LG 42LW5500-ZE / 42LW550T-ZE / 42LW550W-ZE / 42LW551C-ZE / 42LW5590-ZE (CHASSIS:LD12C) Service Manual ▷ View online
Fiber Optic
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.
C804
560pF
50V
50V
C814
0.1uF
SIDE_HP_MUTE
C817
1uF
10V
R824
OPT
R828
OPT
R806
2.7K
C809
18pF
18pF
50V
DSUB_B+
DSUB_VSYNC
R822
2.7K
RGB_DDC_SDA
IC804
TPA6132A2
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
R863
0
0
D805
30V
R803
0
0
R838
0
IR_OUT
R807
10K
10K
OPT
C825
2.2uF
10V
2.2uF
10V
C812
0.1uF
C815
0.1uF
IR_OUT
HP_ROUT_P
R864
0
0
L803
120-ohm
BLM18PG121SN1D
C805
560pF
50V
50V
JP810
D809
5.6V
OPT
C830
47pF
50V
47pF
50V
JK801
KJA-PH-0-0177
3
DETECT
4
L
5
GND
1
R
R801
22
C829
0.22uF
10V
0.22uF
10V
+5V_Normal
C828
0.22uF
10V
0.22uF
10V
IC802
AT24C02BN-SH-T
3
A2
2
A1
4
GND
1
A0
5
SDA
6
SCL
7
WP
8
VCC
D802
5.6V
ESD_COMMON
AMOTECH
R821
1K
R826
0
OPT
R827
4.7K
BCM_RX
R802
22
JK803
KJA-PH-0-0177
EAG61030001
3
DETECT
4
L
5
GND
1
R
HP_ROUT_N
BCM_TX
D801
5.6V
ESD_COMMON
AMOTECH
R834
100
HP_ROUT
C822
10uF
10V
10V
PC_L_IN
IC803
MAX3232CDR
EAN41348201
3
C1-
2
V+
4
C2+
1
C1+
6
V-
5
C2-
7
DOUT2
8
RIN2
9
ROUT2
10
DIN2
11
DIN1
12
ROUT1
13
RIN1
14
DOUT1
15
GND
16
VCC
R805
470K
470K
R848
22
C832
47pF
50V
47pF
50V
C826
2.2uF
10V
NEC_TXD
DSUB_R+
+5V_Normal
JK802
2F11TC1-EM52-4F
C
GND
B
VCC
A
VIN
4
SHIELD
C810
18pF
50V
+3.5V_ST
R861
4.7K
OPT
R860
4.7K
OPT
R844
1K
1K
DSUB_DET
SPDIF_OUT
R862
0
0
R817
10K
+3.5V_ST
C803
0.1uF
0.1uF
16V
HP_LOUT
R823
4.7K
R819
10K
10K
SPK_R-_HOTEL
+3.3V_Normal
JP809
D803
30V
30V
OPT
R815
2.7K
2.7K
R833
100
C824
0.1uF
16V
HP_DET
C801
560pF
50V
50V
HP_LOUT_N
DSUB_HSYNC
R808
10K
10K
OPT
SPK_R+_HOTEL
NEC_RXD
L804
BG2012B080TF
+3.3V_Normal
RGB_DDC_SCL
PC_R_IN
JK805
SPG09-DB-009
1
2
3
4
5
6
7
8
9
10
C818
1uF
1uF
10V
HP_LOUT
Q801
2SC3052
E
B
C
C816
1uF
10V
1uF
10V
C823
2.2uF
10V
2.2uF
10V
DSUB_G+
D810
KDS184
A2
C
A1
D804
30V
R813
75
C821
1uF
10V
1uF
10V
R812
75
HP_LOUT_P
+3.3V_Normal
R814
2.7K
C813
0.1uF
R804
470K
470K
R865
0
0
L805
BG2012B080TF
R837
OPT
100K
C802
560pF
50V
50V
D811
5.6V
OPT
HP_ROUT
R825
0
OPT
R811
75
+3.3V_Normal
R847
22
C819
1uF
1uF
10V
EDID_WP
IC801
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
JK804
SLIM-15F-D-2
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
+3.3V_Normal
R842
4.7K
4.7K
R820
1K
R843
0
0
OPT
C831
47pF
50V
47pF
50V
R866
22
22
R867
22
22
D808
30V
30V
ESD_COMMON
D806
30V
30V
ESD_COMMON
D807
30V
30V
ESD_COMMON
D808-*1
5.6V
ESD_CERADIODE
D806-*1
5.6V
ESD_CERADIODE
D807-*1
5.6V
ESD_CERADIODE
D813-*1
5.6V
ESD_CERADIODE
D814-*1
5.6V
ESD_CERADIODE
D813
30V
ESD_COMMON
D814
30V
ESD_COMMON
D812-*1
5.6V
ESD_CERADIODE
D812
5.6V
ESD_COMMON
L806
BLM15BD121SN1
L807
BLM15BD121SN1
L808
BLM15BD121SN1
R850
0
OPT
R851
0
OPT
R852 0
OPT
R853 0
OPT
C807
22pF
50V
22pF
50V
C808
22pF
50V
22pF
50V
R868
0
0
R869
0
0
DUAL COMPONENT
1ST : 0TRIY80001A, 2ND : 0TR387500AA
RS232C
58
EARPHON JACK
BCM35230
1ST : 0DD184009AA, 2ND : 0DSIH00028A
Q801
D804,D805,D806
D807,D808,D813
D814
D807,D808,D813
D814
RGB/ PC AUDIO/ SPDIF/ EARPHONE/ RS232C
RGB PC
8
COMMON JACK
D810
1ST : EAH39491601, 2ND : EAH33945901
IC805
PC AUDIO
Close to the IC
SPDIF OUT
EARPHONE AMP
1ST : EAN61151201, 2ND : EAN61130001
Closed to JACK
2010.10.21
LPF READEY
(For H/P Noise Improvement)
(For H/P Noise Improvement)
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.
Q906
2SC3052
WIRELESS
E
B
C
IR_OUT
Q902
2SC3052
E
B
C
D902
5.6V
AMOTECH
C905
1000pF
50V
+3.5V_ST
S/T_SCL
+3.5V_ST
+3.5V_ST
R913
10K
10K
COMMERCIAL_EU
R934
100
100
+3.5V_ST
R909
3.3K
3.3K
OPT
R935
100
100
+3.5V_ST
Q903
2SC3052
COMMERCIAL_EU
E
B
C
R920
10K
1%
KEY2
R910
0
0
COMMERCIAL_US
+3.5V_ST
R914
10K
10K
WIRELESS
R922
47K
WIRELESS
R906
22
COMMERCIAL
EEPROM_SDA
C901
0.1uF
D905
5.6V
CDS3C05HDMI1
D903
5.6V
CDS3C05HDMI1
R902
0
0
OPT
+3.5V_ST
R936
100
100
IR
LED_R/BUZZ
R915
100
100
Q901
2SC3052
E
B
C
EEPROM_SCL
+3.5V_ST
R917
47K
COMMERCIAL
D904
5.6V
CDS3C05HDMI1
R929
1.5K
R928
1.5K
IR_PASS
Q905
2SC3052
COMMERCIAL
E
B
C
D906
5.6V
CDS3C05HDMI1
R933
100
100
R908
47K
Q904
2SC3052
WIRELESS
E
B
C
R919
10K
1%
D901
5.6V
5.6V
AMOTECH
R918
47K
WIRELESS
L902
BLM18PG121SN1D
+3.3V_Normal
D907
5.6V
AMOTECH
R912
47K
WIRELESS
R921
47K
COMMERCIAL
P901
12507WR-15L
IR_15P
1
EEPROM_SCL
2
EEPROM_SDA
3
GND
4
KEY1
5
KEY2
6
3.5V
7
GND
8
LED_B/LOGO
9
IR
10
GND
11
3.3V
12
LED_R/BUZZ
13
GND
14
S/T_SCL
16
.
15
ST_SDA
C904
0.1uF
16V
OPT
L901
BLM18PG121SN1D
R905
47K
LED_B/LG_LOGO
C902
0.1uF
16V
OPT
R903
47K
R907
22
WIRELESS
KEY1
+3.5V_ST
R911
47K
COMMERCIAL_EU
C903
0.1uF
S/T_SDA
R916
100
100
C911
100pF
50V
R904
10K
10K
P902
12507WR-12L
IR_12P
1
2
3
4
5
6
7
8
9
10
11
12
13
C912
0.1uF
16V
ESD_ATSC
C913
0.1uF
16V
ESD_ATSC
DUAL COMPONENT
IR & KEY
1ST : 0TRIY80001A 2ND : 0TR387500AA
50
1ST : EAH42720601, 2ND : EAH60994401
BCM35230
Q901,Q902,Q903
Q904,Q905,Q906
Q904,Q905,Q906
close to wafer
9
WIRELESS
D903,D904
D905,D906
D905,D906
COMMERCIAL
IR/KEY
Zener Diode is
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.
R1007
1K
WIRELESS
+24V
Q1002
WIRELESS
AO3407A
G
D
S
C1004
10uF
35V
10uF
35V
WIRELESS
SDA2_3.3V
+3.3V_Normal
WIRELESS_SDA
R1008
10K
WIRELESS
L1001
MLB-201209-0120P-N2
WIRELESS
WIRELESS_DET
WIRELESS_SCL
SCL2_3.3V
IR_PASS
R1006
33
WIRELESS
D1001
5.6V
CDS3C05HDMI1
WIRELESS
JK1001
KJA-PH-3-0168
WIRELESS
14
GND_3
13
I2C_SDA
5
VCC(24V/20V/17V)_1
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)_1
15
UART_RX
20
GND_6
21
SHIELD
WIRELESS_SDA
D1002
5.6V
CDS3C05HDMI1
WIRELESS
WIRELESS_SCL
R1002
22K
WIRELESS
C1002
2.2uF
WIRELESS
R1003
2.2K
2.2K
WIRELESS
Q1001
WIRELESS
MMBT3904(NXP)
E
B
C
WIRELESS_PWR_EN
R1001
10K
WIRELESS
R1005
33
WIRELESS
1ST : EBK61012601, 2ND : 0TRDI80002A
BCM35230
Q1002
D1001,D1002
Address : 0X20
DUAL COMPONENT
Wireless I2C connection with I2C_1
50
WIRELESS
1ST : EBK60752501, 2ND : EBK61011501
Wireless power
10
Q1001
1ST : EAH42720601 2ND : EAH60994401
WIRELESS READY MODEL
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.
+3.3V_Normal
R1128
2.7K
AV2
ZD1117
5.1V
D1114
5.6V
COMP2
ZD1108
5.1V
COMP2
AV1_L_IN
R1116
470K
470K
AV2
ZD1101
5.1V
AV2
R1107
75
75
1%
JK1102
KJA-PH-1-0177
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
AV2_CVBS_IN
ZD1103
5.1V
COMP2
R1106
75
75
1%
COMP1_Pb
R1119
0
0
COMP2
JK1104
PPJ233-01
AV2_JACK
4A
[YL]O-SPRING
5A
[YL]E-LUG
3A
[YL]CONTACT
4B
[WH]C-LUG
5C
[RD]E-LUG
4C
[RD]O-SPRING
3C
[RD]CONTACT
C1124
560pF
50V
560pF
50V
AV2
SC_B/COMP2_Pb
L1103
BLM18PG121SN1D
COMP2
COMP1_Y
ZD1102
5.1V
AV2
D1111
5.6V
AV2
R1108
75
75
1%
L1104
BLM18PG121SN1D
COMP2
D1107
5.6V
ZD1113
5.1V
R1114
1K
1K
R1130
1K
COMP2
+3.3V_Normal
C1122
560pF
50V
560pF
50V
COMP2
ZD1105
5.1V
COMP2
R1112
2.7K
2.7K
COMP1_Pr
R1105
2.7K
SC/COMP2_R_IN
D1113
5.6V
COMP2
C1113
560pF
50V
560pF
50V
COMP2
AV2_R_IN
JK1105
PPJ238-01
JACK_PACK
5D
[GN2]O-SPRING
6D
[GN2]E-LUG
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
R1120
0
0
COMP2
ZD1107
5.1V
COMP2
R1118
75
75
AV2
D1108
5.6V
ZD1110
5.1V
+3.3V_Normal
R1136
10
10
ZD1114
5.1V
D1101
5.6V
C1108
560pF
50V
560pF
50V
C1114
560pF
50V
560pF
50V
COMP2
C1109
560pF
50V
560pF
50V
AV1_CVBS_IN
SC_G/COMP2_Y
R1129
1K
AV2
R1126
75
75
COMP2
AV1_R_IN
D1112
5.6V
COMP2
AV2_L_IN
R1111
470K
ZD1112
5.1V
R1110
470K
D1105
5.6V
5.6V
R1123
470K
COMP2
R1127
2.7K
COMP2
R1125
75
75
COMP2
COMP1_DET
SC/COMP2_L_IN
R1122
470K
470K
COMP2
ZD1106
5.1V
COMP2
R1121
0
0
COMP2
SC_R/COMP2_Pr
C1110
560pF
50V
560pF
50V
AV2_CVBS_DET
R1140
10
10
AV2
C1107
560pF
50V
560pF
50V
SC_DET/COMP2_DET
ZD1104
5.1V
COMP2
D1110
5.6V
AV2
AV2
AMOTECH
R1117
470K
470K
AV2
R1109
75
75
1%
ZD1111
5.1V
R1124
75
75
COMP2
C1123
560pF
50V
560pF
50V
AV2
D1109
5.6V
AV2
AV2
AMOTECH
JK1101
KJA-PH-1-0177
3
M3_DETECT
4
M4
5
M5_GND
1
M1
6
M6
C1119
560pF
50V
560pF
50V
AV2
ZD1115
5.1V
C1121
560pF
50V
560pF
50V
COMP2
C1118
560pF
50V
560pF
50V
AV2
R1113
1K
1K
+3.3V_Normal
ZD1116
5.1V
AV1_CVBS_DET
R1143
22
22
R1144
22
22
R1141
22
22
AV2
R1142
22
22
AV2
R1131
22
22
COMP2
R1132
22
22
COMP2
L1107
CM2012FR27KT
L1108
CM2012FR27KT
L1109
CM2012FR27KT
L1111
CM2012FR27KT
L1112
CM2012FR27KT
COMP2_Y
COMP2_Pr
COMP2_Pb
COMP2_Pb
COMP2_Pr
COMP2_Y
C1128
27pF
50V
C1116
27pF
50V
C1117
27pF
50V
C1126
27pF
50V
27pF
50V
C1115
27pF
50V
C1127
27pF
50V
27pF
50V
C1104
27pF
50V
27pF
50V
C1129
27pF
50V
C1103
27pF
50V
27pF
50V
C1130
27pF
50V
C1106
47pF
50V
47pF
50V
C1120
47pF
50V
47pF
50V
AV2
R1137
10
10
R1138
10
10
R1139
10
10
R1133
10
COMP2
R1134
10
COMP2
R1135
10
COMP2
L1110
CM2012FR10KT
0.1uH
C1102
47pF
50V
47pF
50V
C1125
47pF
50V
47pF
50V
COMPONENT 1 PHONE JACK
COMP/AV
BCM35230
CVBS 1 PHONE JACK
11
COMP2 REAR JACK
CVBS2 REAR JACK
FOR EMI
FOR EMI
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