10-17
PIN 9 OF
CN103A
WF8
Q706
Emitter
WF12
WF9
PIN 7 OF
CN103A
Q704
Emitter
WF10
Q705
Emitter
WF11
PIN 11 OF
CN103A
WF7
WF6
PIN 14
OF IC801
WF13
PIN 1 OF
CN1701
WF14
PIN 3 OF
CN1701
WF15
PIN 6 OF
CN1701
WF16
PIN 8 OF
CN1701
WF17
PIN 11 OF
CN1701
Main CBA Bottom View
BL3150F01011-1
For continued protection against risk of fire,
replace only with same type 4 A, 125V fuse.
CAUTION ! :
ATTENTION :
Utiliser un fusible de rechange de m
ê
me type de 4A, 125V.
4A/125V
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.
NOTE:
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
Because a hot chassis ground is present in the power
supply circuit, an isolation transformer must be used.
Also, in order to have the ability to increase the input
slowly,when troubleshooting this type power supply
circuit, a variable isolation transformer is required.
MAIN CBA
Ref No.
Position
Ref No.
Position
IC31
E-4
Q601
B-5
IC531
D-4
Q603
B-5
IC533
D-3
Q633
A-5
IC601
A-5
Q701
D-2
IC671
D-4
Q702
D-2
IC672
D-4
Q703
D-2
IC781
E-2
Q704
E-1
IC801
D-5
Q705
E-1
IC851
D-2
Q706
E-2
IC852
E-3
Q707
E-2
IC1652
C-4
Q708
E-2
Q802
D-5
Q32
E-4
Q803
D-4
Q401
B-2
Q804
E-2
Q403
B-1
Q1651
C-4
Q404
B-1
Q1652
C-3
Q405
B-1
Q1653
C-3
Q406
B-1
Q1654
C-4
Q407
A-1
Q1655
C-4
Q408
C-1
Q1656
C-4
Q409
A-2
Q1657
C-4
Q410
B-1
Q1701
E-1
Q411
B-2
Q412
B-2
CN101A
C-2
Q415
B-3
CN102A
C-2
Q416
B-3
CN103A
D-2
Q421
B-1
CN113
E-2
Q422
B-1
CN402
A-2
Q423
B-1
CN403
A-5
Q424
A-2
CN411
B-2
Q427
B-2
CN801
E-5
Q428
B-2
CN802
A-5
Q501
C-2
CN1701
E-2
Q502
C-2
Q503
C-2
TP402
A-3
Q505
C-3
TP403
B-1
Q509
C-3
TP1801
E-2
Q510
C-2
TP1802
E-2
Q511
C-2
TP1803
E-2
Q512
C-2
TP1804
E-2
Q513
C-3
TP1805
E-2
Q531
C-2
TP1806
E-3
TRANSISTORS
TEST POINTS
TRANSISTORS
CONNECTORS
ICS
Содержание 6620 LDF
Страница 1: ...SERVICE MANUAL 20 LCD TV DVD 6620LDF ...
Страница 18: ...5 4 L3250DC 8 Main CBA 10 Tilt Stand Holder 9 Inverter CBA S 11 S 11 S 11 S 11 S 12 S 12 S 13 S 14 Fig D3 ...
Страница 42: ...10 8 L3250SCF Function Schematic Diagram ...
Страница 43: ...10 9 L3250SCIR IR Sensor Schematic Diagram ...
Страница 47: ...10 13 DVD Main 2 3 Schematic Diagram L3250SCD2 ...
Страница 71: ...6620LDF L3250UA 2005 06 30 ...