Philips 75PFL5704/F7 Service Manual page 58

Power Supply 1 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.
L601
LINE FILTER
ACB601
CN601
AC CORD
4 C620
W 100P
C601 C602
/250V R601
SA601 0.22 0.22
B
VARISTOR OPEN
/310V /310V
C619
100P
/250V
F601
4A/250V
4A 250V
C623 C1612 C1615 C1616
1/450V 1/450V OPEN
470P
/250V
R1624
0.011
/2W
3
BC1602
BEAD
C1613
220P
/2KV
Q1602
286.0
AP65SL380DI-A1
D
(SWITCHING)
R1601 R1602 R1603
G
2.2M 2.2M 2.2M
14.8
/1/2W /1/2W /1/2W
S
0
R1634
OPEN
R1632 R1633
100 100
R1604
51K
C1607
1000P
R1605
IC1601
7.5K
UCC28063DR
(SWITCHING CONTROL)
3.3 3.3
1 ZCDB ZCDA 16
6.0 6.0
C1609
2 VSENSE VREF 15
R1606 100P
120K
2.8 15.8
3 TSET GDA 14
C1603
2
6.0 0 0.1
4 PHB GND 13
R1607
5.6K
1.9 15.4
5 COMP VCC 12
0 15.8
R1622
D1610 6 GND GDB 11
C1606 330K
OPEN
1000P
3.3 0
C1604
7 VINAC CS 10
2.2
3.5 0.1 C1601
8 HVSEN PWMCNTL 9 0.01
R1608 C1605
33K 1000P
R1610
R1609 C1608
33K
1.1K 1000P
R1611 BC1601
3K BEAD
C1614
220P
R1635 R1636
/2KV
100 100
286.0
D
Q1601
G AP65SL380DI-A1
(SWITCHING)
14.8
S
0
R1637
OPEN
R1617 C1610
OPEN 100P
1
POWER SUPPLY CBA
A
4A 250V
L602 L603
LINE FILTER LINE FILTER
D601
OPEN
C603
0.22
TH602
/310V OPEN
D602
D25XB60-7000
TH601
D603 D604
THERMISTOR
1N4005FB 1N4005FB
R608 R609
15K 620K
/1/2W /1/2W
R620
15K
/1/2W
BC601
BEAD
345.0
Q601
D TK5A65D R613
12K
(SWITCHING)
G
R614
3.3K
C605 12.4
R606
S C606
100P
10
1.0 OPEN
/2KV
R602
4.7K
R605 R604 R603
L1602 R607 270 47 47
D607
0.22
LC-28-0084 KDZVTR36B /1/2W
/2W
1 6 D606
R619
RB520SM-30
1K
2 R1614
12K
3 4
R610 IC601
10K
BM1P062FJ
C613
C612 SWITCHING 0.01
0.022
CONTROL
2.5 177.0
1 LAT VH 8
2.5
ACMONI
1.1
2 FB NU 7
R612
270
C611 1.0 17.9
3 IS VCC 6
1000P
D1602 0 12.4 C609
4 GND OUT 5
FCU20A40 0.1
C610
220P
D608
OPEN
C1621 C1622 BC1702 C1702
C1623 BEAD
Q603 100 100 100
OPEN
/400V /400V /400V
KTC3875S
-Y-RTK/P BC1701
1.1 OPEN
(SWITCHING)
0
BC1703
C622
OPEN
0 R621 C621
10
22K 1
/50V
R1616
OPEN
C1617 C1619 C1620
OPEN 10/16V OPEN
D1601
FCU20A40
OPEN OPEN
R1613
100
R1612 L1601
68
LC-28-0084
1 6
2
R1615
12K
3 4
Q1603
KTC8050S
18.0
-D-RTK/P
R1628
(SWITCHING)
4.7
0
15.4 18.4
C1602
C1611 R1618
4.7
0.1 12K
16.1
/50V
R1619 R1620 R1621
Q1604
150 150 150
R1629 2SA1576UBTLQ
(SWITCHING)
180
18.4 18.5
D1608 R1627 C1618
TFZVTR16B 2.2K 10/50V R1630
17.8 10K
R1626
2.2K
B C
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4A, 250V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 250V.
C617
1000P/250V
C616
100P/250V
D605
1N5406BRV
T601
POWER TRANS
6
R655 D654
C604 R618 C607 1 RS1GJTD
C624
0.1 7
120K 1500P
OPEN
/310V
/1/2W /2KV
5
D613
8
RS1KJTD
4
10
2
11
D611
RS1GJTD
1
C608
100/35V
C618
470P/250V
R615
22K
IC602
TLP785F
ERROR
VOLTAGE DET
1.1 20.0
0 19.0
D612
2.2 R674
MM5Z5V6B
2K
IC603
C615
AS431BNTR C659
0 1.1 1000P/250V
R617
-E1 0.1
47K Q602
0
SHUNT
KTC3875S
REGULATOR
-Y-RTK/P
0
19.0
(SWITCHING)
2.5
C1701
R616 C614
470P/250V
IC651
47K 0.1 0
AS431BNTR-E1
SHUNT
REGULATOR
C1706 R1716 244.0
22 D
100
T1702
/400V Q1701
POWER TRANS
G TK10A60W
(SWITCHING)
17.8
R1702 5
D1703 R1707 S
22
OPEN 10K 244.0
4 6
Q1702
TK10A60W
7
3
(SWITCHING)
R1718 244.0 C1704
22 D
220P
/2KV 2
10
G C1018
1/450V
17.8
R1709 1 11
D1704 R1714 S
22
OPEN 10K 0
12
R1715
22
D1701
1SS400ST
T1701
POWER TRANS
R1701 R1703
18.0 22 2.7K R1055
1
10
Q1703
19.0 /1/2W
2SA1576UBTLQ
10
(SWITCHING) R1704
2
244.0 2.7K
R1053
R1705
10
2.7K 4
/1/2W
6
R1717 R1706
22 2.7K
5
D1702
1SS400ST
R1708
22
R1710
T1703
2.7K
OPEN
19.0
5
Q1704 R1711
2.7K
2SA1576UBTLQ 4 6
(SWITCHING)
R1712
7
2.7K 3
JS1701 JS1702
R1713
2.7K 2
8
C1001
C1703
OPEN
0.051 1 9
/400V
12
IC1602
TLP785F
R1631 (ISOLATOR)
18K
1.1 1.2
0 0.1
HOT COLD
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
R663
3.3
22K
Q651
0.1 R660
KTC3875S
10K
-Y-RTK/P
0 (RESET)
Q653
KTC3875S
-Y-RTK/P
(RESET) 0.1
D655
MM5Z9V1B
0.7 CN651
Q655 3.5
R657
C658
R656 R658 0 KTC3875S
10K
1/50V 3.3
3.9K 47K -Y-RTK/P
0.1
(SWITCHING)
3.5
R673
3.9K 0.1
3.2
0 R659
47K
3.4
D651 3.4
R654
OPEN
OPEN
0.1
Q654 R662 0
10K
R6653 KTC3875S 0.7
0
OPEN -Y-RTK/P
(SWITCHING)
0 0
C663 R661
R652
100P 22K
D652 OPEN
0
FCH20A20
C653 R651 0
OPEN OPEN
0
C664 C654 C655 C656
C665 470 470 470 470
0
OPEN
/25V /25V /25V /25V
0
C653A
1500P/2KV
0
0
C657
D653 C652
R664
470
PTZTE2524B 0.1 0
330 /25V
/1/2W
20.0
20.0
20.0
R665 20.0
R666
2K
18K
20.0
R667 R670
R668
5.1K 33K 20.0
2.7K
20.0
D656 20.0
1SS400ST
20.0
C660 R669
20.0
OPEN 3.3K
0.1
R671
Q652
10K
0.7
KTC3875S
-Y-RTK/P
0 R672
(SWITCHING)
22K
D1022
SB3200BRV
D1021
C1019 C1023
SB3200BRV
1/450V 1/450V
D1023
SB3200BRV
D1020 C1020 C1024
SB3200BRV 1/450V 1/450V
C1027
1
GP001
OPEN
C1026
1
GP002
EARTH PLATE
GP003
EARTH PLATE
D1003
OPEN
D1002
C1002 C1004
GP004
OPEN
OPEN OPEN
EARTH PLATE
D1004
OPEN
GP005
EARTH PLATE
D1001 C1003 C1005
OPEN OPEN OPEN
R692
330
C691
0.01
R691
0.1 0.7 R694 10K
C693
Q692
Q691 5.6K 2.2
0.7 KTC3875S 0.1
KTC3875S
-Y-RTK/P
-Y-RTK/P R693
R695
(SWITCHING) 0
0 22K
(SWITCHING) 47K
E
CONTINUE
POWER SUPPLY 2
BACKLIGHT-ADJ
BACKLIGHT-SW
PROTECT3
TYPE A
TO DIGITAL MAIN
CBA UNIT CN3601
TYPE B
TO RELAY CBA
UNIT CN2051
1 PROTECT3(NU)
2 RESET
3 BACKLIGHT-SW
4 P-ON-H2
5 BACKLIGHT-ADJ
6 AL+3.3V
7 GND
8 GND
9 GND
10 GND
11 GND
12 GND
13 GND
14 GND
15 GND
16 GND
17 GND
18 P-ON+20V
19 P-ON+20V
20 P-ON+20V
21 P-ON+20V
22 P-ON+20V
23 P-ON+20V
24 P-ON+20V
25 P-ON+20V
26 P-ON+20V
27 P-ON+20V
CONTINUE
POWER SUPPLY 2
VLED1
VLED2
VLED3
VLED4
N1
N2
P-ON+20V
F
PL19.29SCP1