Philips 55PFL6900/F7 Service Manual page 162

Power Supply CBA Bottom View [TYPE A, D]
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) 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.
GP002
R1429
D1402
J707
P-ON+21V
Q707
R764
R761
R762
D1401
R766
C736
R765
D701 R706
R759 R758
R757
C734
C702
C703
R707
R760
C1417
Q704
Q709
R705 J624
J611
PROTECT-3
R749
Q705
C639
C638
R767
R752
C637
D715
D716
C728 R702
C701
Q701
R653
R691 Q653
R692 R701
R668
C693
R669
D660
C691 D661
C669
R695 R674
Q691
R667
GND
R675
R659
R693
R666
Q692 R655
C660
R657
D621A
R1638
C1602
R1639
Q1604
R1634
R1633
Q603
R620
R629
C1618
C624
R1637
R1656 R619
D623
D1608 R632
Drive J612
R1657
R633 R635 R636
J1618
PFC GND
J609
D623Cathode
IC604
F602
T 2.5A L/250V
SA601
2.5A 250V
C1407 R1411 C1311 C1310
C1320
C1420 R1320 R1319
R1312 R1309
R1412
R1330 R1331
C1307
R1409
R1430 R1431 R1408
R1333
R1420
Q1303
R1421 R1321
C1410
C1406
C1411 R1433 R1311
C1306
R1324
C1413
R1328
R1323 R1335
R1418 D1302
D1303
R1308
R1413
D1304
D1406 R1313
R1410
R1322 D1306 C1305
R1416
C1405 Q1301
R1306
R1406 J1416
R1407
Vcc4
C1409
C1309
R1401
L1402 R1402 R1310
R1307
R1403
C1304 R1327
D1403 R1404
C1408
R1301
R1426
D1301
L1302
C1308
R1317 R1303
D1401A L1401 C1401 R1302
R1316
VLED4
J1402
C1315
C1416
D1301A
C1415
R1424
R1304
C1414 C1316
C1314
C1404 R1325 R1326
R1427
R1425
D1404
R768
R1422
D1405
R1423 Q1003
J1005
AMP+13V
R1010
R1006
R750
R751 C729
Q1004 J1004
R1009 P-ON-H2
R748 R753
R755
J619
ALL+3.3V C1002
D655
Q703
D653
R754
R650
C650
R704
R652
R662
D656
R651
J615
C656
R656
R661
R660
R658
R631
D619A
Vout PFC
J604
R630
J603
D619
Vout PFC
C665
R606 R610
C606
D664A
D620A
C616 R624
R611
D613A
R625
BC602
R614
D615
R613
R617
D614
D609A
OUT J605
D603
D616
C620
IC601 R609 R608
R605 R604
PFC GND
C611 C625
J607
C612 IC601Vcc
C608
L601A L601
D618
J608 R634 R607 R603
C607
R628
C621 C610
R627
R626
C622
L602A L602
BA51RCF0102 1
CAUTION ! : For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
R1109
C1107
R1133
R1112
C1120
R1108
R1131
R1233
R1230 R1231 C1207
C1220
C1110
R1209
R1229
R1221
R1129
C1211
R1208
R1220
R1211
C1210
C1206 C1111
R1228
J1219 Q1103 C1113
R1207
C1213
C1204
GND D1202 R1202 R1128
R1203
J1215
D1102
Vcc2
R1204
J1115
R1213
R1215 R1210 R1115 C1112
D1206 Vcc1
R1113
C1205
J1205
R1206
Q1201Gate
J1105
C1212 Q1101Gate
R1201 R1118
C1301 R1218
R1216
D1203
R1116
C1302
R1217
R1226
L1202 R1227
L1102 C1108
C1208
R1225
L1201
D1201 R1222 L1101
D1205
C1202 D1204
R1223
VLED1
D1201A
D1101A
J1201 C1101
R1224 R1104
C1215 C1201
VLED2 C1115
C1216
C1102
J1204
LED+27V
C1116
C1214
C1114
Q1001
R1005
R1001
R1002
C1004
R1003
R1004
C1001
R725
D713A
R1008
T1701
D652A
C722 D1711
R738
R1707
GP003
C1702 R1701
C1704
R1709
R1720
R1702
D1704
J1706
PFC GND
R1746 R1704
C1703
R1703
R1747 D1714A
BC1703
J1707
Vout PFC
C1726
J1708 D1714
R1617
Vout PFC
R1618
C602
R1601
Q1601
C1621
R1625
R1622
R1629
R1624
R1631
C1615
C1626
C1612 R1627
C1613 J1604
ZCDB
R1654
J1602
Q1602
VREF
J1613
R1630
VIN PFC
J1614
PFC R1626
VIN R1613
R1623
D602 R1614
R1615
R1612
R1611
D601
10-60
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.
J101
GND GP001
R1111
C1106
D1106
C1105
C1109
R1106
R1101
R1107
C1104
R1117
R1102
D1103
R1103
R1127 R1126
R1125
J1103
R1122
D1104
D1105
R1124 R1123
J1104
LED+27V
D704
C721
R740
C727
R744
R745
R743
R741
R739
PFC GND J1701
C1701
J1703
R1708
Q1702 C
Q1603
D1705A C1616
R1712
R1632
R1714
R1705
C1710
D1716
R1718
R1710
R1711
R1619
R1602 R1604
R1610
C1601
C1607
R1653
C1604
C1611
R1605
R1645
R1620
R1608
R1607
C1605
C1608
C1609 IC1601
R1655
C1610
R1606
C1603
R1621
R1616
GP004
C1707
BA51RCF01021