Philips 55PFL6900/F7 Service Manual page 107

Power Supply 1 Schematic Diagram [TYPE B]
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.
L602
LINE FILTER
AC601
CN601
AC CORD
C604
W C614
SA601 C604A R601
1
0.1
VARISTOR OPEN OPEN
4 B /310V
/310V
F602
2.5A/250V
2.5A 250V
BC1601
C1615
WIRE
OPEN
BC1602
WIRE
R1624
0.015/5W
3
C1626
OPEN
C1613
470P
/2KV
Q1602
105.0
TK7P60W
R1601 R1617
R1612 D
750K 750K (SWITCHING)
750K
G
R1602 R1618
R1613
750K 750K 6.0
750K
S
0
R1630
R1604 R1619
R1614
OPEN
750K 750K
750K
R1626
R1605 R1620 R1615
47
750K 750K 750K
R1645
68K
C1607
1200P IC1601
R1610
18K UCC28063DR
2 (SWITCHING CONTROL)
1.4 1.4
1 ZCDB ZCDA 16
6.0 6.0
2 VSENSE VREF 15
R1606
120K
2.8 6.1
3 TSET GDA 14
C1603
6.0 0 0.22
4 PHB GND 13
R1609
5.6K
0.8 17.2
COMP VCC
5 12
0 6.1
R1622
D1610 6 GND GDB 11
C1606
18K
OPEN
1000P
1.7 0
C1604
7 VINAC CS 10
2.2
3.6 0.1
8 HVSEN PWMCNTL 9
C1601
8200P
R1607 C1605
220 1200P
R1616
47K C1608
R1608 1000P
R1621
51K
1.8K
Q1601
TK7P60W
(SWITCHING)
R1625
47
105.0
D
G
6.0
1
S
R1629 0
OPEN
R1655 C1610
C888
OPEN 22P
10/16V
A
2.5A 250V
L601
LINE FILTER
D602 D603
C614A 1N5406BH 1N5406BH
OPEN
D601 D604
1N5406BH 1N5406BH
D606 D605
1N4005 1N4005
BC602
C1612
BEAD
215.0
0.47
Q601
D
/310V
TK5A65D
(SWITCHING)
G
0
C606
S C625
0.1
220P
OPEN
R617
/2KV
22K
R618
0.18
/2W
R608
10
R605
D613A
180
D609A
KDZTR36B
CES520
R610 R611 R614
10K 10K 10K
T1602
TE2520A7001
R624
R604
510K
1 8 1K
R625 IC601
510K
R1623 BM1P062FJ
12K
SWITCHING
R626
CONTROL
510K
4 5
0.9 105.0
1 ACMONI VH 8
C610
R627 1.0
100P 2 FB NU 7
13K
R616
270
0 21.0
R623 3 CS VCC 6
C607
560
1000P
0 1.6 C611
4 GND OUT 5
0.1
C608
C620 D614
150P
OPEN OPEN
D1603
30PFB60
C1621 C1622 R1714
D1605
22
100 100
30PFB60
/400V /400V
D1705A R1712
CES520 180
C1609 R1654
22P OPEN
IC1701
R1707
FA5640N 820K
R1704 SWITCHING
10K
CONTROL
0.5 16.8
1 ZCD VH 8
R1703 C1703
0.8
R1611
6.8K 150P 2 FB NU 7
100
T1601
0.1 16.8
3 IS VCC 6
TE2520A7001 C1701
1000P
0 1.7
R1653
1 8 4 GND OUT 5
68
R1701 C1702 R1709 D1704 C1704
OPEN
150P OPEN OPEN 0.1
4 5
C1614
470P
/2KV
C1602 Q1604
C1611
4.7 KTC8050S
0.1
/50V -D-RTK/P
R1656
(SWITCHING)
R1627 4.7
12K
17.2 21.5
D1611
R1633
OPEN
1.8
3.3K
Q1607
R1634
R1637 2SA1576UBTLQ
47
(SWITCHING)
C999 330
10/16V
21.5 21.6
R1657 D1608 C1618
20.9
3.3K TFZVTR18B 10/50V
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 C619
470P/250V
C601
10/400V
T601
POWER TRANS
6 7
R630 R631 C665
270K 270K
1500P
/630V
5 8
D664A D664B
RS1KJTD OPEN
4 9
10
R634
0
2 11
D621B
Q602
OPEN
OPEN
R619
0
S D
1 12
D621A R651
G RS1GJTD 1
R636 C615
OPEN 47/50V
R635 R633 R632
OPEN OPEN OPEN
IC602
TLP785F
C612 D618
OPEN OPEN
ERROR
VOLTAGE DET
1.0 21.2
R655
R612
220
10K
0 20.2
C613
0.022
20.2
2.5
T1701
D660
POWER TRANS
0
SNF431AS
1 12
C1726
C1705
R1746 R1747
10/400V 2200P
180K 180K
/630V
2 11
D710
D1714A
SB3200BR
RS1KJTD
3
Q1704
218.0 BC1703
TK7A60W
BEAD D711
D
(SWITCHING) SB3200BR
9
G
C1706
1.6
C1710 150P D712
S
OPEN R1718 SB3200BR
/2KV 5 8
0.1
22K
6 R725
1
R1702 R1719 D1716
2.7K 0.15/2W KDZTR36B
IC1702
TLP785F
Q1702
ERROR
2SA1576UBTLQ
VOLTAGE DET R738
(SW+15V)
560
0.8 26.6
17.3 17.2
R1711
16.6
10K
0 25.6
R1720 R1710
270 22K
C721
0.1
25.6
2.5
D704
0
R1705
IC1602 SNF431AS
27K 0.1
TLP785F
0.7 Q1701
(ISOLATOR)
KTC3875S
R1708 0.1 12.0
C1709 -Y-RTK/P
0
22K
220/10V
(SWITCHING)
0 0.1
0.7
0.1 Q1603
Q691
KTC3875S
KTC3875S
C1707
C1616 R1631 -Y-RTK/P
0 -Y-RTK/P
1000P/250V
33/50V
47K
(SWITCHING)
(SWITCHING)
C1711
R1639 1000P/250V
10K R1638
18K
D
10-5
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
D651
SB3200BR
Q706
D650 C651 C652 D652A
TK40P04M1
SB3200BR 470/25V 470/25V OPEN
(SW+12V)
C650
D S
R650 1500P
2.2 /630V 14.5 12.0
R757
G
33K
Q707 12.5
2SA1576UBTLQ
R767 R758
(SWITCHING) 10 5.1K
Q709
C734 R760
21.3 20.5 R761 KTC3875S
R762 0.01 0
1.8K
-Y-RTK/P
22K
R763 21.3
(SWITCHING)
14.4
10K
D653 2.5
FCH20A20
D751
0
SNF431AS R759
R764 10K
10K
D701
MM5Z10B
R706
1K
D655
0.7
FCH20A20
D657 Q708
MM5Z4V3B C702 R707
KTC3875S
0
1 22K
-Y-RTK/P
0
D656 R652
C656 (SWITCHING)
R656
RS1GJTD 10K
1/50V
8.2K
0.7 R766
0 C735 R765
10K
OPEN 47K
C654 C655 D654A C657 R663 C731 C732
1000/16V OPEN OPEN 1000/16V OPEN OPEN 1000/16V
R654
220 R666
3.3
62K
Q650
KTC3875S
R657
0
-Y-RTK/P
3.9K
R659 R675 0 (RESET)
68K 100K
R660 R674 Q702
C660 R658
3K 0
0.22 10K KTC3875S R653
0
-Y-RTK/P 22K R703
R667
10K
OPEN (SWITCHING)
0
D661 0 R704
Q701
1SS400ST 47K
KTC3875S
0
R661
C669 -Y-RTK/P
0
6.8K
100P Q654
(SWITCHING)
0.7
KTC3875S
0.7
-Y-RTK/P
R662
0
47K 0 (RESET) C701
OPEN
C725
1500P
/630V
D713A
OPEN
Q653
KTC3875S
-Y-RTK/P
R741 0 R669
(SWITCHING)
3.6K 10K
0.7
D1711
C722
0 R668
TFZVTR27B
OPEN
47K
R739
15K
R743
R740
C723 C724 C726 C737
56K
20K
330/63V 330/63V OPEN 1/100V
R744
0
C727 R745
OPEN 3.3K
R692
330
C691
0.01
0.1
R691
10K
0.7
R693
0 47K 0.7
R694 C693
Q692
5.6K 2.2
0
KTC3875S
-Y-RTK/P
R695
(SWITCHING) 0
47K
E F
CONTINUE
POWER SUPPLY 2
BACKLIGHT-SW
BACKLIGHT-ADJ
PROTECT3
P-ON-H2
AMP+13V
C733 C736
4.7 OPEN
TO DIGITAL MAIN
CN652
CBA UNIT CN3902
0
1 GND
0
2 GND
3.3
0
3 GND
0 12.0
4 LCD+12V
0
12.0
5 LCD+12V
12.0
6 LCD+12V
R705
0 10K
Q704
KTC3875S
-Y-RTK/P
(SWITCHING)
TO DIGITAL MAIN
CN651
CBA UNIT CN3601
0
1 GND
0
2 GND
0
3 PROTECT1(NU)
3.3
4 PROTECT3
3.3
5 RESET
3.3
6 BACKLIGHT-SW
3.3
7 P-ON-H2
R664 8 BACKLIGHT-ADJ
0
3.3
9 AL+3.3V
3.3
10 LCD-P-ON
0
C637 11 GND
OPEN
0
12 GND
0
13 GND
R701
0
10K
14 GND
21.3
15 P-ON+21V
R702
21.3
47K C638 16 P-ON+21V
OPEN
21.3
17 P-ON+21V
21.3
18 P-ON+21V
0
19 GND
0
20 GND
0
21 GND
0
22 GND
12.5
23 AMP+13V
12.5
C639 24 AMP+13V
OPEN
12.5
25 AMP+13V
12.5
26 AMP+13V
CONTINUE
POWER SUPPLY 2
VIN
GP001
OPEN
GP002
OPEN
GP003
OPEN
GP004
OPEN
G
PL15.16BSCP1