Philips 40PFL4707/F7 Service Manual page 62

Power Supply CBA Bottom View
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.
R415
D405
R414
D508A
D404
D412A
J602
PROTECT3
D410A
D402
C412
D407
R425
R425A
D406
D413A
D415A
J634
GND
R431
J611
R531
J610
JS507
D505
P-ON+12/21V
JS506
C416 D506
BL-ADJ.
J624
J630
P-ON-H1
R532
J604
PW-EN
ALL+3.4/5.3V
J605
J606
AMP+24V
C503
R533
C508
R534
Q508
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CAUTION ! :
4A 125V
ATTENTION : Utiliser un fusible de rechange de même type de 4A, 125V.
D403
JS401
R412A
R410A
D502
R510
C617
R409
R408
D503
C401
R407
R410 D503A
R405
R430
R406
R412
C505
GND
R511
IC401
D505A D501
R525
Q502
R403
D501A
R535
C616
C510
R529
R401A
C402
R527
R401
C506
R513
R514
R528 Q507
Q503
R526
Q506
IC603
R517
R521
R512
Q504 R515
J633
R530
J631
R516
C521
D510 J632
D510A
D504
R522
R508A
R520 R507
R501 R507A
J612
IC501
R508
R519
R506
R518
R502
R504
R503
D512A
C501
R518A
R505
For continued protection against risk of fire,
replace only with same type 4A, 125V fuse.
HOT
BC601
R611
BC604
R612
D604
R603
D601A
C601
D601
R605
Q601
R613
R615
BC603
GNDH J615
C609
IC602
R601A
J618
C611 R625
C612
R601
C610
R624
J614
R616
R623
R618A R604A
R617
J609
R606A
R614
D603 R604
R606
R607A
D606A R602A
J616
R607 R602
R631
Q602
C615 R622A
D616A
JS604
Q631
Q630 R633
D616 D630
C630 J626
J627
R634
J628
D602A
10-23
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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
CN401
C417
COLD
HOT
D610
D607
GNDH J622
GNDH J623
D608
D620
R609
R610
C620
JS606
R651
R653
R654
R630
R652
R632
D650A
D652A
R655
C652
Q651
CN600
HOT
COLD
JS600
JS601
C604
C603
SA600
R608
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