9-5
5. Power Supply Block Diagram
COLD
HOT CIRCUIT. BE CAREFUL.
Q602
Q621
1
4
3
2
L601
CN601
BRIDGE
RECTIFIER
D601- D604
Q601
SWITCHING
AC601
AC CORD
L602
2.5A 250V
F602
2.5A/250V
Q653
P-ON-H2
RESET
Q650
RESET
P-ON+21V
AMP+13V
W
B
ERROR
VOLTAGE DET
IC601
CN501
8
P-ON+21V
AMP+13V
AL+3.3V
20-23
P-ON+21V20-23
15-18
AMP+13V15-18
AL+3.3V8
CN3601
T601
6
4
5
12
11
10
9
8
7
1
2
LINE
FILTER
LINE
FILTER
OVER
VOLTAGE
PROTECT
SWITCHING
CONTROL
HOT
POWER SUPPLY CBA
DIGITAL MAIN CBA UNIT
TO
SYSTEM CONTROL
BLOCKDIAGRAM
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.
PL15.13BLP
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