LG 22LG3DDH (CHASSIS:LA96E) Service Manual ▷ View 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.
0
R909
OPT
UART_SWB
009:AH36
+5V_ST_PTC
PTC_TX_1
012:C9
2SC3875S(ALY)
Q905
E
B
C
0 . 0 4 7 u F
C904
100
R938
1K
R942
100
R940
PTC_RX_5V
009:AQ26;012:K14
PTC_DEBUG_TX
009:AC30;012:Q8
0 . 1 u F
C907
10K
R917
+5V_ST_PTC
22K
R921
0 . 3 3 u F
C906
100
R932
0
R915
100
R918
100
R934
0 . 1 u F
C902
100
R937
SDC15
D901
A1
C
A2
220pF
C910
22K
R927
+5V_ST_PTC
MC14053BDR2G
IC901
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
+5V_ST_PTC
1K
R929
100
R933
100
R931
SDC15
D900
A1
C
A2
0
R907
0 . 1 u F
C908
0
R935
PTC_DEBUG_RX 0 0 9 : A C 3 0 ; 0 1 2 : J 8
0 . 3 3 u F
C903
UART_SWA
009:AH37
2SC3875S(ALY)
Q906
E
B
C
10K
R941
MC14053BDR2G
IC903
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
2SC3875S(ALY)
Q902
E
B
C
10K
R926
100
R939
0
R914
+5V_ST_PTC
+5V_ST_PTC
22K
R922
PTC_DEBUG_TX
009:AC30;012:D9
2SC3875S(ALY)
Q904
E
B
C
MSTAR_RX
008:AB27
ST3232CDR
IC902
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
T2OUT
8
R2IN
9
R2OUT
10
T2IN
11
T1IN
12
R1OUT
13
R1IN
14
T1OUT
15
GND
16
VCC
PTC_RX_MSTAR_5V 012:D13
0
R910
OPT
R925
0
R913
PTC_TX_MSTAR
008:AQ28
PTC_DEBUG_RX
0 0 9 : A C 3 0 ; 0 1 2 : Z 7
0 . 3 3 u F
C905
PTC_TX
009:AQ27
PTC_TX_1
012:K17
PTC_RX_5V
0 0 9 : A Q 2 6 ; 0 1 2 : J 7
100
R919
100
R936
+5V_ST_PTC
2SC3875S(ALY)
Q903
E
B
C
22K
R928
+5V_ST_PTC
100
R930
1K
R924
10K
R912
220pF
C909
+5V_ST_PTC
1K
R923
2SC3875S(ALY)
Q901
E
B
C
0
R916
OPT
MSTAR_TX
008:AB27
BSS83
Q1200
S
B
D
G
4.7K
R2521
+3.3V_ST
PTC_RX_MSTAR
008:AQ27
4.7K
R2522
GND
+3.3V_ST
PTC_RX_MSTAR_5V
0 1 2 : J 8
+5V_ST_PTC
KCN-DS-1-0088
P900
1
2
3
4
5
6
7
8
9
10
MLB-201209-0120P-N2
L901
MLB-201209-0120P-N2
L900
100
R920
OPT
0
R955
OPT
0
R957
OPT
100
R956
OPT
RX_G6
008:AO31
0
R958
0
R959
OPT
TX_F5
008:AR32
+5V_ST_PTC
4.7K
R1200
GND
BSS83
Q1201
S
B
D
G
4.7K
R1201
+3.3V_ST
+3.3V_ST
UART
1 2 1 4
UART
S e r i a l P o r t
RxD
26/32LG3DDH
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.
USB_DP
008:AQ34
USB_DM
008:AQ34
CB3216PA501E
L1300
180
R2513
MIC2009YM6-TR
IC1304
3
ENABLE
2
GND
4
FAULT/
1
VIN
6
VOUT
5
ILIMIT
4.7K
R2515
10uF
10V
C2248
+5V_EXT
10K
R2518
0 . 1 u F
C2249
+3.3V
USB_CTL
USB_OCD
47
R2514
5.6V
D1305
ADMC5M03200L
5.6V
D1304
ADMC5M03200L
47uF
10V
10V
C2252
47uF
10V
10V
C2251
USB DOWN STREAM
UB01123-4HHS-4F
P1207
1
2
3
4
5
SIGN799
13
14
USB JACK
U S B + 5 V O v e r C u r r e n t P r o t e c t i o n - - > U S B J a c k
USB JACK (DOWN LOAD ONLYU)
26/32LG3DDH
TUNER
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.
0 . 1 u F
50V
50V
C1508
100pF
50V
C1504
OPT
R1504
HP_L
008:Q28
100pF
50V
C1505
0
R1512
10uF
16V
16V
C1511
0
R1509
HP_R_OUT
014:R6
8OHM
L1500
HP_L_OUT
014:R5
0
R1513
0
R1500
100pF
50V
50V
C1515
1K
R1531
2 . 2 u F
16V
16V
C1501
100pF
50V
50V
C1507
0
R1508
HP_L_OUT
014:K9
1K
R1502
OPT
R1510
8OHM
L1501
22
R1516
3K
R1505
9.1K
R1521
HP_MUTE
008:AB20
100pF
50V
50V
C1514
FDV301N
Q1500
G
D
S
9.1K
R1507
OPT
R1503
1K
R1501
HP_DET
0 0 8 : P 2 9
+5V_GENERAL
13K
R1515
HP_R
008:Q28
HP_R_OUT
014:K12
TPA6110A2DGNRG4
IC1500
3
SHUTDOWN
2
GND
4
I N 2 -
1
BYPASS
5
VO2
6
VDD
7
VO1
8
I N 1 -
100uF
16V
C1512
100uF
16V
C1513
1uF
25V
C1500
13K
R1519
0
R1506
1K
R1532
1uF
25V
C1510
FDV301N
Q1501
G
D
S
100pF
50V
C1506
MBW3216-501TF
L1502
OPT
R1520
DJ-S3600LM
JK1501
1
2
3
4
5
4.7K
R1559
4.7K
R1560
DET_PILLOW
008:AB21;009:AA24
0
R1541
47K
R1544
IM02NSL
RL1501
2
6
1
5
3
4
7
8
Pillow_POWER_MANAGE
2SC3875S(ALY)
Q1506
E
B
C
5VD
0 1 4 : V 2 7 ; 0 1 4 : X 6 ; 0 1 4 : A B 9 ; 0 1 4 : A F 7
USP_1
100uF
16V
16V
C1521
1N4148W
100V
D1500
UPS_Power
USP_1
L1504
47K
R1557
OPT
L1505
L1503
IM02NSL
RL1500
2
6
1
5
3
4
7
8
22K
OPT
R1548
P_GND
22K
OPT
R1538
L1508
1/4W
10
5%
R1558
5VD
014:V27;014:AB9;014:AC16;014:AF7
12VD
47K
R1546
2SC3875S(ALY)
Q1503
E
B
C
L1506
12VD
12VDC_1
5VD
0 1 4 : V 2 7 ; 0 1 4 : X 6 ; 0 1 4 : A B 9 ; 0 1 4 : A C 1 6
2 . 2 u F
25V
C1520
2.2K
R1551
10uF
16V
16V
C1517
47K
R1533
5VD
0 1 4 : V 2 7 ; 0 1 4 : X 6 ; 0 1 4 : A C 1 6 ; 0 1 4 : A F 7
5VST
1/4W
10
5%
R1553
47uF
25V
25V
C1519
2 . 2 u F
25V
C1518
22uF
25V
C1523
USP_1
47K
R1552
12VD
200
1%
1/10W
R1555
2SC3875S(ALY)
Q1502
E
B
C
L1507
10uF
16V
16V
C1525
1N4148W
100V
D1501
47K
OPT
R1537
47K
R1545
SEL_PILLOW_1
009:AL36
0
OPT
R1549
SEL_PILLOW_0
009:AL36
22K
R1550
2SC3875S(ALY)
Q1504
E
B
C
3K
R1536
3K
R1540
220uF
25V
C1502
1/10W
470
5%
R1523
P_CH_UP
009:K26
P_GND
UPS_Power
1/10W
470
5%
R1522
12VDC_1
014:N20;014:AC2
1/4W
0
5%
R1525
33
R1535
33
R1539
1/10W
1K
5%
R1518
0
R1511
33
R1542
1/8W
200
1%
R1530
0 . 1 u F
50V
50V
C1503
GND
1/10W
1K
5%
R1517
PC17L1(5V/35V 4P)
IC1502
2
1
3
4
3K
R1543
P_ON_OFF
009:R26
PC17L1(5V/35V 4P)
IC1503
2
1
3
4
1/8W
750
1%
R1524
1/8W
200
1%
R1529
33
R1547
0
R1514
OPT
0 . 0 2 2 u F
50V
50V
C1509
5VD
GND
33
R1534
P_CH_DN
009:K27
PC17L1(5V/35V 4P)
IC1504
2
1
3
4
GND
12VDC_1
014:N18;014:AC2
PC17L1(5V/35V 4P)
IC1501
2
1
3
4
470uF
16V
C1516
OPT
AO4813
Q1505
3
S1
2
G2
4
G1
1
S2
5
D1_1
6
D1_2
7
D2_1
8
D2_2
+12V_C
+12V_C
MLB-201209-0120P-N2
L6001
1W
470
5%
R1526
1W
470
5%
R1527
1W
2 . 2
5%
R1528
OPT
MLB-201209-0120P-N2
L6002
OPT
5VST_1
AT2812A
T1501
3
2
4
1
7
10
8
5VST
+5V_GENERAL
1/4W
0
5%
R9127
470
1%
1/8W
R1556
0 . 2 2 u F
25V
25V
C2708
PILLOW_OUT
DA-8580
EAP38319001
EAP38319001
L2704
2S
1S
1F
2F
0 . 1 u F
C2704
10K
R2701
4.7K
R2713
+5V_GENERAL
10uF
35V
35V
C2711
2SC3052
Q2701
E
B
C
10K
R2715
L2700
1uF
16V
16V
C2701
0 . 1 u F
50V
C2707
1/4W
0
5%
OPT
R2706
0 . 1 u F
50V
C2706
10K
R2714
OPT
L2701
PILLOW_MUTE
009:AE29
TPA3124D2PWPR
IC2700
3
PVCCL_2
2
SD
4
MUTE
1
PVCCL_1
6
RIN
5
LIN
7
BYPASS
8
AGND_1
9
AGND_2
10
PVCCR_1
11
VCLAMP
12
PVCCR_2
13
PGNDR_1
14
PGNDR_2
15
ROUT
16
BSR
17
GAIN1
18
GAIN0
19
AVCC_1
20
AVCC_2
21
BSL
22
LOUT
23
PGNDL_1
24
PGNDL_2
CB3216UA121
L2703
9.1K
OPT
R2707
2SC3052
Q2700
E
B
C
22uF
35V
35V
C2703
10K
R2711
4.7K
R2700
100uF
16V
C2716
0 . 1 u F
C2705
CB3216UA121
L2702
10K
R2710
10K
R2717
1/4W
0
R2703
1/4W
0
5%
R2709
1uF
16V
16V
C2700
2 . 2 u F
50V
50V
C2715
100uF
16V
16V
C2717
0 . 2 2 u F
25V
25V
C2709
0 . 1 u F
50V
50V
C2710
4.7K
R2702
4.7K
R2712
10K
R2705
2 . 2 u F
50V
50V
C2713
10uF
35V
35V
C2702
2 . 2 u F
50V
50V
C2712
2 . 2 u F
50V
50V
C2714
10K
R2708
PILLOW_SPK
008:U29
0
OPT
R2704
12VD
+12V
PILLOW_OUT
470uF
16V
C4007
PILLOW_OUT
10K
R9128
OPT
5VST
10K
R9129
OPT
5VST
1/4W
0
5%
R9130
OPT
JK1500
CH_UP
3
2
NC
1
ON/OFF
6
CH_DN
5
AUDIO
4
COM
JSS2201S090
SW1500
3
2
1
4
5
6
7
200
R2716
HOSPITAL
1 4 1 4
26/32LG3DDH
MUTE
NORMAL
D r a w i n g w i t h L i n e p a t t e r n
D r a w i n g w i t h L i n e p a t t e r n
TUNER
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