Read LG 22LG3DDH (CHASSIS:LA96E) 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.
+5V_EXT
+5V_GENERAL
1uF
10V
10V
C769
CB3216PA501E
L736
0 . 1 u F
16V
16V
C766
10uF
10V
C765
NR8040T3R6N
3.6uH
L726
22uF
C733
OPT
0 . 1 u F
16V
16V
C710
5V_ST
0.1uF
16V
C746
9.1K
1%
1%
R713
10K
R718
1/8W
75K
1%
R722
22uF
16V
C714
10
R724
10K
R726
1uF
16V
C788
1/10W
10K
OPT
R731
22uF
C786
MP2212DN
IC705
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
CB3216PA501E
L715
NR8040T3R6N
3.6uH
L710
10K
R727
+3.3V_AVDD_MPLL
22uF
16V
C750
1/10W
18K
1%
R769
SC4215ISTRT
IC701
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
+5V
10uF
6.3V
C708
0 . 1 u F
16V
16V
C760
0
R750
BLM18PG121SN1D
L720
0 . 1 u F
C793
4 . 7 u F
25V
C743
CB3216PA501E
L708
0 . 1 u F
16V
16V
C717
CB3216PA501E
L729
0 . 1 u F
16V
16V
C705
5V_ST
+3.3V
47K
R739
+5V
10K
R728
OPT
22uF
25V
25V
C755
POWER_ON/OFF1
0 0 8 : A R 3 1 ; 0 0 4 : S 1 4
POWER_EN
008:AR30;005:AA6
+5V_GENERAL
+3.3V
10K
OPT
OPT
R747
1/10W
10K
R738
4 . 7 u F
6.3V
OPT
C762
0 . 1 u F
C749
2SC3052
Q704
E
B
C
MP2212DN
IC704
3
IN
2
GND
4
BS
1
FB
5
VCC
6
SW_1
7
SW_2
8
EN/SYNC
+12V
+3.3V_ST
CB3216PA501E
L711
100
OPT
R756
10uF
10V
10V
C704
1N4148W_DIODES
100V
D703 OPT
5V_ST
120K
R725
OPT
1N4148W_DIODES
100V
D700
OPT
10K
R733
OPT
BLM18PG121SN1D
L717
0 . 1 u F
16V
16V
C715
22uF
C787
OPT
0 . 1 u F
16V
16V
C780
AP1117E33G-13
IC702
2
OUT
3
IN
1
ADJ/GND
10K
R729
1uF
25V
25V
C748
0 . 1 u F
16V OPT
C790
+1.26V_VDDC
22uF
16V
C791
PANEL_POWER
2SC3052
OPT
Q707
E
B
C
+5V_GENERAL
10uF
C742
OPT
22K
R735
CB3216PA501E
L714
1/10W
10
1%
R734
0 . 1 u F
16V
16V
C758
2SC3052
Q705
E
B
C
12K
1%
R711
1/10W
56K
1%
R770
10uF
10V
C757
BLM18PG121SN1D
L702
22uF
16V
C732
47K
R740
22uF
16V
C792
+3.3V_FE
22K
R732
10uF
10V
C712
+3.3V
BLM18PG121SN1D
L703
22uF
16V
C752
+5V_ST
2SC3052
Q703
E
B
C
PANEL_CTL
008:AR32
4 . 7 u F
6.3V
OPT
C761
CB3216PA501E
L716
1/10W
22K
1%
R723
BLM18PG121SN1D
L727
1uF
10V
C737
0 . 1 u F
16V
16V
C713
+1.8V_DDR
+3.3V_ST
+3.3V_ST
10uF
6.3V
C751
10uF
C756
POWER_ON_DELAY
008:V17
0
R745
0
R746
1/8W
24K
R736
2 . 2 u F
25V
C405
10K
R413
100uF
16V
16V
C406
2SC3875S(ALY)
Q403
E
B
C
220uF
16V
C407
1K
OPT
R412
22K
R414
MSTAR_POWER_ON
0 0 4 : S 1 4 ; 0 0 9 : Y 2 8
+5V_ST
560pF
50V
50V
C411
100K
5%
R421
1uF
10V
10V
C412
82K
R422
R422
3.3K
R710
CB3216PA501E
L728
74LVC1G32GW
IC706
OPT
3
GND
2
A
4
Y
1
B
5
VCC
OR_RELAY_ON
004:A27
0
R2542
OPT
RL_ON
008:AR33
RELAY_PTC
009:AF28
0
R2540
OPT
0
R2541
OPT
0 . 1 u F
16V
16V
C2253
+5V_ST_PTC
0
R2550
220uF
16V
C2254
0 . 1 u F
50V
50V
C741
0 . 1 u F
50V
C789
0
R737
0
R744
AO4813
Q706
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
AO4813
Q404
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
47uF
25V
C1407
0
OPT
R1408
0 . 1 u F
16V
OPT
C1409
MLB-201209-0120P-N2
L1408
A_DIM
008:AF11
JP604
120-ohm
L1400
68uF
35V
C1424
100uF
16V
C1403
68uF
35V
C1422
0 . 1 u F
50V
C1404
JP600
22uF
16V
C1401
22uF
16V
C1402
JP602
1uF
50V
50V
C1423
0
OPT
R1418
4.7K
R1421
JP603
+12V
4.7K
R1410
0 . 1 u F
50V
OPT
C1408
L1406
OPT
ERROR_OUT
008:AB20
MLB-201209-0120P-N2
L1401
L1405
L1404
OPT
+3.5V_ST
1uF
25V
25V
OPT
C1418
JP601
0
OPT
R1409
PWM_DIM
008:AF11;007:N24
100uF
16V
C1405
22uF
16V
C1400
4.7K
R1405
OPT
OPC_OUT
007:N24
007:N24
0
R1419
0 . 1 u F
50V
50V
C1419
BLM18PG121SN1D
L1407
OPT
1uF
25V
25V
C1420
RT1P141C-T112
Q1409
1
2
3
0R1400
15pF
50V
C1410
10K
R1401
4.7K
R1403
+5V_ST_PTC
OR_RELAY_ON
004:AA27
0
OPT
R1402
2SC3875S(ALY)
Q1408
E
B
C
OPT
R1406
33K
OPT
R1407
BG2012B121F
L1402
100
R1414
10K
OPT
OPT
R1425
3.3K
R1417
INV_CTL
008:AR32
2SC3052
Q1412
E
B
C
2SC3875S(ALY)
OPT
Q1413
E
B
C
INV_ON_DEBUG
10K
OPT
R1423
10K
R1420
6.8K
OPT
R1415
10K
R1422
0
R1424
1K
R1308
0
R2603
+24V_AUDIO
FM20020-24
P1408
19
12V
14
GND
9
3.5V
4
24V
18
INV ON
13
GND
8
GND
3
24V
17
12V
12
3.5V
7
GND
2
24V
16
GND/V-sync
11
3.5V
6
GND
1
PWR ON
20
A.DIM
15
GND
10
3.5V
5
GND
21
12V
22
P.DIM1
23
GND/P.DIM2
24
Err OUT
25
5.1K
R730
15K
R415
10K
R4003
MSTAR_POWER_ON
0 0 4 : L 5 ; 0 0 9 : Y 2 8
1K
OPT
R4002
220uF
16V
C4001
AO4813
Q4001
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
2SC3875S(ALY)
Q4000
E
B
C
POWER_ON/OFF1
008:AR31;004:AB25
0 OPT
R4000
0
R4001
0
R4005
10K
R4004
10uF
16V
OPT
C4000
THERMAL
SC632ULTRT
IC3000
3
C1-
2
C1+
4
IN
1
GND
5
EN
6
OUT
7
C2+
8
C2-
9
[EP]GND
100K
1%
R3016
15K
1%
R3018
47uF
10V
10V
C3008
Si4800BDY
Q3000
3
S3
2
S2
4
G
1
S1
5
D5
6
D6
7
D7
8
D8
2 . 2 u F
10V
10V
C3005
47uF
10V
10V
C3009
2 . 2 u F
10V
C3000
0 . 1 u F
C3006
22uF
25V
C3020
BD9306AFVM
IC3003
3
ENB
2
CT
4
GD
1
RT
5
VCC
6
GND
7
COMP
8
FB
1K
R3002
MBRA340T3G
40V
D3000
47K
R3005
20K
R3012
+3.5V_ST
22uH
L3002
100pF
50V
C3012
0
R3006
100pF
50V
50V
C3019
1K
R3019
10uF
25V
25V
C3007
30K
1%
R3017
12V_DCDC
DCDC_EN
009:Y26
+5V_ST_PTC
4.7K
1%
R3003
3.3V
0 . 1 u F
16V
C3001
MLB-201209-0120P-N2
L3000
22uF
16V
16V
C3017
0.1uF
C3015
+12V
47K
R3014
27K
1%
R3007
10K
1%
R3000
AOZ1073AIL
IC3001
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
22uF
16V
16V
C3003
1/10W
11K
5%
R3009
10uF
10V
C3013
3.6uH
L3003
1000pF
50V
50V
C3010
3.3V
3.3V
10uF
10V
C3014
47K
R3015
AOZ1073AIL
IC3002
3
AGND
2
VIN
4
FB
1
PGND
5
COMP
6
EN
7
LX_1
8
LX_2
10K
1%
R3001
22uF
16V
16V
C3018
3.6uH
L3004
0 . 1 u F
16V
C3002
0.1uF
C3016
MLB-201209-0120P-N2
L3001
1000pF
50V
50V
C3011
22uF
16V
16V
C3004
+12V
1/10W
11K
5%
R3010
+12V
+12V
1/10W
5.1K
5%
R3004
47K
1%
R3008
5V_ST
5V_ST
5V_ST
1/10W
200
5%
R6017
+5V_ST_PTC
10K
OPT
R3021
+3.5V_ST
10K
OPT
R3020
+5V_ST_PTC
22K
OPT
R3022
10K
R3011
10K
R3013
+3.5V_ST
4.7K
R1404
+3.5V_ST
+3.3V
2 . 2 u F
10V
C4002
THERMAL
SC632ULTRT
IC3004
3
C1-
2
C1+
4
IN
1
GND
5
EN
6
OUT
7
C2+
8
C2-
9
[EP]GND
2 . 2 u F
10V
10V
C4003
+3.5V_ST
47uF
10V
10V
C4006
10uF
25V
25V
C4004
47uF
10V
10V
C4005
5VST_1
SIGN150
Power
4 1 4
3A, DCR=0.025 ohm
C IN
Placed on SMD-TOP
C OUT
Placed on SMD-TOP
R 1 / R 2 : 2 7 K / 2 0 K = > V o u t = 1 . 8 8
C l o s e t o I C
R1
4.9A 0.0150OHM 34MHZ
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
Placed on SMD-TOP
V o u t = 0 . 8 * ( 1 + R 1 / R 2 )
MAX 3A
R 1 / R 2 : 1 2 K / 9 . 1 K = > V o u t = 1 . 8 5
465 mA @85% efficiency
FROM LIPS & POWER B/D
C l o s e t o I C
$ 0 . 2 4
C l o s e t o I C
1600 mA
R2
R1
R2
R 1 / R 2 : 1 5 K / 1 2 K = > V o u t = 1 . 8 0
$ 0 . 0 7
Placed on SMD-TOP
MSTAR CORE ON
26/32LG3DDH
3 . 5 V T O 5 V / 1 2 V
12V TO 5V / 3.3V MSTAR CORE
5V/5V_G/PANEL/1.26/3305
12V TO 3.3V / DDR
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