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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
L1001
D1004, D1005
AC CORD
F1001
1A 250V
LINE
BRIDGE
FILTER
RECTIFIER
F
A
V
Q1003
SWITCHING
HOT
1-7-7
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 MÊME TYPE.
RISK OF FIRE
T1001
2
Q1001
SWITCHING
4
CONTROL
7
6
IC1001
ERROR
VOLTAGE DET
4
3
AV CBA
-REPLACE FUSE AS MARKED.
"This symbol means fast operating fuse."
"Ce symbole reprèsente un fusible à fusion rapide."
11
D1006
SCHOTTKY
12
BARRIER
D1008
SCHOTTKY
13
BARRIER
D1015
D1030
14
RECTIFIER
15
16
17
18
1
2
IC1006
REG
(SHUNT REGULATOR)
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
IC1002
+1.5V
REG.
Q1002
Q1011
Q1004
Q1016
Q1006
1-7-8
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
E5790BLP
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