Philips 40PFL4609/F8 Service Manual page 51

Power Supply 1 Schematic Diagram
CAUTION !
Fixed voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F602) 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.
4
HOT CIRCUIT. BE CAREFUL.
2.5A 250V
L601
F602
LINE
2.5A/250V
FILTER
AC601
CN601
AC CORD
C604
B R601
SA601
0.22
1.2M
VARISTOR
W /310V
/1/2W
3 C617
OPEN
C618
10/16V
C605 C611
220 220
R614
/200V /200V
560K
R603
560K
R604
560K
Q601
139.0
D TK7A60W
C606
(SWITCHING)
680P G
/2KV
3.4
S
0.1
C607 Q602
2200P 2SC5344SY
2
SWITCHING
3.4
CONTROL
0
D607A
0
TFZVTR27B
D609A R609
CES520
100
R611 D608 D608A
1ZB36BB OPEN
0.22
/2W
1
A
CAUTION ! :
2.5A 250V
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
JS601
OPEN
L602
LINE
FILTER
D602 D603
C614 1N5406BH 1N5406BH
0.22
/310V
D601 D604
1N5406BH 1N5406BH
C624
OPEN
JS602
OPEN
R602 R610
JS605 JS603 JS604
OPEN OPEN
C612
R605 R619
2200P
47K/1W 47K/1W
/1KV
BC601
BEAD
D606 D606A
BC602 OPEN RS1JJTD
BEAD
C613
OPEN
C608 R606 R607
0.015 82 82
R608 D605
1.5K MM5Z6V2B
D621 D610
1SS400ST 1SS400ST
Q621
KTC3875S
-Y-RTK/P
D623 R613
OVER MM5Z30B 270
VOLTAGE
0 R621
PROTECT
560
0
R622
R623 C622 C621 C623
0
0
10K OPEN OPEN 4.7
8.8
C610
100P
0.3
C609 R612
0.039 3.9K
HOT
B C
For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
C603
OPEN
C602
2200P/250V
D655
SB3A0BH
D653
SB3A0BH
C654 C655 C668
470/16V 470/16V 470/16V
D656
OPEN
T601
POWER TRANS
R651 D656A D657
1 GR1B MM5Z11B
6 7
C656 R694
1/50V OPEN
5 8
Q658
9
2SA1201-Y
R690
4 (+3.3V REG.)
1.5
10 13.0
12.4
R673
OPEN
2 11
C650 R670 R671 R672
2200P/1KV 270 270 270
1 12
D650
SB3200BR
D651
SB3200BR
D652
SB3200BR
D659
SB3200BR
C652 C653
470/25V 470/25V
IC601
TLP785F
ERROR
VOLTAGE DET R655 R654
180 180
20.3
R657
3.9K
19.3
C666
R659 R675
0.22
27K 68K
R660
R674
C660 R658 3.9K
0
C619 0.22 2.7K
OPEN
D661
19.3
1SS400ST
2.5
D660
0 R661
SL431A-AT
C620
3.3K
1000P/250V
Q653
KTC3875S-Y-RTK/P
(SWITCHING)
COLD
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
POWER SUPPLY CBA
D654 D654A R663
OPEN OPEN OPEN
3.3 Q650
R652
KTC3875S
33K
-4.0
-Y-RTK/P
(RESET)
0
R656
9.1K
3.3
D664 C663
TFZVTR4.7B 100/10V
12.4 3.3
Q656
KTC3875S
R662
3.8
-Y-RTK/P 3.3K
(SWITCHING)
R680
100
C665 R682
0.1 0
3.8
2.5
D662
0
SL431A-AT R681
10K
C661
OPEN
C657 C658 D658 D658A C659
470/25V 470/25V 1ZB33BB OPEN OPEN
C638
OPEN
C651
C639
470
OPEN
/25V
R667
15K
0.3 R669
10K
0.7
0 R668
47K
E
CONTINUE
POWER 2
AMP+13V
P-ON+21V
BACKLIGHT-ADJ
BACKLIGHT-SW
PROTECT3
TO DIGITAL MAIN
CBA UNIT CN3601
CN501
or CN3602
1 NU
2 PROTECT1(NU)
3.2
3 PROTECT3
3.3
4 RESET
3.3
5 BACKLIGHT-SW
3.2
6 P-ON-H2
1.5
7 BACKLIGHT-ADJ
3.2
8 AL+3.3V
0
9 GND
0
10 GND
0
11 GND
0
12 GND
0
13 GND
0
14 GND
13.0
15 AMP+13V
13.0
16 AMP+13V
13.0
17 AMP+13V
13.0
18 AMP+13V
0
19 GND
20.7
20 P-ON+21V
20.7
21 P-ON+21V
20.7
22 P-ON+21V
20.7
23 P-ON+21V
F
PL14.32SCP1