LG 42LY99-ZC (CHASSIS:LD75C) Service Manual ▷ View online
100pF
C1333
0.01uF
C1312
43
R1304
100
R1314
22uF
16V
C1313
0.01uF
C1330
100
R1309
2SC3875S
Q1300
43
R1305
0
R1310
0.01uF
C1322
0.47uF
C1321
10uF
25V
25V
C1344
3.3uF
50V
C1341
100
R1308
+9V_MSP4450
22uF
16V
16V
C1325
OPT
C1324
0.01uF
C1340
470pF
C1338
0.47uF
C1320
24K
R1301
0.47uF
C1335
100
R1313
1.5K
R1303
56pF
C1317
0.47uF
C1329
100
R1311
100uF
16V
16V
C1343
0.1uF
C1316
100
R1307
OPT
R1306
0.47uF
C1326
0.1uF
C1327
62K
R1300
470
R1302
0.47uF
C1332
100
R1312
0.47uF
C1346
0.47uF
C1347
TV_ROUT
0.1uF
C1311
TV_LOUT
6800pF
C1307
2K
R1322
2SC3875S
Q1304
+9V_MSP4450
2SC3875S
Q1302
2K
R1321
4.7uF 50V
C1310
1K
R1315
4.7uF 50V
C1309
1K
R1316
4.7K
R1318
470K
R1323
2SC3875S
Q1303
2SC3875S
Q1301
6800pF
C1308
4.7K
R1317
470K
R1324
10uF
25V
25V
C1345
AV_ROUT
AV_LOUT
SDA_5V
SCL_5V
0
R1319
0
R1320
0
R1327
SPDIF_MSP_OUT
220
R1328
1/10W
1
5%
R1329
1/10W
1
5%
R1330
+3.3V_PLL
PLL_GND
10K
R1331
SW_RESET
SCL
SDA
1000pF
50V
C1354
MS_SCK
MS_LRCK
MS_LRCH
MS_SCK
MS_LRCK
MS_LRCH
+3.3V_PLL
PLL_GND
1uF
25V
C1303
1uF
25V
C1300
0 . 1 u F
50V
50V
C1352
0.1uF
50V
C1304
0 . 1 u F
50V
50V
C1359
0 . 1 u F
50V
50V
C1305
0.1uF
50V
C1301
0 . 1 u F
50V
50V
C1351
0 . 1 u F
50V
50V
C1362
0 . 1 u F
50V
50V
C1363
0 . 1 u F
50V
50V
C1364
0 . 1 u F
50V
50V
C1365
0 . 1 u F
50V
50V
C1366
0 . 1 u F
50V
50V
C1367
0 . 1 u F
50V
50V
C1368
0 . 1 u F
50V
50V
C1369
4.7K
R1345
4.7K
R1346
CLK
CLK
1/10W
39
5%
R1347
1/10W
39
5%
R1348
1/10W
39
5%
R1349
1/10W
39
5%
R1350
1/10W
12
5%
R1351
1/10W
12
5%
R1352
1/10W
12
5%
R1354
1/10W
12
5%
R1353
1/10W
12
5%
R1355
1/10W
12
5%
R1356
1/10W
12
5%
R1357
1/10W
12
5%
R1358
PLL_GND
100pF
C1356
220pF
C1357
3.9K
R1338
OPT
READY
R1341
MUTE_MAIN
0
R1359
0.1uF
C1373
1200pF
C1358
0
R1360
0
R1361
330pF
50V
50V
C1360
330pF
50V
50V
C1361
0
R1362
1000uF
25V
C1302
220
R1334
220
R1333
220
R1332
750
R1366
750
R1364
750
R1365
3.3uF
50V
50V
C1319
10uF
16V
16V
C1350
3.3K
R1363
P_3.3V
P_3.3V
P_3.3V
P_3.3V
OPT
C1323
0 . 1 u F
C1355
KRA102S
Q1305
SMW250-04
P1301
1
R-
2
R-
3
R+
4
R+
SMW250-03
P1300
1
L -
2
.
3
L+
TP1348
TP1349
TP1350
TP1310
TP1311
TP1312
TP1313
TP1314
TP1315
TP1316
TP1317
TP1329
TP1330
TP1331
TP1332
TP1333
TP1336
TP1337
TP1338
TP1339
TP1342
TP1343
TP1344
TP1345
JP1300
JP1302
JP1301
JP1303
R_GND
L_GND
HH-1M3216-501
L1314
HH-1M3216-501
L1315
STA335BW
IC1301
26
PLL_GND
27
XTI
28
BICKI
29
LRCKI
30
SDI_12
31
RESET
32
INT_LINE
33
SDA
34
SCL
35
GND_DIG_2
36
VDD_DIG_2
17
OUT3B/DDX3B
3
TEST_MODE
6
OUT2B
16
CONFIG
15
VDD
14
GND_REG
13
OUT1A
12
GND1
11
VCC1
10
OUT1B
9
OUT2A
8
VCC2
7
GND2
4
VSS
5
VCC_REG
2
SA
21
VDD_DIG_1
1
GND_SUB
20
TWARN/OUT4B
19
EAPD/OUT4A
18
OUT3A/DDX3A
23
PWRDN
24
PLL_VDD
25
PLL_FILTER
22
GND_DIG_1
HU-1M2012-121
L1310
HU-1M2012-121
L1311
HU-1M2012-121
L1312
HU-1M2012-121
L1309
3pF
50V
C1314
3pF
50V
C1315
18.432MHz
X1300
P_+19V
GND
GND
2200pF
50V
C1353
2200pF
50V
C1306
3 . 3
R1367
STA335BW-3.3OHM
3 . 3
R1368
STA335BW-3.3OHM
0 . 4 7 u F
50V
50V
C1370
0 . 4 7 u F
50V
50V
C1371
22uH
L1304
22uH
L1306
22uH
L1305
22uH
L1307
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.
MSP4450K-VK-E8-500
IC1402
1
NC_1
2
I2C_CL
3
I2C_DA
4
I2S_CL
5
I2S_WS
6
I2S_DA_OUT
7
I2S_DA_IN1
8
I2S_DEL_IN
9
I2S_DEL_OUT
10
I2S_DEL_CL
11
I2S_DEL_WS
12
DVSUP_1
13
DVSUP_2
14
DVSS_1
15
DVSS_2
16
I2S_DA_IN2
17
I2S_CL3
18
I2S_WS3
19
RESETQ
20
I2S_DA_IN3
21
I2S_DA_IN4
22
NC_2
23 DACA_R
24 DACA_L
25
VREF2
26 DACM_R
27 DACM_L
28 DACM_C
29 DACM_SUB
30 DACM_SR
31 DACM_SL
32
NC_3
33 SC2_OUT_R
34
SC2_OUT_L
35
VREF1
36 SC1_OUT_R
37
SC1_OUT_L
38 CAPL_A
39 AHVSUP
40 CAPL_M
41
SC3_OUT_R
42
SC3_OUT_L
43
AHVSS_1
44
AHVSS_2
45
AGNDC
46
NC_4
47
NC_5
48
SC4_IN_L
49
SC4_IN_R
50
SC3_IN_L
51
SC3_IN_R
52
SC2_IN_L
53
SC2_IN_R
54
SC1_IN_L
55
SC1_IN_R
56
VREFTOP
57
SC5_IN_L/MONO_IN
58
SC5_IN_R
59
AVSS_1
60
AVSS_2
61
AVSUP_1
62
AVSUP_2
63
ANA_IN1+
64
ANA_IN-
65
ANA_IN2+
66
TESTEN
67
XTAL_IN
68
XTAL_OUT
69
TP
70
AUD_CL_OUT
71
NC_6
72
NC_7
73
NC_8
74
NC_9
75
NC_10
76
SPDIF_OUT
77
DCTRI/O_1
78
DCTRI/O_0
79
ADR_SEL
80
STANDBYQ
+5V_MSP4450
0.1uF
C1342
RLZ8.2B-TE11
ZD1300
56pF
C1318
500-ohm
HH-1M3216-501
L1300
500-ohm
HH-1M3216-501
L1302
500-ohm
HH-1M3216-501
L1303
500-ohm
HH-1M3216-501
L1301
0
R1367-*1
STA335BW-0OHM
0
R1368-*1
STA335BW-0OHM
PCMDATA_MUX
COMP_RIN
SIF
LRCLK_MUX
PC_AUDIO_R
SW_RESET
AM_AUDIO
PC_AUDIO_L
COMP_LIN
SCLK_MUX
MUTE_LINE
TP1357
TP1358
TP1360
TP1361
TP1362
TP1387
TP1468
TP1525
13.AUDIO BLOCK
13
14
SOUND BLOCK
EUROPASS3
2 0 0 7 . 0 6 . 0 7
0.1uF
C1413
6800pF
C1402
AV_LOUT
220
R1412
82pF
50V
C1421
0.1uF
C1412
0.47uF
C1439
GND
100
R1419
0
R1413
0
R1410
4.7K
R1455
2SC3875S
Q1402
E
B
C
0.47uF
C1422
GND
MAIN_V/YOUT
JP1405
0.01uF
C1404
47uF
16V
C1410
JP1401
0.01uF
C1411
100
R1423
1K
R1405
470K
R1454
100
R1417
1K
R1404
GND
0.47uF
C1418
100
R1402
JP1402
AV_ROUT
4.7K
R1401
100
R1414
0.47uF C1426
0.1uF
C1409
1.5K
R1456
GND
6800pF
C1403
4.7uF
50V
C1401
JP1403
1.5K
R1400
100
R1422
4.7uF
50V
C1400
0.47uF
C1423
100
R1418
220
R1416
CXA2069Q
IC1400
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
100
R1421
2SC3875S
Q1404
E
B
C
0.47uF
C1441
470K
R1453
0.47uF
C1419
22uF
16V
C1407
2.2uF
C1420
2.2uF C1428
2.2uF
C1440
220
R1411
100
R1420
0.47uFC1429
2SC3875S
Q1401
E
B
C
GND
100
R1403
MAIN_COUT
100uF
16V
16V
C1408
2SC3875S
Q1400
E
B
C
220
R1415
150
R1409
2SA1504S
Q1403
E
B
C
0
R1407
0
R1408
0
R1406
100
R1452
DTV/MNT_LOUT
DTV/MNT_ROUT
DTV/MNT_VOUT
SCL_5V
SDA_5V
JP1408
JP1409
JP1407
100K
R1463
+5V_MSP4450
2.2uF C1445
0.47uF C1444
2.2uF
C1449
0.47uF
C1448
0.47uF
C1447
1K
R1467
SCART2_ID
SCART2_VIN
SCART2_LIN
SCART2_RIN
+9V_MSP4450
JP1406
SIDE_YIN
SIDE_CIN
SIDE_RIN
SIDE_LIN
SIDE_VIN
SIDE_S_SW
EYE
9V_EYE
0.1uF
C1450
SIDE_S_SW
SIDE_CIN
SIDE_RIN
SIDE_YIN
SIDE_LIN
SIDE_VIN
0.1uF
C1451
100
R1433
1.2K
R1430
1.2K
R1466
1.2K
R1431
1.2K
R1436
1.2K
R1438
1.2K
R1468
1K
R1429
100
R1465
100
R1439
100
R1460
100
R1461
100
R1462
+9V_MSP4450
9V_EYE
SMW200-14
6602T20008N
P1400
1
YIN
2
GND
3
CIN
4
SIDE_S_SW
5
RIN
6
GND
7
LIN
8
GND
9
VIN
10
GND
11
EYE
12
GND
13
9V_EYE
14
GND
TP1435
TP1436
TP1437
TP1438
TP1439
TP1440
TP1441
TP1442
TP1443
TP1444
TP1445
TP1446
TP1447
TP1448
TP1449
TP1450
TP1451
TP1456
TP1457
TP1458
TP1460
TP1461
TP1463
TP1464
TP1465
TP1466
500-ohm
HH-1M3216-501
DIGITAL_EYE
L1402
HH-1M3216-501
L1401
HH-1M3216-501
L1403
HB-1M2012-800JT
L1412
HB-1M2012-800JT
L1413
15pF
50V
50V
C1452
15pF
50V
50V
C1453
2.2uF
C1442
JP1410
GND
SCART1_LIN
SCART1_RIN
TV_ROUT
TU_MAIN
SCART1_VIN
SCART1_ID
TV_LOUT
DTV_LOUT
DTV_ROUT
SP_CVBS
GND
GND
TP1467
TP1469
TP1516
TP1517
TP1518
TP1527
TP1528
TP1529
TP1530
TP1531
TP1556
TP1557
VOUT1
LOUT2
MONITOR/OUT
AUDIO_GND
SCL
Y4
S2-4
L2
CVBS/S
CIN1
RV5
AV-FRONT
SUB/OUT
LOUT3
VOUT3
ROUT1
VCC
SCART-2
Y1
C1
L1
YIN1
RTV
S2-2
S-3
C3
ROUT2
V6
RV3
ADR
C4
S-4
TU-PIP/IN
COUT1
S-2
MAIN/OUT
TRAP2
YOUT3
LV6
S2-1
DC-OUT
[ Y / C V B S 2 . 2 u F : 2 0 1 2 T y p e ]
Y3
Side AV
ROUT3
TU-MAIN/IN
TRAP1
RV6
S2-3
AV1
V5
LOUT1
S1
AV-REAR
C2
TV
R2
V4
VGND
LV4
R1
COUT2
V/YOUT2
BIAS
COUT3
RV4
MUTE
LV3
LTV
LV5
V2
SDA
SCART1 Input
SCART-1
Y2
V3
MAIN OUT
YOUT1
A n a l o g T u n e r
SCART2
MNT/DTV OUT
I n p u t
F r o n t A V ( S i d e A V )
SCART2 Input
AV2
& DIGITAL EYE
14.AV SWITCH
CXA2069Q
EUROPASS3
14
14
2 0 0 7 . 0 6 . 0 7
P l a c e c l o s e t o P 1 4 0 0
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.
Sep., 2007
P/NO : MFL39970803