Philips 22PFL4507/F7 Service Manual page 43

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
0.47/275V
L601
LINE FILTER
D601 D604
1N5397BD 1N5397BD
D602 D603
1N5397BD 1N5397BD
3
C605
100 R614
330K R501
/200V
47/2W
R603
Q501
330K
2SK3498
(SWITCHING)
R604
330K
160.4 3.9
3.6
C501
0.1
C606
470P
D502 R502
/2KV
UDZSNPTE-1730B 1.5M
Q601
TK5A50D D501
165.4
UDZSNPTE-1733B
D (SWITCHING)
R605
C608
330K
0.047
G
3.9
S
0.1
Q602
2 R608
C607
2SC2120-Y
1.2K
1200P
SWITCHING
CONTROL
R608A
3.9
OPEN
0.4
R610
0
OPEN
D607A
D607
OPEN
1ZB27BB
D609A
HSC119TRF-E
D609
D608A D608 R611 C609 R612
OPEN 1ZB36BB 0.68 0.082 2.2K
/2W
1
BC602
BEAD
BC603
OPEN
A
4A 125V
POWER SUPPLY CBA
C603 OPEN
C601 OPEN
R602
1.2/3W
C650
1500P/1KV
D650
SB3150BH
C651 C652
T601 470/25V 1000/25V
POWER TRANS
1 11
D653
SK210TD
2 10
BC601 C654 C655
WIRE 470/25V 470/25V
4 9
5 8
R606A R607A
OPEN OPEN
6 12
R606 R607 R651 D656 D657
270 270 0 RS1BJTB MM5Z20B
C656
D657B
1/50V
OPEN
D605B
OPEN
C602
2200P/250V
D605
MM5Z4V3B
D610A D610
HSC119TRF-E
R613A R613
IC601 R655A
OPEN 220
OPEN
TLP781F(D4-FUNBLLF)
ERROR
VOLTAGE DET R655
180
15.7 20.7
C610
R657
1000P
3.9K
0.4 19.6
R657A
R612A OPEN
OPEN
C660
0.1
D661 D661B
PZU5.6B2.115 5V6BSB-T26
D660
SL431A-AT
Q652
KTC3875S-Y-RTK/P
15.0
(SWITCHING) R664
10K
0.1
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
1000P 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
0
7 DRIVE
D652 D652A 0
8 DRIVE
OPEN OPEN
0
9 DRIVE
1.3
10 OVP
1.3
11 ISET
R1008
1.0
1.1K 12 RT
D654 D654A R650 R650A
R1009 R1007
1ZB20BB OPEN 5.6K OPEN
16K 100K
C658
OPEN
Q650
KTC3875S
-Y-RTK/P
(RESET)
R652 3.4
12K D666
0
R678 0
100K
D666A
HSC119TRF-E
Q655
OPEN
R654A
OPEN
R676
OPEN
R654 R673
180 5.6
C659
OPEN
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
0.1 R669
10K
Q653 0.7
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
47uH D102A
1
HSC119TRF-E
D1001
SK110TC
Q1001
D1002
AP18T10AGH-HF
D1004 (SWITCHING)
22.4
D
R1004 OPEN
R1001
160K
G 10
2.6
C1007
R1005 OPEN S
R1002
0.1
430K
200
C1006
C1005
R1003 470P
D1005 R1006 OPEN
0.33/1W
OPEN 27K
R1010
C1015 R1011 C1011 C1012 C1013
10K
OPEN 100K OPEN OPEN 1/100V
R403
OPEN
1.2
24
NU 23
R1012 C1016
100 1
1.4
COMP 22
C1018
0
OPEN
MCP 21
R1019
0
0
SEL 20
R1015 R1014
240 240
19.3
VIN 19
C1017 C1021
0
0.1 OPEN
GND 18
R1018
OPEN
4.9
DRIVE LDO 17
2.6
16
C1019
0
4.7
15
0.1
CONTROL 14
LOGIC R1016
10K
3.0
13
C1022 C1020 R1017
470P OPEN 100K
R1502
OPEN
D405
OPEN
D405A
R653
OPEN
43K
D406
OPEN
D658A D658
OPEN OPEN
D406A
OPEN
21.0 3.4
Q656
2SC2120-Y
R662 C661
4.0
(+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 TFZGTR24B
R401
4.7K
D401
D401A
HSC119TRF-E
R402
3K
TO LCD PANEL
CN1001
ASSEMBLY
R1501 0
0.5
1 ILED4
R1503 0
0.5
2 ILED3
R1504
3 NU
OPEN
44.6
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
23 VCOM-PWM(NU)
C630 OPEN
3.3
22 BACKLIGHT-SW
3.3
21 BACKLIGHT-ADJ
3.3
20 PROTECT3
0
19 PROTECT1
C633
18 P-ON-H1(NU)
OPEN
3.3
17 P-ON-H2
3.3
16 RESET
0
C635 C636 15 OE2(NU)
OPEN OPEN
0
14 GND
3.3
13 AL+3.3V
0
12 GND
14.2
11 AMP+13V
14.2
10 AMP+13V
C663 C637 C638
100/10V OPEN OPEN 0
9 GND
21.0
8 P-ON+21V
21.0
C639 7 P-ON+21V
OPEN
0
6 GND
0
5 GND
0
4 GND
0
3 GND
21.0
2 P-ON+21V
21.0
1 P-ON+21V
UNLESS OTHERWISE SPECIFIED:
DIODES ARE HSS4148TE-E.
G
PL12.0SCP