Yamaha YAS-207 Service Manual page 33

A B
1
2
3
4
5
6
• See page 45 →
SUB
CIRCUIT DIAGRAM
AC100–240V
(AC)
50/60Hz
7
C D
26MHz
Analog Signal
GPIO
DC Power Supply
Digital Bus
Digital Audio
Analog Audio
STANDBY M3V3
indicator
RED
LED4
PC7
B3V3
OLP indicator
GREEN
indicator
IC804
LED3
M3V3
PD4
MCU
Connection status indicator
STM8S003F3
PAIRING
SW2
PC5
Pairing SW PB5
PRI DET. PC3
PD6
PB4
To AMP 22V
SMPS
DC22V/3.27A
AC IN
E F
NS-WSW42
All Section Block Diagram
Y801
B3V3
RF
BT MODULE
CSRA65700
I2C
I2S
+5V B3V3 I2S
IC810 IC809
OP AMP DAC
IN OUT
DIO2032 PCM5100A
AP AN
22V
IC805
D-AMP
MUTE
TPA3116D2
STBY
FAULT
TO
DAC
TO
TO
EEPROM
OPAMP 5V
MCU
CSRA65700
M3V3 B3V3
IC807
BL9198-33 BL9198-33
LDO:3.3V
IC806
EML3193B
DC-DC Down
OUT: +5V
G H
PCB ANT.
2402MHz-2480MHz
B3V3
IC803
I2C
EEPROM
GT24C128A
DRIVER
Subwoofer
SUBWOOFER
2R/100W THD=10%
IC808
LDO:3.3V
• See page 45 →
AMP
SCHEMATIC DIAGRAM
I J
YAS-CU207/ATS-CU2070/NS-WSW42
33