sounding. Pan EG The Pan EG allows you to create an envelope for automatic control of Pan (Pan Mode 0) or Level (Pan Modes 1 ~ 3):

The new DX contains eleven preset Intonations, which should provide you with a good introduction to possibilities of alternate intonation schemes.
Equal Temperament Pure (Major) Pure (Minor) Mean tone Pythagorean Werckmeister Kirnberger Vallotti & Young 1/4 Shifted equal 1/4 Tone 1/8 Tone
In presets 2 ~ 5, the tuning can be adjusted according to the key of the music being played. Micro Tuning Editing and Storage If you are interested in alternate tunings and intonations, you may want to create your own sets of Micro Tuning data. The DX provides two memory locations for this purpose: User 1 and User 2. These two sets of data are stored as part of the Internal Memory, and will be stored along with all other Internal data when the Internal Voice & Performance Memory is saved to another storage medium (such as RAM cartridge or disk). In addition, up to 63 Micro Tunings can be saved to RAM cartridge that has been properly formatted for that purpose.
Entering the Micro Tuning Edit Mode
Editing Micro Tuning Data
Storing Micro Tuning Data
Using the New Voice Features
Voice Edit Buttons Button 7 LCD Display Button 8 LCD Display Button 9 LCD Display Button 10 LCD Displays Button 11 LCD Display Button 12 LCD Display Button 13 LCD Display Button 23 LCD Displays Button 24 LCD Displays Button 25 LCD Displays Button 26 LCD Displays Basic Voice Editing Functions Operator Select Operator On/Off EG Copy New Voice Parameters Pitch Envelope LFO Key Modes Controllers Function Data and Voice Effect Data Pitch Bend Modes Foot Controller 1 Fractional Scaling Fractional Scaling and Level Scaling Fractional Scaling Editing and Storage

Voice Edit Buttons

All of the Voice Mode parameters are adjusted via the LCD displays called up using buttons 7 ~ 13 and 23 ~ 26. Many of the these buttons call up multiple LCD displays. The charts below show all of the displays called up by each button, and provide a complete list of parameters and value ranges. In some cases, the first LCD display in a chart may not be the first one you see. You may need to cycle through the displays (by pressing the button repeatedly) until you reach the desired LCD display. Button 7 LCD Display

Button 8 LCD Display

Button 9 LCD Display

Button 10 LCD Displays

Button 11 LCD Display

Button 12 LCD Display

Button 13 LCD Display

Button 23 LCD Displays

Button 24 LCD Displays

Button 25 LCD Displays

Button 26 LCD Displays
Basic Voice Editing Functions
The new DX offers an expanded LCD display, which makes Voice editing much easier than it was with the original DX7. A number of other basic Edit operations have also been simplified, as follows: Operator Select The parameters accessed using buttons 8 ~ 11 are adjustable for each of the six operators. In Voice Edit Mode, buttons 1 ~ 6 provide a quick way to move from one operator to another. Operator On/Off In order to adjust the settings for the six operators accurately, it is useful to focus on the sound of certain operators by turning off the output of ones not being edited. In Voice Edit Mode, buttons 17~22 provide a quick way to turn the six operators on and off.

Voice editing is much easier on the new DX, thanks to the expanded LCD display and the direct operator access provided by buttons 1 ~6 and 17 ~ 22.
EG Copy The EG Copy function from the original DX7 is retained in the new DX, and is made easier through the use of buttons 1 ~ 6. Once you have Envelope data you want to copy displayed in the LCD, simply press and hold the Store/EG Copy button. You can then choose the copy destination using buttons 1 ~ 6.

New Voice Parameters

The basic Voice of the new DX is almost exactly the same as that of the original DX7, assuring complete compatibility between the old and new instruments. To discover the additional Voice parameters of the new DX, read on. Pitch Envelope The Pitch Envelope operates as it did in the original DX7, but some new features have been added. The potential depth of the Pitch Envelope effect can now be adjusted using the Range parameter:
Maximum Pitch Change Range
6 semitones 1 octave 2 octaves 8 octaves

RNG 1/2 8

Representative Pitch Envelope Generator shape.
In addition, the Velocity parameter allows you to control the intensity of the Pitch Envelope with keyboard touch. LFO There was only one LFO in the original DX7, so all voices were affected in exactly the same way by the LFO settings. In the new DX, there are sixteen LFOs, one for each voice. Even though all sixteen LFOs must have the same settings, they can now operate independently of each other if the LFO Mode parameter is set to Multi. If Mode is set to Single, the LFO will operate as it did in the original DX7.

- 51 -

Key Modes The new DX offers two Unison Key Modes, which create fatter sounds. Since these new Modes use more than one note of the DX's sixteen-note capacity, they will affect the total number of notes available at any one time: Key Mode Polyphonic Monophonic Unison poly Unison mono Single

Voice Mode Dual

+ + + + 2 1
In Split Mode, the actual number of voices available will depend on the settings for the two voices involved. For example, if Voice A is set to Polyphonic and Voice B is set for Unison poly, a total of 10 notes can be played simultaneously (8 for Voice A and 2 for Voice B).
The new DX features an expanded set of controller options. The settings for Pitch Bend Wheel, Modulation Wheel, Aftertouch, Breath Controller, and Foot Controllers 1 and 2 are adjusted in Voice Edit Mode, using buttons 24 ~ 26. (The other controller settings are accessed in Performance Edit Mode.) Function Data and Voice Effect Data The original DX7 separated its operational parameters into two groups: Voice data and Function data. Voice data encompassed all parameters used to create a Voice, and Function data involved settings for the various performance Controllers. The DX7 only had memory to store one set of Function settings, so all Controllers operated in the same way for all Voices. In the new DX, Function data has been replaced by Voice Effect data (adjusted using buttons 23 ~ 26). This Voice Effect data can be adjusted as part of each Voice Memory this means that each Voice can have its own Controller settings. Most of the Voice Effect parameters are exactly the same as the Function parameters of the original DX7. The new parameters are outlined below. Pitch Bend Modes The Pitch Bend Wheel in the new DX functions in one of four basic Modes, which operate as follows:

Utility Buttons

All of the Memory functions (and related utility functions) are adjusted via the LCD displays called up using buttons 14 ~ 16. All of the these buttons call up multiple LCD displays. The charts below show all of the displays called up by each button, and provide a complete list of parameters and value ranges. In some cases, the first LCD display in a chart may not be the first one you see. You may need to cycle through the displays (by pressing the button repeatedly) until you reach the desired LCD display.

Button 14 LCD Displays

Button 15 LCD Displays

Button 16 LCD Displays

Memory Layout
Fractional Scaling Memory

Voice Memory

Performance Memory

System Setup Memory

Micro Tuning Memory

Memory Types

As you can see from the diagram on the facing page, there are many facets to the Memory layout of the new DX. To understand all of these types of memory, study the diagram and read the explanation below: Voice & Performance Memory This Memory block includes data for 64 Voice Memories and 32 Performance Memories, plus one System Setup Memory and two User-defined Micro Tunings. System Setup Memory System Setup Memory contains a number of basic MIDI settings, plus Master Tuning and Cartridge Bank number settings. System Setup is always retained in Internal Memory, along with the Voice & Performance Memory and the two User-defined Micro Tunings. For more information on System Setup Memory, see Section 6 of this manual. Micro Tuning Memory The DX contains eleven Micro Tunings as part of its permanent memory. In addition, two User-defined Micro Tunings are stored as part of Voice & Performance Memory. Using a RAM cartridge, it is also possible to store up to 63 Micro Tuning Memories. Fractional Scaling Memory Fractional Scaling data cannot be stored in the DX's Internal Memory. In order to use Fractional Scaling data with Internal Voice Memories, the data must reside in a RAM (or ROM) cartridge installed in the DX's cartridge port. Initialized Memory For those who wish to create Voice Memories or Performance Memories from scratch, the DX provides both Voice and Performance blank Page data as part of its permanent memory. If you want to start from ground zero (instead of working from an alreadyexisting Voice or Performance Memory), call up the DX's Init Voice or Init Performance data (using button 14 in Edit Mode).

Basic Utility Functions

Most of the basic Internal Memory Utility functions are accessed using button 14 in Edit Mode, as follows: Master Tune This sets the tuning of the DX relative to its internal A-440 reference. This setting is stored as part of the DX's System Setup Memory. Recall Edit These functions can be used to recall Voice, Performance, or Micro Tuning data from the DX's Compare/Recall Memory. Initialize These functions can be used to call up the DX's Initialized Voice or Performance Memories, if you wish to create Voice or Performance data from scratch.
Cartridge Memory Functions
RAM cartridges are useful storage centers for Voice & Performance data. In addition, they are the only storage source from which Fractional Scaling data and Micro Tuning data can be accessed for immediate use with DX Internal Voice & Performance data. To understand the basic Cartridge Utility functions, read on. Using Cartridge Data Except for the two User-defined Micro Tunings that are part of the DX's Internal Voice & Performance Memory, Cartridge Memory is the only location from which Fractional Scaling and Micro Tuning data may be recalled for immediate use. Fractional Scaling data and Micro Tuning data can be stored on disk, but cannot be used directly with Internal Memory from disk: In order to interact with Internal Voice & Performance data, Fractional Scaling and Micro Tuning data must reside in a cartridge plugged into the DX's Cartridge port. If you create Voice or Performance data that involves Cartridge Memory (for either Fractional Scaling or Micro Tuning), the DX will remind you as follows:
LCD display indicating that required Fractional Scaling or Micro Tuning data is not available. When the needed data is supplied via a RAM cartridge, these displays disappear.
This symbol signifies that the indicated Voice Memory was created with Fractional Scaling, but the RAM cartridge with the necessary Fractional Scaling data is not inserted in the instrument's cartridge port.
This symbol signifies that the indicated Performance memory was created to include Micro Tuning from a RAM cartridge, but the RAM cartridge with the necessary Micro Tuning data is not inserted in the instrument's cartridge port.

Button 31 LCD Displays

Button 32 LCD Displays

System Setup

Since the use of many basic MIDI functions might depend on the contents of a specific set of Voice & Performance data, the new DX provides a special memory location, System Setup Memory, to store basic MIDI parameters and other data in conjunction with a Voice & Performance Memory block. This System Setup Memory contains settings for the following parameters: Channel Messages This LCD display allows you to set the DX's MIDI transmission channel, MIDI receive channels (for Voice A and Voice B in Performance Mode), and MIDI Omni Mode reception (on or off if on, the receive channel settings are inactive). Note On/Off This parameter is usually set to off, meaning that all keys played produce a note. Other settings (Odd, Even) can be used in conjunction with other MIDI instruments to produce a variety of interesting effects. Program Change Transmission If the new DX is connected to another MIDI instrument, various levels of MIDI communication are possible. The MIDI Program Change Mode determines how the DX will relate to an external MIDI instrument: If Mode is set to Off, program changes on the DX will have no effect on the external unit; if Mode is set to Normal, a program change on the DX will send the same Program number to the external unit; if Mode is set to Programmable, the program changes sent will be be those programmed in the Program Change Trans LCD display. Local On/Off This parameter allows you to turn the DX's internal synthesizer on and off (as part of a MIDI system). If Local is set to Off, notes played on the DX keyboard will not engage the DX's internal sound mechanism.
Immediate MIDI Program Change Out If you wish to send a quick MIDI Program Change Message to an external MIDI unit, use the following procedure:
In any of the Play Modes (Single, Dual, Split, or Performance), press and hold the button of the current Play Mode (the one with the lit LED). You will see this LCD display:
Now, while still holding the Play Mode button, type in the program change number you desire (1~128) using the 1 ~ number buttons (1 through 0 character buttons). All three positions in the LCD must be filled: for example, to send program #1, type in 001. Once you have typed in the third number, the program change you have typed in will be sent over MIDI to the instrument connected to your DX7 II.
Control Number These parameters set the MIDI Controller numbers for external MIDI Controllers that may interact with the DX. The function of these Controllers is set via button 26 in Edit Mode. In addition, these parameters set the MIDI function of CS 1 and CS 2 (as Controllers of external MIDI instruments), and also set the Controller number of an external MIDI Controller that can be used to control the Voice parameters connected to CS 1 and CS 2 in Performance Mode. If Controller values of 5 ~ 8 are selected, only MIDI transmission is possible.

Other System Setup Parameters In addition to all of these MIDI settings, The System Setup Memory stores the Master Tune setting (button 14) and the Cartridge Bank setting (button 15). Whenever you load Voice & Performance data from Cartridge Memory or Disk Memory to Internal Memory, you have the option of loading with or without the System Setup stored with the Voice & Performance data. System Setup Data Master Tuning Cartridge Bank Number MIDI Trns ch, Rcv ch, Omni Mode Local Control Number Note on/off PC trans mode Program change out Button

MIDI Data Communications

If you use the new DX as part of a MIDI system, there are a number of advanced MIDI functions available for your use: MIDI Device Number If the DX is connected to another Yamaha product, this parameter must be used to set a Yamaha System Exclusive Device Number for MIDI System Exclusive data reception or transmission. This parameter is also used when the FD's disk drive is used as a MIDI data recorder. Receive Block This parameter allows you to set the Memory Reception block as either Internal Voices 1 ~ 32 or Internal Voices 33 ~ 64. MIDI Out These LCD displays allow you to transmit various kinds of MIDI System Exclusive data from the DX's Internal Memory to an external instrument. Obviously, these functions are useful only if you are transmitting data to another instrument (such as another DX7 II) that is capable of understanding and using it.
Appendix 1: Supplemental Information
As mentioned at the outset, this manual has not attempted to cover all of the functions of the new DX in exhaustive detail. To do so would have required a manual of large scale and density, one in which it would have been very difficult to locate specific information needed to begin using the DX. For continuing information concerning the DX7 II FD/D, consult AfterTouch, the official publication of the Yamaha Users Group. Many advanced functions will be discussed in its pages in the coming months. There will also be information concerning the availability of other material concerning more advanced applications. Some areas that will be covered in AfterTouch or in supplemental booklets include the following: Quick Reference Guide Memory Management Fractional Scaling Micro Tuning (Basic) Micro Tuning (Advanced) FM Voice Programming (Basic) FM Voice Programming (Advanced) Real-Time Parameter Changes Advanced Controller Usage Advanced MIDI Applications MIDI Technical Data & Charts To receive a free copy of AfterTouch every month, send your request to Aftertouch, P.O. Box 2338, Northiridge, CA 91323-2338. On your letter or postcard, be sure to indicate that you are the owner of a DX7 II FD/D.