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.
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.
2009.06.18
HDMI
BCM (EUROBBTV)
CK-_HDMI3
D2-_HDMI1
R8338
22
GND
+5V_NORMAL
C8300
0.1uF
0.1uF
D1-_HDMI4
+5V_NORMAL
HDMI_RX1+
D0-_HDMI2
DDC_SDA_1
5V_HPD1
R8326
22K
D1+_HDMI2
D2+_HDMI2
5V_HDMI_3
HDMI_HPD_4
R8308
0
+3.3V_HDMI
JP8305
GND
HDMI_HPD_1
GND
DDC_SDA_4
R8325
1.8K
1.8K
HDMI_CEC
D0+_HDMI3
CEC_REMOTE
DDC_SDA_1
C8305
0.1uF
DDC_SCL_1
R8348
4.7K
OPT
D2+_HDMI1
R8323
47K
Q8304
KRC104S
E
B
C
D2-_HDMI4
R8340
22
C8318
0.1uF
16V
0.1uF
16V
R8310
4.7K
4.7K
HDMI_CLK-
+3.3V_NORMAL
R8301
1K
CK+_HDMI1
GND
DDC_SCL_4
D8306
A1
C
A2
HDMI_CLK+
D1-_HDMI2
GND
DDC_SDA_4
D8310
A1
C
A2
CEC_REMOTE
D1-_HDMI4
R8309
4.7K
4.7K
HDMI_3
HDMI_RX1-
D1-_HDMI1
R8318
0
CK+_HDMI4
JK8300
YKF45-7058V
EAG59023302
HDMI_3
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
D1+_HDMI1
C8309
0.1uF
D0+_HDMI2
R8306
0
DDC_SCL_4
GND
R8321
4.7K
4.7K
R8316
1K
Q8307
KRC104S
E
B
C
HDMI_HPD_2
C8322
0.1uF
GND
D0+_HDMI2
DDC_SCL_3
R8304
0
HDMI_3
HDMI_HPD_4
D1+_HDMI4
+5V_NORMAL
D0-_HDMI4
+5V_NORMAL
R8313
47K
47K
R8336
0
SCL2_3.3V
D8303
5.5V
5.5V
OPT
DDC_SDA_2
DDC_SCL_2
GND
Q8300
KRC104S
HDMI_3
E
B
C
+5V_NORMAL
D8300
5.5V
5.5V
OPT
D2-_HDMI4
D0+_HDMI1
D2-_HDMI2
HDMI_SDA
HDMI_HPD_3
CK+_HDMI3
DDC_SDA_1
CK-_HDMI2
BSS83
Q8308
S
B
D
G
DDC_SDA_4
R8324
1.8K
1.8K
D1+_HDMI4
D2+_HDMI1
CK+_HDMI1
R8346
0
OPT
CK+_HDMI4
JK8301
YKF45-7058V
EAG59023302
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
JP8303
R8344
12K
5V_HPD4
Q8302
KRC104S
E
B
C
5V_HDMI_2
Q8306
KRC104S
E
B
C
GND
5V_HDMI_4
D8302
5.5V
5.5V
OPT
GND
C8307
0.1uF
Q8305
KRC104S
E
B
C
DDC_SDA_3
Q8303
KRC104S
HDMI_3
E
B
C
DDC_SCL_2
5V_HPD2
D0-_HDMI1
HDMI_RX2+
CK-_HDMI4
5V_HPD2
D0-_HDMI4
+1.8V_HDMI
D1-_HDMI2
C8324
0.1uF
C8321
0.1uF
D8311
5.5V
5.5V
ESD
D1+_HDMI3
D2+_HDMI4
R8312
47K
R8305
0
0
R8343
OPT
0
JP8304
D0-_HDMI3
Q8301
KRC104S
E
B
C
JP8307
JP8306
D0+_HDMI4
+3.3V_HDMI
D8305
5.5V
OPT
5.5V
OPT
HDMI_RX0+
C8303
0.1uF
16V
0.1uF
16V
DDC_SCL_1
5V_HDMI_1
5V_HDMI_3
D2+_HDMI3
CK+_HDMI3
CK-_HDMI4
5V_HDMI_1
GND
+3.3V_HDMI
R8319
47K
HDMI_3
C8316
0.1uF
16V
0.1uF
16V
R8314
47K
HDMI_HPD_3
DDC_SCL_3
D8309
HDMI_3
A1
C
A2
5V_HPD4
C8302
0.1uF
16V
5V_HPD3
+3.5V_ST
D0+_HDMI4
HDMI_SCL
R8347
4.7K
4.7K
OPT
5V_HDMI_3
JP8302
D2-_HDMI3
C8320
0.1uF
D2-_HDMI1
D1-_HDMI3
R8302
1K
R8303
0
0
HDMI_3
5V_HDMI_4
D0-_HDMI1
5V_HDMI_2
D1-_HDMI3
R8311
4.7K
4.7K
R8327
0
D0+_HDMI1
HDMI_RX0-
CK+_HDMI2
DDC_SDA_2
D8301
5.5V
5.5V
OPT
CEC_REMOTE
DDC_SDA_2
CK-_HDMI1
D8307
A1
C
A2
+5V_NORMAL
CK+_HDMI2
D0-_HDMI3
C8304
0.1uF
16V
0.1uF
16V
R8322
47K
HDMI_3
CEC_REMOTE
CEC_REMOTE
C8313
0.1uF
16V
0.1uF
16V
D8312
MMBD301LT1G
R8337
0
GND
R8307
0
0
HDMI_HPD_1
GND
DDC_SCL_4
D8304
5.5V
5.5V
OPT
HDMI_HPD_2
GND
SDA2_3.3V
DDC_SDA_3
5V_HPD1
GND
R8300
1K
HDMI_3
R8317
0
0
5V_HDMI_2
5V_HDMI_1
R8315
47K
D2-_HDMI3
D1-_HDMI1
CK-_HDMI2
JK8303
KJA-ET-0-0032
EAG42463001
14
NC
13
CE_REMOTE
5
D1_GND
20
JACK_GND
GND
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
C8317
0.1uF
0.1uF
16V
D1+_HDMI3
+1.8V_HDMI
GND
D2-_HDMI2
C8306
0.1uF
16V
0.1uF
16V
D1+_HDMI1
C8312
0.1uF
16V
0.1uF
16V
5V_HPD3
R8320
47K
D2+_HDMI2
C8301
0.1uF
16V
0.1uF
16V
DDC_SCL_1
D0+_HDMI3
DDC_SDA_3
JP8300
C8323
0.1uF
16V
0.1uF
16V
JK8302
YKF45-7058V
EAG59023302
14
NC
13
CE_REMOTE
5
D1_GND
20
SHIELD
12
CK-
11
CK_GND
2
D2_GND
19
HP_DET
18
5V
10
CK+
4
D1+
1
D2+
17
GND
9
D0-
8
D0_GND
3
D2-
16
DDC_DATA
7
D0+
6
D1-
15
DDC_CLK
L8300
BLM18PG121SN1D
D2+_HDMI3
C8319
0.1uF
D1+_HDMI2
D0-_HDMI2
C8308
0.1uF
DDC_SCL_3
JP8301
CK-_HDMI1
5V_HDMI_4
D2+_HDMI4
HDMI_RX2-
DDC_SCL_2
CK-_HDMI3
R8335 0
OPT
R8345
0
OPT
0
OPT
R8328
0
OPT
R8339
0
OPT
C8314
0.1uF
16V
0.1uF
16V
C8315
0.1uF
C8310
0.1uF
C8311
0.1uF
IC8300
TDA19997
1
VSS_1
2
OUT_C+
3
OUT_C-
4
VDDO[3V3]
5
OUT_DDC_CLK
6
OUT_DDC_DAT
7
VSS_2
8
VDDDC[1V8]_1
9
RXA_HPD
10
RXA_5V
11
RXA_DDC_DAT
12
RXA_DDC_CLK
13
RXA_C-
14
RXA_C+
15
VDDH[3V3]_1
16
RXA_D0-
17
RXA_D0+
18
VSS_3
19
RXA_D1-
20
RXA_D1+
21
VDDH[3V3]_2
22
RXA_D2-
23
RXA_D2+
24
VDDH[1V8]_1
25
AUX_5V
26
VSS_4
27
TEST1
28
RXB_HPD
29
RXB_5V
30
RXB_DDC_DAT
31
RXB_DDC_CLK
32
RXB_C-
33
RXB_C+
34
VDDH[3V3]_3
35
RXB_D0-
36
RXB_D0+
37
VSS_5
38
RXB_D1-
39
RXB_D1+
40
VDDH[3V3]_4
41
RXB_D2-
42
RXB_D2+
43
VSS_6
44
CDEC_DDC
45
VDDDC[1V8]_2
46
VDDDC[1V8]_4
47
TEST2
48
PD
49
I2C_SDA
50
I2C_SCL
51
RXE_DDC_CLK
52
RXE_DDC_DAT
53
INT_N/MUTE
54
CDEC_STBY
55
VDDS[3V3]
56
VSS_7
57
CEC
58
RXC_HPD
59
RXC_5V
60
RXC_DDC_DAT
61
RXC_DDC_CLK
62
RXC_C-
63
RXC_C+
64
VDDH[3V3]_5
65
RXC_D0-
66
RXC_D0+
67
VSS_8
68
RXC_D1-
69
RXC_D1+
70
VDDH[3V3]_6
71
RXC_D2-
72
RXC_D2+
73
VSS_9
74
R12K
75
VDDH[1V8]_2
76
RXD_HPD
77
RXD_5V
78
RXD_DDC_DAT
79
RXD_DDC_CLK
80
RXD_C-
81
RXD_C+
82
VDDH[3V3]_7
83
RXD_D0-
84
RXD_D0+
85
VSS_10
86
RXD_D1-
87
RXD_D1+
88
VDDH[3V3]_8
89
RXD_D2-
90
RXD_D2+
91
VDDDC[1V8]_3
92
VSS_11
93
OUT_D2+
94
OUT_D2-
95
VDDO[1V8]
96
OUT_D1+
97
OUT_D1-
98
VSS_12
99
OUT_D0+
100
OUT_D0-
D8313
5.6V
CDS3C05HDMI1
ESD
D8314
5.6V
CDS3C05HDMI1
ESD
GND
R8329
33
R8334
33
R8332
33
R8333
33
R8331
33
R8330
33
D8308
5.5V
ESD
ESD
R
8
3
4
9
1
0
0
K
LEE GI YOUNG
8
* HDMI CEC
EDID Pull-up
SIDE_HDMI_PORT4
UI_HW_PORT3
HDMI4
UI_HW_PORT1
HDMI2
Ready for TDA19997
HDMI3
HDMI1
UI_HW_PORT2
Place close
to TDA9996
to TDA9996
F
i
b
e
r
O
p
t
i
c
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.
2009.06.18
EUROBBTV
DSUB_R
JK8401
PEJ027-01
6B
T_TERMINAL2
7B
B_TERMINAL2
5
T_SPRING
4
R_SPRING
7A
B_TERMINAL1
6A
T_TERMINAL1
3
E_SPRING
D8407
5.6V
AMOTECH
RGB_DDC_SDA
+3.3V_NORMAL
D8409
ENKMC2838-T112
A1
C
A2
EDID_WP
RGB_HSYNC
C8409
100pF
100pF
50V
IC8401
M24C02-RMN6T
RGB_EDID_ST
0IMMR00014A
3
E2
2
E1
4
VSS
1
E0
5
SDA
6
SCL
7
WC
8
VCC
R8412
470K
470K
RGB_DDC_SCL
D8406
5.6V
AMOTECH
+5V_NORMAL
RGB_VSYNC
R8418
0
0
PC_R_IN
IC8400
74F08D
74F08D
3
Q0
2
D0B
4
D1A
1
D0A
6
Q1
5
D1B
7
GND
8
Q2
9
D2A
10
D2B
11
Q3
12
D3A
13
D3B
14
VCC
JK8402
SPG09-DB-010
1
R
E
D
2
G
R
E
E
N
3
B
L
U
E
4
G
N
D
_
1
5
D
D
C
_
G
N
D
6
R
E
D
_
G
N
D
7
G
R
E
E
N
_
G
N
D
8
B
L
U
E
_
G
N
D
9
N
C
1
0
S
Y
N
C
_
G
N
D
1
1
G
N
D
_
2
1
2
D
D
C
_
D
A
T
A
1
3
H
_
S
Y
N
C
1
4
V
_
S
Y
N
C
1
5
D
D
C
_
C
L
O
C
K
1
6
S
H
I
L
E
D
R8401
22
DSUB_B
PC_L_IN
+5V_NORMAL
R8414
2.7K
R8411
470K
470K
R8419
0
0
DSUB_G
R8402
22
DSUB_DET
R
8
4
1
3
2
.
7
K
R8423
0
OPT
R8425
1K
R8424
10K
10K
R8421
0
R8417
0
C8402
22pF
50V
OPT
C8403
22pF
50V
OPT
R8405
22
R8406
22
C8401
0.1uF
0.1uF
C8404
0.1uF 16V
C8405
18pF
50V
C8406
18pF
50V
R8416
22
R8415
22
R8422
100
R8420
10K
D8401
30V
ADUC30S03010L_AMODIODE
D8403
30V
ADUC30S03010L_AMODIODE
D8402
30V
D8404
30V
D8405
30V
D8408
5.6V
CDS3C05HDMI1
OPT
D8410
5.6V
CDS3C05HDMI1
OPT
D8411
5.6V
5.6V
ADMC5M03200L_AMODIODE
OPT
R8407
75
75
R8404
75
75
R8403
75
75
C8407
1uF
25V
C8408
1uF
25V
JP8401
+3.3V_NORMAL
JP8402
JK8400
JST1223-001
1
GND
2
VCC
3
VINPUT
4
FIX_POLE
JP8400
D8400
30V
30V
OPT
SPDIF_OUT
C8400
0.1uF
0.1uF
16V
R8400
1K
IC8401-*1
R1EX24002ASAS0A
RGB_EDID_RENESAS
DEV
3
A2
2
A1
4
VSS
1
A0
5
SDA
6
SCL
7
WP
8
VCC
L8408 60-ohm
RGB_BEAD
L8410 60-ohm
RGB_BEAD
L8409 60-ohm
RGB_BEAD
L8408-*1
0
0
RGB_0OHM
L8409-*1
0
0
RGB_0OHM
L8410-*1
0
0
RGB_0OHM
9
ETC SUB BOARD I/F
RGB AUDIO IN
RGB PC
RGB IN
BCM Reference
BCM Reference
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.
SIDE_GENDER
SIDE_AV_DET
SIDE_AV_R_IN
SIDE_AV_CVBS
SIDE_AV_L_IN
SIDE_COMP_Pb
SIDE_COMP_Y
SIDE_COMP_Pr
SIDE_COMP_DET
L8602
270nH
270nH
C8610
27pF
50V
50V
L8601
270nH
270nH
C8602
27pF
27pF
50V
C8609
27pF
50V
50V
C8603
27pF
27pF
50V
C8605
47pF
50V
47pF
50V
0
R8603
D8601
5.6V
5.6V
R8605
10K
10K
+3.3V_NORMAL
C8600
100pF
50V
100pF
50V
R8608
1K
C8611
100pF
50V
100pF
50V
R8601
470K
D8602
5.6V
R8606
0
0
C8607
1uF
25V
R8607
0
0
R8602
470K
C8606
1uF
25V
D8603
5.6V
C8612
100pF
50V
100pF
50V
C8608
27pF
50V
50V
C8601
27pF
27pF
50V
L8600
270nH
270nH
R8604
1K
1K
+3.3V_NORMAL
C8604
100pF
100pF
50V
D8606
5.6V
R8600
10K
D8607
5.5V
D8605
5.5V
SIDE_COMP_INCM
C8613
0.1uF
R8609
36
JK8601
KJA-PH-1-0177
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
JK8600
KJA-PH-1-0177
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
D8608
5.1V
D8609
5.1V
D8610
5.1V
D8611
5.1V
11
(New Item Developmen)
(New Item Developmen)
SIDE CVBS PHONE JACK
SIDE COMPONENT PHONE JACK
ALL for SIDE_GENDER option
Run Along SIDE_COMP_Y_IN,SIDE_COMP_Pr_IN,SIDE_COMP_Pb_IN Trace
Near J
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.
WIRELESS
BCM_RXD1
R8705
2.2K
2.2K
C8702
0.01uF
50V
+3.5V_ST
JK8700
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
TP8700
+24V
R8700
0
WIRELESS
C8701
2.2uF
R8711
4.7K
OPT
C8703
0.1uF
R8713
1K
IC8700
MC14053BDR2G
WIRELESS
3
Z1
2
Y0
4
Z
1
Y1
6
INH
5
Z0
7
VEE
8
VSS
9
C
10
B
11
A
12
X0
13
X1
14
X
15
Y
16
VDD
R8704
22K
22K
R8712
47K
OPT
R8706
0 NON_WIRELESS
0 NON_WIRELESS
R8708
0
WIRELESS
C8700
0.1uF
50V
0.1uF
50V
WIRELESS_TX
WIRELESS_SCL
R8714
10K
TP8701
R8707
0
WIRELESS
WIRELESS_DL_RX
+3.3V_NORMAL
+3.5V_ST
IR_PASS
R8701
0
WIRELESS
WIRELESS_DETECT
R8702
10K
10K
WIRELESS_RX
R8703
0
NON_WIRELESS
WIRELESS_PWR_EN
Q8700
E
B
C
WIRELESS_SW_CTRL
BCM_RX
BCM_TX
Q8701
AO3407A
G
D
S
WIRELESS_RX
WIRELESS_TX
BCM_TXD1
WIRELESS_DL_TX
WIRELESS_SDA
C8704
10uF
35V
10uF
35V
C8705
10uF
35V
10uF
35V
L8700
MLB-201209-0120P-N2
RS232C & Wireless
LOW
WIRELESS_SW_CTRL
Wireless power
WIRELESS Dongle connect --> WIRELESS RS232
HIGH
SELECT PIN
WIRELESS Dongle Dis_con --> S7 RS232
X0/Y0/Z0
X1/Y1/Z1
WIRELESS READY MODEL
STATUS
12
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