Block Diagram - Yamaha RX-V557 Service Manual

A B
RX-V557/HTR-5850/DSP-AX557
RX-V457/HTR-5840/DSP-AX457
1

BLOCK DIAGRAM (1/2)

RX-V557/HTR-5850/DSP-AX557
DSP LC89057W
• See page 81, 82 → SCHEMATIC DIAGRAM
4
RX2
MD/CD-R
5
DVD RX3
8
2 DTV/CBL
RX4
Buffer
9
CD RX5
TC74HCT04A
*VDD=3.3V 10
RX6
IC1
1
RXOUT
Buffer
74VHCT00AMTCX
MD/CD-R
*VDD=5.0V
IC3
XM
• See page 93 → SCHEMATIC DIAGRAM
3 (U, C models)
XMDT
I2S
XM
IC1
(RX-V557)
AK4384ET IC26
31
1,10
2ch DAC
IC25
FM/AM
TUNER
(11)
FM/AM
7.2MHz
TUNER
4
OPERATION (4)
• See page 84 → SCHEMATIC DIAGRAM
CD
MD/CDR
V-AUX
DVD
5
DTV/CBL
VCR
MD/CDR
VCR1
6
Muting
ZONE2 Q751,752,
754,755
MUTE CONTROL
RX-V557 (U, C, A, B, G, E models)
FL/FR
C/SW
SL/SR
7
52
C D
DIR
IC2
D60YA003BPYP225
Main Decoder
IC5
143 AXR1(0)
(R, T, K, A,
B, G, E, L, J models)
21
RDA
152 AXR0(8)
(U, C models)
16M SDRAM 4/8M ROM
Selector IC6 IC8
SN74LV157APWR
14 12
IC7
4A 4Y
13
4B
23,24 26-30,32
12,13 Tone
Control
Center
2-11,74,75
Surround L/R
Surround Back
SW
76-79 15-19,21
SUBTRANS (7)
• See page 88 → SCHEMATIC DIAGRAM
E F
Selector
SN74LV157APWR
3
IC14
1B
4
1Y
2
1A
AXR1(5)
FL/FR
6
27,28
D/A
PL/PR
AXR1(3)
7
C/SW 25,26
D/A
C/SW
AXR1(2)
8
SL/SR 23,24
D/A
SL/SR
AXR1(1) 12
SBL/-
D/A 21
SBL/-
31,32 IC18
9
A/D
ADL/ADR
8:2
CODEC
AK4628
IC16
Muting
Q309,310
IC303
53,54
Center Mix
LFE Mix
51
Muting
49,50 Q302,303
48
46
SELECTOR / VOLUME
BD3816K1 IC301 Muting
Q306
Muting
Q301,304
Muting
Q305
IC304
Muting
Q311,312
MUTE CONTROL
FUNCTION
• See page 83 → SCHEMATIC DIAGRAM
G H
IC306
DAPL/DAPR
IC19
DAC/DASW
IC21
DASL/DASR
IC20
DASBL/-
Att. ADL/ADR
-9dB
OPERATION (3)
• See page 84 → SCHEMATIC DIAGRAM
IC305
C871,874
NJM4556AL
RY125
C138,139
RY124
FRONT
C140,141
RY123
CENTER
C145
RY121
SURR.
C143,142
RY122
SURR.BACK
C144
POWER AMP
SPEAKER RELEY
MAIN
• See page 86 → SCHEMATIC DIAGRAM
I J
Head Phone
Front A
Front B
Center
Surround L/R
Surround Back
Sub Woofer