Download Print this page

Yamaha tx7 Service Manual page 24

Fm tone generator
Hide thumbs Also See for tx7:

Advertisement

DM
1
1
as
Isr
l
1
j
n
w
CAS
:
BATCH
'
(C2'10)RS$)
(C2-6)*I$)
(C2-4)
CAS
)
I
(C2-8)BflTC*Q
Duty
Converter
lew
±-M<
CC
4
-
14
)
1
C 3
t
/2
CL
Q
PR
CK
0
Q
s
££,
cci-is)
9
.
4
Z
6
SMHI
Master
Clock
9.426
6HHt
rIDH
1C9
2/2
0.1
IC11
icil
i
K^
2
lm
\!2
System Reset
as?
S?
g
°
la
t
u
+5:
Enre
lope
Sen
era
Tor
Operator-
$
Reset
1 C
System
Program
ROM
yR£SJCjjl£l
>gg5
(cz-i)
,
MS
(C2-3)
'
.BATCH
(CZ-3)
'Ml
•9,
^
63
64
VR
Control
+ 15
pHS
cpZ
$51
$2
'
Buffer
icz
2
jl
12
01
Buffer
I
IC23
F2
W
R
f
3
WK
F4
F 6
F6
FT
FS
FQ
FH
Fll
IC20
Z
vop
VM2129
w
EGrS
£C1
EC2
s£>g
|(C4-75;
iw>
KcT-
7
}
<o
24
73
26
74
2
T
15
28
16
24
12
30
74
33
Z 0
34
21
35
22
36
23
37
24
32
25
34
26
41
43
42
44
43
45
44
46
45
47
46
02
47
41
48
50
44
51
50
52
51
53
52
54
j
n.
FI
FZ
F3
F4
FS
F6
FT
FS
F<\
Fit
Fll
FU
ICZ
1
FH
YMZ
12
?
SW
ECl
OPS
Ec z
$5200
Hgrs
*'
1
!£E
it
i
r>
l>
m
2
_r>
40
_L|>
47
_nj>
4
Z
_!
3
|>
3
?
1
37
2
36
3
35
4
34
5
33
6
32
7
31
8
3
#
4
22
_
70
28
77
.22
12
12
SH2.
+ 7Slf
Regulator
k^p
1
^
j_TC3j>^-
2/2
H
hfe
—7 C
*.
i
p/g/ta!
to
Analog
1
Nte
Converter
Buffer
560
®
1/4P
**
r£>r
Compander
IC26
IHx
a*
ij#
IC24
"I
wc
P4C
VREF+
75 10
K
76_
i
GrND
VEE
j
13|
V
Mft
IYC7-3)
Vss
Vdd
£
T*
N
'
T 7
i
?
k
?n
I
^
I
O-I
SI
? ^
W)
00
ml
m|mlrr>Jnr>
m|m
<0
o O o o o O
o
~
O
<o
O
Co
Cj
O
Co
QJ
H
ol
LsUlsl
Battery
Voltage
Comparator
S
53
S
2
SSS
<jO
^
Csi
»-s
^
^
^
o-
00
C-
U)
2 2
3
L
3
o
s
3
la
70*
3
1
®
+
15
'iciVt>:
+
15
rci§*"
^7
-75
BATCH'
^
J
U
1
o
*
b^i4
l«S
-75
x
A
+
5
Photo Con
duo tor
Back Up
Battery
P23
lil
I
r
jl
i
A
st
Ma
In
CPU
4.
gfe
I
f
7
f
124
^
|t2
1
24
**
1
72
|24
»Hl
2
124
IjJTjT^ss
^pp
!
vis
VOP
i
vss
Vdd
J
vss
Vpo
MIDI
C/ook
S00KHI
HOh
4.71
MHt
-f:
EXTAL
-r^
air
IC
13
ic:
14-
7
2
r— >
2 ^ 2 #

Advertisement

loading