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