DOWNLOAD LG 42LN541C (CHASSIS:LA3AA) Service Manual ↓ Size: 7.46 MB | Pages: 34 in PDF or view online for FREE

Model
42LN541C (CHASSIS:LA3AA)
Pages
34
Size
7.46 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42ln541c-chassis-la3aa.pdf
Date

LG 42LN541C (CHASSIS:LA3AA) Service Manual ▷ View online

THERMAL
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.
FE_TS_DATA[4]
FE_TS_DATA[6]
FE_TS_DATA[5]
FE_TS_DATA[3]
FE_TS_DATA[7]
FE_TS_DATA[0]
FE_TS_DATA[2]
FE_TS_DATA[1]
C1017
5pF
50V
ASIA
R1003
0
NON_BR
C1009
100pF
50V
R1027
4.7K
TU_BUFFER
C1004
0.1uF
16V
NON_ASIA
FE_TS_DATA[0-7]
TU1001
TDSN_B001F
SI2176_BR_2INPUT_H
1
RF_S/W_CTL
2
RESET
3
SCL
4
SDA
5
+B1[3.3V]
6
SIF
7
+B2[1.8V]
8
CVBS
9
NC_1
10
NC_2
11
NC_3
12
+B3[3.3V]
13
+B4[1.23V]
14
NC_4
15
GND
16
ERROR
17
SYNC
18
VALID
19
MCLK
20
D0
21
D1
22
D2
23
D3
24
D4
25
D5
26
D6
27
D7
28
SHIELD
A1
A1
B1
B1
R1002
0
NON_BR
R1013
10K
FULL_NIM_BCD
L1002
FULL_NIM
+5V_Normal
R1005
10K
FULL_NIM_OPT
C1003
100pF
50V
L1003
MLB-201209-0120P-N2
R1024
0
NON_ASIA
R1022
1K
R1019
1K
R1009
1
1/16W
5%
R1023
0
NON_ASIA
IC1001
AZ1117BH-1.8TRE1
1
ADJ/GND
2
OUT
3
IN
R1032
82
C1018
0.1uF
16V
FULL_NIM
C1002
0.1uF
16V
FULL_NIM
R1030
470
TU_BUFFER
R1008
100
IF_N_MSTAR
R1011
20K
1005
FULL_NIM_BCD
R1029
220
TU_BUFFER
R1017
0
ASIA
R1010
100K
C1001
0.1uF
16V
Q1002
MMBT3906(NXP) 
TU_BUFFER
E
B
C
C1015
10uF
10V
+3.3V_TU
TU_SCL
+1.2V/+1.8V_TU
C1011
0.1uF
16V
C1012
0.1uF
16V
NON_BR
FE_TS_VAL_ERR
R1014
33
C1024
22uF
10V
R1020
3.3
ASIA
R1004
10K
FULL_NIM
C1008
10uF
6.3V
TU_SIF
C1025
0.1uF
16V
R1031
220
TU_BUFFER
+3.3V_TU
C1019
18pF
50V
TU1002-*1
TDSS-H101F 
SI2176_ATSC_1INPUT_H
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
A1
A1
B1
B1
R1026
0
TU_NON_BUFFER
R1028
1K
OPT
R1025
0
TU_NON_BUFFER
C1021
10uF
10V
FULL_NIM
+3.3V_TU
+3.3V_TU
R1021
0
ASIA
RF_SWITCH_CTL
+1.2V/+1.8V_TU
C1020
5pF
50V
ASIA
+3.3V_TU
C1007
0.1uF
16V
R1016
3.3
ASIA
FE_TS_CLK
Q1001
MMBT3906(NXP) 
TU_BUFFER
E
B
C
R1001
0
RF_SW_OPT
C1010
0.1uF
16V
+1.23V_TU
L1001
120
FULL_NIM
R1007
100
NON_BR
R1012
11K
FULL_NIM_BCD
C1016
18pF
50V
+3.3V_Normal
IC1002
AP2132MP-2.5TRG1
FULL_NIM_BCD
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
IF_P_MSTAR
C1005
0.1uF
16V
+3.3V_TU
TUNER_RESET
C1013
0.1uF
16V
C1026
22uF
10V
R1006
0
FULL_NIM_BCD
R1018
2K
OPT
C1027
0.1uF
16V
FE_TS_SYNC
+1.23V_TU
TU1002
TDSS-G102D
SI2176_DVB_1INPUT_H
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC
9
IF_AGC
8
CVBVS
3
SCL
7
+B2[1.8V]
6
SIF
12
SHIELD
A1
A1
B1
B1
C1006
22uF
25V
C1004-*1
0
ASIA
+3.3V_TU
TU_CVBS
TU_SDA
R1015
33
C1014
0.1uF
16V
IF_AGC_MAIN
TU1002-*2
TDSS-H101F(B)
TDSS-H101F(B)
5
+B1[3.3V]
11
DIF[N]
2
RESET
10
DIF[P]
4
SDA
1
NC_1
9
IF_AGC
8
CVBS
3
SCL
7
+B2[1.8]
6
SIF
12
SHIELD
A1
A1
B1
B1
GP4R_GLOBAL_TUNER_BLOCK
TUNER
10
LA2AW
2012.09.11
Close to the tuner
BCD Vo=0.6*(1+R1/R2)
close to the tuner pin, add,09029
close to TUNER
TJ  Vo=0.8*(1+R1/R2)
should be guarded by ground
R1
380mA
1. should be guarded by ground
2. No via on both of them
3. Signal Width >= 12mils
   Signal to Signal Width = 12mils
   Ground Width >= 24mils
add,0929
Size change,0929
R2
60mA
Pull-up can’t be applied 
because of MODEL_OPT_2
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.
LVDS_LARGE
11
RXA4+
C1103
10uF
16V
OPT
RXB1-
RXA3-
RXA0+
RXB3-
PANEL_VCC
RXA2+
C1101
1000pF
50V
OPT
R1108
10K
OPT
RXA0-
R1101
10K
AUO_GND
RXA0+
RXB4-
RXA1+
RXA0-
RXACK-
R1106
0
HD_GND_2pin
RXA2-
RXACK+
C1104
1000pF
50V
OPT
C1100
10uF
16V
OPT
RXA1-
P1100
FI-RE51S-HF-J-R1500 
FHD
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
R1107
3.3K
OPT
+3.3V_Normal
C1105
0.1uF
16V
HD
RXA1+
RXB1+
RXB0-
RXACK-
RXA2+
P1101
FF10001-30
HD
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
RXA2-
PANEL_VCC
RXA4-
RXACK+
RXB0+
RXA1-
RXA3-
C1102
0.1uF
16V
FHD
RXA3+
RXB4+
RXBCK-
RXB3+
RXA3+
RXB2+
RXB2-
RXBCK+
R1102
3.3K
OPT
R1103
10K
OPT
+3.3V_Normal
R1100
0
PSU_T120_LGD
PWM_DIM
OPC&SCANNING_CTRL
R1104
3.3K
OPT
+3.3V_Normal
R1105
10K
OPT
L1100
70-ohm
FHD
L1101
BLM18SG700TN1D
70-ohm
HD
AUO_GND/LGD_NC
LVDS_SEL
[30Pin LVDS Connector]
 (For HD 60Hz_Normal)
LVDS for large inch
[51Pin LVDS Connector]
 (For FHD 60Hz)
RXB3-
RXA4-
RXA0+
RXB4-
RXB1+
RXB1+
RXA4+
RXB3-
RXA4+
RXA2-
RXB3+
RXB2+
MIRROR
FOR FHD REVERSE(8bit)
RXA0+
RXA3-
RXB0-
RXA2+
RXACK-
RXA1+
RXA4-
RXB1+
RXB3-
RXA2+
RXB2-
RXB4+
RXB3-
RXB0+
MIRROR
RXB3+
RXB2-
RXBCK+
RXACK-
RXB3+
RXB1+
RXA1+
RXA0-
RXB2-
RXB4+
RXA2+
RXA2+
RXA4+
RXB1-
RXB0-
RXA3+
RXA0-
RXB4-
RXBCK-
RXB1-
RXA1-
RXA4-
RXA3-
RXA1+
RXA0-
RXA4-
RXB2+
RXA2-
RXB4-
RXA3-
RXACK+
RXA4+
RXB1-
RXB3+
RXA4-
RXB1-
Pol-change
Shift
RXB2-
RXA2+
RXB4+
RXACK-
RXA1-
RXB4+
RXB0+
RXB3-
RXA1-
RXA0+
RXA3-
RXBCK+
RXA0-
RXB0-
RXB1+
RXA0+
RXBCK+
RXA0-
RXBCK+
RXACK-
RXA2-
RXA4+
RXACK+
RXA2-
RXB0-
RXB1-
RXB3+
RXBCK+
RXB3-
RXB0-
RXB2+
RXB0-
RXB2-
RXA3+
RXACK-
RXB0+
RXB2+
RXA3+
RXB0+
RXA1-
RXA4-
RXB4+
RXA2-
RXA2+
RXA0+
RXB1-
RXB2-
RXA3+
RXBCK+
RXB4-
RXB2+
RXA3+
RXB4-
RXB2+
RXBCK-
RXA1-
RXA0+
Change in S7LR
RXBCK-
RXA4+
Pol-change
RXA0-
RXB3-
RXB4-
RXACK+
RXB0+
RXB4+
RXBCK-
RXACK+
RXB0+
RXA3-
RXA3+
Change in S7LR
RXBCK-
RXA3-
RXBCK-
RXACK+
RXA4-
RXB0-
RXACK-
RXA1+
RXACK-
RXB1+
RXA1-
RXA3+
RXA2-
RXB4-
RXA3-
RXA0-
RXB1-
RXBCK-
RXBCK+
RXA1+
RXB3+
RXB3+
RXA1-
RXB2-
RXB1+
RXA2-
RXB4+
RXACK+
RXA0+
RXA1+
RXA4+
FOR FHD REVERSE(10bit)
RXB2+
RXB0+
RXA1+
RXACK+
RXA2+
LVDS_SEL
SCANNING_EN
LA2AW
2012.09.11
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