Yamaha RX-V381, Service Manual

Page: 73 / 138

J I H G F E D C B A
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2
3
4
5
6
7
J I H G F E D C B A
1
2
3
4
5
6
7
73
RX-V381/HTR-3069
Speaker Impedance relay
+3.3M CPU (IC221),EEPROM(IC224)
+B
Control Circuits Around CPU
R1 Remote/Key Input/Rotary Encoder (PCB OPE)
RY5
D47
C79
IC261
C80
+7D
+3.3D
FLASH ROM(IC222)
RY5
HDMI (IC201), AUP DSD SW(IC202)
-B
DIR (IC265)
DSP(IC241)
Optical In, Coax In, Buffer (PCB MAIN)
+3.3D
Q77
+40F
Power Amplifier
Power Amplifier
FL Driver (PCB OPE)
Q2604
+3.3DAC
SP1DSP (IC241), FLASH ROM (IC242), SDRAM (IC243)
DAC (IC266)
C87
+3.3USB ※ Except for JUCA dest. Models
IC523
+BT_3.3V
+5A
+3.3D
3D_PON
Power Transformer
FL_PON
(From PCB DIGITAL)
DAC_PO
+5VA +3.3S
IC262
+1.2DSP
Q5204
TUNER_VCC
Composite Video
Tuner
IC268
+1.1H
Q80
+7A Electronic Volume
IC204
+5V
IC521
+12A
R2
C5214
D5208
+5A
USB Controller (IC281)
Bluetooth Module
FL Driver (PCB OPE; IC401)
DSP (IC241)
+1.1HHDMI (IC201)
HDMIout Connector (+5VPower)
ADC(IC265)
DAC (IC266)
C5215
-12A
IC522
R5222 -7A
Ope-Amp/Relay
Ope-Amp/Relay
Electronic Volume
C5225
+12A
-12A
+5V
5D_PON
+1.1H
+1.2DSP
3D_PON
3D_PON
Q81
R3
C5219
D5209
IC526
IC402
USB Power Supply
R4
C5224
D5212
+5.5U
+5V
R5
F1
F2
FL Filament
FL Filament
T5401
AC IN
D5405~5408
RY541 F5401
IC525
C5403
C5402
RY541
PRY
Q5401
+3.3M
Sub-Transformer
T, R, K, B, G, F, L, V, S models
・
See page 94–95
→
SCHEMATIC DIAGRAM
・
See page 89–93
→
SCHEMATIC DIAGRAM
・
See page 96–98
→
SCHEMATIC DIAGRAM
MAIN
OPERATION
DIGITAL
Power Supply Section Block Diagram