Read LG 47LX9500-ZA / 47LX950N-ZA / 47LX9800-ZA / 47LX9900-ZA (CHASSIS:LD03R) Service Manual online
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
C719
2200pF
50V
VLCD_POWER
(+12V)
R723
11K
C729
2200pF
50V
50V
R734
9.1K
R728
10
R729
0
0
OPT
C709
0.1uF
50V
R731
10K
C724
0.22uF
16V
0.22uF
16V
C700
0.1uF
50V
+1.8V_TCON
C716
47pF
50V
R716
10K
DPM_HVDD
007:Z8
R726
11K
R705
1K
1%
R746
4.7
R745
4.7
TCON_POWER_EN
001:AJ20;006:P14
C710
820pF
50V
C712
22uF
22uF
25V
VLCD_POWER
(+12V)
R735
510
R700
5.1K
HVDD
(+8V)
C722
0.22uF
16V
0.22uF
16V
Q701
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
C711
22uF
22uF
25V
C714
22uF
22uF
25V
R737
36K
R742
5.1K
R704
510
C717
2200pF
50V
R719
10
+3.3V_TCON
R738
18K
1%
L702
10uH
3.1A
C732
820pF
50V
820pF
50V
R711
120K
1%
R747
4.7
Q700
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
C706
820pF
50V
C727
2200pF
50V
IC700
MAX15023ETG+T
1
FB1
3
EN2
7
LX1
9
DH1
10
DH2
11
BST2
12
LX2
13
PGND2
14
DL2
15
PGOOD2
16
VCC
17
FB2
18
COMP2
19
RT
20
SGND
21
IN
22
LIM2
23
LIM1
24
COMP1
5
DL1
8
BST1
6
PGND1
4
PGOOD1
2
EN1
C726
1uF
50V
C725
0.22uF
16V
0.22uF
16V
C718
47pF
50V
R715
2.2
R722
27K
R721
10
C723
1uF
50V
DPM
004:AN15;006:D12;006:Q5
VLCD_POWER
(+12V)
R725
16K
C734
0.1uF
50V
0.1uF
50V
R708
510
Q702
SI4804BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
C720
10uF
25V
C704
0.1uF
50V
C721
10uF
25V
R748
2.2
DPM_HVDD
007:O6
R720
0
OPT
C713
2200pF
50V
R724
27K
VLCD_POWER
(+12V)
C740
2.2uF
25V
2.2uF
25V
IC701
MAX15026BETD+
3
PGOOD
2
VCC
4
EN
1
IN
6
COMP
5
LIM
7
FB
8
RT
9
GND
10
DRV
11
DL
12
BST
13
LX
14
DH
R717
10K
L700
10uH
3.1A
R713
2.2
R718
0
0
OPT
C730
22uF
25V
22uF
25V
C702
0.1uF
50V
C715
2200pF
50V
C738
0.1uF
50V
0.1uF
50V
R736
1K
1%
C728
47pF
50V
R703
5.1K
VLCD_POWER
(+12V)
L701
10uH
3.1A
D700
OPT
C708
22uF
16V
22uF
16V
C705
22uF
22uF
16V
C701
22uF
22uF
16V
C735
22uF
16V
22uF
16V
C703
22uF
22uF
16V
C737
22uF
16V
22uF
16V
C733
22uF
16V
22uF
16V
C707
22uF
22uF
16V
R701
22K
C731
1uF
R710
6.8K
1%
R712
10K
1%
R707
6.8K
1%
R706
30K
1%
3D + 240 FRC + TCON BOARD
Power Block (TCON)
7
10
2009. 11. 13
R1
Vout = 0.6*(1+R1/R2)
R2
Vout = 0.6*(1+R1/R2)
R1
R1
R2
R2
Vout = 0.592*(1+R1/R2)
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