Power Supply Schematic Diagram - Philips 32PFL4507/F7 Service Manual

Power Supply Schematic Diagram

CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F601) 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
1
2
R601
F601
1.2M/1/2W
4A/125V
SA601
SURGE
ABSORBER
4A 125V
C604
0.22/275V
L601
LINE FILTER
JS601 JS602 SA602
GT601
OPEN OPEN OPEN
OPEN
C614
0.22/275V
D601
1N5406BH
L602
LINE
FILTER
SA603 GT602
OPEN OPEN
D602
1N5406BH
3
C605
C615
R614
330
OPEN
330K R501 Q501
/200V
47/2W 2SK3498
R603 (SWITCHING)
330K
164.0 3.6
R604
3.6
330K
C501
0.1
D502 R502
UDZSNPTE-1730B 1.5M
Q601
TK8A50D D501
166.9
UDZSNPTE-1733B
D (SWITCHING)
R605
330K
G
9.6
S
0
2 Q602
C607
2SC2120-Y
1200P
SWITCHING
CONTROL
3.6
0.4
R610
0
C606
OPEN
820P
/2KV
D607A
D607
OPEN
1ZB27BB
D609A
OPEN
D609
D608A D608 R611 C609
OPEN 1ZB36BB 0.36 0.082
/2W
1 BC602
BEAD
BC603
BEAD
BC604
OPEN
A
4A 125V
POWER SUPPLY CBA
C603
1000P/250V
D604
1N5406BH
R602
1.2/5W
D603
1N5406BH
D653
C601 OPEN SB3200BR
C617 OPEN C654 C655
D654
470/35V 470/35V
1ZB30BB
T601
POWER TRANS
6 7
R651 D656 D657
1 RS1BJTB MM5Z5V6B
5 8
C656
D657B
1/50V
OPEN
BC601
9
BEAD
4
10 C650
2200P/1KV
R606A R607A D651
2 11
OPEN OPEN SB3150BH
C608 R606 R607 D650
0.039 270 270 SB3150BH
1 12
C651
R608 D605B
470/25V
1.5K OPEN
C602
1000P/250V
R608A D605
OPEN MM5Z4V3B
C616
1000P/250V
D610A
D610
OPEN
R613A R613
IC601 R655A
OPEN 220
OPEN
TLP781F(D4-FUNBLLF)
ERROR
VOLTAGE DET R655
180
14.3 21.0
C610 C659
R657
1000P OPEN
3.9K
0.5 19.9
R657A
R612 R612A OPEN
2.2K OPEN
C660
0.1
D661 D661B
OPEN 5V6BSB-T26
D660
SL431A-AT
Q652
KTC3875S-Y-RTK/P
15.4
(SWITCHING) R664
10K
0
0
R663
47K
HOT COLD
B C
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4A, 125V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
BC1002
C1001 C1002 C1003
WIRE
330/25V OPEN 1
C1010 C1009 C1008
47/100V 1/100V 1/100V
C1014 D1005B D1005
1000P OPEN OPEN
IC1001
HA7209PC
LED BACKLIGHT
DRIVER
3.0
1
0.5
2 DRIVE
0.5
3 DRIVE
0.5
4 DRIVE
0.5
5 DRIVE
0
6 GND
D654A R650 R650A R678 R678A 0
7 DRIVE
OPEN 5.6K OPEN 5.6K OPEN
0
8 DRIVE
0
C658 9 DRIVE
OPEN
1.5
10 OVP
3.3
R652 1.2
Q650 11 ISET
56K
-2.5
KTC3875S-Y-RTK/P
R1008
(RESET) 1.0
360 12 RT
0
R1009 R1007
8.2K 100K
C652 C653 D652 D652A
470/25V 470/25V OPEN OPEN
Q655
OPEN
R654A
OPEN
R676
OPEN
R654 R673
180 5.6
C664
OPEN
R659
22K
R660
R665
R658 2.7K
10K
2.7K R675
R670A R671A
OPEN
OPEN OPEN
R666 R670 R671
R661
OPEN Q654 180 180
3.3K
OPEN
R667 C662
OPEN OPEN
0 R669
10K
Q653 0.3
KTC3875S-Y-RTK/P
(SWITCHING)
0 R668
22K
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
L1001
C1004
22uH D102A
1
OPEN
D1001
SK210TD
Q1001
D1002
AP18T10AGH-HF
D1004 (SWITCHING)
18.0
D
R1004 OPEN
R1001
560K
G 10
2.3
C1007
R1005 220P/1KV S
R1002
0.1
200K
200
C1006
C1005
R1003 1000P
R1006 OPEN
0.18/1W
27K
R1010
C1015 R1011 C1011 C1012 C1013
10K
OPEN 100K 47/100V 1/100V OPEN
R403
OPEN
0
24
NU 23
R1012 C1016
100 1
1.7
COMP 22
C1018
0
OPEN
MCP 21
R1019
OPEN
0
SEL 20
R1015 R1014
240 240
19.0
VIN 19
C1017 C1021
0
0.1 OPEN
GND 18
R1018
0
5.0
DRIVE LDO 17
2.7
16
C1019
0
4.7
15
0.1
CONTROL
14
LOGIC R1016
10K
3.0
13
C1022 C1020 R1017
OPEN OPEN 100K
R1502
0
R653
47K
D405
OPEN
D405A
OPEN
D406
OPEN
D658A D658
OPEN OPEN
D406A
OPEN
21.0 3.3
Q656
2SC2120-Y
R662 C661
3.9
(+3.3V REG.) 1.5K OPEN
R680
JS632
10K
R672A C665 R682
OPEN 0.1 0
JS631
R672
OPEN
180
R677
10K
D662
SL431A-AT R681 D663
10K OPEN
D663A
OPEN
E F
D402B D402
24BSB-T26 OPEN
R401
8.2K
D401
D401A
OPEN
R402
3K
TO LCD PANEL
CN1001
ASSEMBLY
R1501 OPEN
0.5
1 ILED4
R1503 0
0.5
2 ILED3
R1504
3 NU
OPEN
39.0
4 VLED
5 NU
R1020 0
0.5
6 ILED1
R1021 0
0.5
7 ILED2
TO DIGITAL MAIN
C632 OPEN
CBA UNIT CN3601
CN631
or CN3701
C631 OPEN
0
1 VCOM-PWM(NU)
C630 OPEN
3.3
2 BACKLIGHT-SW
3.3
3 BACKLIGHT-ADJ
3.3
4 PROTECT3
0
5 PROTECT1
C633 0
6 P-ON-H1(NU)
OPEN
3.3
7 P-ON-H2
3.3
8 RESET
0
C635 C636 9 OE2(NU)
OPEN OPEN
0
10 GND
3.3
11 AL+3.3V
0
12 GND
24.7
13 AMP+24V
24.7
14 AMP+24V
C663 C637 C638
100/10V OPEN OPEN 0
15 GND
21.0
16 P-ON+21V
21.0
C639 17 P-ON+21V
OPEN
0
18 GND
0
19 GND
0
20 GND
0
21 GND
21.0
22 P-ON+21V
21.0
23 P-ON+21V
UNLESS OTHERWISE SPECIFIED:
DIODES ARE HSS4148TE-E.
G
PL12.2SCP