9-5
Power Supply Block Diagram
L3150BLP
4A/125V
F601
4A/125V
LINE
FIL
TER
L601
A
C601
A
C
CORD
BRIDGE
RECTIFIER
D605 - D608
HO
T
COLD
T601
10
9
16
11
14
13
7
4
3
1
2
IC601
ERR
OR
V
O
LT
A
GE DET
Q601
Q603
SWITCHING
CONTR
OL
SWITCHING
MAIN CB
A
CN101B
5
3
2
P
ANEL+3.3V
46
P
ANEL+10.8V
55
P
ANEL+25V
73
P
ANEL-6V
82
P
ANEL+3.3V
P
ANEL+10.8V
P
ANEL+25V
P
ANEL-6V
P-ON-H
Q511
Q513
IC533
+5V REG.
LCD MAIN
CB
A UNIT
T
O
SYSTEM
CONT
OR
OL
BLOCK DIA
GRAM
HOT CIRCUIT. BE CAREFUL.
AL+13V
Q509
Q505
Q510
Q512
CN101A
P-25V
-ON
21
3
AL+5V
22
2
P-25V
-ON
AL+5V
CN102A
CN102B
T
O
SYSTEM
CONTR
OL
BLOCK
DIA
GRAM
< LCD
TV SECTION >
< LCD
TV SECTION >
Q502
Q501
IC672
+5V REG.
REG+5V(2)
REG+5V(3)
IC531
+7V REG.
Q531
AL+7V(D)
TP402
+13V
Q633
6
12
15
D
VD MAIN CB
A UNIT
CN1751
EV+1.2V
14
14
EV+1.2V
13
13
EV+3.3V(D)
12
12
EV+3.3V(A)
11
11
CN1651
EV+3.3V(A)
10
10
D
VD-ON+3.3V
99
D
VD-ON+5V
88
EV+9V
77
EV+9V
66
3.3V
11
CN401
EV+1.2V
22
EV+1.2V
33
EV+3.3V(D)
44
EV+3.3V(A)
55
CN1761
EV+3.3V(A)
66
D
VD-ON+3.3V
77
D
VD-ON+5V
88
EV+9V
99
EV+9V
10
10
3.3V
25
25
EV+1.2V
D
VD-ON+3.3V
EV+3.3V(D)
EV+3.3V(A)
D
VD-ON+5V
EV+9V
3.3V
DVD-MAIN-PO
WER
18
6
DVD-MAIN-PO
WER
CN103A
CN103B
IC1652
+1.2V REG.
Q1656
Q1657
Q1655
Q1654
AL+12V
Q1653
Q1651
Q1652
IC671
+5V REG.
Q503
VT+33V
D
VD-PWR-CON
AL+7V(D)
21
3
AL+3.3V(D)
IC191
+3.3V
REG.
IC192
+1.5V
REG.
IC193
+3.3V
REG.
AL+1.5V(D)
AL+3.3V(A)
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.