9-10
5. Power Supply Block Diagram
HO
T
COLD
HOT CIRCUIT. BE CAREFUL.
CN601
B
W
AC
6
0
1
A
C
CORD
LINE
FIL
TER
L602A
LINE
FIL
TER
L601A
T601
BRIDGE
RECTIFIER
T1602
T
O
SYSTEM CONTR
OL
BLOCK DIA
GRAM
PO
WER SUPPL
Y CB
A
DIGIT
AL MAIN CB
A UNIT
F602
2.5A/250V
1
3
5
6
7
14
15
13
12
11
10
2
2
4
3
1
4
8
5
T1701
14
13
15
11
10
6
7
IC602
1
4
3
2
Q1602
SWITCHING
Q1601
VCC
SWITCHING
IC1601
(SWITCHING CONTROL)
SWITCHING
CONTROL
7
11
1
16
12
14
T1601
1
4
8
5
8
IC1602
(ISOLATOR)
Q691
Q1608
Q1607
Q1604
1
4
3
2
IC1702
1
4
3
2
CN3602
P-ON+21V
20-23
AL+3.3V
8
8
15-18
20-23
CN501
AMP+13V
15-18
Q653
Q701
Q702
P-ON-H2
RESET
RESET
Q654
RESET
Q650
D601-D604
AL+3.3V
P-ON+21V
AMP+13V
AMP+13V
VIN
2.5A 250V
FB
Q601
SWITCHING
Q602
SWITCHING
IC651,
Q657
+3.3V REG.
SWITCHING
CONTROL
IC601
2
IS
3
OUT
5
VCC
6
ZCD
1
FB
Q1704
SWITCHING
Q1702
Q1701
SW+15V
SWITCHING
CONTROL
IC1701
2
IS
3
OUT
5
VCC
6
ZCD
1
ERROR
VOLTAGE DET
ERROR
VOLTAGE DET
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.
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
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
PL13.14BBLP
