Control/Power Supply Section Block Diagram - Yamaha RX-V861 Service Manual

A B
1
OPERATION
• See page 101 →
SCHEMATIC DIAGRAM
2
IR Remote
U401
115,116
VOLUME
SW417
111,112
INPUT Selector
SW410
113,114
Tone Control
SW411
MASTER ON/OFF Switch
SW451
3
+
MAIN ZONE ON/OFF Switch
SW426
RX-V861
HTR-6080 (G model)
STANDBY/ON Switch
SW426
HTR-6080 (U, C models)
DSP-AX861SE
DSP-AX861
4 TACT Switch 133,134
SW401-422
FL Display FL Driver 110,122,129,131
V401 IC401
• See page 99, 100 →
FUNCTION
SCHEMATIC DIAGRAM
5
AC IN
IC251-253
6
7
C D

CONTROL/POWER SUPPLY SECTION BLOCK DIAGRAM

3
104
97
99-101,105,106
79-84
107
127
8
103
Microprocessor
M30878
IC301
1,4,38-40,42-45,141,144
5-10
5-9
87-90,92,94,95
61
20 22
XL81
20MHz
RY251 F2502
Power Detector
/Reset
Q2501, 2503
T2501 S10
POWER RELAY
E F
POWER
TRANSFORMER
VIDEO
• See page 103-105 →
SCHEMATIC DIAGRAM
LIMITER CONTROL
POWER RELAY
SPEAKER RELAY
MUTE CONTROL
/4ohms
XMPWR
iPod
XM (U, C models)
RDS (G, E models)
TUNER
DP_SEL
D3009
+5BU
D3008
+5.8V
+5M
IC302
D3007 Q3001,3002
U, C models
+5S
G
POWER SAVE
G H
RX-V861/HTR-6080/DSP-AX861SE/DSP-AX861
/4ohms
ACBL RY105
ACBH
ACDH
RY105
ACBL
LIMITER Limiter
CONTROL Control
Q1045-1047
Q1000
AC12 +18 +12V
Q2503,2505
AC12 -18 -12V
Q2504,2506
+5V
IC102
+5V
IC106
+3.3V
IC107
AC5
+3.3V
IC306
AC5
+5V
IC110
+5.3V
IC100
XMPWR
I J
+B
MAIN
• See page 102 →
G
SCHEMATIC DIAGRAM
-B
+BV
G
-BV
-13/-12AMP
OPERATION
• See page 101 →
SCHEMATIC DIAGRAM
FL1
FL2
+12
FUNCTION
G
• See page 99, 100 →
SCHEMATIC DIAGRAM
-12
+5D
+5V
+3.3D
G
+3.3D
G
-5V
+5I
IGND
+5.3X
XGND
79