Read LG 22LU50FD (CHASSIS:LC91M) Service Manual online
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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.
INTERFACE
C1439
18pF
50V
D1423
5.6V
OPT
AMOTECH
PC_L_IN
002:S16
JK1401
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
AV2_DET
001:AJ18
AV2_R_IN
002:S15
AV1_DET
001:AJ15
REAR_USB_DP
001:AL7
DSUB_HSYNC
002:E18
DBG_RX
001:Y15;001:AJ11
D1449
5.6V
CDS3C05HDMI1
JK1408
KCN-DS-1-0088
1
2
3
4
5
6
7
8
9
10
D1417
30V
AMOTECH
D1422
5.6V
OPT
OPT
AMOTECH
+3.3V
+3.3V
D1447
5.6V
AMOTECH
AV1_CVBS_IN
002:E21
C1411
OPT
OPT
IR_OUT
008:V18
D1412
30V
AMOTECH
+5V_ST
D1420
30V
AMOTECH
AV1_R_IN
002:S15
AV2_L_IN
002:S15
+3.3V
R1491
10K
IC1401
CAT24C02WI-GT3
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
COMP1_L_IN
002:S14
D1426
30V
OPT
D1402
5.6V
OPT
OPT
AMOTECH
PC_R_IN
002:S16
C1413
OPT
OPT
D1440
5.6V
AMOTECH
D1442
5.6V
AMOTECH
D1448
ENKMC2838-T112
A1
C
A2
D1446
5.6V
AMOTECH
D1441
30V
AMOTECH
D1424
5.6V
OPT
AMOTECH
D1414
5.6V
AMOTECH
DSUB_G
002:E19
+5V_ST
JK1407
KCN-DS-1-0089
1
2
3
4
5
6
7
8
9
1
0
1
1
1
2
1
3
1
4
1
5
1
6
D1445
30V
AMOTECH
D1451
5.6V
CDS3C05HDMI1
+3.3V
ISP_RXD
001:Y14
C1412
OPT
OPT
COMP1_Y_IN
002:E16
DSUB_DET
001:AA22
C1440
18pF
18pF
50V
D1419
30V
AMOTECH
AV1_L_IN
002:S15
D1411
30V
AMOTECH
IC1400
MAX3232CDR
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
+5V_ST
DSUB_VSYNC
002:E18
D1418
30V
AMOTECH
COMP1_DET
001:AJ20
COMP1_Pr_IN
002:E16
DSUB_B
002:E19
COMP1_R_IN
002:S14
D1425
30V
OPT
D1413
30V
AMOTECH
DBG_TX
001:Y15;001:AN10
D1415
5.6V
AMOTECH
COMP1_Pb_IN
002:E17
D1444
5.6V
AMOTECH
D1416
5.6V
AMOTECH
REAR_USB_DM
001:AL8
+5V_USB_REAR
D1403
5.6V
OPT
OPT
AMOTECH
EDID_WP
001:AJ19;005:I15;005:W15;005:AL15
D1421
30V
AMOTECH
D1443
5.6V
AMOTECH
DSUB_R
002:E18
ISP_TXD
001:Y15;001:AN11
AV2_CVBS_IN
002:E21
R1496
0
0
R1497
0
0
R1498
0
0
R1402
470K
470K
R1403
470K
470K
R1433
470K
470K
R1434
470K
R1474
470K
470K
R1475
470K
R1477
470K
R1478
470K
R1407
15K
15K
R1408
15K
15K
R1411
10K
R1413
10K
R1435
10K
10K
R1436
10K
10K
R1481
10K
10K
R1482
10K
10K
R1483
10K
R1484
10K
R1412
0
OPT
R1418
0
0
R1419
0
0
R1428
0
0
R1439
0
0
R1440
0
0
R1449
0
OPT
OPT
R1455
0
0
R1456
0
R1430
75
R1431
75
R1432
75
R1479
75
75
R1480
75
R1429
1K
1K
R1452
1K
1K
R1473
1K
R1476
1K
R1427
4.7K
R1451
4.7K
R1457
4.7K
4.7K
R1458
4.7K
R1437
12K
12K
R1438
12K
12K
R1485
12K
R1486
12K
R1487
12K
R1488
12K
R1446
22
22
R1448
22
22
R1453
100
R1454
100
C1400
100pF
50V
C1401
100pF
50V
C1432
100pF
50V
C1433
100pF
50V
C1434
100pF
50V
C1435
100pF
50V
C1420
0.1uF
16V
0.1uF
16V
C1421
0.1uF
0.1uF
16V
C1430
0.1uF
16V
0.1uF
16V
C1431
0.1uF
0.1uF
16V
C1438
0.1uF
16V
C1409
1000pF
50V
1000pF
50V
C1410
1000pF
50V
1000pF
50V
C1415
220pF
220pF
50V
C1416
220pF
50V
C1436
47pF
50V
47pF
50V
C1437
47pF
50V
C1445
0.1uF
16V
0.1uF
16V
R1447
6.2K
6.2K
R1450
6.2K
6.2K
C1414
0.33uF
16V
C1417
0.33uF
16V
C1418
0.33uF
16V
C1419
0.047uF
25V
C1446
100uF
16V
100uF
16V
R1489
4.7K
R1490
4.7K
4.7K
R1499
100
100
C1428
68pF
68pF
C1429
68pF
68pF
R1441
68
R1442
68
JK1402
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
JK1404
PPJ218-02
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
JK1409
UB01123-4HHS-4F
1
2
3
4
5
R1421
75
+3.3V
D1452
30V
AMOTECH
C1443
47pF
50V
47pF
50V
S_DET
001:AJ19
D1453
30V
AMOTECH
R1425
1K
1K
D1454
5.6V
AMOTECH
R1422
0
JK1405
PSJ014-01
6
GND
1
C-LUG1
2
C-LUG2
3
0-SPRING
4
C-LUG3
5
C-LUG4
7
SHIELD
R1420
0
S_C_IN
002:E22
R1424
10K
S_Y_IN
002:E22
R1423
75
75
C1444
47pF
50V
47pF
50V
JK1403
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
C1407
100pF
50V
OPT
SPDIF_OUT
002:U18
R1426
1K
OPT
+5V_GENERAL
D1400
OPT
+5V_GENERAL
C1408
0.1uF
16V
0.1uF
16V
R1445
75
75
R1443
75
75
R1444
75
C1406
0.1uF
16V
0.1uF
16V
R1416
0
OPT
R1415
4.7K
IC1402
NL17SZ00DFT2G
3
GND
2
B
4
Y
1
A
5
VCC
R1417
22
1%
+5V_GENERAL
EAX61023402
4 9
2009.04.28
PC AUDIO
AV2(SIDE)
Component and AV1(rear)
REAR_USB
RS232C
RGB PC
Close to JK1409
LC91M(22/26LU50FD-CA)
*only 26inch
S-Video(AV1,rear)
SPDIF OUT
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