Block Diagram - Yamaha RX-397 Service Manual

RX-397

BLOCK DIAGRAM

FM/AM
TUNER
FM/AM 7.2MHz
PHONO EQ
PHONO
IC301
OPERATION
• See page 30 → SCHEMATIC DIAGRAM
CD/DVD
AUX
MD
TAPE
FUNCTION
OPERATION
• See page 30 → SCHEMATIC DIAGRAM
75
IR REMOTE
U801
74,18
SPEAKER SW/STANDY SW
SW823/SW828/SW825
78,79
VOLUME
VR431, IC431
84,85
INPUT SELECTOR
SW827
KEY 94,95
SW801-818
83,100,1,2
FL DISPLAY FL DRIVER
V801 IC801
28
2,29 12,19
Motor Volume
VR431/IC431
3,28
7,24
8,23
5,26
4,27 6+9,22+25
11,20
• See page 29 → SCHEMATIC DIAGRAM
70
POWER RELEY
72
HP RERAY
76,77
SPEAKER RELEY
65
MUTE CONTROL
Microprocessor
81
M30626
POWER SAVE
IC602
SERIAL
CONTROL
13 15
XL601
16MHz
OPERATION
• See page 30 → SCHEMATIC DIAGRAM
IC401
Muting
Q401,402
/MIMT
Pure Direct SW
SW402
Tone
Con/Balance
VR751-754
RY251
MD
TAPE
TUNER/RDS
ANALOG
RY103
RY101
Power
Amp
RY102
• See page 31 → SCHEMATIC DIAGRAM
MAIN
F252
ACH
SW101
ACL
ACL
SW101
ACH
+15V
ACL
Q121
–15V
ACL
Q128
–22V
ACL
Q801
D806
Power
IC251,252,253
Detector
/Reset
Q254
s10
+5.5V
IC601
POWER RELAY
C834,835
Head Phone
Front A
C157,158
Front B
C156,159
+B
G
–B
+15
D109
G
D110
–15
VP
G
FL1
FL2
D605
+5BU
D604
+5M
Q605
D603
+5S
G
POWER SAVE