10-6
5. Power Supply Block Diagram
A17FYBLP
HOT COLD
POWER SUPPLY CBA
HOT CIRCUIT. BE CAREFUL.
14
3 2
T600
TO
INVERTER
BLOCK
DIAGRAM
(CN1901)
CN600
CN601
2
HOT-GND3
INV+20V4
+B1
1
2
LINE
FILTER
L600-L602
BRIDGE
RECTIFIER
D610- D613
4
3
11
12
13
14
16
10
98
6
7
SHUNT
REG.
Q605
SWITCHING
IC650
CN650 CN1001
CN651 CN3601
Q665, Q666
SWITCHING
Q668
SW-5V
Q669
Q652
Q653
SW+13V
Q670
Q654
Q655
Q604
Q603
Q663, Q664
IC652
+3.3V REG.
4A 125V
F600
4A/125V
Q606
SWITCHING
CONTROL
P-ON-H1
TO SYSTEM CONTROL
BLOCK DIAGRAM
P-ON-H2
PROTECT3
RESET
PROTECT1
SWITCHING
4-6
4
7,8
7,9
LCD+13V
LCD+5V
LCD+31.5V
P-ON+3.3V
AMP+24V
AL+4.3V
P-ON+12V
INVERTER CBA
DIGITAL MAIN CBA UNIT
3
LCD-5V13
P-ON+12V4-6
P-ON+3.3V12
6
LCD+31.5V10
LCD+13V8,9
AL+4.3V7,9
2
AMP+24V2
Q667
SW+31.5V
Q656, Q657,
Q662
Q650, D653
SW+12V
Q651
IC653, Q674
Q601,
Q602
SWITCHING
ERROR
VOLTAGE DET
IC601
IC600
15
1
2
4
3
(ISOLATOR)
Q673
SW+4.3V
SWITCHING
AC601
AC CORD
AC
INLET
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F600) 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.
For continued protection against risk of fire,
replace only with same type 4A, 125V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
4A 125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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