Philips 55PFL6900/F7 Service Manual page 170

Power Supply CBA Bottom View [TYPE F]
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
D1402
J707
P-ON+21V
Q707
R764
R761
R762
D1401
R766
C736
R765
D701 R706
R759 R758
R757
C734
C702
C703
R707
R760
Q704
Q709
J624
R705
J611
PROTECT-3
R749
Q705
C639
C638
R767
R752
C637
D715
D716
C728 R702
C701
R653 Q701
R691
R692 R701 Q653
R668
C693
R669
D660
C691 D661
C669
R695 R674
Q691
R667
GND
R675
R659
R693
R666
Q692 R655
C660
R657
R1638
C1602
R1639
Q1604
R1634
R1633
Q603
R620
R1637 C1618
R629
C624
Drive J612
D1608
D623
R633
R1656
C626
Q609
R1657
R632
F602
SA601
2.5A 250V
C1407 R1411 C1311 C1310
C1320
R1320 R1319
C1420 R1312 R1309
R1412
R1330
R1331
C1307
R1429 R1430 R1409 R1408
R1431
R1333
R1420
R1421 R1321
C1410
C1406
C1411
R1433 R1311
C1306
C1413 R1324
R1328
R1323 R1335
R1418 D1302
D1303
R1308
R1413
D1304
D1406 R1410 R1313
R1322 D1306
C1305
R1416
Q1301
C1405 R1306
J1416
R1407 R1406
Vcc4
C1409
R1401
L1402 R1402 R1310
R1307
R1403
C1309
D1403 R1404 R1327
C1304
C1408
R1301
R1426 D1301
L1401
L1302
C1308
R1317
R1303
D1401A C1401
R1316 R1302
VLED4
J1402 C1315
C1416
D1301A L1301
C1415
R1424
C1414 C1316 R1304
C1404 C1314 R1325 R1326
R1427
R1425
D1404
R768
R1422
D1405
Q1003
R1423
J1005
AMP+13V
R1010
R1006
R750
R751 C729
P-ON-H2
Q1004
J1004
R1009
R753
R748
R755
J619
ALL+3.3V
C1002
D655
Q703
D653
R754
R650
C650
R704
R652
R662
D656
R651
C656
J615
R656
R661
R660
R658
R631
PFC Vout
R630
J604
D621A
J603
C665 PFC Vout
C606
D664A
R610
D613A
C602
R617
BC602
R623
R627
D610
D606
D609A
C611 OUT J605
C608
IC601
R608
IC604
J601 D605
C621 R604 R624
R628
R634 IS
J602
FB
J606
ACMONI
C610 C607
R605
C625
R612 C613 R626 R625 L601A
L602A
BA51RJF0102 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 C1113
R1207
C1213
C1204
GND D1202 R1202 R1128
R1203
J1215
D1102
Vcc2
R1204
J1115
R1213
R1215 D1106
C1212 R1210 Vcc1 R1115
R1113
C1205
J1205
R1206
Q1201Gate J1105
D1206 Q1101Gate
R1201 R1118
C1301
R1218
R1216
D1203
C1302 R1116
R1217
R1226
L1202 R1227
C1208 L1102 C1108
R1225
D1201 R1222
L1201 D1205
C1202 D1204 L1101
C1303
R1223
VLED1
D1201A D1101A
J1201 R1224 C1101
C1215 C1201 R1104
VLED2 C1115
C1216
C1102
J1204
LED+22V
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
D1716
R1703
R1747 D1714A
BC1703
PFC Vout J1707
C1726
PFC Vout J1708
D1714
R1617
R1618
R1601 R1602
Q1601
R1625
R1622
R1629
C1621
R1631
C1626 C1615
R1627
C1613
J1604
C1612
ZCDB
R1654
J1602
Q1602
VREF
J1613
R1630
PFC VIN
J1614
PFC VIN R1613 R1626
R1623
D602
R1614
R1615
R1612
D601 R1611
10-68
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
C1112
C1109 C1105
R1106
R1101
R1107
C1104
R1117
R1102 D1103
R1103
R1127 R1126
R1125
J1103
R1122
D1104 D1105
R1124
R1123
J1104
LED+22V
D704
C721
R740
C727
R744
R745
R741 R743
R739
PFC GND J1701
C1701
J1703
R1708
Q1702 C
Q1603
D1705A C1616
R1712
R1632
R1714
R1705
C1710
R1718
R1710
R1711
R1619
R1604
R1610
C1601
C1607
R1653
C1604
C1611
R1605
R1645
R1620
R1608
R1607
C1605
C1608
IC1601
C1609
R1655
C1610
R1606
C1603
R1621
R1616
GP004
C1707
BA51RJF01021