7-5
Power Supply Block Diagram
L2601BLP
4A/125V
F601
4A/125V
LINE
FIL
TER
L601
A
C601
A
C
CORD
BRIDGE
RECTIFIER
D605 - D608
HO
T
COLD
T601
12
13
16
14
11
4
4
3
1
2
IC601
ERR
OR
V
O
LT
A
GE DET
Q601
Q603
SWITCHING
CONTR
OL
SWITCHING
MAIN CB
A
2
6
7
P
ANEL+25V
26
P
ANEL-6V
21
P
ANEL+3.3V
1
P
ANEL+3.3V
23
AL+13V
P-ON-H
P-25V
-ON
BA
CKLIGHT
-ADJ
Q632
Q504
Q501
SW+25V
Q503
+10.8V REG.
Q506
SW-6V
HOT CIRCUIT. BE CAREFUL.
CN1207
P
ANEL+3.3V
24
P
ANEL+10.8V
4
P
ANEL+10.8V
5
Q505
Q502
+1.5V
D+3.3V
P-ON-5V
AL+3.3V
10
9
INV+22V
+40V
TP401
INV+22V
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
T
O
LCD
BA
CKLIGHT
BLOCK
DIA
GRAM
D647
SHUNT
REG.
IC1605
+5V REG.
IC1606
+5V REG.
Q402
Q401
Q403
IC1603
+1.5V REG.
IC1602
+3.3V REG.
VT+33V
D505
SHUNT
REG.
TO
LCD MODULE
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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 4 A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de m
ê
me type de 4A, 125V.
4A/125V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Summary of Contents for EWL20S5
Page 27: ...8 3 Main 1 5 Schematic Diagram L2601SCM1 ...
Page 28: ...8 4 L2601SCM2 Main 2 5 Schematic Diagram ...
Page 29: ...8 5 Main 3 5 Schematic Diagram L2601SCM3 ...
Page 30: ...8 6 L2601SCM4 Main 4 5 Schematic Diagram ...
Page 32: ...8 8 L2601SCF Function Schematic Diagram ...
Page 33: ...8 9 L2601SCIR IR Sensor Schematic Diagram ...
Page 34: ...8 10 L2601SCI Inverter Schematic Diagram ...
Page 38: ...8 14 Inverter CBA Top View BL2500F01021 Inverter CBA Bottom View ...
Page 52: ...EWL20S5 L2601UB 2006 05 29 ...
