Panasonic PT-43LCX64 Service Manual page 80

POWER SUPPLY BLOCK DIAGRAM
POWER C.B.A.
F801
6.3A F1001
125V/250V L802 L803 L1001
5A 125V/250V
P804-1 AC LINE AC LINE
AC IN
P804-2 FILTER FILTER
RL801
TP1015
Q801
TP1022
TP1023
TP1025
TP1013
(8V)
T801
6
4
P807
P808
FAN4
P1006-1
P1006-2
RL802
R809
THERMAL FUSE UNIT
F001
115 C (239 F)
(RUSH CURRENT PROTECTOR)
P805-1
P805-2
(+17V)
P1001-4
P1001-5
(+19V)
P1001-1
P1001-2
MAIN C.B.A.
FROM STANDBY(L)/POWER ON(H) P6002-1
SYSTEM CONTROL
LAMP ON(H) P6002-2
BLOCK DIAGRAM
LAMP STATUS(ERROR) P6002-3
TP1021
T1001
D1002-1005
PR1010
AC LINE FULL-WAVE 1 10
FILTER RETIFIER
IC1001
(SWITCHING CONTROL)
11
VCC
OVER VOLTAGE
4
PROTECTION
PR1011
1 3 12
D
5
DRIVE
CONTROL
TP1020
S
2 4
POWER ON(H)
<FROM IC6302 (72)>
5 13
PR1012
6 14
Q1001-1003
PR1001 PR1013
+19V
7 15
REGULATOR
8 16
IC1005
Q1004-1006 (SHUNT REGULATOR)
+17V
9 17
REGULATOR
3
IC1002
IC1006
(FAN4 DRIVE)
FEED BACK
V-REF(2.495V)
3 REG. 5
4
PR1008 (+12V)
TP804
STANDBY POWER CIRCUIT
D803-806
3
TP803 TP810
2 FULL-WAVE
RETIFIER
1
DIGITAL TUNER POWER C.B.A.
F1201
L1201 D1201
1.6A 125V/250V
P1201-1
AC LINE FULL-WAVE
IC1201
P1201-2 FILTER RETIFIER
(SWITCHING CONTROL)
VCC
OVER VOLTAGE
4
PROTECTION
5 DRIVE
CONTROL
BALLAST C.B.A.
TP1301
VOLTAGE MULTIPLYING
L1303,
P1306-1 RECTIFIER
F1301
C1309-1311
P1306-2 L1301
5A/250V
AC LINE
C1305
FILTER NOISE
REDUCTION
P1302
C1306
P1303
D1302
TP1302
F1302
THERMAL FUSE
117 C (243 F)
Q1305
TP1306
(17V)
P1301-4
Q1301
P1301-5
TP1303
(18.5V)
P1301-1
P1301-2
Q1302
IC1303
OPTICAL
TP1304
ISOLATOR
IC1304
OPTICAL
LAMP ON(L)
ISOLATOR
P1305-1
IC1302
P1305-2
OPTICAL
P1305-3 LAMP ERROR PULSE
ISOLATOR
AUDIO AMP C.B.A.
TP1004
(+16V)
P1009 P4501-1
TP1005
P1010 P4501-2
(-16V)
TP1003 P1011 P4501-3
TP1007
TP1008
TP1012
IC1004
TP1006
+9V
1 3
REG.
TP1009
PR1004
1
PR1005
2
DC/DC CONVERTER (STEP-DOWN CHOPPER SYSTEM)
IC1003
18 11
19 12
SWITCHING
20 13 PR1003
(+6.5V)
21 14
IC1007
6
VCC
OVER CURR. 3 PR1007
+5V
LIMITER 2 5 3
REG.
CONSTANT
32 PR1006
VOLTAGE
CONTROL
T1201
TP1203
1 11
PR1203 PR1201 TP1205
10
TP1204
TP1201
D
1 3
TP1202 9
2 5 8
S
IC1203
(SHUNT REGULATOR)
6 7
3
1
IC1202
FEED BACK
2
V-REF(2.495V)
DC/DC CONVERTER
DC/AC INVERTER
(STEP-DOWN CHOPPER SYSTEM)
TP1305
R1321
Q1304 Q1306 Q1308
WATTAGE
Q1307 Q1309
INVERTER DRIVE3
INVERTER DRIVE1
INVERTER DRIVE2
BALLAST CONTROL
INVERTER DRIVE4
CIRCUIT
HV ON(H)
U1301(HIC)
TUNER C.B.A.
Q7001
Q7003
IC7001
DTV POWER ON(H)
(+7.5V REGULATOR)
P7002-1 +30V
+16V Q7002
<FROM IC6302(70)>
P7002-2
(+10V)
P7002-3 2 REG.
5
-16V
MAIN C.B.A.
P6003-10 P7003-10
REAR JACK C.B.A.
P3404-4,15 P3602-4,15
P3404-5,14 P3602-5,14
P3404-6,13 P3602-6,13
(+33V)
P1007-1 P3401-1 +33V
(+9V)
UNSW +9V
P1007-2 P3401-2 +9V
(+3.3V)
(STBY+9V)
P1007-6,7 P3401-6,7 +3.3V
(+6.5V)
P1007-5 P3401-5 +6.5V
(+5V)
P1007-4 P3401-4 +5V
(-5V)
P1007-8 P3401-8 -5V
(+9V)
P1007-3 P3401-3
IC6003
32 MAIN MICRO-
77 CONTROLLER
TP1010
LCD DRIVE C.B.A.
TP1014
IC2901
(+15.5V REGULATOR)
+15.5V
(+17V) (+17V)
P1008-1 P2901-1 REG.
2 4
(+12V)
(+12V)
P1008-2 P2901-2
(+5V) (+5V)
P1008-3 P2901-3
1 5
(+3.3V)
(+3.3V)
P1008-4 P2901-4
TP1011
IC2902
(FAN1 DRIVE)
TP2907 TP2911
2 REG. 4
IC2905
1 5
(OP AMP)
7
(+30V)
P1203-1
P1203-2
(+10V)
P1203-3
IC2903
(FAN2 DRIVE)
TP2908 TP2912
2 REG. 4
1 5
IC2904
(FAN3 DRIVE)
TP2909 TP2913
2 REG. 4
1 5
4 3
T1301
LAMP STATUS SIGNAL
LAMP
LAMP ON
LAMP OFF
1 2
ERROR 1 PULSE (T=128 msec)
D1315 ERROR 2 PULSE (T=96 msec)
C1330
ERROR 3 PULSE (T=64 msec)
Q1310
ERROR 4 PULSE (T=32 msec)
Q1310 TURNS ON WHEN
LAMP STARTS UP.
DTV TUNER UNIT
P7007-3,4 +30V
P7007-50-53,58-61 +10V
P7007-64 +7.5V
Q7102,
FAN 5
Q7103
(+7.5V)
4 DRIVE P7008-1
P7008-2
+5V
+5V
-5V
+9V
IC6302
+5V
SUB MICRO-
5 4 11
REG.
CONTROLLER
56
IC5015
+3.45V
1 3 +3.45V
REG.
2
+3.45V ON(H)
<FROM IC6003(6)>
TP2906 TP2901
SW +15.5V
SW +15.5V CONTROL
<FROM IC2304 (26)>
LCD ON (H)
<FROM IC2304 (51)>
+5V
(7.0V) PT-43LCX64, PT-50LCX64
FAN 1
(7.75V) PT-60LCX64
P2902-1
P2902-2
P2902-3
FAN1 SPEED CONTROL
5
<FROM IC2503(7)>
6
FAN1 OH (H)
<FROM IC2304 (53)>
(8.0V) PT-43LCX64, PT-50LCX64
FAN2
(8.75V) PT-60LCX64
P2903-1
P2903-2
P2903-3
FAN2 SPEED CONTROL
<FROM IC2304 (28)>
FAN2 OH (H)
<FROM IC2304 (55)>
(7.0V) PT-43LCX64, PT-50LCX64
FAN3
(7.75V) PT-60LCX64
P2904-1
P2904-2
P2904-3
FAN3 SPEED CONTROL
<FROM IC2304 (30)>
FAN3 ON (H)
<FROM IC2304 (73)>
+17V
+11V
+5V
+3.3V
FAN(1,2,3) LOCK (H)
<TO IC6302 (6)>
H
(ERROR PULSE)
L
"2T"
POWER SUPPLY BLOCK DIAGRAM
PT-43LCX64/PT-50LCX64/PT-60LCX64