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®
YAMAHA
AUTHORIZED
PRODUCT MANUAL
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YAMAHA DIGITAL PROGRAMMABLE ALGORITHM SYNTHESIZER OWNER’S MANUAL
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CONGRATULATIONS! Your Yamaha DX27 Digital Programmable Algorithm Synthesizer incorporates state-of-the-art digital FM tone generation technology, providing extraordinarily vibrant, rich voices and outstanding playability. The DX27 has a programmable 24-voice IN- TERNAL memory (RAM) from which any voice can be selected at the touch of a button, two 96-voice PRESET ROM memories (a total of 192 fine preset voices!), a 96-voice BANK memory that permits storage of PRESET voices in any configuration f
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PRECAUTIONS Avoid locations exposed to direct sunlight or other sources of heat. Also avoid 1. Location locations subject to vibration, excessive dust, cold or moisture. Do not attempt to clean the exterior with chemical solvents, as this may damage 2. the finish. Clean with a soft, dry cloth. Do not open the cabinet or attempt to make your own repairs or modifications to 3. Service and any part of the instrument. Such actions may not only result in electrical shock or damage, but will also void
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CHAPTER I: SETTING UP The DX27 has a single mono audio output for its tone generator channel. This is 1. Audio Outputs labelled OUTPUT. It permits sending a mono signal to either a mono or stereo sound system, or a mixing console for recording or PA applications. The FOOT SW phone jack is for an optional footswitch. It accepts a Yamaha FC-4 2. Optional Foot or FC-5 footswitch or equivalent for portamento/sustain control: press for por- tamento or sustain; release to damp or turn portamento off.
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NOTE: When setting up your system, be sure to turn the DX27 and any effects units used on BEFORE turning the main amplifier system on. This will prevent the initial power-on shock surge from possibly damaging your amplifier and speaker system. The music stand supplied with the DX27 fits into the two sockets on the rear panel (see diagram). 8. Music It is possible to change the “Welcome to DX!” message which appears when the 9. ID Function power is first switched ON to anything you like-your nam
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DX27 CONNECTIONS 5
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CHAPTER II: PLAYING THE DX27 The DX27 has three different voice memories which serve different purposes. They 1. DX27 Voice are: The 24-voice INTERNAL memory Configuration This voice memory is used for quick selection of voices for performance, and it is in this memory that original voices you have edited or programmed are initially stored. Cassette LOAD and STORE operations are also carried out to and from the 24-voice INTERNAL memory. Voices from the 192-voice PRESET memory may also be stored
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mode, while the second group is accessed in the SHIFT mode (these modes will be described below. These voices may be selected and stored in the BANK or INTERNAL memories as desired. They can also be directly accessed and played using the PRESET SEARCH function. The chart below shows the overall DX27 voice memory configuration. The VOICE EDIT BUFFER is a special memory into which a voice is called when selected. Whether you select a voice from the INTERNAL memory, the BANK memory, or the PRESET m
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In this mode, you can play any of the voices currently in the DX27’s 24-voice INTERNAL memory individually. The BANK PLAY mode enables you to access the 96 BANK memory locations. These initially contain the first group of 96 voices from the 192-voice PRESET 3. The BANK PLAY ROM. Using the SHIFT mode, however, you can also access the second group Mode of presets while in the BANK PLAY mode. Later, you can store any voices you like in any order in the these BANKS. While in the INTERNAL PLAY mode,
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The DX27 comes with 192 different pre-programmed voices in an internal ROM 4. The 192-Voice ( Read Only Memory). These voices can be loaded singly into the DX27’s selectable 24-voice memory, or into any location in the DX27 BANK memory. PRESET Memory THE 192 PRESET ROM VOICE NORMAL MODE VOICES The PRESET voice can also be accessed directly and played using the PRESET SEARCH function. 9
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PRESET SEARCH This function allows you to directly access the voices in the PRESET memory, in the order they appear in the PRESET memory. PRESET SEARCH is accessed in the FUNCTION mode. To enter the FUNCTION mode press the FUNCTION button. Then press any of the PRESET SEARCH se- lectors to access the corresponding voices (these are the same as the BANK A-D selectors used in the BANK PLAY mode). In the NORMAL (NON-SHIFT) mode, the PRESET SEARCH selectors call PRESET voice groups 101–124, 201–224,
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CHAPTER III: THE FUNCTION MODE The FUNCTION mode permits access to four groups of functions: tuning functions, MIDI functions, memory management functions, and performance functions. In this chapter we’ll describe each of these functions; what they do and how they are programmed. The FUNCTION mode is called by pressing the FUNCTION button. Individual 1. Accessing the parameters to be programmed are then called by pressing the appropriate voice button. Note that when the FUNCTION mode is active,
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* Note that performance parameters 13 through 24 can be individually stored for each voice. They must therefore be stored in the appropriate INTERNAL voice memory location after editing using the STORE function (see CHAPTER IV: PROGRAMMING, 4. Storing Voice Data). 13: POLY/MONO This function selects either the POLY or MONO note output mode. Voice pro- grammed with the POLY mode permit simultaneous playing of up to 8 notes. In the MONO mode the DX27 acts as a monophonic keyboard. Once the POLY/M
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15: PORTAMENTO MODE Two different portamento modes are available: Full Time Portamento and Fingered Portamento. When the POLY/MONO function is set to POLY (button 13), only the Full Time Portamento mode is accessible. In the MONO mode, you have a choice between the Full Time and Fingered portamento modes. (1) “Full T. Porta” (MONO and POLY modes): A conventional portamento effect in which portamento occurs whenever a new note is played. (2) “Fingered Porta” (MONO mode): Portamento only occurs if
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As you move the DX27 modulation wheel away from you, an increasing amount of LFO (Low Frequency Oscillator) modulation is applied to the selected voice. LFO modulation can be made to modulate the pitch of the voice, producing a range of vibrato type effects. This function is used to set the maximum depth of pitch modulation which can be applied using the modulation wheel. The actual effect produced depends on the settings of the LFO parameters, these will be discussed in CHAPTER IV: VOICE PROGRA
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The four BREATH parameters listed below determine just how the breath controller will affect the DX27’s sound. These parameters may be set individually, or combined for more complex effects. : BREATH RANGE, PITCH This function is used to set the maximum depth of LFO pitch modulation that can be applied using the breath controller. The actual effect produced depends on the settings of the LFO parameters-these will be discussed in CHAPTER IV: PROGRAMMING. Note, however, that the appropriate voice
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23: BREATH RANGE, EG BIAS This function permits breath pressure applied to the BC-1 breath controller to directly control the amplitude or timbre of the voice, according to settings of the corre- sponding voice parameters which will be covered in CHAPTER IV. The LFO has no effect-only your breath pressure directly affects the amplitude or timbre of the The data range is from 0 to 99. At 0, EG bias is OFF. A setting of 99 permits the greatest amplitude or timbre variation to be produced through t
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be used once after this function is called. Subsequent changes must be made using the DATA ENTRY slider and -1/+1 buttons after the INTERNAL PLAY mode and KEY SHIFT function have been entered in succession. NOTE: The KEY SET function can not be individually programmed for each voice. This section includes a single function: MASTER TUNE ADJ. 1: MASTER TUNE ADJ This is the DX27 MASTER TUNE function. All voices are affected simultaneously. The programmable data range is from -64 to +63. When set to
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7: INIT VOlCE This function sets all voice parameters in the voice edit buffer to their “initialized” values, permitting voice programming from an effectively neutral set of values—a “clean slate.” When this function is called, the LCD will read “Init. Voice?” Confirm your intention to initialize the voice edit buffer by pressing the +1 button. The DX27 will then ask you to reconfirm your intention to initialize the voice with “Are you sure ?” Press the +1 button again to actually execute the in
