Power Supply Section Block Diagram - Yamaha RX-V373 Service Manual

A B
1
–92 →
MAIN
SCHEMATIC DIAGRAM
2
→
OPERATION
SCHEMATIC DIAGRAM
3
4
5
RY151
AC IN
6
T1501
+9.5V
Sub-transformer
9V relay
Max 9V/80mA
7
PWR_RY
C D

Power Supply Section Block Diagram

TRANS_RY
R1
ACH RY5
ACL
D19
ACL
RY5
ACH
Q21
-30V
POWER
MAIN Q1303
MAIN
D201
138mA
R2 400mA
D1308 +18V IC133
AC2 +12A
+12V
+12A
-12V
AC2
IC134
200mA -18V
POWER
D202
145mA
VIDEO
Q401
-5V
+8.5V 200mA
IC135
73.5mA
+5A
POWER
100mA
3.0W
+8.0V
IC132
R4 1000mA
AC4 +5.5U
+5V
AC4
D1307
U, C, R, K, A, B, G, F, L, S, H, J models
R5 200mA
AC5
AC5
IC264
+5D
IC263
+5HDM
5D_PON
DC-DC converter
IC268
+1.3V
DC-DC converter
IC262
F1501
+1.2V
3D_PON FET Switch
8.5V
DC-DC converter
900mA
R3 IC261
+3.3V
230mA
Power
Transformer
POWER
IC131
S9
+3.3V
E F
+B
G Power Amplifier
-B
-VP VFD Driver
28mA
280mW
+5T
+5V
AM/FM Tuner
40mA
300mW
+7A
Volume
+7V
60mA
+12A Analog Audio
30mA
AG0
Analog Audio
-12A
30mA
300mW
-7A
Volume
-7V
60mA
-5V
-5VA
104mA Analog Video
+5VA Analog Video
DSP
+5A DAC/DIR
92mA
AG1
V_BUS
1000mA USB
IGND
F1
FL Filament
F2
+5D HDMI Receiver/Transmitter
140mA LogicIC/Optical, Coaxial IN
+5HDM HDMI, +5VPOWER
200mA
+1.3H HDMI Receiver/Transmitter
1015mA
+1.2D DSP
950mA
+3.3FL VFD Driver
45mA
HDMI Receiver/Transmitter
+3.3D DSP
740mA SDRAM/FLASH
DAC/DIR
DG
DSP
Microprocessor (M16C)
+3.3M
32.7mA
DIGITAL
–87 →
MG
SCHEMATIC DIAGRAM
G H
–87 →
DIGITAL
SCHEMATIC DIAGRAM
7V to 3.3V
2.59/85 *100=3.05W
+7D IC261
BD9328FJ
(unreg)
1188mA 436mA
785mA
Q2212
2A, 380kHz
3.05W/7
3D_PON control
FET Switch
7V to 1.2V
1.14W/85 *100=1.34W
IC262
BD9328FJ
191mA 950mA
950mA (max)
2A, 380kHz
1.34W/7
7V to 1.3V
1.32W/85 *100=1.55W
IC268
BD9328FJ
221mA 1015mA (max)
2A, 380kHz
1.55W/7
7V to 5.0V
IC264
R1191N050D-TR-F
20mA
140mA 140mA
(LDO)
300mA
50mA
VIN : max 16V
Pd:420mW
50mA
20mA
5D_PON control
7V to 5.0V
200mA
IC263
+5HDM
R1191H050B-T1-F
(LDO) 200mA
Pd:900mW
+5V
+5T
Power supply to which electric power is supplied from Sub-trnsformer (Standby ON)
+3.3V
33mA
I J
RX-V373/HTR-3065
DSP/SDRAM/FLASH/DAC/DIR
+3.3D
HDMI Receiver/Transmitter
+3.3FL VFD Driver
+1.2DSP DSP
+1.3H HDMI Receiver/Transmitter
+5D Optical IN (10mA x 2)
Coaxial IN
+5D
+5D Video
+5D HDMI Receiver/Transmitter
+5VPOWER
HDMI OUT Connector
DAC/ADC
+5A
+5T Tuner
Microprocessor
+3.3M
Remote Control Sensor
67