Yamaha RX-V461 Service Manual page 50

A B C
MAIN 1/2
1
POWER AMPLIFIER
-46.4
SURROUND L
-12.0
2
-12.0
3
3.3
3.3
-11.8
4
3.3
3.3
-11.8
POWER AMPLIFIER
-46.4
CB101
5
Page 73 B4
to DSP_CB501
-12.0
-12.0
6
FRONT L
CENTER
3.3
3.2
-11.8
7
-11.8
8
9
10
LIM [V] (A/D 3.3V=255)
+BV [V]
MAIN (1)
-BV [V]
D E F
IC102
47.8
47.7
47.5
47.5
1.7
IC101
47.5
47.5
47.5
47.3 47.3
46.3
47.3
LIM [V]
-47.3 -47.2
-47.0
-46.4 -47.2
-47.5
-47.5
-47.5
High Low (U, C models) Low (R, K, A, L, J models)
+3.0 to +3.3 (255) +1.20 to +1.35 (102) +1.00 to +1.20 (90)
+42.0 to +48.0 (8-ohms)
+20.0 to +23.0 (8-ohms/6-ohms) +18.0 to +21.0 (8-ohms/6-ohms)
+33.0 to +36.0 (6-ohms)
-48.0 to -42.0 (8-ohms)
-25.0 to -23.0 (8-ohms/6-ohms) -22.0 to -19.0 (8-ohms/6-ohms)
-36.0 to -33.0 (6-ohms)
G H I
FRONT L
SPEAKERS
W101A
to MAIN 2/2 W103
to OPERATION (6)_CB261
SURROUND L
CENTER
W102A
CB103
to OPERATION (2)_CB233
11.8
11.7
to MAIN 2/2
0
-12.0
0
-12.0
0.1
to MAIN 2/2
3.2
11.8
11.8
0
0.1
11.6
-12.0
11.6 -12.0
11.7 to MAIN 2/2
0
-12.0
-12.0
0
11.8 11.8
0.1
to MAIN 2/2
0.1 0.1
11.6 11.6
3.2
11.6
11.6
0
-12.0
-12.0
11.7
-26.6
to MAIN 2/2
0.1
-28.7
-27.2
-27.2
0.1
0
-47.6
47.8
0.1
J K L
FRONT A
L/R
Page 80 G2
to VIDEO (4)_CB381
Page 75 B5
Page 80 G4
IC101: STK433-330-E
to VIDEO (4)_CB382
3-channel AF power amplifier, stand-by circuit built-in
3
8
Pre
Driver
Page 76 A8
CH1
11 +
12 –
Bias Circuit
1
2
SUB
9 5 4 6 7
IC102: STK433-130-E
2-channel AF power amplifier, stand-by circuit built-in
3
8
Pre Driver
CH1
11
+
12
–
-11.8
1
2
-12.0
-12.0 SUB
10 9
0
-12.0
AC 56.3
CB104
-37.5 0
0
-37.5
# All voltages are measured with a 10MΩ/V DC electronic voltmeter.
To POWER TRANSFORMER
# Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
# Schematic diagram is subject to change without notice.
AC 70.6
M N
RX-V461/HTR-6040/DSP-AX461
Pre Pre
Driver Driver
CH2 CH3
MONO IC
+ +
– –
10 13 14151617 19 18
Pre Driver
CH2
15
+
14
–
Bias Circuit
5 4 6 7 13
77