9-5
5. Power Supply Block Diagram
COLD
HO
T CIRCUIT
. BE CAREFUL.
Q602
Q621
1
4
3
2
L601
CN601
BRIDGE
RECTIFIER
D601- D604
Q601
SWITCHING
A
C601
A
C
CORD
L602
2.5A 250V
F602
2.5A/250V
Q653
P-ON-H2
RESET
Q650
RESET
P-ON+21V
AMP+13V
W
B
ERR
OR
V
O
LT
A
GE DET
IC601
CN501
8
P-ON+21V
AMP+13V
AL+3.3V
20-23
P-ON+21V
20-23
15-18
AMP+13V
15-18
AL+3.3V
8
CN3601
T601
6
4
5
12
11
10
9
8
7
1
2
LINE
FIL
TER
LINE
FIL
TER
O
VER
V
O
LT
A
GE
PR
O
TECT
SWITCHING
CONTR
O
L
HO
T
PO
WER SUPPL
Y CB
A
DIGIT
AL MAIN CB
A UNIT
TO
SYSTEM CONTR
OL
BLOCKDIA
GRAM
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