Philips 50PFL3707/F7 Service Manual page 44

Power Supply 2 Schematic Diagram
HOT CIRCUIT. BE CAREFUL.
4
345.0
D
C1621
C1626
CONTINUE
OPEN 820P
POWER SUPPLY 1
/2KV
+345V
S
171.0
HOT+17V
HOT+15V
D
171.0
C1620
C1627
OPEN 820P
/2KV
S
0
3
Q603
2SC2120-Y
(+15V REG.)
15.4 18.5
16.0
R628 R628A
2.7K OPEN
R614 R614A
47 OPEN
D614 D614A
C613
16BSB-T26
TFZGTR16B
47/25V
2 R615 R615A
680 OPEN
Q604
2SA1576UBTLQ
SWITCHING
P-ON-ON
18.5 18.5
17.8
R616
10K
R617
18K
Q605 0
KTC3875S
0.6
-Y-RTK/P
SWITCHING
0 C614 C614A R618
P-ON-ON
0.1 0.1 4.7K
1
Q606
KTC3875S
-Y-RTK/P
SWITCHING
P-ON-ON
G
R1628A
T1604
OPEN
POWER TRANS
Q1603 R1628 5
C1019
TK8A50D 100
1
(SWITCHING)
4
G
171.0 6
D1606
HSS4148TE-E
3
R1630 R1630A
D1606A 680 OPEN
HSC119
2
R1629A
OPEN
9
Q1604 R1629 1
TK8A50D 100
(SWITCHING)
10
G
5.8
D1607
HSS4148TE-E R1631 R1631A
680 OPEN
D1607A
HSC119
T1606
POWER TRANS
2 15
14
R620
100K 4 13
R621
100K
5 12
R622
L1002
100K
TE2520A1201
11
C1616
R625 120/400V
100K
7 10
C1617
120/400V
TE2520A1201
R714
680
R714A
OPEN
IC601
TLP781F(D4-FUNBLLF)
(ISOLATOR)
18.5 1.4
R619
39K
7.6 0
Q708
KTC3875S
-Y-RTK/P
SWITCHING
P-ON-ON
D615A
TFZGTR24B
0.6
D615
24BSC-T26
0
C615 C615A R626 C617 C617A R623
0
0.022 0.022 220K 0.01 0.01 24K
JS700
WIRE
R624
2.7K
HOT
H I
R1051
12
R1030
1K
11.7
IC1001
D1008
SK16-T/R OZ9976GN-C-0-TR
INVERTER
CONTROLLER
3.3 3.3
1 DRIVE1 DRIVE2 16
C1009
D1007
0 11.7 0.1
SK16-T/R 2 GND V-IN 15
R1042
100 ZERO
0 4.9
3 VREF 14
CURRENT
R1032 R1026
SENS
0 150K
4.8 3.3
4 RT ENABLE 13
0.8 4.9
ANALOG
R1028 R1027
5 CT 12
68K 300K DIMMING
1.0 0
6 LCT TIMER 11
R1033
0 2.7 PWM 2.1
7 SSTCMP 10
DIMMING
1.0 VOLTAGE CURRENT 1.1
8 9
SENS SENS
C1013 R1029
330P 75K
R1045
0
R1038 R1040
0.33/2W 0.33/2W
D1005 D1005A
Q707
HSS4148TE-E HSC119
KTC3875S
3.3
R1046 -Y-RTK/P
33K
(RESET)
R1039 R1041
-4.1
0.33/2W 0.33/2W
R1047
R1046A 0
1.1K
OPEN D715 D715A
4V3BSB-T26 TFZGTR4.3B
D714 D714A
HSS4148TE-E HSC119
1 4 Q701
2SC2120-Y
R711
(SW+3.3V/+5.3V)
5.6
C1017
12.0 3.3/5.3
0.047/630V
R705A R706A
1K 1K
4.0/6.0
R705 R706 C712 R710
1 4
390 390 0.1 0
4.0/6.0
C704
OPEN 0 2.5
L1001 IC702
SL431A-AT
SHUNT
REGULATOR
R725 R744
22/1W 22/1W
8.1 5.0
Q702 C705
Q706
2SC2120-Y OPEN
5.6
2SA1576UBTLQ
(SW+5V)
R726
(SWITCHING)
0
5.6 5.6
C701 D706
R718 D706A
4.9 OPEN 5V6BSB-T26
4.7K PZU5.6B2.115
R717
4.7K
R717A
0
Q703 R715 D712
OPEN
KTC3875S 6.8K 1ZB220-YBB
0.6
-Y-RTK/P
(SWITCHING) R716 JS712
0
47K WIRE
R732
390
C717 C717A
0.01 0.01
0
R730 D711
2.2K WIRE
0.6
JS711
C716 C716A R731
0
OPEN
0.01 0.01 47K
Q1001
KTC3875S
-Y-RTK/P
SWITCHING
P-ON-ON
COLD
J
10-4
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
D1011A
D1011
TFZGTR5.6B CN701
OPEN
0
1 VCOM-PWM(NU)
R733 1K
3.3
8.3 2 BACKLIGHT-SW
Q1005
Q1004 2.7
KTC3875S 3 BACKLIGHT-ADJ
2SA1576UBTLQ
3.3
-Y-RTK/P 2.7
(SWITCHING)
4 PROTECT3
(SWITCHING)
0
12.0
5 P-ON+12V
0
R1052
R1053
0 3.3
1K
47K 6 P-ON-H1
3.3
7 P-ON-H2
D1010 D1010A
C1021 OPEN 3.3
OPEN 8 RESET
OPEN
R1048 0
9 OE2(NU)
120K
0
10 GND
3.3 /5.3
11 AL+3.3V/AL+5.3V
0
Q1002
12 GND
C1022
KTC3875S
R1043 R1024 47/25V 25.5
-2.7
-Y-RTK/P 13 AMP+24V
620K 620K
(SWITCHING)
25.5
14 AMP+24V
0
C1018 0
0 0 15 GND
R1044 2.2 C1024
R1049
47/50V 12.0
2.2K 47K
0.6 16 P-ON+12V
12.0
Q1003 17 P-ON+12V
R1050
0
100K KTC3875S 0
18 GND
-Y-RTK/P
(SWITCHING) 0
19 GND
0
20 GND
0
21 GND
12.0
22 P-ON+12V
12.0
23 P-ON+12V
JS701
WIRE
R728 D708 D707 R727
30K MM5Z5V6B RS1BJTB 1
RESET
D709
C715
AMP+24V
OPEN
1/50V
R729
P-ON+12V
33K
P-ON+5V
P-ON-H2
C709
OPEN
R708 C703
1.5K OPEN
D1002
R707 HSS4148TE-E
10K
D1002A
R1003 R1007 R1009 R1010
HSC119
390 OPEN OPEN OPEN
R709
10K D716
HSS4148TE-E
D716A
C702 HSC119
CN1001
0.1
0.2
D1003 14 FB2
HSS4148TE-E
-0.2
13 FB1
D1003A 1.4
R1002 R1008 R1011 R1012
12 PT+2V
HSC119
390 OPEN OPEN OPEN
4.9
11 CNT+5V
4.9
10 VCC+5V
0
9 GND
D1013 D1014
8 NU
TFZGTR15B HSC119
7 NU
C1002
OPEN
6 NU
0
5 VBL-55V
0
4 VBL-55V
3 NU
0
2 VBL+55V
0
1 VBL+55V
D1001
HSS4148TE-E
D1001A
HSC119
D1015
HSC119
2.7
R1005 D1012
15K HSS4148TE-E
0
R1006 C1025 R1054
0
33K 1 6.8K
D1012A
HSC119
K
TO DIGITAL MAIN
CBA UNIT CN3701
or CN3601
CONTINUE
POWER SUPPLY 1
TO LCD MODULE
ASSEMBLY
L
PL12.4SCP2