Yamaha A-S700 - Amplifier, Service Manual

Page: 46 / 61

CB801
CB802
CB803
CB808
CB807
CB809
CB806
W814
W802
W801
CB804
CB811
CB812
IC806
W804
W803
W806
CB814
CB815
CB813
W808
W811
JK801
CB816
IC804
IC805
IC805
IC804
CB805
IC802
IC802
IC802
IC803
W805A W805B
IC803
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
A-S700
46
OPERATION
13.0
-14.7
-14.7
0
0
0
0
0
0
0
0
0
0
0
0
14.7
0
0
0
0
0
0
14.7
0
0
0
0
0
0
0
14.7
0.8
0.8
-14.5
0
0
4.4
0.2
0
14.4
5.0
15.1
2.1
4.7
0
5.0 4.7
0.2
-14.5
-14.5
0
0.6
0.4
1.8
0
14.7
0.8
0.6
4.8
3.4
0
14.7
0
3.4
4.8
3.4
0
0
3.4
4.8
3.4
0
0
3.4
4.8
3.3
0
0
3.3
4.8
3.0
0
4.7
0
4.8
3.4
0
0
3.4
4.8
3.4
0
0
3.4
4.8
3.4
0
0
3.4
0
0
-13.2
0
0
0
4.7
0
0
0
0
0
0
0
0
14.7
-14.5
-14.7
-14.7
4.8
-14.7
0
CD IN
CD IN
TUNER IN
MIX IN
PD IN
OUT L
TONE IN
TONE IN
TONE OUT
TONE OUT
TONE IN
(PURE DIRECT)
VOL OUT
VOL IN
VOL OUT
(CD DIRECT)
OPERATION (1)
OPERATION (5)
OPERATION (4)
OPERATION (3)
OPERATION (2)
OPERATION (6)
OPERATION (7)
OPERATION (8)
OPERATION (10)
OPERATION (9)
OPERATION (11)
VOLUME
CD DIRECT AMP
PURE DIRECT
VOLUME
BALANCE
REC OUT
PHONES
CD DIRECT AMP
indicator
PURE DIRECT
indicator
INPUT selector
INPUT indicators
PHONO TUNER LINE1 CD LINE2 LINE3
SPEAKERS
LOUDNESS
TREBLE
BASS
INPUT
POWER
IC806 : LB1641
Motor driver
INPUT LOGIC IN 1
IN 2
VZ
P1 P2 OUT 1 OUT 2 VCC 2 VCC 1
GND
PRE DRIVER
1
3 2 8 10 9 7
4
6 5
IC802-804 : NJM2068MD-TE2
Dual operational amplifier
OUT 1
OUT
2
–IN
1
+IN 1
+IN
2
-IN 2
–V
CC
+V CC 1
2
3
4
8
7
6
5
+ – + –
IC801, 805 : OP275GSR
Dual bipolar/JFET, audio operational amplifier
OUT A
-IN A
V-
V+
OUT B
1
2
3
4 5
+IN A -IN B
+IN B
6
7
8
to FUNCTION (2)_CB606
P
age 45
I2
to FUNCTION (2)_W601
P
age 45
G4
to FUNCTION (2)_CB611
P
age 45
G3
to FUNCTION (2)_CB607
Page 45 K2
to MAIN (4)_CB283
Page 47 B2
to FUNCTION (2)_CB609
Page 45 M5
to MAIN (1)_CB103
Page 47 B7
to OPERATION (1)_W814
F4
to OPERATION (11)_CB805
L3