Yamaha RX-V757, Service Manual

Page: 36 / 48

A B C D E F G H
1
2
3
4
5
6
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
63
■
BLOCK DIAGRAM / ブロックダイアグラム
POWER AMP
Volume IC
YAC523
IC301
MUTE CONTROL
8:2
CODEC
AK4628
IC16
D60YA003BPYP225
Main Decoder
IC5
Post Prosessor
16M SDRAM
IC6
Selector
SN74LV157APWR
IC14
ANALOG
LC89057W
DIR
IC2
RX0
RX2
RX3
RX4
RX5
RX6
RXOUT
RDA
Buffer
TC74HCT04A
*VDD=3.3V
IC1
MD/CD-R
DVD
DTV/CBL
CD
DVD
V-AUX
1B
1A
1Y
MIC in
ADL/ADR
DAFL/DAFR
DAC/DASW
DASBL/DASBR
DASL/DASR
DAPL/DAPR
FM/AM
PHONO EQ
IC833
Input Selector
BD3841FS
IC831
FL/FR
SBL/SBR
C/SW
SL/SR
Switch
NJU7311AM
IC305 (1/2)
Center
Volume IC
YAC520
IC302
IC311
IC310
Switch
NJU7313AM
IC304
IC309
IC306
IC307
IC308
DAFL/DAFR
DAPL/DAPR
DAC/DASW
IC313B
IC313A
SWFR
DASL/DASR
IC314
IC19
IC21
IC20
*Selectable
with PL/PR
or Z2L/Z2R
DIGITAL
IC17
Input Selector
AXR1(0)
AXR0(8)
Decoder
4/8M ROM
IC8
Buffer
74VHCT00AMTCX
*VDD=5.0V
IC3
MD/CD-R
Selector
SN74LV157APWR
IC7
4A
4B
4Y
2
4
5
8
9
10
AXR1(5)
AXR1(4)
AXR1(3)
AXR1(2)
AXR1(1)
21
150
147
146
145
144
IC18
Head Phone
IC26
XM
143
152
3
2
FL/FR
PL/PR
C /SW
SL/SR
SBL/SBR
27,28
25,26
23,24
21,22
6
7
8
12
9
31,32
4 3
12-9
XMDT
I2S
IC1
AK4384ET
2ch DAC
IC25
3 11,10
1
13
14
12
2ch DAC
AK4382A
IC15
D/A
PL/PR
D/A
C /SW
D/C
SL/SR
D/A
SBL/SBR
A/D
ADL/ADR
Att.
-9dB
MIC in
Switch
Q3,4,6
Zone2 Selector
BD3841FS
IC832
PHONO
CD
MD/CDR
DVD
DTV/CBL
VCR1
VCR2/DVR
MD/CDR
VCR1
VCR2/DVR
ZONE2
TUNER
ZONE2 [RX-V757 (U, C, A, G), RX-V657 (U, C, A, B, G, E) models]
TUNER [DSP-AX757SE model]
MULTI CH INPUT
REC OUT
11,20
10/21
12,19
6,25
9,22
Switch
NJU7312AM
IC303 (2/3)
7,8,24,23
Switch NJU7312AM
IC303 (3/3)
3,28
4,27
2,29
DASBL/DASBR
ADL/ADR
Switch
NJU7312AM
IC303 (1/3)
Z2L/Z2R
11/20
8/23
3/28
5/26
10/21
7/24
2/29
5,26
3,4
12
9,22
6,25
19
5
8,9
6,7
IN1,IN2
IN3
IN6
IN7
IN4
IN5
Center
Fro
n
t
Surr.
Surr.Back
9 12
10
12
8
9
1
34,33
29,28
31,30
IC312
Center
Surr.
Surr.Back
32
Front
Switch NJU7311AM
IC305 (2/2)
3,28
2,29
5,26
6,25
Muting
Q313,314
Muting
Q304,305
Muting
Q309,310
Muting
Q311,312
Muting
Q308
Muting
Q306,307
-
+
-
CENTER
FRONT
SURR.
or PRESENCE
or ZONE2
SURR.BACK
Muting
Q180,181
C871,874
C138,139
C140,141
C143,142
C145
C144,146
C144,146
PRESENCE L/R
or ZONE2 L/R
SURROUND BACK L/R
FRONT A
FRONT B
FRONT L/R
SURROUND L/R
CENTER
SUBWOOFER
RY125
RY124
RY121
RY181
RY122
RY123
SPEAKER RELEY
MUTE CONTROL
OUT1
OUT2
OUT6
OUT7
OUT4
OUT5
OUT3
V-AUX
FM/AM
TUNER
(11)
7.2MHz
Muting
Q831-834
MUTE CONTROL
NJM4556AL
RX-V757 / 657 models
U, C models
R, T, K, A, B, G,
E, L, J models
RX-V757, DSP-AX757,
DSP-AX757SE models
RX-V757 (U, C, A, G) /
RX-V657 (U, C, A, B, G, E)
models
DSP-AX757SE model
SPEAKER OUT and PRE OUT
U, C models
DSP
XM
OPERATION
OPERATION
FUNCTION
MAIN
• See page 85, 86
→
SCHEMATIC DIAGRAM
• See page 87
→
SCHEMATIC DIAGRAM
• See page 90
→
SCHEMATIC DIAGRAM
• See page 88, 89
→
SCHEMATIC DIAGRAM
• See page 95
→
SCHEMATIC DIAGRAM
• See page 88, 89
→
SCHEMATIC DIAGRAM
• See page 94
→
SCHEMATIC DIAGRAM
RX-V757, DSP-AX757, RX-V657, HTR-5860 models
FUNCTION
• See page 87
→
SCHEMATIC DIAGRAM
CONVERSION