LG 42LC7D (CHASSIS:LB73A) Service Manual ▷ View online
47uF
16V
C1316
100uF
16V
C1306
MSP4410_ANALOG_L
AUDIO_IN_SCLK
HD2_DAC_MCLK
AUDIO_IN_DATA_H
AUDIO_IN_LRCLK
100uF
16V
C1310
CS5331A-KSR
IC1300
3
2
4
1
5
6
7
8
MSP4410_ANALOG_R
SPDIF_OUT
HD2_DAC_SCLK
HD2_DAC_LRCLK
HA_DAC_LRCH
HA_DAC_LRCK
HD2_DAC_LRCH
HA_DAC_SCK
+5.0V
+5.0V
+5.0V
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.
TPH254-R-1419-6A
P1300
4
3
2
6
1
5
HD2_SPDIF_CLK
RX_HDMI_SPDIF
HD2_ICE958_IN
SDA_CH4
SPDIF_ERROR
10uH
L1302
10uH
L1303
AC_EMPH
+5.0V
SCL_CH4
HD2_DAC_SCLK
CS8415A-CZR
IC1303
3
EMPH
2
AD0/CS
4
RXP0
1
SDA/CDOUT
6
VA+
5
RXN0
7
AGND
8
FILT
9
RST
10
RMCK
11
RERR
12
RXP1
13
RXP2
14
RXP3
15 RXP4
16 OSCLK
17 OLRCK
18 SDOUT
19 INT
20 U
21 OMCK
22 DGND
23 VL+
24 H/S
25 RXP5
26 RXP6
27 AD1/CDIN
28 SCL/CCLK
HD2_DAC_LRCLK
8415_RESET
+5.0V
10uF
16V
C1318
22uF16V
C1302
22uF16V
C1313
22uF
16V
C1301
22uF 16V
C1312
MC33078DR2G
IC1301
3
2
4
1
5
6
7
8
ZD1300
OPT
0.01uF
C1314
0.01uF
C1300
0.01uF
C1321
0.01uF
C1324
47pF
50V
C1311
47pF
50V
C1303
0.1uF
C1307
0.1uF
C1304
0.1uF
C1308
0.1uF
C1309
0.1uF
C1325
0.1uF
C1315
0.1uF
C1305
0.1uF
C1323
0.1uF
C1322
4700pF
C1317
OPT
R1324
OPT
R1300
150
R1301
150
R1322
10K
R1323
10K
R1302
6.8K
R1320
6.8K
R1303
270
R1304
270
R1321
22
R1306
22
R1308
22
R1307
22
R1305
27
R1309
4.7K
R1311
4.7K
R1310
4.7K
R1315
4.7K
R1314
1K
R1330
1K
R1312
47K
R1313
47K
R1329
0
R1319
0
R1325
0
R1316
0
R1317
0
R1327
0
R1331
0
R1332
0
R1328
0
R1333
1.2K
R1326
9VDD_MC3307
SPDIF
OPTIC_ASSY
P1300-*1
4
3
2
6
1
5
0.01uF
C1320
MSP4450K_SPDIF
75
R1318
OPT
FI-C2012-682KJT
L1301
FI-C2012-682KJT
L1300
This Symbol should be changed with the correct Gumi Common Symbol,
when the common symbol is made.
Optical SPDIF Out
The MUX Function is changed to CPLD
AUDIO_IN_LRCH
Digital Audio In (TO HD2_LINE_IN,PVR_BD)
HA_DAC_SCK
AUDIO_IN_LRCLK
Delete Buffer
HA_DAC_LRCH
AUDIO_IN_SCLK
HA_DAC_LRCK
Digital Audio Out(TO MSP4450_M,MSP4450_S)
SPDIF OUT
$ 0.95
$ 0.15
=> 20xH(W), 21xH(R)
Value
¡
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.
3.3VST_MICOM
ISDA
SCL_CH3
100uF
16V
16V
C1411
10uF
16V
C1405
KEY1
LED_G
SDA_CH3
3.3VST_MICOM
SCL_CH3
1uF
50V
50V
C1402
DDC_SDA
MUTE1
2SC3875S
Q1400
E
B
C
RL_ON/POWER_ON
3.3VST_MICOM
LCD_LVDS_PANNEL_CTRL
KIA7029AF
IC1400
2
G
3
O
1
I
DDC_SCL
SDA_CH3
ISDA
W_PROTECT
5V_MNT/ERROR_OUT
24MHz
X1400
2
1
KEY2
AC_DET
UCOM_RX
4.7K R1450
AI_ON/OFF
10uF
C1401
VAVS_ON/INV_ON
LED_R
AT24C16AN-10SI-2.7
IC1401
3
A2
2
A1
4
GND
1
A0
5
SDA1
6
SCL1
7
TEST
8
VCC
ISCL
10uF
C1400
3.3VST_MICOM
KDS184
D1400
EXT_VBR
4.7K
R1452
ISCL
TX
MTV416GMF
IC1402
1
HSYNC/P1.5
2
VSYNC/P1.6
3
P1.7/SOGI
4
RST
5
HSCL1/P3.0/RXD
6
P4.3/AD3
7
HSDA1/P3.1/TXD
8
P3.2/INT0
9
P3.3/INT1
10
ISDA/P3.4/T0
11
ISCL/P7.5
12
HSDA2/P7.4
13
HSCL2/P7.3
14
X2
15
X1
16
VSS
17
P4.0/AD0
18
P6.0/CLKO1
19
P6.1
20
P6.2
21
P6.3
22
P6.4
23
P6.5
24
P6.6
25
P6.7
26
P7.2/HCLAMP
27
P7.1/VBLANK
28
P4.1/AD1
29
P7.0/HBLANK
30
P5.7/CLKO2
31
P5.6
32
P5.5
33
P5.4
34
P5.3
35
P5.2
36
P5.1
37
P5.0
38
VDD
39
P4.2/AD2
40
P1.0/ET2
41
P1.1/DA0
42
P1.2/DA1
43
P1.3/DA2
44
P1.4/DA3
INV_BRI
DISP_EN
22uF
35V
C1414
MLB-201209-0120P-N2
L1407
3.3VST_MICOM
22uF
35V
C1421
+5V_ST
AZ1117H-3.3
IC1403
2
OUTPUT
3
INPUT
1ADJ/GND
5VST
47uF
16V
16V
C1428
+5V_ST
GND
PWM_DIMM
3.3V_ON
MICOM_RESET
8.2K
R1451
HH-1M3216-501
L1405
220pF
C1403
0.1uF
16V
C1404
0.1uF
16V
C1415
0.1uF
16V
C1425
0.1uF
C1409
0.1uF
C1413
0.1uF
C1422
0.1uF
C1410
22pF
C1407
22pF
C1406
OPT
C1412
OPT
C1408
0.01uF
C1426
OPT
R1424
OPT
R1405
OPT
R1403
OPT
R1429
OPT
R1417
OPT
R1423
OPT
R1401
OPT
R1407
OPT
R1440
OPT
R1404
OPT
R1409
47K
R1402
3.3K
R1413
3.3K
R1406
2.7K
R1412
2.7K
R1458
2.7K
R1410
2.7K
R1411
2.7K
R1454
2.7K
R1470
2.7K
R1456
2.7K
R1457
2.7K
R1455
100
R1419
100
R1432
100
R1420
100
R1439
100
R1468
100
R1449
100
R1453
100
R1469
100
R1447
22
R1459
22
R1441
22
R1437
22
R1461
22
R1426
22
R1418
22
R1467
22
R1430
22
R1425
22
R1443
22
R1465
22
R1462
22
R1464
22
R1435
22
R1427
22
R1422
22
R1431
22
R1463
22
R1433
22
R1460
22
R1428
22
R1421
22
R1416
22
R1466
0
R1434
0
R1436
1K
R1438
HDMI_CEC
COMP1_SW
COMP2_SW
RGB_SW
100
R1445
3.3VST_MICOM
2.7K
R1478
OPT
2.7K
R1477
OPT
0
R1474
LED_G
0
R1473
KEY1
OPT
ZD1400
0
R1475
IR
KEY2
0
R1472
HH-1M2012-121
L1404
0
R1471
OPT
ZD1401
LED_R
5VST
SMW200-10
P1400
1
2
3
4
5
6
7
8
9
10
IR_GND
GND
IR_GND
22
R1448
+5V_ST
4.7K
R1408
0
R1414
27K
R1400
FL1408
FL1402
FL1401
FL1400
FL1406
FL1403
0
R1415
For LCD
For LCD
SUB MICOM
For LCD
$ 1.0
$ 0.098
$ 0.085
For LCD
$ 0.06
LOCAL KEY / IR 10P
For LCD(PDP OPT)
For LCD(PDP OPT)
For LCD(PDP OPT)
Seperated Ground
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.
+6.0V
0.1uF
C1514
L1513
L1509
0.1uF
C1504
C1504
L1508
+19.0V
SMW250-10
P1500
1
2
3
4
5
6
7
8
9
10
9VDD_MSP4440
0.1uF
C1506
C1506
0.1uF
C1503
C1503
L1507
+3.3V
+12.0V
L1510
KA7809ERTM
IC1500
2
G
3
O
1
I
0.1uF
C1505
C1505
OPT
C1513
+6.0V
68uF
10V
10V
C1502
0
R1501
L1511
5V_MNT/ERROR_OUT
R1503
OPT
0.1uF
C1500
3.3V_ON
SMW250-13
P1501
1
2
3
4
5
6
7
8
9
10
11
12
13
0
R1502
32/37/42_LPL
VAVS_ON/INV_ON
AC_DET
PWM_DIMM
+5V_ST
RL_ON/POWER_ON
OPT
C1507
1uF
50V
C1501
INV_BRI
0.1uF
C1508
L1512
OPT
R1500
KIA78R05F
IC1501
1
VIN
2
VC
3
VOUT
4
NC
5
GND1
6
GND2
47uF
16V
16V
C1518
0.1uF
C1516
0.1uF
C1517
C1517
+6.0V
5VDD_MSP4440
500-ohm
L1516
100uF
16V
16V
C1527
100uF
16V
16V
C1526
0.01uF
C1524
0.01uF
C1523
0.1uF
C1520
0.1uF
C1521
+5.0V
500-ohm
L1515
+5V_ST
SAM2333
LED1500
A2[GN]
C
A1[RD]
9VDD_MC3307
L1517
L1518
9VDD_CXA2069Q
EXT_VBR
0
R1528
OPT
EXT_VBR
0
R1527
32/37/42_LPL
4.7K
R1516
220uF
16V
16V
C1511
220uF
35V
35V
C1512
330uF
25V
25V
C1510
330uF
25V
25V
C1515
4.7uF
10V
10V
C1528
220uF
16V
16V
C1509
FL1505
FL1504
FL1500
FL1506
FL1501
FL1503
FL1502
0.1uF
C1529
0.1uF
C1530
0.1uF
C1531
0.1uF
C1532
0.1uF
C1533
POWER 10P / 13P
GND
19V
GND
GND
3.4V
19V
12V
6V
GND
GND
AC_DET
6V
Bri_ctrl
PWM_dimming
5VST
GND
3.3V_ON
5VST
RL_ON
Va/Invert_ON
5V Det/Error Out
GND
GND
PQ05DZ1U ??
Apr., 2007
P/NO : MFL38133701
Apr., 2007
P/NO : MFL38133701
Apr., 2007
P/NO : MFL38133701