Philips 32PFL1507/F8 Service Manual page 48

Power Supply CBA Bottom View (main Power Supply CBA)
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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.
*
When you conduct on a component level repair for the Power Supply CBA for any models within this service manual,
make sure to refer the right Block Diagram/Schematic Diagram/CBA and Parts List.
For the main CBA, the last digit of the board number, which is engraved on every board, should be a number (e.g. BA17F1F0102 4).
For the sub CBA, the last digit of the board number, which is engraved on every board, should be an alphabet (e.g. BA17F1F0102 Y).
CN1102
C1112
T1102
J1156
GND
J1155
GND
J1024
J1020
GND
PROT5
J1072
GND
J1021
J1049
J1048
GND
BL-SW
IS5
C1206
J1034
J1069
DC-12V J1059
GND GND
C1302
J1064
DUTY
J1071
DUTY
J1170
J1063
GND
GND
D201
J1079
PANEL24V
PROTECT3
J1083
BL-ADJ J1080
Q1202
J1065
P-ON-H1
J1088
GND
Q203
C215
Q206
C219
4 1
C214 D221
5
8
IC200
J200 Q221
VCOM2
C220
PANEL15.8V
J1111
J1172
D210
J1119
GND
D210B
PANEL-6V J1123
Q215
J1125
PANEL+3.3V
J1173 ALL5V
Q216
J1128
JS200
PROTECT3
OE2
F
4A/125V
C1114 C1108
H.V. CAUTION
*
BA17F1F0102 5
C1709
Q1702 Q1703
C1709A
J1032
PROT6
J1029
LN1
J1043
VSEN
J1045
STB
J1050
NH1
PROT2 J1052
12
1 J1056
D1201 D1500
PROT
D1501
DC-12V
J1057
J1062 PROT
PROT5
Q1204
Q1303
13 24
Q1301
C203
Q211
R235
R233
D212
J1098
Q213-C
J1099
-7.5V
J1105
PROTECT1
Q222
J1106
+16V
R239
J1118
C228
Q207-B
R657
D655B
D655
C230
D652
J1139 Q636
IC202
P-ON-H2
GND
C226
J1133 J1129
J1137
PANEL+3.3V J1136 ALL5V
P-ON-H2 J1085
ALL5V
D656
D656B
D635 J1143 1
ALL5V
JS656
for D656A CN632
2
E D
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
CN1101
C1110
C1104
T1101
J1007
SW2
SW2
C1700A J1008
Q1700 Q1701
J1025
LN1
C649
C649A
C604
C648
C648A
D612
C610
C607
C614
T600
C639
D650
D650B
HOT
COLD
Q633
J1131
OVL J1135
P-ON-H2
GND J1141
J1171
GND
J1144
GND Q635
J1140
19
P-ON-H2
18
C B
10-16
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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CN1100
4
C1106
J1169
GND
T1100
J1157
GND
VS2 J1022
3
COLD
HOT
D602
D601
C602
R602
R611
R608 L601
D611
C601
2
Q601
L600
CN600
C600
SA601
CN601
R601
1
F601
4A/125V
FH601
FH602
A
BA17F1F01025