Philips 55PFL6900/F7 Service Manual page 105

Power Supply 1 Schematic Diagram [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.
HOT CIRCUIT. BE CAREFUL.
L602A
LINE FILTER
AC601
CN601
AC CORD
C604 R601 C614
W
SA601 0.1 1.2M 1
VARISTOR
4 B /310V /1/2W /310V
F602
2.5A/250V
L602
OPEN
2.5A 250V
C1615
BC1601
OPEN
WIRE
BC1602
WIRE
C1612
0.47
/310V
R1624
0.015/5W
3
C1626
OPEN
C1613
220P
/2KV
Q1602
230.0
TK7P60W
R1601 R1617
R1612 D
750K 750K (SWITCHING)
750K
G
R1602 R1618
R1613
750K 750K 13.8
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
(SWITCHING CONTROL)
2
3.6 3.5
1 ZCDB ZCDA 16
6.0 6.0
2 VSENSE VREF 15
R1606
120K
2.9 13.8
3 TSET GDA 14
C1603
6.0 0 0.22
4 PHB GND 13
R1609
5.6K
1.6 15.5
5 COMP VCC 12
0 13.8
R1622
D1610 6 GND GDB 11
C1606
18K
OPEN
1000P
3.3 0.1
C1604
7 VINAC CS 10
2.2
4.4 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
230.0
D
G
13.8
1 S
R1629 0
OPEN
R1655 C1610
OPEN 22P
A
CAUTION ! :
2.5A 250V
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
L601A
LINE FILTER
D602 D603
1N5406BH 1N5406BH
C602
0.1
D601 D604
/310V
1N5406BH 1N5406BH
R624
510K
L601
OPEN
R625
510K
R626
510K
BC602
R627
360.0
BEAD
Q601 36K
D
TK5A65D
R623
(SWITCHING)
G 1.8K
16.5
C606
S C625
220P 0.1
1000P
R617
/2KV
22K
R618
0.12 D615
/2W 1SS400ST
R608
22
R605
D613 D613A
270
D609A
OPEN KDZTR36B
CES520
T1602
R609
TE2520A7001
820K
1 8
R604
2.7K
IC601
R1623 FA5640N-C6-TE3
12K R606
SWITCHING
12K
CONTROL
4 5
5.4 165.0
1 ZCD VH 8
C610
R607 1.3
470P 2 FB NU 7
3.3K
R634
270
0.5 17.0
3 IS VCC 6
C607
1000P
0 17.0 C611
4 GND OUT 5
0.1
R603 C608
D614 R613 C620 D616
OPEN 150P
OPEN OPEN 33/35V TFZVTR27B
D1603
30PFB60
C1621 R1714
D1605
120 22
30PFB60
/400V
D1705A R1712
CES520 180
C1609 R1654
22P OPEN
IC1701
R1707
FA5640N-C6-TE3 820K
R1704 SWITCHING
8.2K
CONTROL
5.6 15.0
1 ZCD VH 8
R1703 C1703
2.3
R1611
6.8K 220P 2 FB NU 7
100
T1601
0.8 15.0
3 IS VCC 6
TE2520A7001 C1701
1000P
0 15.0
R1653
1 8 4 GND OUT 5
68
R1701 C1702 R1709 D1704 C1704
OPEN 150P OPEN 0.1
OPEN
4 5
C1614
220P
/2KV
C1602
C1611
4.7
Q1604
0.1
/50V 2SC5344SY
R1656
(SWITCHING)
R1627 4.7
12K
15.6 19.0
R1633
16.2
2.7K
R1631
1K
Q1607
R1634
2SA1576UBTLQ
47 R1637
(SWITCHING)
180
19.0 19.0
R1657 D1608 C1618
18.3
2.7K TFZVTR16B 10/50V
B C
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
HOT COLD
D607
1N5406BH
C619
D651
1000P/250V
SB3200BR
D605
1N4005
D650
SB3200BR
D606
C605 T601
1N4005
33/400V POWER TRANS
R650 1500P
2.2
R610
2 15
15K
R630 R631 C665
R611
270K 270K 1500P
15K
/630V
R614
3 14
15K
D664A D664
RS1KJTD OPEN
4 13
D620 D619
OPEN OPEN
5 12
D620A D619A
RS1GJTD RS1GJTD
6 11
C616
D621
47
Q602 OPEN
/50V
TK3P50D R619
0
(SWITCHING)
7 10
S D D621A R651 D656
RS1GJTD 1 RS1GJTD
18.9 37.5
C615
G
18.4 22/50V
R636 R635 R633 R632
IC602
10 1.2K 1.2K 1.2K
TLP785F
C612 D618 ERROR
1000P TFZVTR18B
VOLTAGE DET
1.3 21.2
R655
220
R628
0 20.2
22K
D623
C621
2.0 MM5Z5V6B
4700P
1.3
R620 C660
IC604
47K Q603 0.22
2.5 0
SNF431AS
0 KTC3875S
C622 C624 20.2
-Y-RTK/P
SHUNT 0
1000P 0.1 2.5
REGULATOR (SWITCHING) T1701
D660
POWER TRANS
R629 0
SNF431AS
47K
7 10
C1726
C1708
R1746 R1747 1500P D710
33/400V
270K 270K SB3200BS
/630V
6 11
D1714 D1714A
OPEN RS1KJTD D711
SB3200BS
5 13
Q1704
452.0 BC1703
TK6A65D
BEAD
D
(SWITCHING)
D712
SB3200BS
G
C1706
15.5
C1710
S 220P
C725
100P R1718
/2KV 3 14
0.2 1500P
22K R725
2.2 /630V
2 15
R1702 D1715 R1719 D1716
2.7K OPEN 0.12/2W KDZTR36B
IC1702
TLP785F
Q1702
2SA1576UBTLQ ERROR
VOLTAGE DET R738
(SW+15V)
270
2.3 27.0
16.2 16.1
R1711
15.5
10K
0 26.0
R1720 R1710
270 22K
C721
0.1
26.0
2.5
D704
R1705 0
IC1602 SNF431AS
27K 0
TLP785F
0.7 Q1701
(ISOLATOR)
KTC3875S
R1708 0.1 1.3
C1709 -Y-RTK/P
0
22K
220/10V
(SWITCHING)
0 0.1
0
0.7 Q1603
Q691
KTC3875S
KTC3875S
C1707
C1616 R1632 -Y-RTK/P
0 -Y-RTK/P
1000P/250V
1 22K
(SWITCHING)
(SWITCHING)
C1711
R1639 OPEN
10K R1638
18K
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
Q706
C651 C652 D652 D652A
TK40P04M1
470/25V 470/25V OPEN OPEN
(SW+12V)
C650
D S
12.7 12.0
/630V
R757 C703
G
14.0 33K 4.7
Q707
2SA1576UBTLQ
R768 R758
(SWITCHING) 10 5.1K
Q709
C734 R760
21.4 21.4 R761
KTC3875S
R762 0.01 0
1.8K
-Y-RTK/P
22K
R763 20.7
(SWITCHING)
14.4
10K
D653 2.5
OPEN
D751
0
SNF431AS R759
R764 10K
10K
D701
MM5Z10B
R706
1K 0
D655
0.7
Q704
FCH20A20
Q708
KTC3875S
D657
KTC3875S C702 R707
-Y-RTK/P
MM5Z4V3B 0
1 22K
-Y-RTK/P
(SWITCHING)
0
(SWITCHING)
R652
C656
R656
10K
1/50V
4.3K 0.7 R766
0 C735 R765
10K
OPEN 47K
C654 C655 D654A D654 C657 R663 C731 C732
1000/16V 1000/16V OPEN OPEN OPEN OPEN 1000/16V OPEN
R654
220 R666
3.3
62K
Q650
KTC3875S
R657
0
-Y-RTK/P
3.9K
R659 R675 0 (RESET)
68K 100K
R660 R674 Q702
R658
3K 0 KTC3875S
10K 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 R702
OPEN 47K
R756
OPEN
S D
Q705
C728 D716
OPEN
R767 G
OPEN OPEN
R752 OPEN
OPEN
Q703
R748
OPEN
D713 D713A OPEN
OPEN OPEN
R753
R749 R750 R751 C729 R755
OPEN
OPEN OPEN OPEN OPEN OPEN
Q653
D715
KTC3875S
OPEN R754
-Y-RTK/P
OPEN
R741 0 R669
(SWITCHING)
270 10K
0.7
D1711
C722
0 R668
OPEN
OPEN
47K
R739
1.5K
R743
R740
C723 C724 C726 C1004
30K
20K
1000/35V 1000/35V OPEN 1/100V
R744
2.7K
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
KTC3875S 0
-Y-RTK/P
R695
(SWITCHING) 0
47K
E F
CONTINUE
POWER SUPPLY 2
BACKLIGHT-SW
C730 BACKLIGHT-ADJ
OPEN
PROTECT3
P-ON-H2
AMP+13V
C736
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
10K
TO DIGITAL MAIN
CN651
CBA UNIT CN3601
0
1 GND
0
2 GND
3 PROTECT1(NU)
3.3
4 PROTECT3
3.3
5 RESET
3.3
6 BACKLIGHT-SW
3.3
7 P-ON-H2
3.3
8 BACKLIGHT-ADJ
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
21.0
15 P-ON+21V
21.0
C638 16 P-ON+21V
OPEN
21.0
17 P-ON+21V
21.0
18 P-ON+21V
0
19 GND
0
20 GND
0
21 GND
0
22 GND
13.0
23 AMP+13V
13.0
C639 24 AMP+13V
OPEN
13.0
25 AMP+13V
13.0
26 AMP+13V
CONTINUE
POWER SUPPLY 2
VIN
G
PL15.16ASCP1