Philips 55PFL3907/F7 Service Manual page 53

Chassis pl11.9
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Power Supply CBA Bottom View
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F1601) is blown , check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
J1096
BL-SW
C1818
7;ALL+3.3V
6;GND
4
3;P-ON+12V
1
D1727
R1214
J1071
P-ON-H2
ALL+4.3V
J1068
1;BL-SW
2;BL-ADJ
3;P-ON-H2
JS1803
4;GND
5;BL-ADJ
6;ALL+4.3V
D1105B
10;GND
7
14;P-ON+12V
11
D1105
J1118
C1746
GND
D1104
D1103
24V
GND
GND
J1057
T1201
D1205
J1125
HOT-GND
C1208
IC1201
D1210A
J1032
HOT-GND
D1210B
HOT+20V
C1603
L1601
C1602
C1606
SA1601
R1609
HOT
CN1601
1
4A 250V
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
BA17P5F0103 3
C1738
C1737
D1736
C1736
D1735
Q1202
D1737
R1746
D1730
D1738
C1102
J1062
ALL+4.3V
J1063
ALL+4.3V
Q1707
C1101
C1744
J1059
D1101
GND
GND
J1056
Q1404
D1402B
Q1403
D1402
C1202
R1202
J1127
J1040
HOT-GND
HOT-GND
J1037
C1704
C1250
HOT-GND
J1048
HOT-GND
C1713
R1707
J1029
J1026
IC1702
20
11
BC1202
D1216
D1710B
1
0 1
D1217
D1703
C1719
RL1201
J1017
COLD
D1215
2
3
CAUTION ! :
For continued protection against risk of fire,
replace only with same type 4A, 250V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 250V.
J1087
J1083
J1078
J1077
J1072
J1070
J1069
COLD
T1701
C1413
HOT
D1701
J1036
J1033
J1030
Q1701
C1703
R1713
D1706
D1404
Q1702
D1403
D1610
C1411
C1609
R1442
J1011
J1010
J1009
J1008
C1619
D1212
HOT
COLD
D1609
4
10-23
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
D1733
C1817
D1732
ALL+3.3V
GND
C1758
1
4
P-ON+12V
L1701
J1086
BC1707
JS1801
8
5
J1081
BL-ADJ
C1734
INV+24V
D1801
C1718
P-ON-H2
J1076
Q1711
C1735
R1804
JS1802
A-DIM
BL-ADJ
BL-SW
P-ON-H2
D1717
C1725
COLD
2
5
L1604
D1605
Q1602
HOT-GND
J1018
11
8
2
5
J1015
IC1401
1
8
9
16
Q1601
J1005
HOT+15V
J1003
11
L1603
8
HOT-GND
C1614
J1004
R1604
J1108
HOT-GND
5
6
BA17P5F01033

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