Yamaha RX-V757 Service Manual page 37

A B
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
BLOCK DIAGRAM / ブロックダイアグラム
1
OPERATION
• See page 88, 89 →
• SCHEMATIC DIAGRAM
FUNCTION
V-AUX
SUBTRANS
Input
DVD
Selector V
• See page 92, 93 → SCHEMATIC DIAGRAM
74HC4051
DTV/CBL
IC901
VCR1
1
VCR2/DVR
2
IC902
11,13 7,4
VCR1
2
LA7108M
VCR2/DVR
4 3
V-AUX
2 1
4 3
DVD
2 1
Y
Input
Selector
4 3
DTV/CBL
74HC4051
C
2 1
IC601,602
4 3
VCR1
2 1
4 3
VCR2/DVR
2 1
3
23,33 IC605
4 3
VCR1
2 1
14,4
LA7109
25,35 IC605 11,1
VCR2/DVR 4 3
2 1
LA7109
DVD Y,Cr,Cb
DTV/CBL
Y,Cr,Cb
DVD
DTV/CBL
L1,L2,L3
4
OPERATION
• See page 88, 89 → SCHEMATIC DIAGRAM
IR REMOTE
U801
POWER SW
SW861
88,89
VOLUME
SW801
84,85
INPUT SELECTOR
SW802
5
86,87
TONE CONTROL/ DSP PROGRAM
SW803
RX-V757, DSP-AX757, DSP-AX757SE, RX-V657 models
KEY SW806-814,816-819,824
94,95
HTR-5860 model
KEY SW804-811,816-819,866,867
83,100
,1,2
FL DISPLAY FL DRIVER
V801 IC801
SUBTRANS
64
6
C
• See page 87 → SCHEMATIC DIAGRAM
IC607(2/2)
Y 12
Selector
Y/C Mix 74HC4053 14
C 13
TK15420MTL IC604
Q604,605
(3/3)
Selector OSD
74HC4053 15 LC74781
IC604 -9798
(1/3) IC606
3
15
IC607(1/2) IC609(1/2)
Blanking
5 4 1
74HC4053
Selector
IC604
12 74HC4053
(2/3)
TK15420MTL TK15420MTL
IC603
14
IC609(2/2)
13
TK15420MTL
4 40
3
Chroma
Decoder
5 15 6 TA1270BF
Y
Y/C Sep IC711
2
TC90A49F C
IC705
1
CONVERSION
• See page 94 → SCHEMATIC DIAGRAM
Y,Cr,Cb
IC703
1,3,5
NJM2581M
Input
Selector
74HC4052
IC701,702
704
75
70
71,72,76,77,78
74
38,39,40,42,43
81
79
MICRO COMPUTER
32
M30622
59
IC451
SERIAL CONTROL
13 15
XL451
16MHz
• See page 92, 93 → SCHEMATIC DIAGRAM
D E
RY401 F1
V
Y
4 3
2 1
C
1H Delay
Line
TA8772AN
IC710
R, T, A, B, G, E, L models
13,11,9
POWER RELEY
SPEAKER RELEY
IC401,402,
40,3
MUTE CONTROL
POWER SAVE
/4ohm
/PURE
XMPWR
DSP
TUNER/RDS/XM
VIDEO CONVERSION
SELECTOR/VOLUME
ZONE2 SELECTOR
RX-V757 (U, C, A, G, E) /
RX-V657 (U, C, A, B, G, E) models
F
POWER
TRANSFORMER
/4ohms
RY126
RY126
-30V
Q120
+9V
IC712
+12V
IC302
-12V
IC303
+5V
IC713
+5V
IC304
+3.3V
IC306
-5V
IC714
+5V
IC27
+5V
IC22
+3.3V
IC21
Power Detector
/Reset
Q402,403
D453
T401 D452
s10
+5.5V
IC452
D451
POWER RELAY POWER SAVE
G H
MAIN
+B • See page 90 →
SCHEMATIC DIAGRAM
G
-B
+BL
G
-BL
-VP
+9V
POWER
• See page 91 →
SCHEMATIC DIAGRAM
+12
G
-12
+5V
+5D
+3.3D
G
-5V
+5BUS
XM
U, C models
• See page 95 →
+5X
SCHEMATIC DIAGRAM
+3.3X
G
FL1
OPERATION
• See page 88, 89 →
FL2
SCHEMATIC DIAGRAM
+5BU
+5M
Q501
+5S
G