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Power Supply Block Diagram
CAUTION !
Fixed voltage ( or Auto voltage selectable ) 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
D1004, D1005
AC CORD
F1001
L1001
T1.6A L 250V
LINE
BRIDGE
FILTER
RECTIFIER
Q1003
SWITCHING
Q1008
LATCH
HOT
1-6-7
T1001
2
Q1001
SWITCHING
4
CONTROL
7
6
IC1001
ERROR
VOLTAGE DET
4
3
AV CBA
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE.
D1003
11
RECTIFIER
D1006
IC1002
SCHOTTKY
+1.5V
12
BARRIER
REG.
D1008
SCHOTTKY
13
BARRIER
D1030
14
RECTIFIER
15
16
D1016
Q1005
17
RECTIFIER
Q1015
18
Q1016
1
2
IC1006
REG
(SHUNT REGULATOR)
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Q1002
Q1011
Q1004
Q1006
1-6-8
-FL
F1
F2
EV+3.3V
P-ON+9V
EV+5V
P-ON+5V
P-ON+3.3V
FROM/TO
CN1001
CN401
1,2,3 EV+1.5V
4,5 EV+3.3V
14,15 EV+9V
13 P-ON+5V
17 P-ON+3.3V
19 PWRCON
E57S7BLP
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