DOWNLOAD LG 50PX950-UA / 50PX950-UF (CHASSIS:PU02B) Service Manual ↓ Size: 5.31 MB | Pages: 74 in PDF or view online for FREE

Model
50PX950-UA 50PX950-UF (CHASSIS:PU02B)
Pages
74
Size
5.31 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
50px950-ua-50px950-uf-chassis-pu02b.pdf
Date
PREV: LG 50PX950-SA (CHASSIS:PB01B) Service Manual

LG 50PX950-UA / 50PX950-UF (CHASSIS:PU02B) 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.
CHB
TW9910_DATA[0]
TW9910_DATA[7]
TW9910_DATA[6]
TW9910_DATA[2]
TW9910_DATA[3]
TW9910_DATA[4]
TW9910_DATA[3]
TW9910_DATA[7]
TW9910_DATA[1]
TW9910_DATA[1]
TW9910_DATA[0]
TW9910_DATA[5]
TW9910_DATA[2]
+3.3V
TW9910_DATA[6]
TW9910_DATA[5]
TW9910_DATA[4]
R1212
1K
CHB
C1223
0.1uF
CHB
R1217
22
CHB
L1201
BLM18PG121SN1D
CHB
R1202
100
CHB
L1208
BLM18PG121SN1D
CHB
CHB_VALID
012:AJ27;005:AD10
CHB_RESET
005:AD14
C1224
0.1uF
CHB
+3.3V_ADC
SCL2_3.3V
012:K24;012:AC7;007:AC12;005:Z4
R1211
1K
CHB
+3.3V_CHB
C1229
0.1uF
CHB
CHB_CLK_OUT 009:F28;012:AN17
C1228
0.1uF
CHB
+3.3V
R1209
22
OPT
+3.3V_VSB
TW9910_CLK012:AA17
+1.8V_ADC
+3.3V_ADC
C1249
0.1uF
CHB
C1212
0.1uF
CHB
C1201
10uF
10V
CHB
C1232
27pF
50V
CHB
IC1202
LG1140
CHB
1
VDDIO_1
2
D1_DATA4
3
D1_DATA3
4
D1_DATA2
5
VSSIO_1
6
D1_CLK
7
D1_DATA1
8
VDDCORE_1
9
VSSCORE_1
10
D1_DATA0
11
CI0_CLK
12
CI0_DATA
13
CI0_VALID
14
CI0_SOP
15
VDDIO_2
16
CI1_DATA
17
CI1_VAILD
18
CI1_CLK
19
CI1_SOP
20
SDA0
21
SCL0
22
VDDCORE_2
23
SCK
24
SS
25
VSSIO_2
26
MISO
27
MOSI
28
SPI_MODE[0]
29
VDDIO_3
30
SPI_MODE[1]
31
CTL2/FLAGC
32
VCC_4
33
PA0/INT0#
34
PA1/INT1#
35
VDDCORE_3
36
VSSCORE_2
37
PA4/FIFOADR0
38
TSVO0_CLK
39
VSSIO_3
40
TSVO0_SOP
41
TSVO0_DATA
42
IRQ_CHB_N
43
SPLL_AVSS
44
SPLL_AVDD
45
VDDIO_XTAL
46
XTAL27I
47
XTAL27O
48
VDDCORE_4
49
VSSCORE_3
50
TMOD
51
EXT_RESET_N
52
TRST
53
TCK
54
D1_DATA7
55
D1_DATA6
56
D1_DATA5
TW9910_DATA[0-7]
012:X24
IF_P_CHB
014:Y22
C1220
0.01uF
CHB
C1246
0.1uF
CHB
AR1202
22 CHB
C1225
0.1uF
CHB
C1237
0.1uF
CHB
L1200
BLM18PG121SN1D
CHB
R1204
0
CHB
VSB_DATA
012:AA15;012:AC3
C1206
10uF
10V
CHB
C1213
0.1uF
CHB
LD1200
SAM2333
CHB
A2[RD]
C
A1[GN]
C1215
0.1uF
CHB
C1222
0.1uF
CHB
R1213
5.1K
CHB
X1200
27MHz
CHB
C1248
0.1uF
CHB
SDA2_3.3V
012:K24;012:AH11;007:AC12;005:Z4
VSB_SOP
012:AA15;012:AE28
C1226
0.1uF
CHB
TW9910_DATA[0-7] 012:AA21
C1235
0.1uF
CHB
+3.3V_CHB
C1233
0.1uF
CHB
C1245
0.1uF
CHB
SDA2_3.3V
012:K24;012:AC7;007:AC12;005:Z4
R1219
100
CHB
C1240
0.1uF
CHB
+1.8V_ADC
C1234
0.1uF
CHB
VSB_VALID
012:AA15;012:AC3
AR1203
0
OPT
R1218
0
CHB
R1214
22
CHB
AR1205
22
CHB
SCL2_3.3V
012:K24;012:AH11;007:AC12;005:Z4
C1218
0.1uF
CHB
C1230
0.1uF
CHB
C1239
22pF
CHB
L1204
BLM18PG121SN1D
CHB
C1241
0.1uF
CHB
+3.3V_VSB
R1220
100
CHB
R1215
1M
CHB
VSB_CLK
012:AA16;012:AC3
SDA2_3.3V
012:AC7;012:AH11;007:AC12;005:Z4
VSB_VALID
012:AC3;012:AE27
IC1200
TW9910DANB2-GR 
CHB
1
VDDE_1
2
SCLK
3
SDAT
4
PDN
5
RSTB
6
TMODE
7
NC_1
8
AVD_1
9
YMUX3
10
YMUX2
11
YGND
12
YMUX1
13
YMUX0
14
AVS_1
15
CIN0
16
AVD_2
17
AVS_2
18
NC_2
19
VSS_1
20
VS
21
HS
22
MPOUT
23
CLKX2
24
VSSE_1
25
VDDE_2
26
VD[15]
27
VD[14]
28
VD[13]
29
VD[12]
30
VD[11]
31
NC_3
32
VDD
33
VD[10]
34
VD[9]
35
VD[8]
36
VD[7]
37
VD[6]
38
VD[5]
39
VD[4]
40
VD[3]
41
VD[2]
42
VSS_2
43
NC_4
44
VD[1]
45
VD[0]/SIAD0
46
VSSE_2
47
XTI
48
XTO
R1208
22
OPT
IC1201
LGDT3305
CHB
1
NC_1
2
VINA2
3
VINA1
4
INCAP
5
VSSAAD10A
6
I2CSEL
7
ANTCON
8
VDD_1
9
I2CRPT_SCL
10
I2CRPT_SDA
11
IFOUT
12
RFOUT
13
TPERR
14
VDD33_1
15
TPVALID
16
TPDATA[0]
17
VSS33_1
18
TPDATA[1]
19
TPDATA[2]
20
TPDATA[3]
21
TPDATA[4]
22
TPDATA[5]
23
TPDATA[6]
24
TPDATA[7]
25
TPCLK
26
TPSOP
27
NIRQ
28
SDA
29
VDD33_2
30
SCL
31
VSS_1
32
VDD_2
33
VSS_2
34
VSS33_2
35
PLLAVDD
36
PLLAVSS
37
NRST
38
OPM
39
VDD33_3
40
NC_2
41
VSS33_3
42
XTALI
43
XTALO
44
VSS_3
45
XM
46
VDD_3
47
VSSDAD10
48
VCCAAD10A
CVBS_CHB
014:AK22
+3.3V_VSB
VSB_CLK
012:AA16;012:AE28
CHB_VALID
012:AN17;005:AD10
R1216
1K
CHB
R1203
4.7K
CHB
C1214
0.1uF
CHB
VSB_DATA
012:AA15;012:AE27
TW9910_RESET
005:AD18
SCL2_3.3V
012:AC7;012:AH11;007:AC12;005:Z4
VSB_VALID
012:AA15;012:AE27
R1223
1M
CHB
C1238
22pF
CHB
+3.3V_ADC
AR1204
0
OPT
C1205
10uF
10V
CHB
R1200
100
CHB
C1236
0.1uF
CHB
R1207
1K
CHB
R1210
100
CHB
CHB_CLK_OUT 009:F28;012:AJ28
VSB_SOP
012:AC3;012:AE28
C1210
0.1uF
CHB
L1202
BLM18PG121SN1D
CHB
R1201
100
CHB
X1201
25MHz
CHB
VSB_DATA
012:AC3;012:AE27
+1.2V_VSB
CHB_DATA_OUT
009:F28;012:AN17
C1208
0.1uF
CHB
R1222
100
CHB
L1203
BLM18PG121SN1D
CHB
C1231
27pF
50V
CHB
CHB_DATA_OUT
009:F28;012:AJ27
C1221
0.1uF
CHB
+1.8V_CHB
AR1200
22
CHB
CHB_SOP_OUT 009:F28;012:AJ28
C1204
10uF
10V
CHB
CHB_SOP_OUT 009:F28;012:AN17
VSB_CLK
012:AC3;012:AE28
TW9910_CLK
012:V20
C1209
0.1uF
CHB
C1219
0.01uF
CHB
R1221
100
CHB
AR1201
22
CHB
+1.8V_CHB
R1205
1K
CHB
L1207
BLM18PG121SN1D
CHB
VSB_RESET
005:AD14
C1207
0.1uF
CHB
VSB_SOP
012:AA15;012:AC3
C1227
0.1uF
CHB
+1.8V_TU
C1200
10uF
10V
CHB
C1211
0.1uF
CHB
+1.8V_ADC
X1202
27MHz
CHB
C1242
0.1uF
CHB
C1243
0.1uF
CHB
IF_N_CHB
014:Y22
R1206
1M
CHB
IF_AGC_CHB
014:Y20
C1247
33pF
CHB
C1244
33pF
CHB
C1217
30pF
CHB
C1216
30pF
CHB
C1203
1uF
CHB
C1202
1uF
CHB
0x88
Put near to IC1201
0xF2
0x1C
Put near to IC501
CHB
EAX61557901
12      14
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.
Wireless
SCL3_3.3V
SDA3_3.3V
IR_PASS
WIRELESS_DETECT
WIRELESS_DL_RX
JK1300
KJA-PH-3-0168
14
GND_3
13
I2C_SDA
5
VCC[24V/20V/17V]_5
12
I2C_SCL
11
GND_2
2
VCC[24V/20V/17V]_2
19
GND_5
18
IR
10
RESET
4
VCC[24V/20V/17V]_4
1
VCC[24V/20V/17V]_1
17
GND_4
9
GND_1
8
INTERRUPT
3
VCC[24V/20V/17V]_3
16
UART_TX
7
DETECT
6
VCC[24V/20V/17V]_6
15
UART_RX
20
GND_6
21
SHIELD
+3.3V
WIRELESS_SDA
WIRELESS_SCL
WIRELESS_DL_TX
R1314
10K
WIRELESS_SDA
R1316
0
R1315 0
WIRELESS_SCL
R1313
1K
R1300
10K
C1300
0.1uF
50V
P_17V
WIRELESS_PWR_EN
C1302
0.01uF
50V
L1300
BLM18PG121SN1D
R1303
22K
C1301
2.2uF
Q1300
E
B
C
R1306
0
1/4W
3216
R1304
2.2K
+3.3V
R1317
4.7K
R1318
4.7K
Q1301
AO3407A
G
D
S
R1301
10K
OPT
FDV301N
Q1303
OPT
G
D
S
FDV301N
Q1302
OPT
G
D
S
+3.3V
SDA3_3.3V
WIRELESS_SCL
SCL3_3.3V
WIRELESS_SDA
13      14
Wireless
EAX61557901
From wireless_I2C to micom I2C
Wireless power
* Address : 0X20
WIRELESS READY MODEL
WIRELESS I2C LEVEL SHIFTER
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.
TUNER
+5V_TU
R1439
82
R1426
3.3K
+3.3V_TU
R1413
0
C1425
0.1uF
50V
CHB
R1404
10
C1411
0.1uF
16V
SDA0_3.3V
+1.8V_TU
C1419
10uF
10V
CHB
M_IF_AGC
C1428
100pF
50V
CHB
R1434
200
CHB
C1409
100pF
50V
SCL0_3.3V
C1412
47pF
50V
CHB
C1417
0.1uF
16V
C1429
0.1uF
50V
CHB
+3.3V
M_IF_N
SCL0_3.3V
C1413
0.1uF
16V
CHB
D1402
100V
MMSD4148T1G
CHB
R1408
CHB
100
C1407
0.1uF
16V
+3.3V_TU
C1426
0.1uF
50V
CHB
+3.3V_TU
Q1401
ISA1530AC1
E
B
C
R1425
3.3K
TU_CVBS
R1432
1K
OPT
IC1401
AP1117E18G-13 
CHB
2
OUT
3
IN
1
ADJ/GND
C1422
47pF
50V
+3.3V_TU
R1406
100
CHB
+3.3V_TU
R1407
100K
CHB
R1401
0
CHB
TU_SIF
M_IF_P
R1430
1K
OPT
R1412
0
+3.3V_TU
R1424
100
C1423
10uF
10V
CHB
C1403
22uF
16V
+32V_TU
C1418
0.1uF
16V
CHB
C1421
47pF
50V
+1.8V_TU
+3.3V_TU
R1441
10K
1/16W
5%
CHB
IF_AGC_CHB
R1433
1K
OPT
C1427
0.1uF
50V
CHB
TUNER_SUB_RESET
L1403
10uH
CHB
R1429
1K
OPT
C1400
22uF
16V
OPT
+32V_TU
C1424
100pF
50V
R1443
39K
1/10W
CHB
R1427
0
CHB
C1405
0.1uF
16V
R1437
200
CHB
R1405
0
C1408
100pF
50V
CVBS_CHB
C1414
47pF
50V
CHB
+5V_TU
D1400
100V
MMSD4148T1G
CHB
R1414
100K
TUNER_MAIN_RESET
+1.2V_VSB
R1418
0
CHB
D1401
100V
MMSD4148T1G
CHB
R1423
100
R1431
4.7K
IF_P_CHB
R1417
0
NON_CHB
R1428
0
C1415
0.1uF
16V
IF_N_CHB
R1409
CHB
100
R1442
220K
1/16W
CHB
Q1402
ISA1530AC1
E
B
C
+3.3V_TU
Q1400
ISA1530AC1
CHB
E
B
C
R1410
100
L1401
BLM18PG121SN1D
C1410
0.1uF
16V
SDA0_3.3V
R1415
3.3K
OPT
R1416
3.3K
OPT
+5V_TU
+5V_TU
+5V_TU
+5V_TU
C1438
0.1uF
50V
CHB
L1405
500
CHB
L1406
BLM18PG121SN1D
CHB
C1435
2.2uF
16V
CHB
IC1403
AZ1117H-1.2TRE1 
CHB
ADJ/GND
OUT
IN
22uF
C1437
10V
CHB
C1436
2.2uF
16V
CHB
C1431
2.2uF
16V
22uF
C1432
10V
L1404
500
C1433
22uF
10V
L1402
BLM18PG121SN1D
IC1400
AP1117EG-13 
ADJ/GND
OUT
IN
+1.26V_TU
C1434
0.1uF
50V
C1430
2.2uF
16V
+1.26V_TU
+3.3V_TU
R1403
1.2K
+3.3V_TU
TU1400
TDVJ-H001F
NON_CHB
14
3.3V
13
1.2V
5
N.C
12
GND
11
CVBS
2
N.C
10
N.C
4
N.C
1
N.C
17
IF_N
9
SIF
8
N.C
3
+5V
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
IF_P
19
SHIELD
R1435
470
R1402
0
R1438
200
1/8W
R1436
200
1/8W
Q1403
ISA1530AC1
OPT
E
B
C
+5V_TU
CVBS_CHB_SEARCH
R1444
200
OPT
R1445
200
OPT
R1421
0
CHB
R1411
0
IC1402
NCP1406SNT1G
CHB
3
VDD
2
FB
4
GND
1
CE
5
LX
R1446
0
OPT
L1407
CM2012FR22KT
OPT
L1408
CM2012FR22KT
OPT
C1439
33pF
50V
OPT
L1409
CM2012FR33KT
OPT
R1419
300
CHB
R1420
300
CHB
C1420
1uF
10V
CHB
R1422
0
CHB
C1402
10pF
50V
CHB
C1401
10pF
50V
CHB
TU1401
TDTD-V036F
CHB
14
CVBS[MAIN]
13
SIF
5
IF_N[SUB]
12
32V
11
5V
2
SCL[SUB]
19
IF_AGC[MAIN]
18
RESET[MAIN]
10
SDA[MAIN]
4
RESET[SUB]
1
1.8V
17
3.3V[MAIN]
9
SCL[MAIN]
8
CVBS[SUB]
3
SDA[SUB]
16
1.2V[MAIN]
7
IF_AGC[SUB]
6
IF_P[SUB]
15
GND
22
SHIELD
20
IF_N[MAIN]
21
IF_P[MAIN]
60mA
CHB OPTION
CHB OPTION
CHB OPTION
LGIT CHB/NON_CHB CAN H/N TUNER for US&KOR
EAX61557901
14      14
TUNER
R1
VOUT = VREF *(1+R2/R1)
R2
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