Block Diagrams - Yamaha RX-V375U Service Manual

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■ BLOCK DIAGRAMS

1
HDMI IN 1
HDMI IN 2
HDMI IN 3
2
HDMI IN 4
HDMI SPDIF
HDMI ARC SPDIF
MAIN
–106 →
SCHEMATIC DIAGRAM (Component)
AV 1
(Optical)
(Component)
3
AV 2
(Coaxial)
(Composite)
AV 3
(Coaxial)
(Composite)
AV 4
(Optical)
(Composite)
AV 5 (Analog)
4
(Analog)
AUDIO 1
(Analog)
AUDIO 2
VAUX
(Composite)
(Analog)
Portable
5
(Analog)
AM/FM tuner
I2C0
TUN_N_INT
SPDIF
Front USB (Digital)
(Analog)
YPAO MIC
MIC_N_DET
RX-V375 (U, C, R, K, A, B, G, F, L, S, H, J models) /
HTR-3066 (U, C, R, K, A, B, G, F, L, S, H models)
6 FLD_N_RST
FL DISPLAY
FLD_N_CS
REM_IN
Remote control sensor EEPROM 32kbit
R1EX25032ASA00A
VOL_RA
VOLUME
VOL_RB
KEY1
Front Panel keys KEY2
PSW_N_DET
7
–103 →
OPERATION
SCHEMATIC DIAGRAM
C D
20-27 IN1
IC202
28-35 IN2 HDMI
Receiver/Transmitter
SiI9573CTUC
39-46 IN3
ARC
47-54 IN4 ARC SPDIF
SPDIF I2S OUT I2C2
113 114
XL201
27.0MHz
IC40
Component
Selector/Amplifier
NJM2586AVC3
5VSEL1 CPNT_ON CVBS_ON
5VSEL2
IC41
IC42
Composite
Composite
Amplifier
Selector
TC74HC4051AFEL NJM2581M
HDMI_I2S
5VSEL1CPNT_ON
5VSEL2 AUP_I2S
5VSEL3
IC243 IC242
FLASH ROM 16Mb
SDRAM 64Mb
XL261
MX29LV160DBTI-70G M12L64164A-5TG2Y
24.576MHz
39 40
34
DIR_N_RST
IC265 2
DIR_N_INT
SPDIF
DIR and ADC
DIR_I2S
PCM9211PTR
IC241
AUDIO DSP
2ch Analog D70YE101BRFP266
IC21
Selector and
E-Volume 10
VOL_SCK
11
VOL_MOSI
BD3474KS2
I2C6 I2C0
IC281 IC222
iPod authentication
USB
BU94502AMUV chip
ROHM MFI337S3959
14 15
SPI7 XL281
APL_N_RST
16.9344MHz
SPI4
IC221
1,8
E2R_N_CS
–99 →
DIGITAL
SCHEMATIC DIAGRAM
E F
HDM_CEC OSDFS_BUS_SEL
HDM_N_RST
IC204 IC201
SPI
SPI Switch
OSD Flash 16Mbit
TC7MBL3257CFT W25Q16CVSSIG
SPI7
152-159
5 DA_FL DAFL 63
IC21
130
SD0 7 DA_FR DAFR 62
Selector
and
131
SD1 11 DA_SL DASL 65
A-Filter
E-Volume
134 SD2 IC266 12 DA_SR DASR 64
AUDIO DAC
135 SD3 8 DA_C DAC 67
BD3474KS2
PCM1681PWPR
10 DA_SW DASW 66
14
DSP_N_RST
120
DSP_N_CS
107
DSP_N_INT
121
DSP_N_RDY
105 2
DSP_FMT DAC_N_CS
SPI3
<Interrupt> <Serial>
25
HDM_INT /INT0 UART1 E8A
24
HDM_MUT /INT1 SPI3 DSP/DAC/DIR
23
DSP_N_INT /INT2 SPI4 EEPROM/FL
98
USB_MCHNG /INT3 SPI7 USB controller/SPI SW
91
PSW_N_DET /INT6 I2C0 TUNER
90
REM_IN /INT7 I2C2 HDMI
IC225
I2C6 USB controller
<Timer>
32 Microprocessor
N_PDET TA1IN
30
TUN_N_INT TA2IN M16C/65 <AD Port>
26 126
DIR_N_INT TA4IN AN1 PS_PRT
R5F3651TNFC
125
AN2 KEY1
124
AN3 KEY2
123
<PIO> ROM: 768kByte AN4 THM2
72 122
J_N_DEST P4_0 AN5 THM1
RAM: 47kByte
73 121
OSDFS_BUS_SEL P3_7 AN6 AMP_OLV
120
AN7 DC_PRT
22
111
HDM_CEC CEC AN0_0 DEST_FCT
110
AN0_1 THM3
18
XL221
8.0MHz
20
G H
Speaker Relay
HP_RY
7
VOFL FL FL
MUTE
8
VOFR F_MT SPRY_F
FR FR
MUTE
5 VOC
6 VOSL
C C
MUTE
3 VOSR
C_MT SPRY_C
4 VOSW
SL SL
MUTE
S_MT SPRY_S
SR SR
MUTE
10
VOL_SCK
11
VOL_MOSI
IC27
BA4560F
MUTE
IC23–25
SW_MT
Amp block
and
Heatsink
TRANS_RY
and
AMP_LMT Main Power Supply
BA4560F
I_PRT
RY151
DC_PRT Main Power
THM1_PRT
Supply
THM2_PRT
(Power
THM3_PRT
Transformer)
AMP_OLV PWR_RY
Standby
CPU_N_RST
Power Supply
PDET_N
(Sub-transformer)
OPERATION
I J
RX-V375/HTR-3066/HTR-2866
HDMI OUT
ARC
MAIN
–106 →
SCHEMATIC DIAGRAM
MONITOR OUT
MONITOR OUT
(VIDEO)
AV OUT
AUDIO OUT
HP_N_DET
RY2
PHONES
RY1
FRONT L
FRONT R
RY4
CENTER
SPEAKERS
RY3
SURROUND L
SURROUND R
SUBWOOFER
PRE OUT
AC IN
–103 →
SCHEMATIC DIAGRAM
73