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Yamaha DX27 EN User Manual

Page 50

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2-2 System lnformafion

2-2-1 System Real-Time Message

Active sensing
Status 11111110(FE)

Transmitted once approximately every 200 milliseconds

2-2-2

System Exclusive Message

Transmitted only when MIDI SYS INFO is ON

(1) Parameter Change

Status 11110000(F0)

ID no. 01000011(43)

Substatus/ch. no. 0001nnnn(1n) n=channel no.

Parameter group no. 00010010(12)
Parameter no.

0ppppppp

Data 0ddddddd
EOX 11110111(F7)

This data is transmitted when voice or function Parameters are changed in the EDIT

or FUNCTION modes. The voice parameters transmitted are those given in voice
parameter table 5-2, and the function parameters transmitted are shown in
function parameter table 5-3.

(2) 1 Voice Bulk Data

Status 11110000(F0)

ID no. 01000011(43)

Substatus/ch. no. 0000nnnn(0n)

Format no. 00000011(03)
Byte count 00000000(00)
Byte count 01011101 (5D)
Data 0ddddddd

n=channel no.

93 bytes

0ddddddd

Checksum

0eeeeeee

EOX 11110111(F7)

The data for one voice is transmitted when a voice selector is pressed in the PLAY

mode. Data in the voice edit buffer is transmitted when a format no. f=3 dump
request is received. The transmitted data is shown in voice parameter table 5-2.

The checksum is the lowest 7 bits of the two’s complement sum of all data bytes

(the same applies below).
Functions not available on this unit are set as follows:

CHORUS: 0
PEG PRI=99, PR2=99,

PL1=50, PL2=50,

FOOT VOLUME RANGE = 99

PR3=99
PL3=50

(3) 32 Voice BULK Data

Status

ID no.

Substatus/ch. no.

Format no.
Byte count

11110000(F0)
01000011(43)
0000nnnn(0n) n=channel no.
00000100 (04)
00100000 (20)

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