Philips 32PFL1507/F8 Service Manual page 35

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.
CN600
F601
AC600
OPEN
4A/125V
AC CORD
2
1
4A 125V
R601
1.2M/1/2W
CN601 SA601
D611A
SURGE
OPEN
4 2
ABSORBER
1
D611B
C600
OPEN
0.47/250V
R611
2.2/5W
L600
LINE FILTER
R602
D611
2.2/5W
OPEN
C601
D601 D602
0.47/250V
1N5406-BU 1N5406-BU
L601
LINE D600 D603
FILTER 1N5406-BU 1N5406-BU
C613
C603 C602 C604
R613 R612
2200P C614
D612 390
OPEN OPEN 68K 68K
OPEN
OPEN /1KV
/200V
/1W /1W
R603
D613
3 220K
FR155-B/P
BC602
R604 BEAD
220K
R600 BC601
220K BEAD
R606A R605A
Q600 OPEN OPEN
TK10A50D
D
165.8 (SWITCHING)
C605 R606 R605
G 0.1 120 120
3.7
S
0.1 D605A
TFZGTR4.3B
D609A
C606 D609
OPEN
1200P
R607A
3.7 D605B
OPEN
OPEN
0.4
R607 D605
0
1.2K OPEN
Q601
C607
2SC2120-Y
820P
SWITCHING
/2KV R610A R610
CONTROL
OPEN 270
14.0
D604 D604A D604B
OPEN TFZGTR27B OPEN C609
2
1500P
0.4
D607
IC202A
D607A
R609A R609
OPEN
OPEN
R608 OPEN 3.9K
D610 D610A
(+3.3V REG.)
0.18
1ZB36BB OPEN
/2W
C608
0.068
1
D606A D606B D606
OPEN OPEN OPEN
8.5 7.4 3.3 1.3 0
1
HOT
A
CAUTION ! :
4A/125V
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
D662 R233
RS1GJTB 8.2/1/2W 21.9
Q222
D661
2SA950-O
RS1GJTB
D640 (SW+15.8V)
JS660
SK2B-TR
OPEN
R235 R234
5.6 5.6
R269
C637 D645 R271
12K /1/2W /1/2W
470/25V 1ZB22BB OPEN
D645A R273
OPEN OPEN
R272
OPEN
R274
C610 Q215
OPEN
1000P/250V OPEN
Q216
OPEN
R275
OPEN
C611
1000P/250V
R650 D649 D650 R642
1 SK16-T/R OPEN 75K
D650A
TFZGTR5.6B
C641 C644
2200P/1KV 1/50V
C633
D650B
OPEN
C612 OPEN
D637
1000P/250V
SB3150BH
Q633
C648A C649A
KTC3875S-Y-RTK/P
D646
1000/35V 1000/35V
SB3150BH (RESET)
31.9
D644
C648 C649
SB3150BH
D648
T600 OPEN OPEN
1ZB30BB
POWER TRANS
D634
SB3150BH
3 15
R251
C631 D648A
R631
22k
1000/35V OPEN
15K
4 14
D642
SK16-T/R
5 13
C638
100/25V
12
7 11
D643
SK16-T/R
10
C639
D660 100/10V
RS1GJTB
8 9
C647
R663
100/50V
39K
R636A R635A
OPEN OPEN
IC601
R636 R635
TLP781F 120 120
(D4-FUNBLL F)
ERROR
R637
VOLTAGE DET R644
10K
18K
23.7 C645
2200P
D631A
22.7 D631 D631B
TFZGTR
Q634
OPEN OPEN
5.6B KTC3875S-Y-RTK/P
22.7
(FEED BACK)
R649A R649
Q631
OPEN 3.9K
KTC3875S-Y-RTK/P
19.3 6.2
(SWITCHING)
5.6
0.1
0
R632
D654A
47K
D654B D654
TFZGTR
OPEN OPEN
5.6B
IC202
PQ200WNA1ZPH
(+3.3V REG.)
R654
0.1
10K
0.6
0 Q635 R655
KTC3875S-Y-RTK/P 47K
2 3 4 5 1 2 3 4 5
(SWITCHING)
8.5 7.4 3.3 1.3 0
C230
R245A R245
100/10V
C223 OPEN OPEN
1
C217
C216
Q207
10/50V
0.1
2SA1576UBTLQ
(SWITCHING)
R228
4.7K 8.6 8.6
*2
R227
C225
R229
47K R226 7.9
0.1
22K R230
330
10K
R243
240
*2
C224 R244
OPEN 2.2K
COLD
POWER SUPPLY CBA
B C
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
15.8
R239
8.2/1W
21.9
21.9 15.8
Q221
C220 C222
2SC2120-Y 470/25V
OPEN
16.0
(SW+15.8V) R236
9.1K
R247
D222A Q214
R237
100K D222 R268A
0
R270 C221 0 KTC3875S-Y-RTK/P
OPEN
1.5K 0.01
(SWITCHING)
2.2
0.7
R246 R240 C219
3.9K 3.9K D221 R268
OPEN R238
0
KIA431-AT/P 39K
2.2K
D202
D202A R266A R267
R266
1SS400 OPEN 47K
47K
R643
47K
2.6
-3.5 R263
270 C228 R264 D210B
Q213
2.2/50V 15K OPEN
0 KTC3875S-Y-RTK/P
R263A
(SW-9.5V)
OPEN
-9.6
37.8 D208 Q212
-8.9
KTC3875S-Y-RTK/P
R255
Q210
D208A R260 (SW+24V)
150
-9.6
37.1 2SA1576 1SS400 47K
UBTLQ
35.2
(SWITCHING) R255A
R261
R276
OPEN
22K
R252 OPEN
D207A
D207
39K
1SS400
Q211
KTC3875S
-Y-RTK/P
0.1 R253
(SWITCHING)
22K
0.7
R254 R258
0
22K 680
D639A
1SS400 R257 R257A
C227
R258A
47K OPEN
22/50V
OPEN
D639
R259
D205A D205B
OPEN
TFZGTR33B OPEN
R262
12K
D206A
R259A
OPEN
OPEN
C231 C634
R657A OPEN 0.1 0.1
R657 15
D657A 1SS400
D655
OPEN D657
24.0 6.4
C632 D655A
Q636
1000/35V TFZGTR3.3B
KTC3199-GR-AT/P
5.6
R645
(+5V REG.)
27K
D655B OPEN
R647
27K
R662 R656 R658 R659
220 220 220 220
R662A R656A R658A R659A
OPEN OPEN OPEN OPEN JS656
D656 D656B
OPEN OPEN
R651
820
R652
18K
D636 D658 D659
OPEN OPEN
D658A
0
R232
10K
0.1
0.7
0 Q208 R231 C226
KTC3875S-Y-RTK/P 47K 3.3/50V
(SWITCHING)
D
10-3
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CONTINUE
POWER 2
PANEL+15.8V
P-ON+3.3V
LCD-6V
LCD+24.5V
R265 R265A
8.2K OPEN
C229
D212A
OPEN
R248 0
56K
R241 D212
6.8K
R249
6.8K
D211
D211A
R242
OPEN
2.7K
CONTINUE
POWER 3
D210 D210A D652A
OPEN TFZGTR5.1B OPEN +24V
D652
TO DIGITAL MAIN
CN632 CBA UNIT CN3701
24.2
0
19 GND
24.8
0
R256 18 GND
WIRE
24.0
17 P-ON+24V
24.0
16 P-ON+24V
0
15 GND
24.4
14 AMP+24V
24.4
C635 13 AMP+24V
0.1
0
12 GND
5.7
11 AL+5V
0
D205 C636
10 GND
OPEN 0.1
0.6
9 OE2
D663A
D663 2.6
D206 1SS400
8 RESET
D641A R664 10K
3.4
0 7 P-ON-H2
3.3
6 P-ON-H1
D641
3.1
5 PROTECT1
D632A
3.1
D632B D632
TFZGTR 4 PROTECT3
OPEN OPEN
5.6B 0.7
3 BACKLIGHT-ADJ
0.9
2 BACKLIGHT-SW
D638 1.6
1 VCOM-PWM
OPEN
D638A
TFZGTR10B
D638B
OPEN
R641 CONTINUE
22K POWER 2
PROTECT3
VCOM-PWM
D656A
TFZGTR5.6B
OE2
P-ON-H1
P-ON-H1-1
CONTINUE
POWER 3
BACKLIGHT-SW
C646
D635 D635A
BACKLIGHT-ADJ
100/10V
OPEN OPEN
PROTECT3
D633B D633
OPEN OPEN
D651 D633A
TFZGTR5.6B
D651A
0
1.6
0.1
0 Q632
KTC3875S-Y-RTK/P R638
22K
(SWITCHING)
UNLESS OTHERWISE SPECIFIED:
DIODES ARE 1SS133.
E F
PL11.10SCM1