Power Supply Schematic Diagram - Philips 39” LCD TV Service Manual

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.
AC601
4
CN601
AC CORD
W
B
R601
F602
1.2M/1/2W
2.5A/250V
SA601
VARISTOR
2.5A 250V
C604
0.22/310V
L601
LINE FILTER
JS602
JS601
OPEN
OPEN
C614
0.22/310V
D601
1N5406BH
L602
LINE FILTER
JS605 JS606
OPEN OPEN
D602
3 1N5406BH
C605 C611
R614 220 220
560K
/200V /200V
R603 BC601
560K WIRE
R604
BC602
560K
WIRE
Q601
292.0
D TK10A50D
(SWITCHING)
C606
G
680P
4.4
/2KV
S
0.1 Q602
2SC5344SY
C607
SWITCHING
1200P
CONTROL
4.4
0.4
2
0
Q621
KTC3875S
-Y-RTK/P
D607A D607
OVER
TFZVTR27B OPEN
VOLTAGE
0.4
PROTECT
0
R622
0
0
R623
10K
D609A R609
CES520 100
R611 D608A D608 C609 R612
0.3/2W OPEN 1ZB36BB 0.068 3.9K
1
BC603
BEAD
BC604
BEAD
A
2.5A 250V
C603 OPEN
C602
2200P/250V
C616 OPEN
JS609
JS603
JS604
D655
SB3A0BH
R610
OPEN
D604
D655A
1N5406BH
OPEN
R602
OPEN
D653
SB3A0BH
D653A
D603
OPEN
1N5406BH
C617 OPEN C654
470/16V
T601
POWER TRANS
6 7
R605 R619
C612
OPEN 100K
1500P R651 D656
1 RS1BJTD
/1KV
5 8
C656 R693
4.7/50V OPEN
D606
RS1JJTD
9
C650
4
2200P/1KV
10
D651
SB3150BH
C608 R606 R607
0.033 120 120
D651A
2 11
OPEN
D650
SB3150BH
1 12
R608 D605
1.2K MM5Z6V2B
D650A
OPEN C651
470/25V
D659
D621
D610
SB3150BH
1SS400
1SS400
D659A
R613 OPEN
270
R621 D623
560 MM5Z30B
C623
4.7
IC601
OPEN R655 R654
C622 C621 180 180
OPEN OPEN 4
1
C610
R657
1500P
3.9K
3 2
C666
OPEN
IC602
TLP781F C660
0.1
ERROR
VOLTAGE DET
14.2 20.7
4 1
19.6
2.5
0.4 19.6
D660
2
3 0
SL431A-AT
HOT COLD
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.
POWER SUPPLY CBA
C655
D654 D654A R663 R664 R665
470/16V
1ZB20BB OPEN 4.7K OPEN OPEN
3.4 Q650
D657 R652
KTC3875S
MM5Z11B 100K
-2.7
-Y-RTK/P
(RESET)
R694
0
33K
D658 R691
OPEN OPEN
R653
0 R656
33K
Q702
OPEN
R704
OPEN
R701
C652 C653 C667 C668 D652 D652A OPEN
470/25V 470/25V 470/25V 470/25V 1ZB30BB OPEN
C701
OPEN
R676 R678 R679
4.7/2W 4.7/2W 4.7/2W
R666
R659 R675
0
22K OPEN
R660 R674
R667
R658 2.7K OPEN
8.2K
2.7K
D661
1SS400
R661
3.3K
0 R669
10K
Q653 0.7
KTC3875S-Y-RTK/P
(SWITCHING)
0 R668
47K
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Q659
OPEN
R692
OPEN
R703
OPEN
Q701
OPEN
R702
OPEN Q657
D405
2SA950-O
OPEN
(+3.3V REG.)
R688 R689 R685 R686 R687
2.2 2.7 3.3 3.3 3.3
11.2 3.3
D406
IC651
OPEN
Q657A 10.6 AP1117E33G-13
OPEN
(+3.3V REG.)
1 2 3
0 3.3 12.1
(10.6)
R683 R684
3.9 3.9
C664 C663
C662
OPEN 100/10V
Q658 22/50V
2SA950-O
R690
(+3.3V REG.)
1.5
D663
12.1 3.4 OPEN
Q658A
11.4
OPEN
R673
OPEN
11.4 3.4
Q656
R662
KTC3875S
3.3K
3.9
R670 R671 R672 -Y-RTK/P
270 270 270 R680
(SWITCHING)
100
C665 R682
0.1 0
3.9
2.5
D662
0
SL431A-AT R681
10K
E
CONTINUE
POWER 2
P-ON+21V
BACKLIGHT-ADJ
PROTECT3
BACKLIGHT-SW
TO DIGITAL MAIN
CBA UNIT CN3601
CN501
or CN3602 or CN3701
0
1 LED-CONT(NU)
0
2 PROTECT1
C633 3.4
3 PROTECT3
OPEN
3.3
4 RESET
C636 3.2
5 BACKLIGHT-SW
OPEN
C630 C632 3.3
6 P-ON-H2
OPEN OPEN
3.2
7 BACKLIGHT-ADJ
3.4
8 AL+3.3V
0
C661 C631
9 GND
OPEN OPEN
0
10 GND
0
11 GND
0
12 GND
0
R677 13 GND
10K
0
14 GND
12.1
15 AMP+13V
12.1
16 AMP+13V
C635 C638
OPEN OPEN 12.1
17 AMP+13V
12.1
18 AMP+13V
0
19 GND
21.1
20 P-ON+21V
21.1
C639 21 P-ON+21V
OPEN
21.1
22 P-ON+21V
21.1
23 P-ON+21V
F G
PL13.11SCP1