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RX-797
30
■
BLOCK DIAGRAM
Head Phone
C834,835
C121,122
Front A
Front B
RY101
RY102
RY103
Power
Amp
C119,120
C143
C144
+B
–B
G
D116-119
+15V
–15V
–22V
Q130
Q131
+15
–15
G
C160
C161
FL1
FL2
C33
+5BUS
+5V
IC22
+5X
+3.3X
G
XMPWR
SW101
SW101
D120
R171
R172
G
Q102
VP
C803
+
D110
D121
D122
ACL
ACL
ACH
ACH
ACL2
R227
ACL2
ACL
+5V
IC27
D21
+3.3V
IC21
Q254
D259
Power
Detector
/Reset
Q252
POWER RELAY
+5.5V
IC601
Q605
G
+5S
+5M
+5BU
D605
D604
D603
POWER SAVE
RY251
s10
C261
D261
IC251,252,253
POWER RELEY
70
SPEAKER RELEY
24,25,63,65
MUTE CONTROL
81
27
POWER SAVE
XMPWR
55-60
VIDEO SELECTOR
72,76,77
Micro Processor
M30622
IC602
XL601
16MHz
TUNER/RDS/XM
ZONE2 VOLUME
SERIAL
CONTROL
ANALOG
13
15
ZONE2
MD/TAPE
VCR
VCR-REC
Muting
Q501-504
Volume IC
YAC526
IC503
RecOut
Selector
LA7956
IC452
Input
Selector
LA7956
IC451
RY251
F252
F251/J252
TE251
/MIMT
IC351
–6dB
/POMTMIMT
/Z2MT
SubWoofer OUT
Pure Direct Off
MAIN IN
PRE OUT
Muting
Q401,402
Muting
Q354-355
/CDMT
Muting
Q301,302
Muting
Q351,356
LPF/MIX
IC510,504
NJU7313AM
Motor Volume
VR431/IC431
Tone
Con/Balance
VR751-754
IC401
19,22,25
8,9,12
+10.6dB/
+16dB
19,20
13,24
15,21
25,26 REC A
23,24 REC B
3,28
2,29
8,23
4,27
11,20
5,26
7,24
10,21
1,2
3,4
5,6
9,10
11,12
13,14
15,16
7,8
INA
INB
INC
INE
INF
ING
INH
VCR
DVD
DTV
VCR
DVD
DTV
DVD
DTV
IND
Pure Direct SW
SW402
CD Direct SW
SW401
Switch
IC501
Analog
Composite
FM/AM
IC301
IC302
IC505
IC506
IC507
IC508
PHONO EQ
ATT
11dB
PHONO
DVD
CD
VCR
MD/TAPE
FM/AM
XMDT
I2S
IC1
AK4384ET
2ch DAC
IC25
IC26
IC509
XM
11,10
3
TUNER
7.2MHz
DTV
DTV/CBL
VCR-PB
DVD
PRI
80
PRV
90
PRD
91
THML
92
THMR
93
POWER
DETECT
20
/RESET
12
IR REMOTE
U801
VOLUME
VR431, IC431
INPUT SELECTOR
SW827
FL DISPLAY
V801
FL DRIVER
IC801
83,100,1,2
94,95
84,85
78,79
74,18,19
75
KEY
SW801-818
POWER SW/STANDY SW/ZONE2 SW
SW830/SW825/SW826
RecOut/Zone2 Selector
BD3841FS
IC502
6
1
MONITOR OUT
1
Zone2
Selector
LA7956
IC453
Zone2
Composite
REC OUT
1
8
4
6
8
6
8
4
CD Direct On
CD Direct Off
U, C models
XM
• See page 34
→
SCHEMATIC DIAGRAM
OPERATION
• See page 32
→
SCHEMATIC DIAGRAM
MAIN
• See page 33
→
SCHEMATIC DIAGRAM
OPERATION
• See page 32
→
SCHEMATIC DIAGRAM
OPERATION
• See page 32
→
SCHEMATIC DIAGRAM
FUNCTION
• See page 31
→
SCHEMATIC DIAGRAM
U, C models
XM
• See page 34
→
SCHEMATIC DIAGRAM