Philips 40PFL4707/F7 Service Manual page 42

Power Supply Schematic Diagram
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F600) 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.
X15
AC CORD
HOT CIRCUIT. BE CAREFUL.
AC
INLET
4
CN600
1
2
R608
F600
1.2M/1/2W
4A/125V
SA600
SURGE
ABSORBER
4A 125V
C603
0.22/275V
L600
LINE FILTER
SA601
SA602
OPEN
OPEN
C604
0.22/275V
L601
LINE
FILTER
JS600
JS601
OPEN
OPEN
3
D620
OPEN
C606
R651
470 JS605
Q651
330K R650
/200V
2SK3498
47/2W
JS606
(SWITCHING)
R652 OPEN
330K
154.4 5.0
C620
R653
OPEN
4.4
330K
D650A
C652
OPEN
0.1
R623
D652A 15K
D650 R655
OPEN
36BSB-T26 1.5M R624
15K
D652
R654 R625
33BBSB-T26
330K 15K
106.7 Q601
D
TK10A50D
(SWITCHING)
2 G
5.1
S D602A
D602
0
OPEN
1ZB27BB
R601
C601
4.7K
470P
/2KV
R606A R606
R601A
OPEN 47
OPEN
D603
R604A R604
FR103-B/P
OPEN 10
R603 R605 D601 D601A
0.15 0.15 1ZB36BB OPEN
/2W /2W
R614 IC602
R616
820K
2.7K FA5640N-C6-TE3
SWITCHIG
CONTROL
1.9 154.0
1 ZCD VH 8
2.1
R613 C609
2 FB NU 7
4.7K 220P
0.1 16.2
3 IS VCC 6
C611
0 5.0
1000P
4 GND OUT 5
1
R617 C610
OPEN 150P
R618 R618A D606A D606
C612
OPEN 27BAB-T26
OPEN OPEN 1
A
4A 125V
POWER SUPPLY CBA
C608
1000P/250V
C617
470P/250V
C607
1000P/250V
D610 D609
1N5406BH 1N5406BH
R609
2.2/5W
D405
OPEN
D607 D608
R610
1N5406BH 1N5406BH
2.2/5W
D402
SB3200BR
D403
SB3200BR
BC604
D404
BEAD
SB3200BR
T601
POWER TRANS
BC601
C409
BEAD
2200P/1KV
2 15
R611 R612 C602
JS401
100K 100K 2200P
D401
/2W /2W /1KV
SB3200BR
3 14
D604
FR105-B/P
JS402
D605 OPEN
BC602
4 13
FR105-B/P
BEAD
D416
OPEN
6 12
D622 BC605
OPEN JS403
D614 BEAD
OPEN
FR104-B
D623
OPEN 7 11
D615
FR104-B
D407
BC603 SB3150BH
R615
BEAD
22K
8 10
D406
JS604 SB3150BH
R602A R602 C616
C614
OPEN 8.2K
100 OPEN
/50V
R607A R607
OPEN 8.2K
Q602
2SK3498
IC601
(SWITCHING)
TLP781F
16.4 32.2
ERROR
VOLTAGE DET
19.3
2.1 22.6
0 21.8
D616A
OPEN
D616 C615 R622
R622A
20BSB-T26 1000P 21.8
100K
OPEN
D501A D501
2.4
OPEN 5V6BSB-T26
IC401
0
R630 R631 SL431A-AT
OPEN OPEN SHUNT
REG.
Q503
KTC3875S-Y-RTK/P
16.7
R632 (SWITCHING)
OPEN
0
Q631
D630 R634 0
D IC603 R515
OPEN
OPEN
OPEN 47K
OPEN
G
C630
Q630
R633 OPEN
OPEN
S R522
OPEN
OPEN
C613
47/50V R635
OPEN
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.
C405 C406 C407
D410 D410A R420 R421 R422 R423
1000/35V 1000/35V OPEN
1ZB30BB OPEN
1.2K 1.2K 1.2K 1.2K
/2W /2W /2W /2W
C403 C404
D415 D415A R410 R410A R412 R412A
470/35V 470/35V
1ZB30BB OPEN 22K OPEN OPEN OPEN
R510 D502 D503
1 GR1G 5V6BSB-T26
C504
D503A
1/50V
OPEN
BC401
WIRE
C411 C412 D413 D413A R425 R425A
2200/16V 2200/16V 1ZB20BB OPEN 10K OPEN
R401A R403A
OPEN OPEN
Q505
R401 R403
OPEN
120 120
C402
R521 C521
R409
OPEN
OPEN OPEN R524
3.9K
OPEN
R513
R408
R431
47K
39K
39K
R407
R430
R514
C401 R405 5.6K
0
47K
0.1 1K
R406
3.3K
Q504
KTC3875S-Y-RTK/P
(SWITCHING)
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Either Q501 or Q501A is used
for Power Supply CBA.
R415
R506
56K
10
22.6 5.3
Q501A
2SC4481F
6.0 (+5.3V REG.)
R519
10
22.6 3.4
Q501
2SC2120-Y
R504
4.0 C503 D512
(+3.3V REG.)
10K
100/10V 6V2BSB-T26
R501
0
R502
R507 R508 R518
1.5K
220 220 220
R507A R508A R518A C501 R505
OPEN OPEN OPEN 0.1 0
R424
OPEN
4.0
2.1
IC501
0
SL431A-AT R503
10K
SHUNT
REG.
R535 D513
D510A
0 WIRE
R512 OPEN
56K
C510
D510 OPEN R530
WIRE OPEN
R525
22K 3.4
R526
R511 Q506
Q502 22K
20K 1.5 KTC3875S-Y-RTK/P
-0.5
KTC3875S
(SWITCHING)
-Y-RTK/P
(RESET) 0
0
D505 0 R527
22K
D505A
Q507
OPEN
KTC3875S-Y-RTK/P
0
(SWITCHING)
C505
D506 0.6
1200P
WIRE 0
C506
2.2
R553
OPEN
Q508
OPEN
R534 C508
OPEN OPEN
0 R517 D504 R520
0 1ZB220-YBB 10K
0.6
0 R516 C509
47K OPEN
E
TO LCD MODULE
CN401
ASSEMBLY
22.7
1 LED+24V
22.7
2 LED+24V
C417
0.1 22.7
3 LED+24V
D412
22.7
4 LED+24V
D412A 22.7
R414 5 LED+24V
OPEN
6.8K
0
6 GND
0
7 GND
0
8 GND
D508A
0
D512A OPEN
9 GND
OPEN
0
D508 10 GND
OPEN
11 ERROR
JS504
3.3
12 BACKLIGHT-SW
JS505
3.4
13 BACKLIGHT-ADJ
TO DIGITAL MAIN
CBA UNIT CN3601
CN501
or CN3701
0
R532 R531 1 GND
0 OPEN
3.3
2 BACKLIGHT-SW
JS506
3.4
3 BACKLIGHT-ADJ
3.0
4 PROTECT3
JS507
11.0
5 PROTECT1
3.4
6 P-ON-H1
3.4
7 P-ON-H2
3.4
8 RESET
9 OE2(NU)
0
10 GND
3.4/5.3
11 AL+3.3V/AL+5.3V
0
12 GND
23.8
13 AMP+24V
23.8
14 AMP+24V
0
15 GND
11.0
R528
16 P-ON+21V
47K
11.0
17 P-ON+21V
0
18 GND
0
R529
19 GND
22K
0
20 GND
0
21 GND
11.0
22 P-ON+21V
11.0
23 P-ON+21V
C416
0.1
UNLESS OTHERWISE SPECIFIED:
DIODES ARE HSS4148TE-E.
F G
PL12.3SCP