A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
RX-V557/HTR-5850/DSP-AX557
RX-V457/HTR-5840/DSP-AX457
55
■
BLOCK DIAGRAM (2/2)
RX-V457/HTR-5840/DSP-AX457
V
S-Video
D-Tarminal Component
Composite
COMPOSITE
MONITOR OUT
S-VIDEO
MONITOR OUT
(J model)
(U, C, R, T, K, A, B, G, E, L models)
+B
G
-B
+BL
G
-BL
-VP
+12
G
-12
+9V
+5V
+5D
+3.3D
G
-5V
FL1
FL2
+5.5V
IC452
+5V
IC22
+3.3V
IC21
+5V
IC27
+5V
IC304
+12V
IC302
-30V
Q120
-12V
IC303
+3.3V
IC306
-5V
IC305
Q501
D451
D452
D453
G
+5S
+5M
+5BU
s10
+5BUS
+5X
+3.3X
G
XMPWR
Input
Selector
LA7956
IC901
Input
Selector
74HC4053
IC701
Input
Selector
74HC4053
IC851,852
D-Tarminal
MONITOR OUT
Component
MONITOR OUT
IC702
1,3,51
3,11,9
NJM2581M
IC853
1,3,51
3,11,9
NJM2581M
V-AUX
DVD
DTV/CBL
VCR
VCR
DVD
DTV/CBL
VCR
VCR
1
2
43
1
2
43
1
2
43
1
2
43
1
2
43
Y
C
1
Q903
Q605
Q606
KEY
SW803-819,823,824,866,867
Input
Selector
LA7956
IC601,602
DVD
DTV/CBL
DVD
DTV/CBL
Y,Cr,Cb
Y,Cr,Cb
L1,L2,L3
POWER RELEY
70
SPEAKER RELEY
71,72,76,77,78
MUTE CONTROL
38,39,40,42,43
81
POWER SAVE
79
/4ohms
59
XMPWR
MICRO COMPUTER
M30622
IC451
IR REMOTE
U801
POWER SW
SW861
VOLUME
SW801
INPUT SELECTOR
SW802
83,100,
1,2
94,95
84,85
88,89
74
75
XL451
16MHz
SERIAL CONTROL
DSP
TUNER/XM
SELECTOR/VOLUME
PRI
PRV
PRD
PLDET
THM
POWER
DETECT
/RESET
80
90
91
92
93
73
12
FL DISPLAY
V801
FL DRIVER
IC801
D408
D410
T401
Q401
Q404
C412
D21
C33
D313
C368
C367
D312
C366
C365
D141-144
D133
C133
C132
C119
C118
C117
C116
RY401
RY126
RY126
/ 4ohms
RY401
TE401
F2/ J401
F1
IC401,402,
403
Power Detector
/Reset
Q402,403
POWER RELAY
POWER SAVE
POWER
TRANSFORMER
15
13
(U, C models)
XM
• See page 90
→
SCHEMATIC DIAGRAM
• See page 85
→
SCHEMATIC DIAGRAM
• See page 93
→
SCHEMATIC DIAGRAM
OPERATION (1)
• See page 85
→
SCHEMATIC DIAGRAM
MAIN (2)
• See page 86
→
SCHEMATIC DIAGRAM
POWER
• See page 87
→
SCHEMATIC DIAGRAM
• See page 90
→
SCHEMATIC DIAGRAM
VIDEO
• See page 92
→
SCHEMATIC DIAGRAM
• See page 85
→
SCHEMATIC DIAGRAM
OPERATION (4)
OPERATION (2)
• See page 90
→
SCHEMATIC DIAGRAM
• See page 90
→
SCHEMATIC DIAGRAM
SUBTRANS (3)
SUBTRANS (4)
SUBTRANS (2)
• See page 90
→
SCHEMATIC DIAGRAM
SUBTRANS (1)
• See page 90
→
SCHEMATIC DIAGRAM
SUBTRANS (2)
SUBTRANS (6)