Mitsubishi Electric DD-4030 Service Manual page 20

Power Supply Block Diagram
CAUTION !
Switching power supply circuit is used in this unit.
If Main Fuse (F1001) is blown, check to see that all components in the
power supply circuit are not defective before you connect the AC plug to
the AC power supply. Otherwise it may cause some components in the
power supply circuit to fail.
HOT CIRCUIT. BE CAREFUL.
D1001, D1002
AC1001
L1001 D1004, D1005
AC CORD F1001
1A 250V
LINE
FILTER RECTIFIER
F
A V
Q1008
LATCH
1-7-11
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
F
REPLACE ONLY WITH THE SAME TYPE FUSE.
A V
ATTENTION : POUR UNE PROTECTION CONTINUE LES RISQES
D'INCELE N'UTILISER QUE DES FUSIBLE DE MEMO TYPE.
RISK OF FIRE
BRIDGE
Q1003 Q1001
SWITCHING
SWITCHING
CONTROL
HOT
AV CBA
-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
T1001
D1003
2 11 RECTIFIER
D1030
12 RECTIFIER
D1008
SCHOTTKY
4 13
BARRIER
D1009
14 RECTIFIER
D1013
SCHOTTKY
15
BARRIER
16
D1016
7 17 RECTIFIER
6 18
IC1001
ERROR
VOLTAGE DET
4 1
3 2
IC1006 REG
(SHUNT REGULATOR)
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Q1007
IC1003
(SHUNT REGULATOR)
REG
IC1002
CN1001
+1.8V
REG.
Q1004
Q1011
Q1005
-FL
F2
F1
P-ON+3.3V
P-ON+5V
Q1002 EV+3.3V
P-ON+12V
EV+5V
Q1006
Q1014
5V
REG.
1-7-12
1 P-ON+1.8V
2 P-ON+1.8V
3 EV+2.5V
4 EV+2.5V
5 P-ON+5V
6 P-ON+5V
14 EV+9V
15 EV+9V
16 EV+3.3V
17 P-ON+3.3V
18 P-ON+3.3V
19 P-ON+3.3V
20 PWRCON
E5640BLP