Philips 55PFL6900/F7 Service Manual page 167

Power Supply CBA Top View [TYPE E]
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.
A
GP001
J1613
C1602
J1609
VREF
C643
2.5A 250V
B
COLD
J1108
ADIM
PWM2
J1109
BL-SW
J1110
J1111 GND
AMP+13
J1112
GP003
J1704
PFC GND
J1703
PFC GND
J1604 VCC+15V
C1623
J1607 PFC VOUT
BC1603
GDB
C1614
J1606
PFC VIN J1605
PFC VIN
C1612
D601
D602
C1622
C1613
UNDER SIDE
J1612
GDA
CAUTION ! : For continued protection against risk of fire,
replace only with same type 2.5A, 250V fuse.
ATTENTION : Utiliser un fusible de rechange de même type de 2.5A, 250V.
C D
CN1101
TOP SIDE
BA5GRJF0102 2
J600 P-ON+21V
D651
D650
D619 D621
C606
D620
D613
D605
J602
IC601 Out
J601
Q601 Source
J612
PFC GND
C602
L601A
CAUTION -
RISK OF FIRE -
REPLACE FUSE AS MARKED
L602A
BC601
T 2.5A L/250V
10-65
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.
GP002
J1113
ILED4
J510
AMP+13V
P-ON+21V
J511
J512
ALL+3.3V
J513
J514
P-ON H2
P-ON H2
J609
Drive
VCC+15V
J610
F602
JB603
BA5GRJF01022