8 Block Diagrams
PT-56LCX70/PT-61LCX70/PT-50LCX7/PT-56LCX7
/PT-61LCX7/PT-50LCX7K/PT-56LCX70-K/PT-61LCX70-K
POWER SUPPLY BLOCK DIAGRAM
POWER SUPPLY BLOCK DIAGRAM
a
a
b
b
50V
10ms
V1 +150.0 Vp-p
50V
10ms
V1 +150.0 Vp-p
GND
D1001
FULL-WAVE
RETIFIER
D802
D811
THERMAL
FUSE
FULL-WAVE
RETIFIER
AC LINE
FILTER
F801
8A 125V
F1001
6.3A 125V
L802
T801
RL801
IC1002
Q1001
IC1003
(SHUNT REGULATOR)
IC1001(SWITCHING CONTROL)
POWER P.C.B.
MAIN P.C.B.
SD/HDMI P.C.B.
REAR JACK P.C.B.
TUNER P.C.B.
STANDBY POWER CIRCUIT
Q801
V-REF(2.495V)
FEED BACK
3
1
2
CN804-1
CN804-3
CN1003-9
CN1101-9
CN1003-7
CN1003-1,2
CN1003-10,11
CN1003-5
CN1003-8
CN1003-6
CN851-1
CN851-2
CN3501-34
CN3501-29
CN3001-34
CN3001-29
AC IN
3
7
2
6
9
9
4
2
5
RL802
Q806
7
OVER VOLTAGE
PROTECTION
ZERO CURR.
DETECTION
ERROR VOLT.
DETECTION
DRIVE
CONTROL
VCC
TP1005
TP805
TP803
TP1002
TP1001
TP810
TP804
RF AMP POWER SUPPLY P.C.B.
LAMP UNIT
AC IN
+26V
GND
+26V
GND
AC IN
D
S
1
R1026
C1002
RUSH CURRENT
PROTECTOR
OVER CURRENT
DETECTION
30V
TP1004
17V
TP1003
+17V
REG+30V
REG+9V
STBY+7V
TV SUB ON(H)
AC STOP(L)
SOUND+18V
18V
TP1006
9V
TV SUB ON
STB 7V
STB 7V
T1001
6
13
14
15
16
5
3
9
8
7
12
11
10
1
AC VOLTAGE
DETECT
Q803-Q805
117 C
F
(242.6 )
AC LINE
FILTER
L853
PR1002
PR1001
TP2007
CN1101-7
CN1101-1,2
CN1101-10,11
CN1101-5
CN1101-8
CN1101-6
CN1102-1
CN1102-2
FRONT FAN
TP2759
(+8V)
(+6V - +6.5V)
(+7V)
CN2751-1
CN2751-2
CN2751-3
IC2751
(FAN DRIVE)
REG.
2
4
5
REAR FAN
CN2752-1
CN2752-2
CN2752-3
OPT FAN
LAMP FAN
CN2754-1
CN2754-2
CN2754-3
CN2753-1
CN2753-2
CN2753-3
IC2753
(FAN DRIVE)
REG.
2
4
5
IC2754
(FAN DRIVE)
REG.
2
4
5
TP2757
TP2758
IC1105
(+1.8V REGULATOR)
IC1104,Q1106
IC1103,Q1107
+1.8V REG.
+3.3V REG.
+1.2V REG.
1
2
4
IC1106
(+5V REGULATOR)
Q1110
Q1102,Q1109
IC1101,IC1102
D1103-D1106,ETC
Q1101
+5V REG.
OVER
VOLTAGE
DETECT
5
4
5
IC1107
(+5V REGULATOR)
Q1103,Q1108
+5V REG.
1
2
4
CN9804-15,16
CN9804-17
CN8970-4
CN8970-17,19
CN9802-1
CN6003-4
CN6005-3
CN5503-15,16
CN5503-17
CN8801-4
CN8801-17,19
CN8201-1
IC2007
(+15.5V REGULATOR)
+15.5V REG.
2
4
5
1
SW+5V
Q1104,Q1105
SW+3.3V
Q5518,Q5519
SW+3.3V
IC1108
(+3.3V REGULATOR)
+3.3V REG.
1
5
CN3501-28
CN3501-31
CN3001-28
CN3001-31
TP2008
TP1116 TP1117
TP1109 TP1100
TP1111 TP1112
TP1113 TP1114
TP1108
TP1105
TP1115
TP1106 TP1107
TP1118 TP1119
TP1120 TP1121
TP1102 TP1103
Q1111
TP813
AC STOP
Q2751
Q2752
Q2753
Q2754
+15.5V
SOUND+18V
DTV+9V
SUB+5V
SUB+1.8V
SUB+3.3V
SUB+1.2V
STB+5V
STB+3.3V
MAIN+5V
MAIN+3.3V
MAIN2+3.3V
MAIN+5V
SUB+3.3V
SUB+5V
BT+30V
TV MAIN ON DELAY(H)
TO/FROM
SYSTEM CONTROL
BLOCK DIAGRAM
TV MAIN ON (H)
DTV+1.5V ON(H)
AC STOP(L)
SOS(L)
TV SUB ON(H)
FAN SOS
DTV+9V
OPT FAN SD CONTROL
FRONT/REAR FAN SD CONTROL
OVER
CURRENT
DETECT
SW
IC2756
(COMPARATOR)
5
6
7
Q2755
+9V
POWER SWITCH/OPERATION P.C.B.
CN6801-4
STB+3.3V
LAMP
D6802
LAMP ON(H)
POWER LED-R ON(L)
POWER LED-G ON(L)
POWER
D6803 G
R
Q6804
Q6803
Q6802
BACKUP FOR
MICROCONTROLLER
SUB+5V
LAMP UNIT
CN1 CN151
AC LINE
FILTER
L1001
PT-56LCX70 / PT-61LCX70 / PT-50LCX7 / PT-56LCX7 / PT-61LCX7
55