DOWNLOAD LG 42LE5500 / 42LE5550 (CHASSIS:LJ03D) Service Manual ↓ Size: 13.1 MB | Pages: 52 in PDF or view online for FREE

Model
42LE5500 42LE5550 (CHASSIS:LJ03D)
Pages
52
Size
13.1 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42le5500-42le5550-chassis-lj03d.pdf
Date
PREV: LG 42LE5500 / 42LE550N / 42LE5510 / 42LE5800 / 42LE5810 / 42LE5900 / 42LE5910 (CHASSIS:LD03E) Service Manual

LG 42LE5500 / 42LE5550 (CHASSIS:LJ03D) 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.
09/10/19
HP/COMP/REAR AV(NON_EU_CN)
11
GP2_BCM
HP_LOUT
R1113
0
C1112
100pF
50V
R1105
0
R1116
1K
+3.3V_NORMAL
C1123
27pF
50V
R1124
10K
OPT
D1102
5.6V
C1101 1uF
25V
C1105
47pF
50V
D1110
5.6V
D1111
5.5V
SC1_L_IN
C1104
100pF
50V
C1124
100pF
C1120
27pF
50V
L1102
270nH
D1114
5.6V
R1119
1K
D1105
5.6V
R1125
10K
HP_ROUT
D1100
5.6V
SC1_R_IN
C1117
1uF
25V
R1114
0
SC1_R
C1114
1uF
25V
JK1100
PPJ237-01
5J
[GN3]O-SPRING
6J
[GN3]E-LUG
4J
[GN3]CONTACT
7K
[BL3]E-LUG-S
5K
[BL3]O-SPRING
7L
[RD3]E-LUG-S
5L
[RD3]O-SPRING_1
5M
[WH3]O-SPRING
4N
[RD3]CONTACT
5N
[RD3]O-SPRING_2
6N
[RD3]E-LUG
6D
[GN2]E-LUG
5D
[GN2]O-SPRING
4D
[GN2]CONTACT
7E
[BL2]E-LUG-S
5E
[BL2]O-SPRING
7F
[RD2]E-LUG-S
5F
[RD2]O-SPRING_1
5G
[WH2]O-SPRING
4H
[RD2]CONTACT
5H
[RD2]O-SPRING_2
6H
[RD2]E-LUG
6A
[YL1]E-LUG
5A
[YL1]O-SPRING
4A
[YL1]CONTACT
5B
[WH1]O-SPRING
4C
[RD1]CONTACT
5C
[RD1]O-SPRING
6C
[RD1]E-LUG
R1103
470K
L1103
270nH
C1125
100pF
+3.3V_NORMAL
R1108
470K
R1117
0
D1112
5.5V
C1100
100pF
50V
C1113
1uF
25V
D1107
5.5V
C1130
1000pF
50V
OPT
R1100
0
OPT
COMP2_DET
D1104
5.6V
SIDE_HP_MUTE
C1122
27pF
50V
COMP2_Pb
R1110
470K
D1109
5.6V
JK1101
KJA-PH-0-0177
3
DETECT
4
L
5
GND
1
R
R1111
470K
Q1100
MMBT3904-(F)
OPT
E
B
C
Q1102
MMBT3904-(F)
OPT
E
B
C
R1118
0
COMP2_R_IN
C1103
100pF
50V
C1115
100pF
50V
C1102 1uF
25V
AV_CVBS_DET
9:G3
C1109
27pF
50V
R1102
470K
R1109
470K
SC1_B
R1106
0
D1115
5.6V
+3.5V_ST
C1119
27pF
50V
C1121
27pF
50V
COMP2_Y
C1106
27pF
50V
L1104
270nH
COMP2_L_IN
L1105
270nH
L1101
270nH
Q1103
MMBT3904-(F)
OPT
E
B
C
HP_DET
C1107
27pF
50V
+3.3V_NORMAL
Q1101
MMBT3904-(F)
OPT
E
B
C
C1127
100pF
D1106
5.5V
COMP2_Pr
R1122
1K
OPT
C1131
1000pF
50V
OPT
C1108
27pF
50V
R1123
1K
R1104
1K
L1100
270nH
REAR_AV_CVBS
11:C4;AL18
C1118
27pF
50V
C1111
27pF
50V
REAR_AV_L_IN
10:B5;AF22
C1126
100pF
R1107
0
D1101
5.6V
C1110
27pF
50V
R1121
1K
OPT
REAR_AV_R_IN
10:B5;AF24
SCART1_DET
C1116
1uF
25V
SC1_G
+3.3V_NORMAL
DTV/MNT_V_OUT
SC1_FB
TP1100
TP1101
SC1_ID
TP1102
DTV_ATV_SELECT
TP1103
SCART1_Rout_P
SCART1_Rout_N
TP1104
TP1105
SC1_CVBS_IN
TP1107
SC_RE2
SC_RE1
TP1108
TP1109
SCART1_Lout_P
SCART1_Lout_N
TP1110
TP1111
R1115
10K
R1101
10K
R1112
10K
C1139
0.1uF
16V
HP_LOUT_N
R1129
OPT
100K
SIDE_HP_MUTE
C1134
1uF
10V
R1133
0
OPT
HP_ROUT
L1106
10uH
HP_LOUT_P
C1140
2.2uF
10V
R1128
OPT
HP_ROUT_P
IC1100
TPA6132A2
EAN60724701
3
INR+
2
INL+
4
INR-
1
INL-
5
OUTR
6
G0
7
G1
8
HPVSS
9
CPN
10
PGND
11
CPP
12
HPVDD
13
EN
14
VDD
15
SGND
16
OUTL
R1127
4.7K
R1134
1K
C1132
1uF
10V
C1137
10uF
10V
R1132
4.7K
L1107
BG2012B080TF
C1136
1uF
10V
Q1104
2SC3052
E
B
C
HP_ROUT_N
C1135
1uF
10V
L1108
BG2012B080TF
HP_LOUT
C1138
2.2uF
10V
R1120
4.7K
R1126
OPT
+3.3V_NORMAL
+3.3V_NORMAL
C1141
2.2uF
10V
C1133
1uF
10V
D1103
5.1V
D1116
5.1V
D1108
5.1V
D1117
5.1V
D1113
5.1V
D1118
5.1V
R1130
0
1/16W
R1131
0
1/16W
C1142
0.22uF
16V
C1143
0.22uF
16V
AV
New Item Development
EARPHONE BLOCK
COMPONENT1
COMPONENT2
AV1
COMPONENT2
<Practically COMP1>
NON_SCART
EARPHONE AMP
==> COMP1_DET
==> COMP1_R_IN
==> COMP1_L_IN
==> COMP1_Y
==> COMP1_Pb
==> COMP1_Pr
COMPONENT1
<Practically COMP2>
Close to the IC
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.
+3.3V_TU
IF_AGC_SEL
Q2601
ISA1530AC1
E
B
C
R2604
0
INT_DEMOD
TU_SIF
R2602
0
R2623
10K
C2600
100pF
50V
R2608
10K
OPT
C2605
100pF
50V
R2621
10K
C2607
0.1uF
16V
LNA2_CTL/BOSTER_CTL
C2610
0.1uF
16V
R2606
100
Q2602
ISA1530AC1
E
B
C
R2622
4.7K
R2615
0
R2600
0
OPT
R2612
100
NIM
TU_CVBS
C2603
0.1uF
16V
+5V_TU
IF_P_EXT
C2608
0.1uF
16V
OPT
R2611
100
NIM
C2606
0.1uF
16V
C2602
0.1uF
16V
R2616
200
R2605
0
TUNER_RESET
+5V_TU
Q2600
2SC3052
OPT
E
B
C
C2604
100pF
50V
IF_AGC
R2626
82
R2601
0
C2609
10uF
10V
OPT
C2613
0.01uF
25V
R2607
100K
+1.2V_TU
+5V_TU
Q2604
2SC3052
E
B
C
+5V_TU
L2600
BLM18PG121SN1D
R2613
0
Q2605
ISA1530AC1
E
B
C
IF_N_EXT
TU_IF_N_BCM
C2601
0.1uF
16V
+3.3V_TU
R2625
470
TU_IF_P_BCM
R2619
200
R2603
0
INT_DEMOD
R2614
1K
OPT
RF_SWITCH_CTL
R2618
2.2K
C2622
0.1uF
16V
+3.3V_TU
C2626
22uF
10V
C2620
0.1uF
16V
C2625
22uF
10V
+3.3V_NORMAL
L2603
BLM18PG121SN1D
+5V_TU
C2623
0.1uF
16V
C2621
0.1uF
16V
+5V_NORMAL
L2604
CIC21J501NE
R2641
510
R2632
3.9K
1/16W
5%
TU_IF_N_1
R2624
3.9K
1/16W
5%
R2642
510
READY
R2633
2K
1/16W
5%
TU_IF_AGC_2
TU_IF_P_1
C2629
0.01uF
A3.3V
R2638
220
1/16W
5%
TU_IF_N_BCM
C2631
0.01uF
TU_IF_AGC_BCM
C2632
0.01uF
+5V_NORMAL
TU_IF_P_BCM
C2627 0.01uF
TU_IF_AGC_1
C2614
0.1uF
16V
+1.2V_TU
C2615
10uF
10V
R2627
1.2K
IC2600
AZ1117H-ADJTRE1(EH11A)
2
OUTPUT
3
INPUT
1
ADJ/GND
GND
R2628
10
C2616
0.1uF
16V
R2629
1
+3.3V_TU
C2633
0.1uF
16V
TU2600
TDTR-T055F
Taiwan/Brazil_V
14
+B3[3.3V]
13
+B2[1.2V]
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1[N]
9
SIF
8
NC(IF_TP)
3
+B[5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
TU2600-*3
TDTJ-S031D
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
TU2600-*4
TDTJ-S001D
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC[IF_TP]
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
R2643
1K
OPT
R2644
0
OPT
TU2600-*5
TDTR-T035F
Taiwan/Brazil_H
14
+B3[3.3V]
13
+B2[1.2V]
5
NC_2
12
GND
11
VIDEO
2
BST_CTL
10
NC_4
4
NC_1[RF_AGC]
1
RF_S/W_CTL
17
DIF_1[N]
9
SIF
8
NC_3
3
+B1[5V]
16
IF/AGC
7
SDAT
6
SCLT
15
RESET
18
DIF_2[P]
19
SHIELD
TU2600-*1
TDVJ-H031F
Latin_Tuner_V
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
TU2600-*2
TDVJ-H001F
Latin_Tuner_H
14
3.3V
13
1.2V
5
AS
12
GND
11
VIDEO
2
BST_CNTL
10
NC
4
NC[RF_AGC]
1
ANT_PWR[OPT]
17
DIF_1
9
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
L2605
BLM18PG121SN1D
C2634
10uF
10V
C2635
10uF
10V
C2636
22uF
10V
C2637
0.1uF
16V
SDA0_3.3V
C2638
20pF
50V
TUNER_I2C_LPF
L2609-*1
33
NON_TUNER_I2C_LPF
C2639
20pF
50V
TUNER_I2C_LPF
L2610-*1
33
NON_TUNER_I2C_LPF
C2611
62pF
50V
TUNER_I2C_LPF
L2609
TUNER_I2C_LPF
270nH
SCL0_3.3V
C2612
62pF
50V
TUNER_I2C_LPF
L2610
TUNER_I2C_LPF
270nH
C2612-*1
18pF
50V
NON_TUNER_I2C_LPF
C2611-*1
18pF
50V
NON_TUNER_I2C_LPF
C2624
10uF
16V
Tuner (Half Nim)
GP2_BCM
Ver. 1.0
28
CAN H-NIM/NIM TUNER for TAIWAN
close to TUNER
OPTION : RF AGC
close to TUNER
60mA
200mA
IF AGC FILTER
IF FILTER OPTION
CAUTION : Closed BCM IC(IC100)
R2
R1
V_OUT=V_REF(1+R2/R1)
For ESD
close to TUNER
close to TUNER
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.
R2801
2.2K
ISDB_DEMOD
C2823
0.1uF
16V
ISDB_DEMOD
SDA1_3.3V
X2800
25MHz
ISDB_DEMOD
C2817
0.1uF
16V
ISDB_DEMOD
C2806
0.1uF
ISDB_DEMOD
R2802
2.2K
ISDB_DEMOD
R2800
10K
1%
ISDB_DEMOD
+3.3V_DE
IF_N_EXT
FE_TS_SERIAL
FE_TS_VAL_ERR
C2810
0.1uF
16V
ISDB_DEMOD
C2824
0.1uF
ISDB_DEMOD
R2805
2.2K
ISDB_DEMOD
FE_TS_SYNC
R2812
2.2K
OPT
C2818
15pF
50V
ISDB_DEMOD
C2802
0.1uF
ISDB_DEMOD
C2803
0.1uF
ISDB_DEMOD
C2826
0.1uF
ISDB_DEMOD
C2809
0.1uF
ISDB_DEMOD
DEMOD_RESET
C2805
0.1uF
ISDB_DEMOD
C2827
0.1uF
ISDB_DEMOD
FE_TS_DATA_CLK
C2814
15pF
50V
ISDB_DEMOD
IF_P_EXT
R2804
2.2K
ISDB_DEMOD
C2800
0.1uF
ISDB_DEMOD
R2809
22
ISDB_DEMOD
C2816
0.1uF
16V
ISDB_DEMOD
+3.3V_DE
C2807
0.1uF
ISDB_DEMOD
R2806
1M
ISDB_OPT
C2821
0.1uF
16V
ISDB_DEMOD
C2825
0.1uF
ISDB_DEMOD
C2820
0.1uF
16V
ISDB_DEMOD
IF_AGC_ISDB
C2819
0.1uF
16V
ISDB_DEMOD
C2812
0.1uF
16V
ISDB_DEMOD
+1.2V_DE
SCL1_3.3V
R2810
22
ISDB_DEMOD
R2808
22
ISDB_DEMOD
C2804
0.1uF
ISDB_DEMOD
C2813
0.1uF
16V
ISDB_DEMOD
R2803
10K
ISDB_DEMOD
C2811
0.1uF
16V
ISDB_DEMOD
C2801
0.1uF
ISDB_DEMOD
C2815
0.1uF
16V
ISDB_DEMOD
C2822
0.1uF
16V
ISDB_DEMOD
R2807
22
ISDB_DEMOD
R2811
2.2K
OPT
C2808
0.1uF
ISDB_DEMOD
R2813
22
R2814
22
IC2800
MN884433
ISDB_DEMOD
1
VSS_1
2
AVDD_S
3
AII_S
4
AIQ_S
5
AVSS_S
6
VRT_S
7
VRB_S
8
TCPO_S
9
VDDL_1
10
MSCL_S
11
MSDA_S
12
VSS_2
13
VSSH
14
PSEL
15
ZSEL
16
VDDL_2
17
ACKI
18
TCPO_T
19
IR_T
20
VRT_T
21
VRB_T
22
AVDD_T
23
AIN_T
24
AIP_T
25
AVSS_T
26
VSS_3
27
MSCL_T
28
MSDA_T
29
VDDH_1
30
GPO1
31
AGCI_T
32
AGCR_T
33
GPO0
34
VDDL_3
35
VSS_4
36
XO
37
XI
38
VDDH_2
39
GPI1
40
GPI0
41
TEST4
42
SHVPP
43
SHVDDH
44
NC_1
45
VSS_5
46
VDDL_4
47
TCK
48
TDI
49
NRST
50
TEST3
51
VSS_6
52
VDDL_5
53
TRST
54
TMS
55
CSEL0
56
CSEL1
57
TDO
58
SYNCA
59
ERRA
60
SYNCB
61
ERRB
62
VSS_7
63
VDDL_6
64
SADR_T
65
NC_2
66
SADR_S
67
HDVDDL0
68
VSS_8
69
SDA
70
SCL
71
VDDH_3
72
SADR
73
INTA
74
INTB
75
VSS_9
76
TEST1
77
TEST2
78
SCKA
79
GPI2
80
SDOA
81
PCKA
82
DENA
83
VDDH_4
84
VSS_10
85
HDVPP
86
RON
87
NC_3
88
HDVDDH
89
NC_4
90
HDVDDL1
91
VSS_11
92
VDDL_7
93
SCKB
94
TEST0
95
SDOB
96
PCKB
97
DENB
98
GPO2
99
VDDH_5
100
AGC_S
ISDB-T Demodulator
GP2_Saturn7M
Ver. 1.0
28
AMP_I2C HAVE PULL-UP
(FE_TS_SERIAL)
PANASONIC (ISDB-T)
MN884433
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.
C2905
22uF
16V
ISDB_POWER
C2904
0.1uF
16V
ISDB_POWER
IC2900
SC4215ISTRT
ISDB_POWER
3
VIN
2
EN
4
NC_2
1
NC_1
5
NC_3
6
VO
7
ADJ
8
GND
+3.3V_DE
IF_AGC
L2900
BLM18PG121SN1D
ISDB_POWER
C2902
0.1uF
16V
ISDB_POWER
R2900
0
ISDB_DEMOD
R2902
10K
ISDB_POWER
R2901
0
INT_DEMOD
IF_AGC_ISDB
+3.3V_DE
C2903
10uF
10V
ISDB_POWER
R2903
5.1K
ISDB_POWER
TP2901
C2900
0.1uF
ISDB_POWER
IF_AGC_SEL
TU_IF_AGC_BCM
C2901
0.1uF
ISDB_POWER
+3.3V_NORMAL
+1.2V_DE
Demodulator
GP2_Saturn7M
Ver. 1.0
29
IF AGC SELECTION
Panasonic Demodulator Power(3.3V,1.2V)
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