Philips 32HFL5763D/F7 Service Manual page 75

Inverter CBA, Function CBA & IR Sensor CBA Top View (sub Inverter CBA)
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.
Function CBA
SW107B SW105B
SW106B SW155
VOL
UP VOL
4
DOWN
PATTERN
MENU
R115
R113 R112
BA17F4F0103 Z 2 B
R114
SW107A SW106A SW105A
SW104A
C1114
3
T1102
J1026
GND+GNDP
J1028
GND+GNDP
2
J1067
VS4
GND
J1077
1
J1016
GND
A
Inverter CBA
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
C7A3/A3
SW154
SW104B SW103B SW101B
CH
CH
DOWN
UP
R109
R152
R111 R108
R153
J101
SW151
SW103A SW153 R154 SW152 SW101A
CN1102
C1112
C7A3 A3
C1701
D1707
J1030 LDR1
HDR1
J1031
J1043
J1046
J1049
J1050
J1053
J1056
J1091
REG5.5V
J1059
J1063 PROT
BTS1
D1201
J1070 ENA J1109
GND
J1072
DC12V
R1305
JS1200
PROT
J1102
BL-ADJ
D1203
J1120
GND
B
*
When you conduct on a component level repair for the Inverter CBA for any models within this service manual,
make sure to refer the right Block Diagrams, Schematic Diagrams/CBA and Parts List.
For the main CBA, the last digit of the board number, which is engraved on every board, should be a number(e.g. BA17F4F0103 2).
For the sub CBA, the last digit of the board number, which is engraved on every board, should be an alphabet(e.g. BA17F4F0103 Z).
IR Sensor CBA Not Used
C7A3 A3
D101
RS101
STB BY
C101
BA17F4F0103 Z 2 D BA17F4F0103 Z
CN1101
C1110 C1108
*
BA17F4F0103 Z
T1101
C1700
D1704
D1707B
T1950
IS3
C1993
PROT3
PROT2
IS2
IS1
C1994
PROT1
D1991
J1085 +24V
GND
J1084
GND
J1090 +24V
J1088
D1971
D1973
J1098
PROTECT3
2 14 J1101
CN1001
15 C1983
1
J1108
J1107 BL-SW
C D
11-35
/ / /
GREEN RED ORANGE
POWER DVD
RS102
D106
D104
D105
STD BY
C113
C7A3 A3
2 C
C1106
2 A
T1100
COLD
C1906
J1027
HOT
GND
BC1931
BC1930
Q1930
R1937
D1933
D1931B
D1931
Q1932
C1905
J1089
IC1930
Q1931
CN1900
CN1901
IC1931
E
TOOL NO.
1 2 3 4 5 6 7 8 9 10
CN1100
C1104
D1961
J1051
GND
J1055
C1910
F
BA17F4F0103Z