Yamaha MCX-1000 Service Manual page 57

A B
1
BLOCK DIAGRAM
SUB
TRANSFORMER
2
AC
INPUT
3
4
AC RELAY
5
6
POWER
7
C D E
+6.5V
+6.5V
supply
(Unreg.)
+12V
+12V
supply
(Unreg.)
-29V
-29V
supply
AC
MAIN
+3.7V
AC+3.7V
TRANSFORMER
supply
+5V
+5V
supply
+3.3V
+3.3V
supply
-5V
-5V
supply
+5V
supply
+12V
supply
+12V/9V
supply
F G
+3.3V
supply
+5V
Sub
+5V
CPU
supply
SH3
+2.5V
+2.5V
supply
FPGA
+1.8V
+1.8V
supply
HD64480F
+1.6V
+1.6V
supply
DSP
MAIN
H I
+3.3V
Wireless
LAN Card
+5V
(unswitched)
IR Unit
+5V
KEY,
STANDBY KEY
+3.3V
LED
-29V
AC
+3.7V M66005
FL
Display
FL,PSW,KEY
+5V
AK4528
-5V
AK4528
AUDIO,HP
+5V
CDR/RW
+12V
drive
+5V
HDD
+12V
drive
+12V / 9V / OFF
FAN
motor
enable to power-off block
J
MCX-1000
57