Philips 46inch LCD TVchassis PL13.14 Service Manual page 48

Power Supply 1 Schematic Diagram
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
OPEN
AC601
CN601
AC CORD
C604 R601
W
SA601
0.1 1.2M
VARISTOR
B /310V /1/2W
4
F602
2.5A/250V
L602A
LINE FILTER
2.5A 250V
C1615 BC1601
OPEN BEAD
BC1602
BEAD
3
C1626
470P/2KV
Q1602
TK8A50D
R1601
R1617 R1612 (SWITCHING)
750K
750K 750K
R1602
R1618 R1613
750K
750K 750K
R1604
R1619 R1614
R1630
750K
750K 750K
OPEN
R1605
R1620 R1615
750K
750K 750K
R1645
68K
C1607
1200P IC1601
R1610
18K UCC28063DR
(SWITCHING CONTROL)
2
1.4 1.4
1 ZCDB ZCDA 16
6.0 6.0
2 VSENSE VREF 15
R1606
120K
3.0 6.8
3 TSET GDA 14
6.0 0
4 PHB GND 13
R1609
5.6K
1.4 15.6
5 COMP VCC 12
0 6.8
D1610 6 GND GDB 11
C1606
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
TK8A50D
(SWITCHING)
R1625
47
1
D1602
R1629
OPEN
OPEN
R1655 C1610
OPEN 22P
A
2.5A 250V
L601
OPEN
C614 C601 D601 D604
1N5406BH 1N5406BH
1 0.22
/310V /310V
D602 D603
1N5406BH 1N5406BH
L601A
LINE FILTER
C1612
0.22
/310V 231.2
Q601
D
TK3A65D
(SWITCHING)
G
1.7
S C625 D611A
0
2200P OPEN
C606 R617
1000P 4.7K
/2KV
BC603
R605
WIRE
270
D609
R618 RS1GJTD
0.22
D613
/2W 1ZB36BB
T1602
TE2520A7001
R609 IC601
820K
1 8 FA5640N
SWITCHING
R604
CONTROL
R1623 2.7K
12K 1.0 153.7
BC1604
1 ZCD VH 8
WIRE
R607 C610
4 5 1.3
4.7K 220P 2 FB NU 7
C1613
OPEN
0.1
3 IS VCC 6
C607
1000P
104.0 0
4 GND OUT 5
D
G R603 C608
OPEN 150P
6.8
S
0
D614A C620 R613
OPEN 33/35V OPEN
D1604
OPEN
D1603 C1622
30PFB60 OPEN
D1605 C1623
30PFB60 OPEN
R1626 C1621
C1609 R1654
47
100
22P OPEN
/400V
R1704 IC1701
C1603 22K
FA5640N
0.22
SWITCHING
CONTROL
1.0
R1622 1 ZCD VH
C1602
18K
4.7
R1703 C1703
2.6
R1611
/50V 4.7K 220P 2 FB NU
100
T1601
0.1
3 IS VCC
TE2520A7001 C1701
1000P
0
C1601 R1653
1 8 4 GND OUT
0.022 OPEN
R1701
C1702
OPEN
150P
BC1603 R1709
WIRE
OPEN
4 5
C1614
104.0
OPEN
D Q1604
C1625 C1611
2SC5344SY
OPEN 0.1
R1656
G (SWITCHING)
4.7
0.8
15.6 21.6
S
0
16.2
R1633
2.7K R1637 2SA1576UBTLQ
R1624 R1634
0.033/5W 47
680
R1627
12K
D1608 C1618
TFZVTR16B 10/50V
Q1608
KTC3875S
-Y-RTK/P
(SWITCHING)
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
D607 R602
1N5406BH OPEN
C619
1000P/250V
C605
JS601
D605
C602 33/400V
1N4005
0.1
/310V
JS602
T601
D606 POWER TRANS
1N4005
1
R610
R624
15K R630 R631 C665
510K
560K 560K
680P
R625 R611
/2KV
510K 15K
2
R626 R614
D664
510K 15K
RS1KJTD
3
R627 BC602
39K BEAD
D620 D619
R623 RS1GJTD RS1GJTD
5
2.7K
R606
22K
6
C616
D615
220/35V
HSC119
Q602 D621
R608
TK3P50D RS1GJTD
10 D617
7
(SWITCHING)
HSC119
R619
4.7
15.6 26.5
R633 R632 IC602
17.6 8.2K 8.2K
TLP781F
C615
ERROR
47
VOLTAGE DET
/50V C612 D618
1000P TFZVTR18B 1.1
0
IC603
R628
OPEN
22K
D623
C621
1.9 MM5Z5V6B
20.9
4700P
1.1
R620
R634 IC604
47K Q603
2.5 -0.2
2.5 270
SL431A-AT KTC3875S
0
C622 C624
SHUNT -Y-RTK/P
0
1000P 0.1
REGULATOR (SWITCHING) T1701
POWER TRANS
R629
47K
D614 C611
2
TFZVTR27B 0.1
R746 R747 C726
270K 270K
1500P
3
/2KV
C1708
33/400V D714
RS1KJTD
Q1704
214.0
4
TK5A65D
D BC1703
(SWITCHING)
D1705 R1714 BEAD
RS1GJTD 10
4.9 G
C1706
D1710 C1710
R1712 R1718 S 1000P
OPEN 1000P
180 22K /2KV
0.1
6
R1719 D1707
0.15/2W 1ZB36BB
R1702
7
2.7K
R1707
820K IC1702
TLP781F
ERROR
R1720
270 VOLTAGE DET
14.6
8
2.6
Q1702
7
2SA1576UBTLQ
(SW+15V) 0
14.6
6
15.6 15.6
5.2
5 R1711 IC1703
15.0
10K
OPEN
R1710
D1704 C1704
22K
OPEN 0.1
R1705 0
27K
0.6 Q1701
KTC3875S
IC1602
R1708
C1709 -Y-RTK/P
0
22K TLP781F
220/10V
(SWITCHING)
(ISOLATOR)
Q1607
(SWITCHING)
IC1603
21.6 21.7
R1639 OPEN
20.9 10K
21.7
R1638
18K R1642
0
10K
0.7 21.5
C1624 R1640
0 C1707
0.1 4.7K
1000P/250V
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
COLD
POWER SUPPLY CBA
D651 D406
OPEN OPEN
15
C651 C652 C407
D650
470/25V 470/25V OPEN
SB3200BR
14
C650
2200P/1KV
3.3
R653
22K
13 Q650
0
KTC3875S
-Y-RTK/P
0 (RESET)
12
D656 D657
Q702
RS1GJTD MM5Z4V3B
KTC3875S
0 0
-Y-RTK/P
R651
R652
11 C656
1 R656 Q654 (SWITCHING)
10K
1/50V 0.7
8.2K KTC3875S
0
-Y-RTK/P 0 R704
R662
D653
47K
47K 0 (RESET)
SB3150BH
10
D655
SB3150BH
R663 R664 R665 Q701
OPEN OPEN OPEN
C654 C655 KTC3875S
470/16V 470/16V 0 -Y-RTK/P
(SWITCHING)
R676
D654
21.1 0.6
6.8/2W
1ZB20BB
0
R654
R655
180 R678
180
6.8/2W
20.1
R657
R679
3.9K
6.8/2W
Q657
R666
R659 2SA950-O
R675
0
22K
OPEN (+3.3V REG.)
R688 R689
R660 2.2 2.7
R674 10.5 3.3
R667
C660 R658 2.7K
OPEN
8.2K
0.1 2.7K
20.1 9.9
2.4
Q657A
OPEN
D660 R661
D661
0
SL431A-AT 3.3K
HSC119
15
D710
SB3200BR
14
D711
0 R683 R684
SB3200BR Q653
3.9 3.9
13 0.7
KTC3875S
-Y-RTK/P
D712 0 R668 C662
(SWITCHING)
SB3200BR 47K 22/50V
R669
10K
C725
2200P/1KV
11
D1713
C723 C724 C1001
OPEN
10 470/63V 470/63V 470/63V
R738 R741
2.2K 1.8K
26.4
D1711
C722
TFZVTR27B
25.4 0.1
R739
15K
R743
43K
C721 R740
0.1 2.7K
R744
1.3K
25.4
2.3
R745
D704
0 3.3K
SL431A-AT
R692
330
C691
0.01
D662
HSC119
0.7
R691
Q691
2.2K
1.4
KTC3875S
1.8 -Y-RTK/P
(SWITCHING) R693
0.7 C692
47K
33/35V
0.7
D663
HSC119
E
CONTINUE
POWER SUPPLY 2
BACKLIGHT-SW
BACKLIGHT-ADJ
C636
PROTECT3
OPEN
AMP+13V
D405
C633
OPEN
OPEN
TO DIGITAL MAIN
CBA UNIT CN3601
CN501
or CN3602
C630 C632
OPEN OPEN 1 LED-CONT(NU)
0
2 PROTECT1
3.3
3 PROTECT3
3.3
4 RESET
C635
3.3
R703 OPEN 5 BACKLIGHT-SW
10K
2.8
6 P-ON-H2
3.3
C631 7 BACKLIGHT-ADJ
OPEN
3.3
8 AL+3.3V
0
C637 9 GND
OPEN
0
10 GND
0
11 GND
0
12 GND
0
13 GND
0
R701
14 GND
10K
12.7
15 AMP+13V
12.7
C639 16 AMP+13V
OPEN
12.7
C701 R702
17 AMP+13V
OPEN 47K
12.7
18 AMP+13V
0
19 GND
21.2
20 P-ON+21V
21.2
C638 21 P-ON+21V
OPEN
21.2
22 P-ON+21V
R685 R686 R687
3.3 3.3 3.3 21.2
23 P-ON+21V
IC651
AP1117E33G-13
(+3.3V REG.)
1 2 3
0 3.3 12.6
(9.9)
C663
C664
100
OPEN
/10V
CONTINUE
POWER SUPPLY 2
VIN
C1004
1/100V
GP002
OPEN
GP003
EARTH PLATE
F G
PL13.14SCP1