Panasonic PT-44LCX65-K Service Manual page 124

PT-44LCX65-K / PT-52LCX65-K / PT-61LCX65-K
POWER SUPPLY BLOCK DIAGRAM
POWER C.B.A.
F801 F1001
6.3A 125V/250V L802 L803 L1001
5A 125V/250V
P804-1
AC LINE AC LINE AC LINE
AC IN
FILTER FILTER FILTER
P804-2
RL801
TP811
Q801
TP1003
TP1004
(18.5V)
TP1005
TP1006
(17V)
RL802
R809,811
(RUSH CURRENT
PROTECTOR)
T801
6 3 TP804
2
4 1
BALLAST C.B.A.
THERMAL FUSE UNIT
F001
115 C (239 F)
P1306-1
P1306-2
P807 P1302-1
P808 P1302-2
P1001-2 P1301-2
P1001-1 P1301-1
P1001-5 P1301-5
P1001-4 P1301-4
MAIN C.B.A. BASE C.B.A.
FROM STANDBY(L)/POWER ON(H) P3401-63 P3003-63 P3007-1
SYSTEM CONTROL LAMP ON(H) P3401-65 P3003-65 P3007-2
BLOCK DIAGRAM
LAMP STATUS(ERROR) P3401-64 P3003-64 P3007-3
TP1007
T1001
TP1009
D1002
PR1004
FULL-WAVE 1 18
RETIFIER TP1010
IC1001
(SWITCHING CONTROL)
17
VCC
OVER VOLTAGE TP1011
4
PROTECTION
PR1003
1 3 16
D
6 DRIVE TP1001
CONTROL
TP1008
S
3 4 15
TP1002
WF104
PR1002
5 14
TP1012
PR1005
6 13
Q1001-1003
PR1001
+19V
7 12
REGULATOR
8 11
Q1004-1006
+17V
9 10
REGULATOR
IC1002
FEED BACK
ATSC ON(H)
IC1003
(SHUNT REGULATOR)
3
1
V-REF(2.495V)
2
STANDBY POWER CIRCUIT
TP803 TP810
D803-806
FULL-WAVE
RETIFIER
AC STOP
<TO IC6003(87)>
TP1301
VOLTAGE MULTIPLYING
L1303, DC/DC CONVERTER
RECTIFIER
F1301
C1309-1311 (STEP-DOWN CHOPPER SYSTEM)
L1301
5A/250V
AC LINE
C1305 TP1305
WF7
NOISE
FILTER
REDUCTION
C1306
D1302
Q1304
TP1302
F1302
THERMAL FUSE
117 C (243 F)
Q1305
TP1306
(17V)
Q1301
TP1303
(18.5V)
WF6
Q1302
IC1303
TP1304
OPTICAL
ISOLATOR
IC1304
WF5
OPTICAL
LAMP ON(L)
ISOLATOR
P1305-1 BALLAST CONTROL
IC1302
P1305-2
OPTICAL CIRCUIT
P1305-3 LAMP ERROR PULSE
ISOLATOR
U1301(HIC)
WF103
BASE C.B.A.
(+16V)
P1006-5,6,7 P1101-5,6,7 TP1111 TP1116 TP1117
(-16V)
P1006-11,12,13 P1101-11,12,13
(+30V) (+30V)
P1006-17 P1101-17
(+17V) (+9V)
P1006-18,19 P1101-18,19 PR1102
(+9V) (+5V)
P1006-(20-24) P1101-(20-24) TP1105
(+7V) (+9V)
P1006-1 P1101-1
(+5V)
P1006-3 P1101-3 TP1118
(+3.3V)
(+2.5V)
IC1103 Q1102,
(+5V)
Q1111
PR1103
(+5V)
DC/DC
TP1104
SW
CONVERTER
Q1109,
IC1105
TP1119
Q1110,
PR1101
ETC
DC/DC (+3.3V)
CONVERTER
Q1107
IC1106
TP1120
DC/DC (+2.5V)
CONVERTER
Q1108
IC1101
TP1103
+5V
5 4
REG.
TP1112
DETAIL BLOCK DIAGRAM FOR IC1103, IC1105, AND IC1106
DC/DC CONVERTER (STEP-DOWN CHOPPER SYSTEM)
3 1
4 2
5 22
SWITCHING
6 23
24
25
OVER CURR. 16
19 VCC LIMITER 15
CONSTANT
13
VOLTAGE
ON/OFF
CONTROL CONTROL
18
DC/AC INVERTER
Q1306 Q1308
Q1307 Q1309
4 3
T1301
WF4
1 2
INVERTER DRIVE3
INVERTER DRIVE1
D1315
C1330
INVERTER DRIVE2
WF2 Q1310
INVERTER DRIVE4
WF1
WF3
HV ON(H)
Q1310 TURNS ON WHEN
LAMP STARTS UP.
124
MAIN C.B.A.
+16V
-16V
P3003-23 P3401-23 P5301-8
P3003-24,25 P3401-26 P5301-51,52,53
P3003-28 P3401-28 P5301-54,57
P3003-26 P3401-26 REG+9V
P3003-29 P3401-29 SW+5V
P3003-30,31 P3401-30,31 REG+3.3V
P3003-32,33 P3401-32,33 REG+2.5V
P3003-27 P3401-27 STBY+5V
P3003-9 P3401-9
P3003-6 P3401-6
IC6002
+3.3V
TP1102
P6005-6
5 4
REG.
OVER OVER
D1111-1116,
CURRENT VOLTAGE
D1118,D1119
DETECT DETECT
POWER ON(H)
<FROM IC6003(15)>
ATSC ON(H)
<FROM IC6003(105)>
Q1101-1106,
Q1113,Q1114
SW
ERROR VOLTAGE DETECT
VOLTAGE LINE ERROR VOLTAGE
ATSC+9V MORE THAN +11V
ATSC+5V MORE THAN +8.5V
INPUT VOLTAGE DOWN DETECT
REG+3.3V MORE THAN +5V
REG+2.5V MORE THAN +5V
STBY+7V LESS THAN +5.7V
( ATSC ON SIGNAL GOES LOW IN VOLTAGE )
FRONT JACK C.B.A. ERROR CONDITION.
P3008-1 P3903-1 STBY+5V
SW+5V
LCD DRIVE C.B.A.
STBY+5V
REG+9V
IC2901
STBY+7V
(+15.5V REGULATOR)
TP2906
+15.5V
(+17V)
P1102-1 P2901-1 2 REG. 4 SW +15.5V
(+9V)
P1102-2 P2901-2
(+5V)
P1102-3 P2901-3 1 5
(+3.3V)
P1102-4 P2901-4
LCD ON (H)
<FROM IC2303 (33)>
IC2902
(FAN1 DRIVE)
TP2907 TP2911
(7.0V)
REG.
2 4
IC2905
1 5
(OP AMP)
FAN1 SPEED CONTROL
5
<FROM IC2303(23)>
7
6
FAN OH (H)
<FROM IC2303 (42)>
IC2903
(FAN2 DRIVE)
TP2908 TP2912
(8.0V)
2 REG. 4
1 5
FAN2 SPEED CONTROL
<FROM IC2303 (63)>
IC2904
(FAN3 DRIVE)
TP2909 TP2913
(7.0V)
2 REG. 4
1 5
FAN3 SPEED CONTROL
<FROM IC2303 (52)>
+17V
+9V
+5V
+3.3V
+3.3V
FAN1 LOCK (H)
<TO IC2303 (29)>
FAN2 LOCK (H)
<TO IC2303 (30)>
FAN3 LOCK (H)
<TO IC2303 (31)>
LAMP
LAMP STATUS SIGNAL
LAMP ON H
(ERROR PULSE)
LAMP OFF L
ERROR 1 PULSE (T=128 msec)
ERROR 2 PULSE (T=96 msec)
ERROR 3 PULSE (T=64 msec)
ERROR 4 PULSE (T=32 msec)
PT-44LCX65-K/PT-52LCX65-K/PT-61LCX65-K
DIGITAL TUNER C.B.A.
DT12-8 REG+30V
DT12-51,52,53 ATSC+9V
DT12-54,57 ATSC+5V
OPERATION C.B.A.
P6701-6 STBY+3.3V
TP2901
FAN 1
P2902-1
P2902-2
P2902-3
FAN2
P2903-1
P2903-2
P2903-3
FAN3
P2904-1
P2904-2
P2904-3
"2T"
POWER SUPPLY BLOCK DIAGRAM