9-5
5. Power Supply Block Diagram
COLD
1
4
3
2
Q653
RESET
Q650
RESET
AMP+13V
P-ON+13V
AL+3.3V
IC602
IC3604
ERROR
VOLTAGE DET
HOT
DIGITAL MAIN CBA UNIT
TO
SYSTEM CONTROL
BLOCKDIAGRAM
HOT CIRCUIT. BE CAREFUL.
T601
11
7
8
9
10
2
4
1
5
6
VLED
ILED
TO
LED BACKLIGHT DRIVE
BLOCK DIAGRAM
+3.3V REG.
P-ON-H2
Q602
Q621
L601
CN601
D601- D604
Q601
SWITCHING
2.5A 250V
F602
2.5A/250V
W
B
AC601
AC CORD
LINE
FILTER
BRIDGE
RECTIFIER
SWITCHING
CONTROL
OVER
VOLTAGE
PROTECT
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
CAUTION ! :
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
2.5A 250V
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) 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.
PL19.00BLP
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