LG 22LG3DDH (CHASSIS:LA96E) Service Manual ▷ View online
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300
200
510
830
500
120
122
123
540
530
560
820
400
401
EXPLODED VIEW
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
parts are identified by in the Schematic Diagram and EXPLODED VIEW.
It is essential that these special safety parts should be replaced with the same components as
recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards.
Do not modify the original design without permission of manufacturer.
IMPORTANT SAFETY NOTICE
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.
DSUB_B
008:D28
0
R1305
COMP1_L_IN
008:R33
DSUB_G
008:D29
18pF
50V
C1222
470K
R1247
0
OPT
R1268
4.7K
R1249
PC_L_IN
008:R31
470K
R1245
COMP1_R_IN
008:R33
12K
R1263
10K
R1270
OPT
75
R1238
BG2012B080TF
L1208
100pF
C1227
75
R1243
EEPROM_WP
008:AR22;002:T21
12K
R1264
10K
R1251
0
R1232
12K
R1255
0 . 1 u F
16V
C1228
75
R1242
10K
R1252
12K
R1303
SIDEAV_R_IN
008:R33
100pF
50V
C1240
75
R1235
100pF
50V
C1224
SIDEAV_CVBS_IN
008:D26
ISP_TXD
008:AB27;008:AR31
SIDEAV_L_IN
008:R33
0
R1233
100
R1269
10K
R1259
470K
R1298
COMP1_PB
008:D31
10K
R1301
ENKMC2838-T112
D1223
A1
C
A2
75
R1236
SIDEAV_SW
009:AA29
BG2012B080TF
L1207
10K
R1262
BG2012B080TF
L1206
ISP_RXD
008:AB27
1000pF
50V
50V
C1221
470K
R1246
10K
R1258
22
R1257
12K
R1256
470K
R1244
10K
R1300
DSUB_VSYNC
008:D29
100pF
C1219
PC_R_IN
008:R32
1000pF
50V
50V
C1220
100pF
50V
C1225
COMP1_Y
008:D31
22
R1265
75
R1234
4.7K
R1253
0
R1307
P E J 0 2 4 - 0 1
JK1205
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
COMP1_PR
008:D31
18pF
50V
C1223
100pF
50V
C1241
DSUB_R
008:D29
1K
R1254
DSUB_HSYNC
008:D29
12K
R1304
470K
R1297
75
R1241
100pF
50V
C1251
12K
R1207
12K
R1210
AV_R_IN
008:R32
AV_L_IN
008:R32
100pF
50V
C1250
470K
R1208
470K
R1206
10K
R1205
10K
R1211
AV_CVBS_IN
008:D26
47pF
50V
50V
C1252
75
1%
R1215
BG2012B080TF
L1218
BG2012B080TF
L1217
+3.3V
+5V_GENERAL
10K
R1248
KCN-DS-1-0089
JK1204
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
AT24C02BN-10SU-1.8
IC1200
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
5.6V
D1222
ADMC5M03200L
OPT
5.6V
D1212
ADMC5M03200L
OPT
5.6V
D1221
ADMC5M03200L
ADMC5M03200L
5.6V
D1235
ADMC5M03200L
OPT
5.6V
D1234
ADMC5M03200L
OPT
5.6V
D1214
ADMC5M03200L
ADMC5M03200L
OPT
5.6V
D1211
ADMC5M03200L
OPT
5.6V
D1243
ADMC5M03200L
OPT
5.6V
OPT
OPT
D1224
ADMC5M03200L
5.6V
D1242
ADMC5M03200L
OPT
5.6V
OPT
D1225
ADMC5M03200L
ADMC5M03200L
5.6V
D1213
ADMC5M03200L
OPT
30V
D1216
ADUC30S03010L
30V
D1217
ADUC30S03010L
30V
D1208
ADUC30S03010L
OPT
30V
D1209
ADUC30S03010L
OPT
30V
D1218
ADUC30S03010L
30V
D1215
ADUC30S03010L
ADUC30S03010L
OPT
30V
D1207
30V
D1245
ADUC30S03010L
OPT
30V
D1219
ADUC30S03010L
30V
D1210
ADUC30S03010L
OPT
+5V_ST_PTC
0 . 1 u F
OPT
C1217
0 . 1 u F
OPT
C1218
0 . 1 u F
OPT
C1216
P P J 2 1 8 - 0 1
JK1202
5C
[RD]CONTACT
2C
[RD]U_CAN
4C
[RD]O_SPRING
2B
[WH]U_CAN
3B
[WH]C_LUG
2A
[YL]U_CAN
5A
[YL]CONTACT
4A
[YL]O_SPRING
P P J 2 0 9 - 0 2
JK1207
4A
[GN]CONTACT
2A
[GN]1P_CAN
3A
[GN]O_SPRING
2B
[BL]1P_CAN
5B
[BL]C_LUG_L
2C
[RD]1P_CAN1
5C
[RD]C_LUG_L
2D
[WH]1P_CAN
5D
[WH]C_LUG_L
2E
[RD]1P_CAN2
4E
[RD]CONTACT
3E
[RD]O_SPRING
P P J 1 4 8 - 0 7
JK1206
2
[YL]O-SPRING
1
[YL]GND
3 [YL]CONTACT
4 [WH]GND
5
[WH]C-LUG-L
6
[RD]GND
7
[RD]O-SPRING
8 [RD]CONTACT
SIGN25
1
IN/OUT
14
SIDE_AV
R,G,B PC&DDC
PC AUDIO
REAR AV JACK
COMP JACK
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.
GND
CK+_HDMI1
008:D39
0
R509
DDC_SDA_1
0 0 8 : D 3 8 ; 0 0 2 : S 2 0
D1-_HDMI1
008:D38
0
R510
HPD1
008:D37
0 . 1 u F
16V
16V
C501
CK-_HDMI1
008:D39
D2+_HDMI1
008:D38
5V_HDMI_1
0
R511
D1+_HDMI1
008:D38
D0-_HDMI1
008:D39
DDC_SCL_1
0 0 8 : D 3 7 ; 0 0 2 : S 2 0
D2-_HDMI1
008:D38
J P 5 0 3
D0+_HDMI1
008:D39
J P 5 0 2
0
R576
0
R572
0
R569
0
R573
0
R570
0
R571
0
R574
0
R575
8pF
50V
50V
OPT
C515
8pF
50V
50V
OPT
C512
4.7K
R536
DDC_SDA_1
0 0 8 : D 3 8 ; 0 0 2 : I 2 4
CAT24C02WI-GT3
IC500
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_SCL_1
0 0 8 : D 3 7 ; 0 0 2 : I 2 3
5V_HDMI_1
4.7K
R539
+5V_GENERAL
100
R545
10K
OPT
OPT
R542
22
R530
EEPROM_WP
008:AR22;001:AK23
ENKMC2838-T112
D501
A1
C
A2
22
R531
0 . 1 u F
50V
50V
C509
AVRL161A1R1NT
VR500
OPT
+3.3V_ST
47K
OPT
R556
1K
R552
JP500
820
R501
2SC3052
Q504
E
B
C
10K
R513
QJ41193-CFEE1-7F
JK500
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
HDMI
HDMI1
2 1 4
EDID
HDMI1
26/32LG3DDH
HDMI
+24V_AMP
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.
MLB-201209-0120P-N2
L603
100V
OPT
D604
100
R608
AMP_RST
008:AB21
100
R606
0 . 4 7 u F
50V
C633
5 . 6
R616
1000pF
50V
C629
0 . 1 u F
50V
50V
C620
4.7K
R620
1000pF
50V
C630
0 . 0 1 u F
50V
C639
1uF
16V
C622
AUDIO_MASTER_CLK
008:V26
1000pF
50V
C607
3.3K
R602
MS_SCK
008:V26
100V
OPT
D602
0 . 4 7 u F
50V
C634
0 . 1 u F
C608
0
R600
4.7K
R617
22000pF
50V
C614
33K
OPT
R609
+3.3V
3 . 3
R622
1000pF
50V
C632
1000pF
50V
C606
+1.8V_AMP
10uF
10V
C610
5 . 6
R615
SDA_SUB/AMP
0 0 8 : A I 4 ; 0 1 0 : B 8
2SC3052
Q600
E
B
C
33pF
50V
50V
OPT
C616
100pF
50V
C604
0 . 1 u F
50V
C636
0 . 1 u F
50V
C637
5 . 6
R613
MS_LRCK
008:V26
SCL_SUB/AMP
0 0 8 : A I 4 ; 0 1 0 : B 1 0
DA-8580
EAP38319001
EAP38319001
L607
2S
1S
1F
2F
3 . 3
R624
100
R607
0 . 0 1 u F
50V
C615
100V
OPT
D603
1uF
10V
C611
1000pF
50V
C631
100
R604
100
R605
0 . 1 u F
50V
50V
C638
10K
R611
0 . 0 1 u F
50V
C640
1uF
16V
C619
0 . 1 u F
50V
50V
C627
4.7K
R619
0
R603
1uF
10V
C617
100V
OPT
D601
22000pF
50V
C623
0 . 0 1 u F
50V
50V
C642
0 . 0 1 u F
50V
50V
C641
100
R601
5 . 6
R614
22000pF
50V
C624
MS_LRCH
008:V26
4.7K
R618
0
R610
0 . 1 u F
50V
C635
10K
R612
+1.8V_AMP
22000pF
50V
C618
DA-8580
EAP38319001
EAP38319001
L606
2S
1S
1F
2F
MLB-201209-0120P-N2
L604
3 . 3
R621
33pF
50V
50V
C609
+1.8V_AMP
3 . 3
R623
33pF
50V
50V
C612
AMP_MUTE
008:C13
MLB-201209-0120P-N2
L605
CB3216PA501E
L602
3 . 3
R625
3 . 3
R626
+3.3V_ST
0 . 0 1 u F
C643
0 . 0 1 u F
50V
50V
C644
0 . 1 u F
50V
50V
C645
0 . 1 u F
16V
C601
0 . 1 u F
16V
C605
0 . 1 u F
16V
C613
0 . 0 1 u F
50V
50V
C626
0 . 1 u F
50V
C625
POWER_DET
68uF
C602
68uF
C628
AZ1117H-1.8TRE1(EH13A)
IC601
2
OUTPUT
3
INPUT
1
ADJ/GND
0 . 1 u F
16V
16V
C648
22uF
16V
16V
C649
+1.8V_AMP
22uF
16V
16V
C646
+3.3V
0 . 1 u F
16V
16V
C647
GND
10uF
16V
C600
10uF
16V
C603
10K
R2223
EXT_SPK_L-
0 0 3 : P 2 0
6.8K
OPT
R2236
1.6K
R2227
390
R2226
1K
R2225
3.3K
R2234
2SC3875S(ALY)
Q1103
E
B
C
4.7K
R2242
10uF
6.3V
C2140
1uF
10V
C2142
4.7K
R2240
R2240
100
R2237
100
R2232
P E J 0 2 4 - 0 1
JK300
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
0
R2250
EXT_SPK
008:U28
TPA6011A4PWPRG4
IC300
3
PVDD_1
2
ROUT-
4
RHPIN
1
PGND_1
6
RIN
5
RLINEIN
7
VDD
8
LIN
9
LLINEIN
10
LHPIN
11
PVDD_2
12
LOUT-
13
PGND_2
14
LOUT+
15
SHUTDOWN
16
FADE
17
BYPASS
18
AGND
19
SEMAX
20
SEDIFF
21
VOLUME
22
HP/LINE
23
SE/BTL
24
ROUT+
OPT
R2230
1K
R2233
SUB_MUTE
008:AB19;003:AC20
1uF
10V
10V
OPT
C2149
3K
R2224
0 . 1 u F
C2144
1uF
50V
50V
C2145
+5V_GENERAL
0
R2231
OPT
R2229
EXT_SPK_L+
003:AF24
0
R2251
2SA1530A-T112-1R
Q1104
E
B
C
0 . 1 u F
OPT
C2141
15pF
50V
50V
C2139
1uF
10V
10V
OPT
C2148
9.1K
R2239
2SC3052
Q1105
E
B
C
10uF
16V
16V
C2143
OPT
R2235
OPT
R2238
EXT_SPK_L-
003:AF24
SUB_MUTE
008:AB19;003:Z25
1K
R2228
EXT_SPK_L+
003:W20
47K
R627
CB3216PA501E
L300
L_SOUND+ 003:AL13
R_SOUND+ 003:AL13
L_SOUND- 003:AL13
R_SOUND- 003:AL12
+24V_AMP
+24V_AMP
WAFER-ANGLE
P1400
1
2
3
4
R_SOUND+
003:AE12
R_SOUND-
003:AE10
L_SOUND+
003:AE16
L_SOUND-
003:AE14
+24V_AUDIO
+5V_ST_PTC
4.7K
OPT
R2555
+5V_GENERAL
THERMAL
NTP-3100L
EAN60664001
IC600
1
BST1A
2
VDR1A
3
RESET
4
AD
5
DVSS_1
6
VSS_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LFM
12
AVDD_PLL
13
DVDD_PLL
14
TEST0
15
DVSS_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR_0
23
MONITOR_1
24
MONITOR_2
25
FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
[EP]GND
SIGN69
SIGN73
SIGN75
SIGN76
SIGN85
SIGN89
SIGN97
SIGN102
Audio Amp
3 1 4
M s t a r A p p l i c a t i o n
SPEAKER_R
SPEAKER_L
EXTERNAL SPEAKER OUT
+1.8V_AMP & +24V_AMP
NTP3100L
BTL Type
BTL Type
26/32LG3DDH
AMP
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