LG 32LH240H (CHASSIS:LA96A) 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.
R909
0
OPT
UART_SWB
009:W35
+5V_ST_PTC
PTC_TX_1
012:C9
Q905
2SC3875S(ALY)
E
B
C
C904
0.047uF
0.047uF
R938
100
R942
1K
R940
100
PTC_RX_5V
009:AF25;012:K14
PTC_DEBUG_TX
009:Q29;012:Q8
C907
0.1uF
0.1uF
R917
10K
+5V_ST_PTC
R921
22K
C906
0.33uF
R932
100
R915
0
R918
100
R934
100
C902
0.1uF
0.1uF
R937
100
D901
SDC15
A1
C
A2
C910
220pF
R927
22K
22K
+5V_ST_PTC
IC901
MC14053BDR2G
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
R929
1K
R933
100
R931
100
D900
SDC15
A1
C
A2
R907
0
C908
0.1uF
0.1uF
R935
0
PTC_DEBUG_RX009:Q29;012:J8
C903
0.33uF
UART_SWA
009:W36
Q906
2SC3875S(ALY)
E
B
C
R941
10K
10K
IC903
MC14053BDR2G
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
Q902
2SC3875S(ALY)
E
B
C
R926
10K
10K
R939
100
R914
0
+5V_ST_PTC
+5V_ST_PTC
R922
22K
PTC_DEBUG_TX
009:Q29;012:D9
Q904
2SC3875S(ALY)
E
B
C
MSTAR_RX
008:AB27
IC902
ST3232CDR
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
R910
0
R925
OPT
R913
0
PTC_TX_MSTAR
008:AQ28
PTC_DEBUG_RX
009:Q29;012:Z7
C905
0.33uF
PTC_TX
009:AF26
PTC_TX_1
012:K17
PTC_RX_5V
009:AF25;012:J7
R919
100
R936
100
+5V_ST_PTC
Q903
2SC3875S(ALY)
E
B
C
R928
22K
+5V_ST_PTC
R930
100
R924
1K
R912
10K
C909
220pF
220pF
+5V_ST_PTC
R923
1K
Q901
2SC3875S(ALY)
E
B
C
R916
0
OPT
MSTAR_TX
008:AB27
BSS83
Q1200
S
B
D
G
R2521
4.7K
4.7K
+3.3V_ST
PTC_RX_MSTAR
008:AQ27
R2522
4.7K
4.7K
GND
+3.3V_ST
PTC_RX_MSTAR_5V
012:J8
+5V_ST_PTC
P900
KCN-DS-1-0088
1
2
3
4
5
6
7
8
9
10
L901
MLB-201209-0120P-N2
L900
MLB-201209-0120P-N2
R920
100
OPT
R955
0
OPT
R957
0
OPT
R956
100
OPT
RX_G6
008:AO31
R958
0
R959
0
OPT
TX_F5
008:AR32
+5V_ST_PTC
R1200
4.7K
4.7K
GND
BSS83
Q1201
S
B
D
G
R1201
4.7K
4.7K
+3.3V_ST
+3.3V_ST
UART
12 14
UART
37LH250H
Serial Port
RxD
09.05.19
USB DOWN STREAM
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
SIGN799
USB_DP
008:AR34
USB_DM
008:AR34
L1300
CB3216PA501E
R2513
180
IC1304
MIC2009YM6-TR
3
ENABLE
2
GND
4
FAULT/
1
VIN
6
VOUT
5
ILIMIT
R2515
4.7K
4.7K
C2248
10uF
10V
+5V_EXT
R2518
10K
C2249
0.1uF
0.1uF
+3.3V
USB_CTL
USB_OCD
R2514
47
47
D1305
5.6V
ADMC5M03200L
D1304
5.6V
ADMC5M03200L
P1207
KJA-UB-4-0004
1
2
3
4
5
C2252
47uF
10V
47uF
10V
C2251
47uF
10V
47uF
10V
13
14
USB JACK
USB +5V Over Current Protection --> USB Jack
USB JACK (DOWN LOAD ONLYU)
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.
TUNER
GND
+5V_BLAN
C802
100uF
16V
16V
Q506
2SC3875S(ALY)
E
B
C
C801
2.2uF
25V
R631
2.2K
R630
22K
22K
Q507
SI4925BDY
3
S2
2
G1
4
G2
1
S1
5
D2_1
6
D2_2
7
D1_1
8
D1_2
+5V_BLAN
5VST
5VST
R1093
0
OPT
C1411
100uF
16V
16V
JK1400
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
R1415
0
0
R1413
0
0
R1416
0
0
R1414
0
0
R1418
0
0
R1417
0
0
GND
IC1401
MC14053BDR2G
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
b_MPI_DIN
014:S7;014:Y26
R1409
0
R1402
0
b_MPI_DOUT
014:S7;014:Y26
R1403
0
R1404
0
b_SPI_DATA_OUT
014:S14;014:Y25
b_SPI_DATA_IN
014:S13;014:Y25
R1405
0
b_SPI_CLOCK
014:Y24;014:Y13
R1400
0
b_IR_IN_MODEM
009:M6;014:Y23
R1410
0
BEXT_MPI_OUT
014:J11
R1407
0
R1406
0
R1401
0
BEXT_IR_MODEM
014:J8
BEXT_MPI_DIN
014:J10
R1434
0
R1435
0
R1436
0
R1437
0
R1438
0
R1450
0
R1449
0
R1448
0
R1451
0
R1452
0
R1453
0
R1454
0
C1415
0.1uF
0.1uF
+5V_ST_PTC
+5V_ST_PTC
R1420
0
R1419
0
R1427
0
R1429
0
OPT
R1421
0
R1422
0
R1431
0
IC1400
MC14053BDR2G
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
R1430
0
OPT
R1423
0
C1414
0.1uF
0.1uF
R1426
0
R1428
0
OPT
R1425
0
Q1402
2SC3875S(ALY)
E
B
C
R1463
10K
+5V_ST_PTC
SPI_CLOCK
009:I12;009:N25
SPI_DATA_OUT
009:I13;009:AJ27
SPI_DATA_IN
009:I12;009:N26
DUM_SPI_CLOCK 009:K9
b_SPI_CLOCK
014:K20;014:Y24
b_SPI_DATA_OUT
014:K20;014:Y25
DUM_SPI_DATA_OUT
009:K10
b_SPI_DATA_IN
014:K20;014:Y25
DUM_SPI_DATA_IN
009:K10
MPI_DOUT
009:I13;009:AO27
b_MPI_DOUT
014:K21;014:Y26
BUFFERED_MPI_DIN
009:I14;009:AJ28
b_MPI_DIN
014:K21;014:Y26
DUM_BUFFERED_MPI_DIN
009:K11
bLAN_CTRL_1
bLAN_CTRL_0
bLAN_CTRL_0
014:Y12
R1462
0
R1466
10K
R1465
0
OPT
bLAN_CTRL_PTC_0
009:AA35
bLAN_POWER_MANAGE
009:AA35;014:AD19
BEXT_Game_Control_Latch
014:J9
b_com_PWCTRL
009:BA31
R2519
0
BEXT_5V
DUM_MPI_DOUT
009:K11
BEXT_IR_MODEM
014:L15
BEXT_MPI_OUT
014:L17
BEXT_5V
BEXT_MPI_DIN
014:L17
BEXT_Game_Control_Latch 014:L16
JK1401
MJ-623PT-6-S-SD
1
2
3
4
5
6
7
R629 22K
OPT
R1467
0
R1464
4.7K
L502
MLB-201209-0120P-N2
L1401
MLB-201209-0120P-N2
R2529
0
R2530
0
R2533
4.7K
R2535
10K
R2534
0
OPT
R2536
0
R2531
0
bLAN_CTRL_PTC_1
009:AA36
R2532
10K
bLAN_CTRL_1
014:Y5
014:Y5
+5V_ST_PTC
Q1404
2SC3875S(ALY)
E
B
C
C1413
100uF
16V
16V
L1403
MLB-201209-0120P-N2
L1402
MLB-201209-0120P-N2
+12V_C
Q908
2SC3875S(ALY)
E
B
C
R1910
47K
47K
+12V_C
R1905 47K
OPT
C1903
2.2uF
25V
R1906
0
R1909
47K
47K
R2537
22K
OPT
bLAN_POWER_MANAGE
009:AA35;014:AF24
+12V_C_MPI
R1904
47K
47K
R628
47K
C1906
22uF
25V
C1904
47uF
25V
25V
R2538
10K
10K
OPT
R2539
0
OPT
R2562
0
OPT
TU1002
TMMB-H001P(W/O Tuner)
1
RF_OUT[NC]
2
GND_1
3
+3.3V
4
TSCL
5
TSDA
6
GND_2
7
IF_AGC
8
DIF-P
9
DIF-N
10
+5V
11
GND_3
12
JP2-P1
13
JP2-P4
14
J1-P2
15
J1-P3
16
J1-P4
17
J1-P5
18
PTS
19
JP1-P3
20
JP1-P4
21
JP1-P5
22
JP1-P6
23
JP1-P7
24
JP1-P10
25
J2-P1
26
J2-P2
27
J2-P3
28
J2-P4
29
J2-P6
30
SHIELD
R2566
10K
R2565
10K
D1400
5.6V
OPT
D1401
5.6V
OPT
D1402
5.6V
OPT
D1403
5.6V
OPT
D1404
5.6V
OPT
D1405
5.6V
OPT
D1406
5.6V
OPT
D1407
5.6V
OPT
GND
D1408
30V
OPT
R2567
0
0
P1405
12505WS-15A00
1
NC
2
GND
3
MPI IN
4
MPI OUT
5
PM4
6
PM2
7
PM1
8
GND
9
NC
10
PTO
11
NC
12
5V ON
13
12V ON
14
5VST
16
GND
15
NC
GND
bLAN_CHECK_5V
014:Y21
bLAN_CHECK_5VON
014:Y22
bLAN_CHECK_12VON
014:Y21
bLAN_CHECK_12VON
014:AD20
bLAN_CHECK_5VON
014:AF25
bLAN_CHECK_5V
014:AF26
b_SPI_CLOCK
014:K20;014:Y13
b_SPI_DATA_OUT
014:K20;014:S14
b_MPI_DOUT
014:K21;014:S7
b_MPI_DIN
014:K21;014:S7
b_SPI_DATA_IN
014:K20;014:S13
b_IR_IN_MODEM
009:M6;014:N19
L1404
MLB-201209-0120P-N2
C1412
0.22uF
50V
0.22uF
50V
R2568
0
0
R2569
0
0
R2570
0
0
R2571
0
0
R2572
0
0
R2573
0
0
P1400
YFDW254-06S
YFDW254-06S
4
3
2
6
1
5
B-LAN
14 14
B-LAN
37LH250H
***MPI_OUT bypass
B-LAN ON/OFF Control
B-LAN POWER
***Lines is same length as Possible as
b_LAN MPI JACK
POWER LINE
5VST_JIG
5VST_JIG
5VST_JIG
09.05.19
BLAN CHECK
BLAN CHECK
BLAN CHECK
JIG WAFER