Yamaha WXA-50 Service Manual page 36

A B
WXA-50/WXC-50
1
AC IN
2
3
4
WXA-50
5
6
7
36
C D
Power Supply Section Block Diagram
IC604
R1515H120B
+12V
EPM
1510SJ
Power amplifier
BD9D321EFJ
E F
MAIN (2)
TRG_OUT
• See page 49 →
WXA-50:
SCHEMATIC DIAGRAM
• See page 52 →
WXC-50:
SCHEMATIC DIAGRAM
R1191H090B
BD00GA3WEFJ
IC8
RP130K331D
+3.3S
Microprocessor
IC7
RP130K331D
+3.3M
Microprocessor
IC6
IC202
R5527K001D
+5V +5DSP
Opt I/O
Coax out
IC208
RP132H331D
+3.3DSP
Main DSP
IC212
DAC (feedback)
RP115H181D Selector
+1.8DSP
Main DSP
FAN
DIR
G H
IC501
+9V
Operational amplifier
+ -
Operational amplifier
IC213
+5A
DIR
IC201
RP130K331D
+3.3DAC
ESS-DAC
IC209
RP115H331D
+3.3DAC
IC214
ESS-DAC
LXDC2HN12F
+1.2ESV
ESS-DAC
ESS-DAC
IC206
R5527K001D
+5N
Network
IC211
R5524N004A
VBUS
USB
MAIN (1)
• See page 47, 48 →
WXA-50:
SCHEMATIC DIAGRAM
• See page 50, 51 →
WXC-50:
SCHEMATIC DIAGRAM
I J