Panasonic PT-52LCX66-K Service Manual page 109

POWER SUPPLY BLOCK DIAGRAM (2/2)
MAIN P.C.B.
IC1104
TP1102 TP1117
+5V
STBY +7V CN6000-1 5 4
REG.
DT +30V CN6000-5
CONTINUE
DRV +17V CN6000-6
POWER SUPPLY
BLOCK DIAGRAM(1/2) DT +9V CN6000-(7-9)
(CN1514) AC STOP(L) CN6000-2
AC SW ON(H) CN6000-3
IC1102
TP1110 TP1100
+5V
1 2
REG.
Q1102, TP1116
Q1105
SW
DC/DC CONVERTER (STEP-DOWN CHOPPER SYSTEM)
IC1100 (DC-DC CONVERTER)
3
4
5
SWITCHING
6
OVER CURR.
LIMITER
19 VCC
CONSTANT
ON/OFF VOLTAGE
CONTROL
CONTROL
18
Q1100
CONTINUE
POWER SUPPLY
AMP +18V CN4501-2
BLOCK DIAGRAM(1/2)
(CN1516)
TP1113 TP1101
IC1105 TP1103 TP1118
+3.3V
5 4
REG.
Q1103, TP1115
Q1104
SW
IC1103
TP1111 TP1104
+2.5V
1 2
REG.
TP1112 TP1105
1
2
22
23
24
25
16
15
13
Q1108, OVER D1108-D1111, OVER
Q1109, CURRENT D1123-D1126 VOLTAGE
ETC DETECT DETECT
Q1106,
Q1107
SW
ERROR VOLTAGE DETECT
VOLTAGE LINE ERROR VOLTAGE
+9V DT MORE THAN +11V
+5V DT MORE THAN +8V
+3.3V MORE THAN +5V
+2.5V MORE THAN +5V
SOS2
Q6008 Q6007
LOW +B SW
Q6010 Q6016
TO/FROM
AC ATOP (L)
SYSTEM CONTROL
BLOCK DIAGRAM
AC SW ON (H)
DIGITAL TUNER P.C.B.
(DT +30V)
CN6003-8 DT12-8
(DT +9V)
CN6003-(51-53) DT12-(51-53)
(DT +5V)
CN6003-54,57 DT12-54,57
POWER SW P.C.B.
(STBY +3.3V)
CN6001-5 CN6801-4
LCD DRIVE P.C.B.
IC2701
(+15.5V REGULATOR)
+15.5V
(DRV +17V)
CN6008-1 CN2704-1 2 REG.
(FAN +9V)
CN6008-2 CN2704-2
(SW +5V)
CN6008-3 CN2704-3
1 5
(SW +3.3V)
CN6008-4 CN2704-4
IC2702
(FAN1 DRIVE)
2 REG.
1 5
SW +5V
SW +2.5V
SW +3.3V
SW +9V IC2703
(FAN2 DRIVE)
2 REG.
1 5
IC2704
(FAN3 DRIVE)
2 REG.
1 5
CN2705-1
IRIS P.C.B.
CN9502-1
IC9504
+5V
5 4
REG.
BASE P.C.B.
(SW +2.5V)
CN3000-(35-37)
(STBY +5V)
CN3000-43 CN3103-43
(SW +9V)
CN3000-44 CN3103-44
(SW +3.3V)
CN3000-40,41 CN3103-40,41
PT-52LCX66/PT-56LCX66/PT-61LCX66/PT-52LCX16/PT-56LCX16/PT-52LCX66-K/PT-56LCX16-K/PT-61LCX66-K
109
PT-52LCX66-K / PT-56LCX16-K / PT-61LCX66-K
DT +30V
DT +9V
DT +5V
STBY+3.3V
TP2730 TP2731 TP2729
4 SW +15.5V
LCD ON (H)
<FROM IC2301 (33)>
TP2742 TP2734
(7.0V)
4 CN2701-1
CN2701-2
CN2701-3
IC2705
(OP AMP)
FAN1 SPEED CONTROL
5
<FROM IC2301(23)>
7
6
FAN OH (H)
<FROM IC2301 (42)>
TP2743 TP2737
(8.0V)
4 CN2702-1
CN2702-2
CN2702-3
FAN2 SPEED CONTROL
<FROM IC2301 (63)>
TP2744 TP2739
(7.0V)
4 CN2703-1
CN2703-2
CN2703-3
FAN3 SPEED CONTROL
<FROM IC2301 (52)>
+3.3V
FAN1 LOCK (H)
+17V
<TO IC2301 (29)>
+9V
FAN2 LOCK (H)
+5V
<TO IC2301 (30)>
+3.3V
FAN3 LOCK (H)
<TO IC2301 (31)>
+9V
+5V
FRONT JACK/OPERATION P.C.B.
CN3101-1 CN6701-1 STBY+5V
+9V
SW +3.3V
SW +18V
POWER SUPPLY BLOCK DIAGRAM (2/2)
FAN 1
FAN2
FAN3