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Yamaha tx81z Service Manual page 16

Fm tone generator
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TX81Z
jt
K
y
Micro
Tune
parameter change me$$at£$
have the following format.
1111
0000
FOh
Exclusive
01000011
43h
!,D.
number {Yamaha}
000
1
nn
n n
1
nh
Ba
sic
receive
chan
nel
Oggggghh
ggggg =
00100
(4),
hh -
00
Oppppppp
ppppppp =
1111101
ft
26)
OCT
1111110(126)
FULL
Okkkkkkk
kkkkkkk
= key
number
ohhhbhhh
hbhhhhh
=
note
C
#-1
to
C7
(T
3-1
03)
01
I
|
I
I
I
I
|
|
|
|
|
|
|
=
data
fine
tuning
0
to
+31*
-31
to
-1
(0-32,
33*63}
1
1
1
101
1
1
F7h End Of
Exclusive
Program Change
Table parameter change messages have
the following format.
The
data is0-134d, indicating the
TX81Z memory
to
be
selected
in
response to
the
incoming program change number.
0-31
(1
1-132},
32*63 (A1-A32)* 04-96
(81
B32},
96-127
(C1-C32),
128
160
(D1-D32}, 161-184 (PF1-PF24)
1H
10000
01000011
0001 nnnn
Oggggghh
Oppppppp
Okkkkkkk
Qhhhhhhh
01
1
1
1
i
i
I
11110111
FQh
Exclusive
43h
I
.
D
.
n u
mber
{
Y
amaha}
Inh
Basic receive
channel
ggggg -
00100
(4),
hh - 00
ppppppp
= 1111111
(127}
kkkkkkk
= program change
number
hhbhhhh
=
data
(high)
El
I
I
I
i
I
- data
(low)
F7h End
Of
Exclusive
BULK
DATA
MESSAGES
The
TX81Z
receives
and
transmits
10 types
of bulk data message,
Each
has
the
format
FO
(System
Exclusive},
43
(Yamaha
ID
number}. On
(bulk
data
on
channel
n),
data
size (high},
data
size
(low}, data,
checksum
(twos
complement
of the lower
7
bits
of the
sum
of
alt,
databytes),
F7 (EGX).
Some
bulk data
messages have
a
lO^character
ASCII
header.
These
characters
ore
considered
to
be
part of the
data.
*Voice
(AGED)
Additional voice parameters
for
the
TXS1Z,
f
= 126
(7
Eh)
"LM.
S986-
AE",
data
size
=
23
+
10
=
33
(0021
h}
FO.
43.
On.
7E,
00. 21
.
"LM-8970-AET (AGED
data),
checksum. F7
*1
Voice
(VCED)
Voice
parameters for
the
TX81Z.
f
=
4,
data
size
= 93
(0Q5dh)
r
total size
=
93+8=
101 (5Dh)
FO. 43, On, 03, 00,
5D,
(VCED
data),
checksum. F7
IS]
ote
These
two
bulk data messages
are
transmitted
when
a
voice
is
selected while
ir>
PLAY
SINGLE
mode,
or
when you
"Init
Voice"
or "Recall
Edit".
If
AGED
is
received alone,
the
VCED
edit
buffer
will
be unaffected.
If
VCED
is
received alone, the
AGED
edit
buffer
will
be
initialized.
16

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