Philips 32PFL3505D/F7 Service Manual page 75

Power Supply CBA & Jack CBA Bottom View
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.
Power Supply CBA
Q201
IC201
1
4
R220
8
R204
5 JS203
R221
JS633
Q603 D608 Q602 R619
D
R621
R623 R620
R626 D606
D607
G S
R612
C606
D616
R611 R609
R610
D615
C605
D604
L602
D601
G F F F
4A/125V
D208 D420
D203
R240
Q208
JS631
Q631
R649
R645
R650
C646
D653
4
IC601 1
C631
D639 C637
D622
3 2
R618
D635
8
5 BC602
R617
1 4
D632
BC603
BC601
C633
J353
GND
Q601
LOW-VOL PROTECT
D655
6.7V
6.7V
D644
C644
C639
R678
P-ON 3.3V
GND J367
Q637
6.7V
J368 J354
GND
GND
Q643
J176
R692
GND
R693
J150
GND
R694
C823
D409
J147
GND
AMP+12V J136
21 1 J127
GND J128
GND
GND J123
C602 GND J114
HOT HOT GND J112
22
IC801 42
C694
CN801
J322
GND
L804 L803
E E E D D D
CAUTION ! : For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
R405 D405 D406
LCD 24V J298
GND J289
D667
J292
LCD -6V
J372
R243
Q211
J373 C501 J239
GND
+36V
J374 J241
PROTECT1
INV+13V J378 D416
D401 Q501
PROTECT2 J375
J376
D201
LCD+16V Q402
R254
J379
C222
GND J359 D211 J384
GND
LOW-VOL PROTECT J381
ALL+6.0V
J369
GND J386
GND J387
Q209
J383
LCD+16V
J377
LCD+16V
R253
J319
J267
+15Vfor13VLCD
+15Vfor13VLCD
J339
+15Vfor13VLCD
R502
J263
AMP+12V J290
-7V
+6.7V J365 R661
D412
+6.7V J351
GND J388
GND J278 JK731
C645
3.5Vfor1.8V J246
D648
J242
JK732
J237
J399 COMP-Y
P-ON-H1
J235
J360
COMP-Pb
J212
A-MUTE J254 J233
COMP-Pr
C733
J238
J229
GND J227 A-OUT-MUTE
Q871
Q874
GND J223
R733
J216
COMP-L
J218
J213
A-OUT-L
GND
AMP 13V J215
8
LCD 16V J211
PROTECT1 J204 4 1
J202
C880
J194
J191
AOUT-L
J189 9
GND J186 JK872
8 A-OUT-R
5
AOUT-R J184
J174
J341
D410
P-ON-H2
R689
JK742
J168
R688
P-ON 9V
J166
JK721
TUNER 5V
J153
ALL3.3V
R725
P-ON 5V J160
R786
TUNER 5V J159
R843
JK841
GND J157
C724
JK722
GND J155
C844
D421
R821
D806
D414
J101
BC804 CN802
GND
BC805
C C C
10-21
Because a hot chassis ground is present in the power supply
circuit, an isolation transformer must be used when repairing.
Also, in order to have the ability to increase the input slowly,
when troubleshooting this type of power supply circuit,
a variable isolation transformer is required.
Jack CBA
9 1
CL701B
JK753
R696
4 4 4
R697
R667
Q635
R664
J352
CL701A
9
1
GND J228
R763
3 3 3
GND J209
J222
S-Y
A-MUTE J217
C648
SEL-L J190
D664
ALL+3.3V J347
IC771
1
ALL+3.3V J348
C771
SEL-R J185
J182
GND
INPUT1 J178
J346
INPUT0 J175
16
GND
GND J203
J173
GND
SPDIF J167
BC301
GND J162
JS303
C306
J158
JS302 JS301 R311
J342
R306 R309 R304
C304
TUNER
S A
TU301
D676
CN101
5 1
B B B A A A
WF1 WF1
PIN 4 OF PIN 4 OF
CN302 CN302
WF3 WF3
PIN 6 OF PIN 6 OF
CN302 CN302
WF2
PIN 8 OF
CN302
WF7
PIN 13 OF
CN302
WF4
PIN 15 OF
CN302
WF5
PIN 17 OF
CN302
WF6
PIN 19 OF
CN302
BA01F2F01025