
1-10-8
Power Supply Block Diagram
P7754BLP
Q1604
FEED
BA
CK
Q1613
Q1614
Q1607
LINE
FIL
TER
BRIDGE
RECTIFIER
T1601
IC1601
ERR
OR
V
O
LT
A
G
E DET
W1601
F1601
4A/125V
L1601
D1603 D1606
DEGA
USSING
COIL
CN1601
DG601
PS1601
COLD
SUB CB
A
MAIN CB
A
SWITCHING
Q1601
Q1221
Q1605
Q1901
Q1602
CN1103
CN2103
CN1302
CN2302
P-DO
WN
D
V
D-MAIN-PO
WER
P-ON-H
T
O
CR
T/H.V
.
BLOCK DIA
GRAM
CN2103
CN1103
AL+33V
1
2
3
4
IC1902
ERR
OR
V
O
LT
A
GE DET
1
2
3
4
9
10
16
14
15
13
11
8
7
5
2
1+
B
2+
B
6
DEF+B
IC1901
(ISOLA
T
O
R)
1
2
3
4
T1901
SWITCHING
Q1905
Q1904
Q1903
14
16
13
15
5
7
2
3
DEF+B
P-ON+12V
P-ON+8V
P-ON+9V
P-ON+5V(4)
P-ON+5V(2)
P-ON+5V(5)
TIMER+5V
P-ON-H2
DTV
-ON-H
AL+5V
M+12V
TO SYSTEM
CONTROL
/SERVO
BLOCK
DIAGRAM
4A 125V
P-ON+5V(3)
+5.7V
-CTRL
TO TV
PROCESS
BLOCK
DIAGRAM
Q1906
Q2610
Q2612
Q2617
IC2602
IC3603
+1.2V
REG.
3
2
Q2615
Q2618
Q2616
Q2611
SW CTL
22
D
VD-MAIN-PO
WER
19
19
EV+4V
12
12
D
VD+5V
10
10
D
VD+9V
11
11
D
VD-ON+3.3V
10
10
EV+3.3V
14
14
EV+9V
13
13
EV+9V
12
12
D
VD-ON+5V
99
EV+3.3V
33
EV+1.2V
22
EV+1.2V
11
EV+1.2V
15
15
PWRCON
D
VD MAIN
CB
A UNIT
EV+9V
D
VD-ON+5V
D
VD-ON+3.3V
EV+3.3V
EV+1.2V
PWRCON
CN1A
T
O
D
VD SYSTEM
CONTR
OL / SER
V
O
BLOCK DIA
G
RAM
<D
VD SECTION>
HO
T
CN1
66
DTV
-ON+1.8V
44
DTV
-ON+3.3V
55
DTV
-ON+2.5V
DTV
-ON+1.8V
DTV
-ON+3.3V
DTV
-ON +5V
DTV
-ON+2.5V
DTV MODULE
CB
A UNIT
CN102
CN1102
33
DT+5V
CN101
CN1101
SW+8V
Q1689
SW+5V
Q1688
SW+5V
Q1681
SW+5V
IC1682
+5V REG.
SW+9V
Q1902
SW+5V
VR1601
+B ADJ
IC1101
+1.8V REG.
IC1105
,Q1110
Q1105
Q1104
Q1103
Q1106
+3.3V REG.
IC1106
,Q1107
+2.5V REG.
+5V REG.
Q1908
Q1907
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1601) 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 CT202MW8
Page 44: ...1 11 3 Main 1 6 Sensor Schematic Diagram TV VCR Section P7754SCM1...
Page 45: ...1 11 4 P7754SCM2 Main 2 6 Schematic Diagram TV VCR Section...
Page 46: ...1 11 5 P7754SCM3 Main 3 6 Schematic Diagram TV VCR Section...
Page 47: ...1 11 6 Main 4 6 Schematic Diagram TV VCR Section P7754SCM4...
Page 48: ...1 11 7 P7754SCM5 Main 5 6 Junction A Schematic Diagram TV VCR Section...
Page 50: ...1 11 9 P7754SCSUB1 Sub 1 3 Schematic Diagram TV VCR Section...
Page 51: ...1 11 10 Sub 2 3 Schematic Diagram TV VCR Section P7754SCSUB2...
Page 52: ...1 11 11 Sub 3 3 Schematic Diagram TV VCR Section P7754SCSUB3...
Page 54: ...1 11 13 P7754SCDT1 DTV Module 1 2 Schematic Diagram TV VCR Section...
Page 56: ...1 11 15 P7754SCD1 DVD Main 1 3 Schematic Diagram DVD Section...
Page 57: ...1 11 16 P7754SCD2 DVD Main 2 3 Schematic Diagram DVD Section...
Page 58: ...1 11 17 P7754SCD3 DVD Main 3 3 Schematic Diagram DVD Section...
Page 78: ...1 17 2 P7754PEX Packing FRONT S4 S1 X1 Tape X2 X3 S3 S6 S7 S2 Packing Tape...