Philips 55PFL6900/F7 Service Manual page 109

Power Supply 1 Schematic Diagram [TYPE C]
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.
HOT CIRCUIT. BE CAREFUL.
L602A
LINE FILTER
AC601
CN601
AC CORD
C641
W OPEN
C604 R601
SA601
B 0.1 1.2M
4
VARISTOR
/310V /1/2W
C640
OPEN
F602
2.5A/250V
C1615
OPEN
2.5A 250V
C1612
0.22
/310V
R1624
0.033/5W
3
C1626
OPEN
C1613
OPEN
Q1602
TK7P60W
(SWITCHING)
G
32.0
R1601 R1617
R1612
750K 750K R1630
750K
OPEN
R1602 R1618
R1613
750K 750K
750K
R1604 R1619
R1614
750K 750K
750K
R1605 R1620 R1615
750K 750K 750K
R1645
68K
C1607
1200P IC1601
R1610
18K UCC28063DR
2 (SWITCHING CONTROL)
3.6 1.4
1 ZCDB ZCDA 16
6.0 6.0
2 VSENSE VREF 15 R1626
R1606
47
120K
2.7 5.5
3 TSET GDA 14
C1603
6.0 0 0.22
4 PHB GND 13
R1609
5.6K
0.5 13.7
5 COMP VCC 12
0 6.0
R1622
D1610 6 GND GDB 11
C1606
18K
OPEN
1000P
1.7 0
C1604
7 VINAC CS 10
2.2
3.6 0
8 HVSEN PWMCNTL 9
R1607 C1605
220 1200P
R1616
47K C1608
R1608 1000P
R1621
51K
1.8K
Q1601
TK7P60W
(SWITCHING)
R1625
47
235.0
G
32.0
1
R1629
OPEN
R1655 C1610
OPEN 39P
A
2.5A 250V
L601A
LINE FILTER
D601 D604
1N5406BH 1N5406BH
C614 C601
1 0.22
/310V /310V
D602 D603
1N5406BH 1N5406BH
397.0
Q601
D
TK4P60DA
(SWITCHING)
G
32.0
C606
S C625
16.0
100P
2200P
/2KV
D615
1SS400ST
R617
R608
4.7K
R605 10
270
D609A
CES520
T1602 R618
D613A D613
TE2520A5001 0.18 KDZTR36B OPEN
/2W
1 8
R609
R1623
820K
12K
BC1604
BEAD R604
2.7K
4 5
IC601
FA5640N
SWITCHING
CONTROL
235.0 0 158.8
1 ZCD VH 8
D
C610
R607 1.1
100P 2 FB NU 7
4.7K
0.5 16.9
S 3 IS VCC 6
0 C607
1000P
0 12.0
4 GND OUT 5
C1622
D1603
R603 C608
150P R613 C620
30PFB60
OPEN 150P
/2KV 33/35V
OPEN
C1621
100
C1623
/400V
D1605
150P
30PFB60
/2KV
D1705
CES520
C1609 R1654
39P OPEN
IC1703
FA5640N
R1704 SWITCHING
8.2K
CONTROL
0.6 13.0
1 ZCD VH 8
R1703 C1703
0.6
R1611
6.8K 100P 2 FB NU 7
100
T1601
0 13.0
3 IS VCC 6
TE2520A5001 C1701
C1601 R1653
1000P
0.022 OPEN 0 1.2
1 8 4 GND OUT 5
BC1603
R1701 C1702 R1709 D1704 C1704
BEAD
OPEN 150P OPEN 0.1
OPEN
4 5
C1614
OPEN
Q1604
C1602
C1611 C1625 KTC8050S
D 4.7
0.1 OPEN
-D-RTK/P
/50V
R1656
(SWITCHING)
4.7
15.7 19.5
S
0
R1633
16.3
2.7K
R1627
12K
Q1607
R1637 2SA1576UBTLQ
R1634
47 (SWITCHING)
180
19.5
R1657 D1608 C1618
18.9
2.7K TFZVTR16B 10
B C
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.
HOT COLD
D607
1N5406BH
C642
OPEN
C602
0.1 D605
1N4005
/310V
D606
C605 T601
1N4005
33/400V POWER TRANS
R624 R610
2 15
510K 15K
R630 R631 C665
R625 R611
560K 560K
510K 15K 680P
/630V
R626 R614
3 14
510K 15K
D664
RS1KJTD
4 13
BC602
R627 D620 D619
BEAD
39K OPEN OPEN
R623 5 12
2.7K
D620A D619A
RS1GJTD RS1GJTD
R606
22K
6 11
C616 D621
220 Q602 OPEN
TK3P50D R619
/35V
0
(SWITCHING)
7 10
S D D621A
RS1GJTD
19.0 38.4
R632
C615
G
1.2K
17.8 22/50V
R636
R635 R633
10 IC602
1.2K 1.2K
TLP785F
C612 D618
ERROR
1000P TFZVTR18B
VOLTAGE DET
1.1 21.2
R628
D612
22K
OPEN
0 20.2
D623
C621
1.9 MM5Z5V6B
4700P
C619
1.5
R620
1000P/250V
IC604
47K Q603
2.5 0
SNF431AS KTC3875S
0
R634 C622 C624
-Y-RTK/P
SHUNT 0
270 1000P 0.1
REGULATOR (SWITCHING)
R629
T1701
C611
47K
0.1 POWER TRANS
R762 R746 R747
2 15
100K 100K 100K
C726
C1708
D614
33/400V R763 R760 R761 2200P
TFZVTR27B
100K 100K 100K /630V
3 14
D714A D714
RS1KJTD OPEN
4 13
Q1704
360.0 BC1703
TK6A65D
BEAD
D
(SWITCHING)
R1714
10
G
C1706
16.0
D1710 C1710 100P
R1712 S
OPEN 1000P R1718
180 /2KV 6 11
0
22K
7 10
R1702 D1707 R1719 D1707A
R1707
2.7K OPEN 0.12/2W KDZTR36B
820K
IC1702
TLP785F
Q1702
ERROR
2SA1576UBTLQ
VOLTAGE DET
(SW+15V)
1.7 27.0
13.7 13.0
R1711
13.7
10K
0 26.0
R1720 R1710
270 22K
R1705 0
27K
0.7 Q1701
KTC3875S
IC1602
R1708
C1709 -Y-RTK/P
0
22K
220/10V TLP785F
(SWITCHING)
(ISOLATOR)
0.1 1.2
0 0
0.7
0 Q1603
KTC3875S
C643
C1616 R1632 -Y-RTK/P
0
1000P/250V
1 22K
(SWITCHING)
19.6
C1711
R1639
1000P/250V
10K R1638
18K
D
10-7
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
R671 0.7
R676
Q671
1.5K
4.7K
KTC3875S 0
-Y-RTK/P
R677
R672 (SWITCHING)
0
D651 47K
1.5K
OPEN
D650 D406
SB3200BR OPEN
C650
C651 C652
1500P
R650
330/25V 330/25V
/630V 2.2
3.3
R653
22K
Q650
0
KTC3875S R703
10K
-Y-RTK/P
0 (RESET)
D656 D657
Q702
RS1GJTD MM5Z4V3B
KTC3875S
0 0
-Y-RTK/P
R652
C656
R651 R656 Q654 (SWITCHING)
10K
1/50V 0.7
1 8.2K
KTC3875S
0
-Y-RTK/P 0 R704
R662
D658
47K
47K 0 (RESET)
OPEN
D653
SB3150BH
C657 R663 R664 R665 Q701
D655 OPEN OPEN OPEN OPEN
KTC3875S
SB3150BH
-Y-RTK/P
0 (SWITCHING)
C654 C655 D654
OPEN
1000 1000
0.7
/16V
/16V
0
C701
OPEN
R654
R655
180
180
R657
3.9K Q705
R659
OPEN
3.9K
R675 R666
R660
68K 0
C660 R658 27K
0.1 2.7K
R674 R667
R756 R752
0 15K
20.3 OPEN OPEN
2.5
Q703
D660 D661
OPEN
0
SNF431AS 1SS400ST
R749 R750 R751
R661
OPEN OPEN OPEN
3.3K
D706 C729 R755
OPEN OPEN OPEN
D710
SB3200BS 0
Q653
0.7
D715
KTC3875S
D711
OPEN
-Y-RTK/P
SB3200BS
0 R668
(SWITCHING)
47K
D712
SB3200BS R669
10K
R725
2.2
C725
D713
2200P C723 C724 C730
OPEN
1000/35V 1000/35V OPEN
/630V
R738 R741
270 270
D705
C722
OPEN
OPEN
R739
1.5K
C740
OPEN
R743
C721 R740 30K
10K
0.1
R744
26.0 2.7K
2.5
D704
R745
0
SNF431AS
3.3K
R692
330
C691
0.01
0
R691
Q691
10K
0.7
KTC3875S
-Y-RTK/P
(SWITCHING) R693
0 0.7
R694
47K Q692
5.6K
0
KTC3875S
-Y-RTK/P
R695
(SWITCHING) 0
47K
E F
CONTINUE
C630
POWER SUPPLY 2
OPEN
BACKLIGHT-SW
BACKLIGHT-ADJ
C636
PROTECT3
OPEN
AMP+13V
D405
C633
OPEN
OPEN
TO DIGITAL MAIN
CN501 CBA UNIT CN3601
C632
OPEN
1 NU
0
2 PROTECT1(NU)
3.3
3 PROTECT3
3.3
4 RESET
3.2
C635
5 BACKLIGHT-SW
OPEN
3.1
6 P-ON-H2
3.2
7 BACKLIGHT-ADJ
3.3
8 AL+3.3V
0
C637 9 GND
OPEN
0
10 GND
C631
OPEN 0
11 GND
0
12 GND
0
13 GND
0
14 GND
12.9
15 AMP+13V
R701
12.9
10K C639 16 AMP+13V
OPEN
12.9
17 AMP+13V
R702 12.9
18 AMP+13V
47K
0
19 GND
21.1
20 P-ON+21V
21.1
C638 21 P-ON+21V
OPEN
21.1
22 P-ON+21V
21.1
23 P-ON+21V
C728
OPEN
R748
OPEN
R753
OPEN
D716
OPEN
R754
OPEN
CONTINUE
POWER SUPPLY 2
VIN
C731
1/100V
C693
2.2
G
PL15.16CSCP1