Philips 55PFL6900/F7 Service Manual page 112

Power Supply 1 Schematic Diagram [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.
HOT CIRCUIT. BE CAREFUL.
L602A
LINE FILTER
AC601
CN601
AC CORD
C604 R601 C614
W
SA601 0.1 1.2M 1
VARISTOR
B /310V /1/2W /310V
4
F602
2.5A/250V
2.5A 250V
C1615
OPEN
C1612
0.47
/310V
R1624
0.015/5W
3
C1626
OPEN
C1613
220P
/2KV
Q1602
226.0
TK7P60W
R1601 R1617
R1612 D
750K 750K (SWITCHING)
750K
G
R1602 R1618
R1613
750K 750K 14.6
750K
S
R1630 0
R1604 R1619
R1614
OPEN
750K 750K
750K
R1626
R1605 R1620 R1615
47
750K 750K 750K
R1645
68K
C1607
IC1601
1200P
R1610
UCC28063DR
18K
(SWITCHING CONTROL)
2
6.0 1.4
1 ZCDB ZCDA 16
6.0 5.9
2 VSENSE VREF 15
R1606
120K
3.0 6.4
3 TSET GDA 14
C1603
5.9 0
0.22
4 PHB GND 13
R1609
5.6K
1.0 15.7
5 COMP VCC 12
0 6.4
R1622
D1610 6 GND GDB 11
C1606
18K
OPEN
1000P
4.8 0
C1604
7 VINAC CS 10
2.2
5.2 0
C1601
8 HVSEN PWMCNTL 9
8200P
R1607 C1605
220 1200P
R1616
47K C1608
R1608 1000P
R1621
51K
1.8K
Q1601
TK7P60W
(SWITCHING)
R1625
47
226.0
D
G
14.6
1 S
R1629 0
OPEN
R1655 C1610
OPEN 22P
A
2.5A 250V
L601A
LINE FILTER
D601 D604
1N5406BH 1N5406BH
D602 D603
1N5406BH 1N5406BH
D606
1N4005
R624
D605 C602
220K
1N4005
0.1
/310V R625
220K
R626
220K
BC602
R627
340.0
BEAD
Q601 15K
D
TK5A65D
R623
(SWITCHING)
G 2.7K
13.0
C606
S C625
100P 0
100P
/2KV
R617
22K
R608
22
R605
270
R618
D613A D609A
0.22
KDZTR36B RB520SM-30
/2W
R604
T1602 1K
TE2520A7001
C613 R612
0.022 10K
1 8
IC601
R1623 BM1P062FJ
12K
SWITCHING
CONTROL
4 5
2.5 157.0
1 ACMONI VH 8
C610
1.1
OPEN 2 FB NU 7
R634
270
0.1 18.9
3 CS VCC 6
C608 C607
0 12.7 C611
150P 1000P
4 GND OUT 5
0.1
D616
OPEN
D1603
SF38GB0
C1621 R1714
D1605
22
120
SF38GB0
/400V
D1705A R1712
RB520SM-30 180
C1609 R1654
22P OPEN
IC1701
R1707
FA5640N-C6-TE3 820K
R1704 SWITCHING
8.2K
CONTROL
3.7 15.0
1 ZCD VH 8
R1703 C1703
2.2
R1611
6.8K 220P 2 FB NU 7
100
T1601
1.8 15.0
3 IS VCC 6
TE2520A7001 C1701
R1653 1000P
0 15.8
68
1 8 4 GND OUT 5
R1701 C1702 R1709 D1704 C1704
OPEN 150P OPEN 0.1
OPEN
4 5
C1614
220P
/2KV
C1602 Q1604
C1611
4.7 KTC8050S
0.1
/50V -D-RTK/P
R1656
(SWITCHING)
R1627 4.7
12K
15.6 19.4
R1633
3.3K
16.2
R1631
1K
Q1607
R1634
R1637 2SA1576UBTLQ
47
(SWITCHING)
100
19.3 19.4
R1657 D1608 C1618
18.7
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
1000P/250V
C605
33/400V
T601
POWER TRANS
R610
2 15
10K
R630 R631 C665
R611
270K 270K 1500P
10K
/630V
R614
3 14
10K
D664A D664
RS1KJTD OPEN
4 13
D621
OPEN
5 12
D621A
RS1GJTD
6 11
C615
47
/50V
7 10
R651
1
D610 R632
OPEN OPEN
Q609
OPEN
IC602
R633
C626
OPEN TLP785F
OPEN
ERROR
VOLTAGE DET
1.1 21.2
R628 R655
22K 220
0 20.2
D623
C621
MM5Z5V6B
4700P
3.0
1.1
R620
IC604
47K Q603
2.5 0
SNF431AS
0 KTC3875S
-Y-RTK/P
SHUNT 0 20.2
REGULATOR (SWITCHING) 2.5
T1701
R629 C624
D660
47K 0.1 POWER TRANS
0
SNF431AS
7 10
C1726
C1708
R1746 R1747 1500P
33/400V
270K 270K
/630V
6 11
D1714 D1714A
OPEN RS1KJTD
5 13
Q1704
400.0 BC1703
TK6A65D
BEAD
D
(SWITCHING)
G
C1706
15.5
C1710
220P
S
100P
R1718 /2KV 3 14
0
R725
22K
2.2
2 15
R1702 R1719 D1716
2.7K 0.12/2W KDZTR36B
IC1702
TLP785F
Q1702
2SA1576UBTLQ ERROR
VOLTAGE DET R738
(SW+15V)
270
2.2 21.7
15.6 15.6
R1711
15.0
10K
0 20.8
R1720 R1710
270 22K
20.8
2.5
D704
R1705 0
IC1602 SNF431AS
27K 0
TLP785F
0.7 Q1701
(ISOLATOR)
KTC3875S
R1708 0.1 1.2
C1709 -Y-RTK/P
0
22K
220/10V
(SWITCHING)
0 0
0.7
0 Q1603
KTC3875S
C1707
C1616 R1632 -Y-RTK/P
0
1000P/250V
1 22K
(SWITCHING)
C1711
R1639 OPEN
10K R1638
18K
D
10-10
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
D651
OPEN
Q706
D650 C651 C652
TK40P04M1
SB3200BR 470/25V 470/25V
(SW+12V)
C650
D S
R650 1500P
12.5 12.1
2.2 /630V
R757
G
15.0 33K
Q707
2SA1576UBTLQ
R768 R758
(SWITCHING) 10 5.1K
C734 R760
21.4 21.3 R761
0.01 0
1.8K
20.6
R763
15.0
10K
D653 2.5
OPEN R762
D751
22K
0
SNF431AS R759
R764 10K
10K
D701
MM5Z10B
R706
1K
D655
0.7
FCH20A20
Q708
D657
KTC3875S C702 R707
MM5Z4V3B
1 22K
-Y-RTK/P
0
(SWITCHING)
D656 R652
C656
R656
RS1GJTD 10K
1/50V
4.3K 0.7 R766
0 C735 R765
10K
OPEN 47K
C654 C655 D654A C657 R663 C731
1000/16V 1000/16V OPEN OPEN OPEN 1000/16V
R654
220 R666
3.4
62K
Q650
KTC3875S
R657
0
-Y-RTK/P
3.9K
R659 R675 0 (RESET)
68K 100K
R660 R674 Q702
C660 R658
3K 0 KTC3875S
0.22 10K R653
0
-Y-RTK/P 22K
R667
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
D710
0.7
SB3200BS -Y-RTK/P
R662
0
47K 0 (RESET) C701
OPEN
D711
SB3200BS
R756
D712
OPEN
S D
SB3200BS
Q705
C728
OPEN
R767 G
C725 OPEN
R752 OPEN
1500P
OPEN
/630V
Q703
R748
OPEN
D713A 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
C721 R740
C723 C724 C726 C1004
24K
0.1 20K
1000/35V 1000/35V OPEN OPEN
R744
1.8K
C727 R745
OPEN 3.3K
R692
330
C691
0.01
0
R691
Q691
10K
KTC3875S 0.7
-Y-RTK/P
R693
(SWITCHING)
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
D652A C730 BACKLIGHT-ADJ
OPEN OPEN
PROTECT3
P-ON-H2
AMP+13V
C703 C736
4.7 OPEN
TO DIGITAL MAIN
CN652
CBA UNIT CN3902
Q709 0
1 GND
KTC3875S
0
-Y-RTK/P
2 GND
(SWITCHING) 3.4
0
3 GND
0 12.1
4 LCD+12V
0
12.1
5 LCD+12V
12.1
6 LCD+12V
R705
0 10K
Q704
KTC3875S
-Y-RTK/P
0
(SWITCHING)
TO DIGITAL MAIN
CN651
CBA UNIT CN3601
0
1 GND
0
C732
2 GND
OPEN
3 PROTECT1(NU)
3.4
4 PROTECT3
3.4
5 RESET
3.3
6 BACKLIGHT-SW
3.3
7 P-ON-H2
3.3
8 BACKLIGHT-ADJ
3.4
9 AL+3.3V
3.3
R703 10 LCD-P-ON
10K
0
C637 11 GND
OPEN
0
12 GND
0
13 GND
R701
0
10K
14 GND
21.4
15 P-ON+21V
R702
21.4
47K C638 16 P-ON+21V
OPEN
21.4
17 P-ON+21V
21.4
18 P-ON+21V
0
19 GND
0
20 GND
D716
0
OPEN 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
G
PL15.16FSCP1