Yamaha R-S700, Service Manual

Page: 61 / 84

A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
61
MAIN
R-S700
★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
W104
CB104
CB101
CB108
W101 W105
W103
W102
CB107
CB106
IC103
IC103
IC102
IC101
SUBWOOFER OUT
OUT L
OUT L
(SHORT PLUG)
0
0
0 0 0
40.3
-41.2
22.5
-22.7
0
0
20.1 0
13.2
9.0
-41.2
0 40.3
0
0
0
0
0
5.0
0
0
5.0
20.8 20.8
-22.7
20.8
12.6 20.2
13.2
11.3
11.3
-22.7
9.0
-22.7
-22.7
-22.7
20.8
12.6
53.9
(44.0)
(-43.9)
-53.8
0
0
0
0
AC78.7
AC64.2
1.0
5.0
1.0
0
0
0
0 0 0 0 0 0
-1.6 5.0 5.0 5.0 5.0 1.0 1.0 0 0 0
-15.2 -15.2
-15.4
15.6
-15.3
0
0
0
0
0
0
0
0
-15.3
-15.3
-15.3
-15.3
0
0
0
0
0
0
-15.3
15.4
0
0
-15.3
1.0
0
0
1.0
5.0
0
1.0
5.0
0
1.0
5.0
0
54.1
53.4
53.4
52.8
0.7
52.8
52.8
-1.0
53.4
1.2
0
0
0
1.2
1.2
1.2
54.0
54.0
54.0
0
0
54.0
53.9
-53.7
0.6
-53.9
0
0
0
0
0
-0.5
-53.9
-53.9
0
-0.5
-0.5
-0.5
1.2
-1.0
-1.0
0.7
0
0.7
-52.8
-52.8
-52.8
-52.7
-53.4
-52.7
-53.4
-52.8
-52.7
0
-52.6
0
0
0
0
-52.7
-52.1
-52.6
0.6
-52.6
1.2
-52.6
-52.7
-52.1
-1.0
0
0
0
0
-1.0
-1.0
-53.9
-53.9
-53.9
-0.5
54.0
0
0
0
0
-53.7
0
0.6
54.0
0.6
1.2
54.0
0
0.6
-0.5
1.2
-1.0
52.8
52.8
53.4
53.9
1.2
0.7
0
0.7
-52.8
0.7
52.8
53.4
-52.8
-52.8
-52.7
-52.7
-53.4
-52.8
-53.4
-52.7
0
53.4
-0.5
-0.5
IC101, 102 : LM61CIZ
Temperature sensor
V+
–INPUT
+INPUT
V–
OUTPUT
IC103 : NJM4580E
Dual operational amplifier
8
2, 6
3, 5
1, 7
4
SPEAKERS
A
B
A
B
SUBWOOFER
OUT
POWER
MANAGEMENT
IMPEDANCE
SELECTOR LOW HIGH
MAIN (1)
MAIN (4)
MAIN (3) MAIN (2)
COUPLER
MAIN IN
PRE OUT
LPF
Note) Those parts marked with “#” are not included in the P.C.B. ass’y.
#
#
#
#
#
#
#
#
to POWER TRANSFORMER
to FUNCTION (1)_CB506
Page 57 L4
to OPERATION (13)_CB13
Page 60 G2
to OPERATION (2)_CB804
Page 59 F4
to OPERATION (2)_W803
Page 59 F5
Notes)
Safety measures
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t/PUFUIBUUIFDBQBDJUPSTJOEJDBUFECFMPXBSFEBOHFSPVTFWFOBGUFSUIFQPXFSJTUVSOFEPGGCFDBVTFBOFMFDUSJDDIBSHFSFNBJOTBOEBIJHIWPMUBHFDPOUJOVFTUPFYJTU
UIFSF#FGPSFTUBSUJOHBOZSFQBJSXPSLDPOOFDUBEJTDIBSHJOHSFTJTUPS LPINT8UPUIFUFSNJOBMTPGFBDIDBQBDJUPSJOEJDBUFECFMPXUPEJTDIBSHFFMFDUSJDJUZ5IF
UJNFSFRVJSFEGPSEJTDIBSHJOHJTBCPVUTFDPOETQFSFBDI
$BOE$PO."*/ 1$#
5 k-ohms
10 W
5 k-ohms
10 W