Yamaha DSP-AX757 Service Manual - Page 36
Browse online or download pdf Service Manual for Receiver Yamaha DSP-AX757. Yamaha DSP-AX757 49 pages. Av receiver/av amplifier
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A
B
BLOCK DIAGRAM / ブロックダイアグラム
1
2
RX0
V-AUX
4
RX2
MD/CD-R
5
RX3
DVD
8
RX4
DTV/CBL
Buffer
9
RX5
TC74HCT04A
CD
*VDD=3.3V
10
RX6
DVD
IC1
2
1
RXOUT
Buffer
74VHCT00AMTCX
MD/CD-R
*VDD=5.0V
IC3
XM
• See page 95 → SCHEMATIC DIAGRAM
U, C models
XMDT
XM
I2S
RX-V757 / 657 models
IC1
AK4384ET
3
11,10
2ch DAC
IC25
RX-V757, DSP-AX757, RX-V657, HTR-5860 models
FM/AM
TUNER
3
FM/AM
(11)
7.2MHz
PHONO EQ
PHONO
IC833
RX-V757, DSP-AX757,
DSP-AX757SE models
CD
FUNCTION
• See page 87 →
SCHEMATIC DIAGRAM
MD/CDR
OPERATION
V-AUX
• See page 88, 89 →
SCHEMATIC DIAGRAM
DVD
4
DTV/CBL
VCR1
VCR2/DVR
RX-V757 (U, C, A, G) /
RX-V657 (U, C, A, B, G, E)
models
MD/CDR
CONVERSION
VCR1
• See page 94 →
SCHEMATIC DIAGRAM
VCR2/DVR
ZONE2 [RX-V757 (U, C, A, G), RX-V657 (U, C, A, B, G, E) models]
TUNER [DSP-AX757SE model]
Muting
ZONE2
5
Q831-834
TUNER
MUTE CONTROL
FL/FR
C/SW
SL/SR
SBL/SBR
6
C
DSP
• See page 85, 86 → SCHEMATIC DIAGRAM
LC89057W
DIR
IC2
D60YA003BPYP225
Main Decoder
IC5
143
AXR1(0)
R, T, K, A, B, G,
21
E, L, J models
RDA
152
AXR0(8)
U, C models
16M SDRAM
4/8M ROM
IC6
Selector
SN74LV157APWR
14
12
IC7
4A
4Y
13
4B
IC26
FUNCTION
• See page 87 → SCHEMATIC DIAGRAM
DAFL/DAFR
IC311
7,8,24,23
9,22
6,25
DAPL/DAPR
ADL/ADR
11,20
12,19
10/21
11/20
DAC/DASW
12
8/23
DASL/DASR
Center
9,22
8,9
3/28
DASBL/DASBR
Surr.
6,25
6,7
Surr.Back
*Selectable
with PL/PR
5/26
Z2L/Z2R
or Z2L/Z2R
IC308
10/21
19
12
IC306
7/24
IC307
2/29
D
E
Selector
SN74LV157APWR
3
IC14
2ch DAC
1B
4
3
12-9
1Y
AK4382A
2
1A
IC15
AXR1(5)
FL/FR
150
AXR1(4)
6
27,28
PL/PR
D/A
147
PL/PR
25,26
AXR1(3)
7
C /SW
D/A
146
C /SW
AXR1(2)
8
23,24
SL/SR
D/C
145
SL/SR
AXR1(1)
12
21,22
SBL/SBR
D/A
144
SBL/SBR
31,32
9
A/D
ADL/ADR
8:2
CODEC
AK4628
IC16
IC8
3,28
IC310
4,27
IC309
2,29
3,28
5,26
IN1,IN2
34,33
OUT1
2,29
6,25
5
+
OUT2
IN3
Front
-
IC312
Volume IC
IN6
OUT6
29,28
YAC523
IN7
OUT7
Surr.
IC301
IN4
OUT4
31,30
IN5
OUT5
Surr.Back
OUT3
Center
9
Center
10
8
IC313B
12
-
1
IC313A
SWFR
9
F
RX-V757/DSP-AX757/DSP-AX757SE
OPERATION
• See page 88, 89 → SCHEMATIC DIAGRAM
IC17
DAFL/DAFR
DAPL/DAPR
IC19
DAC/DASW
IC21
DASL/DASR
IC20
DASBL/DASBR
IC18
Att.
ADL/ADR
-9dB
MIC in
MIC in
Switch
Q3,4,6
IC314
NJM4556AL
RY125
RY124
FRONT
Muting
Q180,181
SURR.
RY121
Muting
Q313,314
RY181
Muting
Q304,305
SURR.BACK
RY122
Muting
Q309,310
or PRESENCE
Muting
or ZONE2
Q311,312
RY123
Muting
CENTER
Q308
SPEAKER RELEY
POWER AMP
Muting
Q306,307
MUTE CONTROL
MAIN
• See page 90 → SCHEMATIC DIAGRAM
G
H
RX-V657/HTR-5860
C871,874
Head Phone
FRONT A
C138,139
FRONT B
C140,141
FRONT L/R
MUTE CONTROL
C143,142
SURROUND L/R
PRESENCE L/R
or ZONE2 L/R
C144,146
C144,146
SURROUND BACK L/R
C145
CENTER
SUBWOOFER
63