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PT-50LC13
D1002-1005
FULL-WAVE
RETIFIER
D803-806
FULL-WAVE
RETIFIER
AC LINE
FILTER
F801
6.3A 125V/250V
L802
AC LINE
FILTER
L803
AC LINE
FILTER
L1301
C1305
D1302
C1306
NOISE
REDUCTION
DC/DC CONVERTER
(STEP-DOWN CHOPPER SYSTEM)
VOLTAGE MULTIPLYING
RECTIFIER
BALLAST CONTROL
CIRCUIT
L1303,
C1309-1311
AC LINE
FILTER
L1001
F1001
5A 125V/250V
POWER ON(H)
<FROM IC6302 (72)>
F001
115 C (239 F)
THERMAL FUSE UNIT
F1301
5A/250V
STANDBY(L)/POWER ON(H)FROM
SYSTEM CONTROL
BLOCK DIAGRAM
LAMP ON(H)
LAMP STATUS(ERROR)
T801
RL801
IC1002
IC1005
(SHUNT REGULATOR)
IC1001
(SWITCHING CONTROL)
Q1001-1003
POWER C.B.A.
STANDBY POWER CIRCUIT
BALLAST C.B.A.
MAIN C.B.A.
LCD DRIVE C.B.A.
Q1004-1006
IC1303
Q1301
Q1305
Q1303
Q1304
F1302
THERMAL FUSE
117 C (243 F)
VCC(+19V)
VCC(+17V)
THERMISTOR
ERROR VOLTAGE DET
LAMP GND
ERROR CURRENT DET
PWM CONTROL
LAMP ON(L)
INVERTER DRIVE3
INVERTER DRIVE1
INVERTER DRIVE2
INVERTER DRIVE4
HV ON(H)
LAMP ERROR PULSE
Q1302
IC1304
IC1302
Q801
IC1003
V-REF(2.495V)
FEED BACK
3
1
2
LAMP
+17V
SW +15.3V
TP2906
SW +15.3V CONTROL
LCD ON (H)
<FROM IC2304 (51)>
+14V
FAN1 SPEED CONTROL
<FROM IC2502(7)>
FAN2 SPEED CONTROL
<FROM IC2304 (28)>
FAN2 OH (H)
<FROM IC2304 (55)>
FAN3 ON (H)
<FROM IC2304 (73)>
FAN(1,2,3) LOCK (H)
<TO IC6302 (6)>
FAN 1
FAN2
FAN3
P2901-1
P2901-2
P2901-3
P2901-4
P2902-1
P2902-2
P2902-3
P2903-2
P2903-3
P2903-1
P2904-1
P2904-2
P2904-3
IC2901
(+15.3V REGULATOR)
+15.3V
REG.
1 3
42
IC2902
(FAN1 DRIVE)
IC2905
(OP AMP)
REG.
1 3
42
IC2903
(FAN2 DRIVE)
REG.
1 3
42
IC2904
(FAN3 DRIVE)
REG.
1 3
2
FAN3 SPEED CONTROL
<FROM IC2304 (30)>
4
FAN1 OH (H)
<FROM IC2304 (53)>
+5V
TP2901
TP2907
TP2912
TP2913
(7V)
(8V)
(7V)
T1001
1
15
16
17
3
4
12
11
10
14
13
5
6
7
8
9
P804-1
P804-2
P805-1
P805-2
P1006-1
P1006-2
P1302
P1303
P1306-1
P1306-2
P1009
P1011
P1007-1
P1007-2
P1007-6,7
P1007-5
P1007-4
P1007-8
P1007-3
P1008-1
P1008-2
P1008-3
P1008-4
P1010
P4501-1
P4501-3
P3401-1
P3401-2
P3401-6,7
P3401-5
P3401-4
P3401-8
P3401-3
P4501-2
P1001-4
P1001-5
P1001-1
P1001-2
P1301-4
P1301-5
P1301-1
P1305-1
P1305-2
P1305-3
P1301-2
AC IN
4
2
6
1
3
RL1301
R1305
(RUSH CURRENT
PROTECTOR)
T1301
Q1310 TURNS ON WHEN
LAMP STARTS UP.
D1315
Q1310
1
4
5
2
PR1010
PR1012
PR1001 PR1013
18
19
20
21
11
12
13
14
6
PR1011
PR1004
PR1005
PR1008
(+12V) (+6.5V)
VCC
PR1003
TP1012
PR1007
PR1006
AUDIO AMP C.B.A.
MAIN C.B.A.
+5V
+3.3V
7
5
6
IC1007
35
+5V
REG.
IC1004
Q1306
DC/AC INVERTER
Q1307
Q1308
Q1309
31
+9V
REG.
P6002-1
P6002-2
P6002-3
4 3
1 2
OPTICAL
ISOLATOR
OPTICAL
ISOLATOR
OPTICAL
ISOLATOR
+19V
REGULATOR
+17V
REGULATOR
OVER VOLTAGE
PROTECTION
DRIVE
CONTROL
VCC
SWITCHING
OVER CURR.
LIMITER
CONSTANT
VOLTAGE
CONTROL
3
2
32
TP1010
TP1003
TP1008
TP1009
TP1007
TP1006
TP1004
+16V
-16V
+33V
+9V
+3.3V
+6.5V
+5V
-5V
UNSW +9V
(STBY+9V)
TP1005
TP1014
TP1011
+3.45V
IC5015
+3.45V
REG.
IC6304
+5V
REG.
31
IC6003
MAIN MICRO-
CONTROLLER
32
2
+3.45V ON(H)
<FROM IC6003(6)>
FROM
SYSTEM CONTROL
BLOCK DIAGRAM
FAN4
IC1006
(FAN4 DRIVE)
REG.
3 5
4
TP1015
TP1022
TP1023
TP1025
TP804
(8V)
TP1013
TP1021
TP1020
D
S
TP810TP803
TP1301
TP1302
TP1301
TP1303
TP1304
77
IC6302
SUB MICRO-
CONTROLLER
11
56
5 4
DC/DC CONVERTER (STEP-DOWN CHOPPER SYSTEM)
LAMP STATUS
LAMP ON H
LLAMP OFF
ERROR 1
(ERROR PULSE)
"2T"
PULSE (T=128 msec)
PULSE (T=96 msec)
PULSE (T=64 msec)
PULSE (T=32 msec)
ERROR 2
ERROR 3
ERROR 4
SIGNAL
P6003-11
TUNER C.B.A.
P7003-11 +33V
P6003-10 P7003-10 +5V
REAR JACK C.B.A.
P3602-4,15 +5V
P3602-5,14 -5V
P3404-4,15
P3404-5,14
P3602-6,13 +9VP3404-6,13
POWER SUPPLY BLOCK DIAGRAM
POWER SUPPLY BLOCK DIAGRAM