LG 32LH240H (CHASSIS:LA96A) Service Manual ▷ View online
- 25 -
EXPLODED VIEW
300
510
500
120
200
810
900
806
801
520
802
550
530
803
804
540
805
590
800
400
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.
IMPORTANT SAFETY NOTICE
A2
LV1
A10
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.
TUNER
SIGN25
DSUB_B
008:D28
R1305
0
0
COMP1_L_IN
008:R33
DSUB_G
008:D29
C1222
18pF
50V
R1247
470K
470K
R1268
0
OPT
R1249
4.7K
PC_L_IN
008:R31
R1245
470K
COMP1_R_IN
008:R33
R1263
12K
R1270
10K
OPT
R1238
75
L1208
BG2012B080TF
C1227
100pF
OPT
R1243
75
EEPROM_WP
008:AP22;002:T21;002:T8
R1264
12K
R1251
10K
10K
R1232
0
R1255
12K
12K
C1228
0.1uF
16V
16V
R1242
75
R1252
10K
10K
R1303
12K
SIDEAV_R_IN
008:R33
C1240
100pF
50V
R1235
75
75
C1224
100pF
50V
SIDEAV_CVBS_IN
008:D26
ISP_TXD
008:AB27;008:AR31
SIDEAV_L_IN
008:R33
R1233
0
R1269
100
R1259
10K
R1298
470K
470K
COMP1_PB
008:D31
R1301
10K
10K
D1223
ENKMC2838-T112
A1
C
A2
R1236
75
SIDEAV_SW
009:P28
L1207
BG2012B080TF
R1262
10K
L1206
BG2012B080TF
ISP_RXD
008:AB27
C1221
1000pF
50V
1000pF
50V
R1246
470K
R1258
10K
R1257
22
22
R1256
12K
12K
R1244
470K
R1300
10K
10K
DSUB_VSYNC
008:D29
C1219
100pF
PC_R_IN
008:R32
C1220
1000pF
50V
1000pF
50V
C1225
100pF
100pF
50V
COMP1_Y
008:D31
R1265
22
22
R1234
75
75
R1253
4.7K
4.7K
R1307
0
0
JK1205
PEJ024-01
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
C1223
18pF
18pF
50V
C1241
100pF
50V
DSUB_R
008:D29
R1254
1K
1K
DSUB_HSYNC
008:D29
R1304
12K
R1297
470K
470K
R1241
75
C1251
100pF
50V
R1207
12K
R1210
12K
AV_R_IN
008:R32
AV_L_IN
008:R32
C1250
100pF
50V
R1208
470K
R1206
470K
R1205
10K
R1211
10K
AV_CVBS_IN
008:D26
C1252
47pF
50V
R1215
75
1%
L1218
BG2012B080TF
L1217
BG2012B080TF
+3.3V
+5V_GENERAL
R1248
10K
JK1204
KCN-DS-1-0089
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
IC1200
AT24C02BN-10SU-1.8
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D1222
5.6V
OPT
OPT
ADMC5M03200L
D1212
5.6V
OPT
ADMC5M03200L
D1221
5.6V
ADMC5M03200L
D1235
5.6V
OPT
ADMC5M03200L
D1234
5.6V
OPT
ADMC5M03200L
D1214
5.6V
OPT
ADMC5M03200L
D1211
5.6V
OPT
ADMC5M03200L
D1243
5.6V
OPT
ADMC5M03200L
D1224
5.6V
OPT
ADMC5M03200L
D1242
5.6V
OPT
ADMC5M03200L
D1225
5.6V
OPT
ADMC5M03200L
D1213
5.6V
OPT
ADMC5M03200L
D1216
30V
ADUC30S03010L
D1217
30V
ADUC30S03010L
D1208
30V
OPT
ADUC30S03010L
D1209
30V
OPT
ADUC30S03010L
D1218
30V
ADUC30S03010L
D1215
30V
OPT
ADUC30S03010L
D1207
30V
D1245
30V
OPT
ADUC30S03010L
D1219
30V
ADUC30S03010L
D1210
30V
OPT
ADUC30S03010L
JK1200
PPJ228-01
9A
[GN]E-LUG
4A
[GN]O-SPRING-S
3A
[GN]CONTACT-S
9C
[RD]E-LUG_1
8C
[RD]C-LUG-S
9D
[WH]E-LUG
8D
[WH]C-LUG-S
9E
[RD]E-LUG_2
4E
[RD]O-SPRING-S
3E
[RD]CONTACT-S
5F
[YL]O-SPRING-L
6F
[YL]CONTACT-L
7G
[WH]C-LUG-L
5H
[RD]O-SPRING-L
6H
[RD]CONTACT-L
9B
[BL]E-LUG
8B
[BL]C-LUG-S
+5V_ST_PTC
C1217
0.1uF
OPT
C1218
0.1uF
OPT
C1216
0.1uF
OPT
JK1202
PPJ218-01
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
1
IN/OUT
14
SIDE_AV
R,G,B PC&DDC
PC AUDIO
COMPONENT1,AV1
37LH250H
09.05.19
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.
HDMI
HPD2
008:D35
GND
D1-_HDMI2
008:D36
D0+_HDMI2
008:D36
5V_HDMI_2
008:Q29;002:S11
CK-_HDMI2
008:D37
GND
CK+_HDMI1
008:D39
R509
0
R508
0
DDC_SDA_1
008:D38;002:S20
C502
0.1uF
16V
D2+_HDMI2
008:D36
D1-_HDMI1
008:D38
R510
0
HPD1
008:D37
C501
0.1uF
16V
16V
CK-_HDMI1
008:D39
JP505
R506
0
D0-_HDMI2
008:D36
D2+_HDMI1
008:D38
JP504
DDC_SCL_2
008:D35;002:S7
5V_HDMI_1
DDC_SDA_2
008:D35;002:S7
D2-_HDMI2
008:D35
R511
0
D1+_HDMI1
008:D38
CK+_HDMI2
008:D37
D0-_HDMI1
008:D39
DDC_SCL_1
008:D37;002:S20
D2-_HDMI1
008:D38
D1+_HDMI2
008:D36
JP503
D0+_HDMI1
008:D39
JP502
R507
0
R577
0
R578
0
R579
0
R580
0
R581
0
R582
0
R583
0
R584
0
R576
0
R572
0
R569
0
R573
0
R570
0
R571
0
R574
0
R575
0
C515
8pF
50V
8pF
50V
OPT
C512
8pF
50V
8pF
50V
OPT
R536
4.7K
4.7K
DDC_SDA_1
IC500
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_SCL_1
5V_HDMI_1
R539
4.7K
4.7K
+5V_GENERAL
R545
100
100
R542
10K
OPT
R530
22
EEPROM_WP
D501
ENKMC2838-T112
A1
C
A2
R531
22
C509
0.1uF
50V
0.1uF
50V
C516
8pF
50V
8pF
50V
OPT
C513
8pF
50V
8pF
50V
OPT
R537
4.7K
4.7K
DDC_SDA_2
IC501
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
DDC_SCL_2
5V_HDMI_2
R540
4.7K
4.7K
+5V_GENERAL
R546
100
100
R543
10K
OPT
R532
22
EEPROM_WP
D502
ENKMC2838-T112
A1
C
A2
R533
22
C510
0.1uF
50V
0.1uF
50V
VR500
AVRL161A1R1NT
OPT
+3.3V_ST
R556
47K
OPT
47K
OPT
VR501
AVRL161A1R1NT
OPT
+3.3V_ST
R557
47K
OPT
OPT
R552
1K
R553
1K
JP501
JP500
R502
820
R501
820
Q504
2SC3052
E
B
C
R513
10K
10K
Q505
2SC3052
E
B
C
R514
10K
10K
JK501
QJ41193-CFEE1-7F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
JK500
QJ41193-CFEE1-7F
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
HDMI
HDMI1
HDMI2
2 14
EDID
EDID
HDMI2
HDMI1
37LH250H
09.05.19
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.
AMP
SIGN68
SIGN69
SIGN73
SIGN75
SIGN76
SIGN85
SIGN88
SIGN89
SIGN91
SIGN97
SIGN102
+24V_AMP
+24V_AMP
L611
120-ohm
L603
MLB-201209-0120P-N2
D604
100V
OPT
SPK_L-
003:AD14
R608
100
AMP_RST
008:AB21
R606
100
C633
0.47uF
50V
R616
5.6
C629
1000pF
50V
0.1uF
C620
50V
R620
4.7K
C630
1000pF
50V
0.01uF
C639
50V
C622
1uF
16V
AUDIO_MASTER_CLK
008:V26
C607
1000pF
50V
R602
3.3K
MS_SCK
008:V26
D602
100V
OPT
C634
0.47uF
50V
0.1uF
C608
R600
0
R617
4.7K
C614
22000pF
50V
R609
33K
OPT
+3.3V
R622
3.3
C632
1000pF
50V
L608
120-ohm
SPK_R-
003:AD9
C606
1000pF
50V
SPK_R- 003:AK12
+1.8V_AMP
C610
10uF
10uF
10V
SPK_L- 003:AK13
R615
5.6
SDA_SUB/AMP
008:AI4;010:B8
Q600
2SC3052
E
B
C
C616
33pF
50V
OPT
33pF
50V
OPT
C604
100pF
50V
0.1uF
C636
50V
0.1uF
C637
50V
R613
5.6
MS_LRCK
008:V26
SPK_R+ 003:AK12
SCL_SUB/AMP
008:AI4;010:B10
L607
DA-8580
EAP38319001
DA-8580
EAP38319001
2S
1S
1F
2F
R624
3.3
R607
100
0.01uF
C615
50V
D603
100V
OPT
L609
120-ohm
C611
1uF
10V
C631
1000pF
50V
R604
100
R605
100
0.1uF
C638
50V
R611
10K
0.01uF
C640
50V
C619
1uF
16V
0.1uF
C627
50V
R619
4.7K
R603
0
0
SPK_L+
003:AD16
C617
1uF
10V
D601
100V
OPT
C623
22000pF
50V
0.01uF
C642
50V
0.01uF
C641
50V
R601
100
R614
5.6
C624
22000pF
50V
MS_LRCH
008:V26
SPK_R+
003:AD12
R618
4.7K
R610
0
0.1uF
C635
50V
R612
10K
+1.8V_AMP
+24V_AMP
L610
120-ohm
C618
22000pF
50V
L606
DA-8580
EAP38319001
DA-8580
EAP38319001
2S
1S
1F
2F
L604
MLB-201209-0120P-N2
P600
WAFER-ANGLE
1
2
3
4
R621
3.3
C609
33pF
50V
33pF
50V
SPK_L+
003:AK13
+1.8V_AMP
R623
3.3
C612
33pF
50V
33pF
50V
AMP_MUTE
008:C13
L605
MLB-201209-0120P-N2
L602
CB3216PA501E
R625
3.3
3.3
R626
3.3
3.3
+3.3V_ST
0.01uF
C643
C644
0.01uF
50V
0.01uF
50V
C645
0.1uF
50V
0.1uF
50V
C601
0.1uF
16V
C605
0.1uF
16V
0.1uF
C613
16V
0.01uF
C626
50V
0.1uF
C625
50V
POWER_DET
C602
68uF
C628
68uF
IC601
AZ1117H-1.8TRE1(EH13A)
2
OUTPUT
3
INPUT
1
ADJ/GND
C648
0.1uF
16V
0.1uF
16V
C649
22uF
16V
16V
+1.8V_AMP
C646
22uF
16V
16V
+3.3V
C647
0.1uF
16V
0.1uF
16V
GND
C600
10uF
16V
C603
10uF
16V
IC600
NTP-3100L
EAN60664001
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
+24V_AUDIO
R2223
10K
EXT_SPK_L-
003:P20
R2236
6.8K
OPT
R2227
1.6K
1.6K
R2226
390
R2225
1K
R2234
3.3K
3.3K
Q1103
2SC3875S(ALY)
2SC3875S(ALY)
E
B
C
R2242
4.7K
C2140
10uF
6.3V
C2142
1uF
10V
R2240
4.7K
R2237
100
100
R2232
100
JK300
PEJ024-01
6B
T_TERMINAL2
8
SHIELD_PLATE
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
R2250
0
EXT_SPK
008:V28
+5V_GENERAL
IC300
TPA6011A4PWPRG4
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+
R2230
OPT
R2233
1K
SUB_MUTE
008:AB19;003:AC20
C2149
1uF
10V
1uF
10V
OPT
R2224
3K
C2144
0.1uF
0.1uF
C2145
1uF
50V
50V
+5V_GENERAL
R2231
0
R2229
OPT
EXT_SPK_L+
003:AF24
R2251
0
Q1104
2SA1530A-T112-1R
E
B
C
C2141
0.1uF
0.1uF
OPT
C2139
15pF
50V
15pF
50V
C2148
1uF
10V
1uF
10V
OPT
R2239
9.1K
Q1105
2SC3052
E
B
C
C2143
10uF
16V
16V
R2235
OPT
R2238
OPT
EXT_SPK_L-
003:AF24
SUB_MUTE
008:AB19;003:Z25
R2228
1K
EXT_SPK_L+
003:W20
R627
47K
L300
CB3216PA501E
Audio Amp
3 14
Mstar Application
SPEAKER_R
SPEAKER_L
EXTERNAL SPEAKER OUT
+1.8V_AMP & +24V_AMP
NTP3100L
37LH250H
09.05.19
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