Power Supply Section Block Diagram - Yamaha RX-V381 Service Manual

A B
1
2
・See page 96–98 →
MAIN
SCHEMATIC DIAGRAM
・See page 94–95 →
OPERATION
SCHEMATIC DIAGRAM
3
4
5
6 AC IN
Sub-Transformer
T5401
7
C D
Speaker Impedance relay
Power Transformer
R1
RY5
D47 C79
C80
RY5
Q77
C87
IC523
+5A
R2
C5214
D5208
C5215
R5222
C5225
R3
C5219
D5209
R4
C5224
D5212
R5
RY541 F5401
D5405~5408
C5403
RY541
C5402
PRY
Q5401
E F

Power Supply Section Block Diagram

+B Power Amplifier
+7D
-B Power Amplifier
+40F FL Driver (PCB OPE)
FL_PON
(From PCB DIGITAL)
+5VA Composite Video
Q5204
TUNER_VCC Tuner
Q80
+7A Electronic Volume
IC521
+12A Ope-Amp/Relay
+12A
-12A Ope-Amp/Relay
-12A
IC522
-7A Electronic Volume
Q81
IC526
IC402
USB Power Supply
+5.5U +5V
T, R, K, B, G, F, L, V, S models
F1 FL Filament
F2 FL Filament
IC525
+3.3M
G H I
+3.3M CPU (IC221),EEPROM(IC224)
Control Circuits Around CPU
Remote/Key Input/Rotary Encoder (PCB OPE)
IC261
FLASH ROM(IC222)
+3.3D +3.3D
HDMI (IC201), AUP DSD SW(IC202)
DIR (IC265)
3D_PON
DSP(IC241)
Optical In, Coax In, Buffer (PCB MAIN)
+3.3D SP1DSP (IC241), FLASH ROM (IC242), SDRAM (IC243)
Q2604
+3.3DAC DAC (IC266)
DAC_PO
+3.3USB USB Controller (IC281) ※Except for JUCA dest. Models
+BT_3.3V Bluetooth Module
+3.3S FL Driver (PCB OPE; IC401)
IC262
+1.2DSP DSP (IC241)
+1.2DSP
3D_PON
IC268
+1.1H +1.1HHDMI (IC201)
+1.1H
3D_PON
IC204
+5V HDMIout Connector (+5VPower)
+5V
5D_PON
+5A ADC(IC265)
DAC (IC266)
・See page 89–93 →
DIGITAL
SCHEMATIC DIAGRAM
J
RX-V381/HTR-3069
73