LG 55LW5600 (CHASSIS:LA12C) 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.
CIS21J121
R1745-*1
120-ohm
L1709
+3.3V_DVDD
0 . 0 3 3 u F
50V
C1744
100
R1706
0 . 3 3 u F
50V
50V
C1777
SPK_Woofer_R+
SPK_Woofer_R-
3 . 3
R1730
WOOFER
0 . 0 1 u F
50V
50V
C1787
WOOFER
33pF
OPT
C1703
100pF
50V
50V
C1769
WOOFER
33
R1710
2200pF
50V
C1737
+3.3V_AU_AVDD
+24V_AMP
SDA3_3.3V
AMP_RESET_N
1/16W
18
R1722
WOOFER
0
R1739
10uF
35V
C1763
WOOFER
3 . 3
R1731
WOOFER
SPK_L+
0 . 0 4 7 u F
C1724
4700pF
C1732
+3.3V_DVDD
AMP_RESET
+3.3V_AU_AVDD
1uF
25V
C1739
WOOFER
SPK_L-
0
R1752
WOOFER
33pF
OPT
C1797
SCL3_3.3V
470
R1720
WOOFER
+24V
WAFER-ANGLE
P1702
AUDIO_ANGLE
1
2
3
4
470
R1718
WOOFER
0
R1742
SPK_OUTPUT_RESISTER
33pF
OPT
C1719
0 . 3 3 u F
50V
50V
C1780
WOOFER
0
R1757
WOOFER
1uF
25V
C1740
33
R1702
0
R1743
+24V_AMP
SPK_Woofer_L-
2200pF
50V
C1735
WOOFER
0
R1753
100pF
50V
50V
C1768
WOOFER
SPK_Woofer_L+
0 . 1 u F
C1738
SPK_L+
0
R1755
0 . 0 1 u F
50V
50V
C1791
100pF
50V
50V
C1774
SPK_R+
100pF
50V
50V
C1767
WOOFER
AUD_SCK
0 . 1 u F
C1717
WOOFER
120-ohm
L1710
0 . 0 1 u F
50V
C1789
WOOFER
CIS21J121
R1743-*1
SPK_Woofer_L+
0 . 0 1 u F
50V
C1792
Amp_Mute_PDN
SDA3_3.3V
33pF
OPT
C1721
CIS21J121
R1741-*1
0 . 0 3 3 u F
50V
50V
C1758
WOOFER
AUD_SCK
0
R1741
3 . 3
R1733
WOOFER
0 . 0 3 3 u F
50V
C1762
33pF
OPT
C1711
1/16W
18
R1723
WOOFER
1/16W
18
R1728
0 . 3 3 u F
50V
50V
C1782
WOOFER
0 . 0 1 u F
C1748
WOOFER
1000pF
50V
50V
OPT
C1702
0 . 0 1 u F
C1754
0 . 0 1 u F
C1751
1/16W
18
R1724
WOOFER
0 . 1 u F
16V
16V
C1727
1000pF
OPT
C1701
3 . 3
R1735
0 . 1 u F
C1712
SPK_Woofer_R+
0 . 0 3 3 u F
50V
50V
C1743
470
R1721
3 . 3
R1732
WOOFER
33pF
OPT
C1720
0 . 1 u F
50V
C1796
0
R1738
WOOFER_OUTPUT_RESISTOR
0 . 0 3 3 u F
50V
C1761
+24V_AMP
SPK_R-
SPK_L-
100pF
50V
50V
C1770
WOOFER
2K
OPT
R1704
0
R1744
0
OPT
R1705
0 . 3 3 u F
50V
50V
C1776
WOOFER
+3.3V_AU_AVDD
AMP_MUTE
10K
R1762
OPT
10K
R1761
OPT
SCL3_3.3V
0 . 1 u F
C1736
WOOFER
10K
R1701
0 . 3 3 u F
50V
50V
C1785
AUD_LRCH
10uF
35V
C1766
10uF
35V
C1765
WOOFER
0 . 3 3 u F
50V
50V
C1783
MLB-201209-0120P-N2
L1711
AMP_RESET
+3.3V_DVDD
0 . 3 3 u F
50V
50V
C1775
WOOFER
0 . 0 4 7 u F
C1723
WOOFER
CIS21J121
R1739-*1
33
R1708
WOOFER
SPK_Woofer_R-
4700pF
C1726
WOOFER
0 . 0 3 3 u F
50V
C1742
WOOFER
0 . 1 u F
16V
16V
C1725
WOOFER
CIS21J121
SPK_OUTPUT_BEAD
R1742-*1
4700pF
C1728
0 . 0 3 3 u F
50V
50V
C1741
WOOFER
0
R1740
0.047uF
C1733
WOOFER
33pF
OPT
C1704
10K
R1703
CIS21J121
WOOFER_OUTPUT_BEAD
R1738-*1
0.047uF
C1734
0 . 0 1 u F
50V
C1788
WOOFER
33
R1711
SPK_R+
15K
R1713
3 . 3
R1734
0 . 0 1 u F
50V
C1790
WOOFER
0 . 3 3 u F
50V
50V
C1779
WOOFER
1/16W
18
R1726
33pF
OPT
C1722
2SC3052
Q1701
E
B
C
+24V_AMP
18K
1%
R1717
+3.5V_ST
SPK_Woofer_L-
0
R1758
WOOFER
0
R1707
0
R1754
0 . 1 u F
C1718
Amp_Mute_PDN
1/16W
18
R1725
WOOFER
4700pF
C1731
WOOFER
100pF
50V
50V
C1771
100pF
50V
50V
C1773
AUD_LRCK
1/16W
18
R1729
100pF
50V
50V
C1772
0 . 3 3 u F
50V
50V
C1781
WOOFER
0 . 0 3 3 u F
50V
50V
C1759
WOOFER
AUD_MASTER_CLK
+24V_AMP
0 . 3 3 u F
50V
50V
C1784
AMP_RESET
10uF
35V
C1764
+3.3V_Normal
CIS21J121
R1740-*1
+3.3V_DVDD
33pF
OPT
C1708
0 . 0 1 u F
50V
C1794
AUD_MASTER_CLK
0 . 1 u F
50V
C1795
0 . 3 3 u F
50V
50V
C1778
AUD_LRCK
0
R1745
470
R1719
SPK_R-
15K
R1712
WOOFER
AUD_LRCH
18K
1%
R1716
WOOFER
33pF
OPT
C1710
33
R1709
WOOFER
CIS21J121
R1744-*1
0
R1759
WOOFER
0 . 0 1 u F
C1752
WOOFER
3 . 3
R1737
3 . 3
R1736
Amp_Mute_PDN
SMAW250-05
P1701
WOOFER
1
2
3
4
5
1/16W
18
R1727
0 . 3 3 u F
50V
50V
C1786
0 . 1 u F
C1709
WOOFER
0
R1756
0
R1760
WOOFER
33pF
OPT
C1706
0 . 0 1 u F
50V
C1793
33pF
OPT
C1798
NRS6045T100MMGK
10.0uH
L1704
NRS6045T100MMGK
10.0uH
WOOFER
L1702
NRS6045T100MMGK
10.0uH
L1708
NRS6045T100MMGK
10.0uH
L1707
NRS6045T100MMGK
10.0uH
L1703
NRS6045T100MMGK
10.0uH
WOOFER
L1701
NRS6045T100MMGK
10.0uH
WOOFER
L1706
NRS6045T100MMGK
10.0uH
WOOFER
L1705
THERMAL
TAS5727
IC1701
I 2 C : 0 X 5 6
WOOFER
1
OUT_A
2
PVDD_A_1
3
PVDD_A_2
4
BST_A
5
NC_1
6
SSTIMER
7
NC_2
8
PBTL
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
A_SEL_FAULT
15
MCLK
16
OSC_RES
17
DVSSO
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS
29
GND
30
AGND
31
VREG
32
GVDD_OUT_2
33
BST_D
34
PVDD_D_1
35
PVDD_D_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
PVDD_C_1
41
PVDD_C_2
42
BST_C
43
BST_B
44
PVDD_B_1
45
PVDD_B_2
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
49
[ E P ]
THERMAL
TAS5727
IC1702
I 2 C : 0 X 5 4
1
OUT_A
2
PVDD_A_1
3
PVDD_A_2
4
BST_A
5
NC_1
6
SSTIMER
7
NC_2
8
PBTL
9
AVSS
10
PLL_FLTM
11
PLL_FLTP
12
VR_ANA
13
AVDD
14
A_SEL_FAULT
15
MCLK
16
OSC_RES
17
DVSSO
18
VR_DIG
19
PDN
20
LRCLK
21
SCLK
22
SDIN
23
SDA
24
SCL
25
RESET
26
STEST
27
DVDD
28
DVSS
29
GND
30
AGND
31
VREG
32
GVDD_OUT_2
33
BST_D
34
PVDD_D_1
35
PVDD_D_2
36
OUT_D
37
PGND_CD_1
38
PGND_CD_2
39
OUT_C
40
PVDD_C_1
41
PVDD_C_2
42
BST_C
43
BST_B
44
PVDD_B_1
45
PVDD_B_2
46
OUT_B
47
PGND_AB_1
48
PGND_AB_2
49
[ E P ]
TJC2508-4A
P 1 7 0 2 - * 1
AUDIO_STRAIGHT
1
2
3
4
10uF
C1799
AMP_MUTE_CAP
10uF
C1700
WOOFER
10uF
10V
10V
C1705
AMP_MUTE_CAP
10uF
10V
10V
C1707
WOOFER
DUAL COMPONENT
VERY CLOSE AMP IC
Q1701
BCM35230
Separate DGND AND AVSS
WOOFER
50
T h i s p a r t s a r e L o c a t e d
o n A V S S a r e a .
SPEAKER_L
17
T h i s p a r t s a r e L o c a t e d
o n A V S S a r e a .
1ST : 0TRIY80001A 2ND : 0TR387500AA
P l a c e a t B o t t o m
VERY CLOSE AMP IC
Separate DGND AND AVSS
AUDIO[TI]
SPEAKER_R
TAS5727
MAIN
VERY CLOSE AMP IC
VERY CLOSE AMP IC
P l a c e a t B o t t o m
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.
PCM_MDI[0-7]
PCM_MIVAL_ERR
/CI_CE1
CI_DET
/PCM_IRQA
/CI_CE2
PCM_MCLKI
CI_ADDR[2-14]
PCM_TS_VAL
/PCM_WAIT
PCM_5V_CTL
PCM_MISTRT
PCM_TS_DATA[0-7]
PCM_TS_CLK
PCM_TS_SYNC
PCM_RST
PCM_TS_DATA[7]
PCM_MDI[7]
PCM_MDI[5]
CI_ADDR[7]
PCM_MDI[0]
CI_ADDR[11]
CI_ADDR[9]
CI_ADDR[13]
PCM_TS_DATA[3]
PCM_TS_DATA[0]
PCM_MDI[2]
PCM_MDI[6]
CI_ADDR[5]
PCM_TS_DATA[1]
CI_ADDR[14]
PCM_MDI[4]
CI_ADDR[4]
PCM_MDI[3]
PCM_TS_DATA[6]
CI_ADDR[8]
CI_ADDR[12]
CI_ADDR[6]
PCM_TS_DATA[5]
PCM_TS_DATA[2]
CI_ADDR[2]
PCM_MDI[1]
CI_ADDR[3]
CI_ADDR[10]
PCM_TS_DATA[4]
NON CI
20
NON CI
50
BCM35230
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.
0 . 1 u F
16V
C2144
TS_VAL_ERR
1/16W
0
5%
R2161
OPT
4.7K
R2133
100K
R2120
OPT
100K
OPT
R2107
BLM18PG121SN1D
L2114
CHB
0 . 1 u F
CHB
C2176
0 . 1 u F
16V
C2108
+3.3V_TU
0 . 1 u F
16V
C2140
0 . 1 u F
16V
16V
C2145
CHB
18pF
50V
50V
C2122
MLB-201209-0120P-N2
L2105
CHB
100
R2117
33
CHB
R2123
CHB_CVBS
+1.8V_CHB_TU
100uF
16V
16V
C2134
CHB
100pF
50V
50V
CHB
C2117
0 . 1 u F
50V
50V
C2179
100pF
50V
50V
C2124
CHB
+3.3V_M_TU
IF_N
82
R2138
10uF
10V
10V
C2142
CHB
75
R2163
OPT
10uF
10V
C2162
+3.3V_DE
2 . 2 u F
16V
C2180
22uF
16V
C2151
+1.26V_TU
CHB_TS_SYNC
100uF
16V
16V
C2106
+3.3V_TU
0 . 1 u F
C2152
CHB
0 . 1 u F
16V
16V
C2101
OPT
IF_AGC
100pF
50V
50V
C2103
220
R2142
+3.3V_TU
1
R2145
CHB
MMBT3906(NXP)
CHB
Q2101
E
B
C
TU_CVBS
0
R2168
CHB
BLM18PG121SN1D
L2110
0 . 1 u F
16V
16V
C2105
+5V_Normal
IF_P
100pF
50V
50V
C2128
CHB
TU_SIF
0 . 1 u F
C2153
RF_SWITCH_CTL
18pF
50V
50V
OPT
C2104
0 . 1 u F
16V
C2147
470
R2134
+5V_TU
+3.3V_S_TU
+1.8V_S_TU
18pF
50V
50V
C2118
+3.3V_TU
0 . 1 u F
C2168
CHB_TS_CLK
+5V_TU
TU_TS_SYNC
+5V_TU
0
OPT
R2136
0
OPT
R2104
BLM18PG121SN1D
L2104
0
R2169
CHB
MLB-201209-0120P-N2
L2106
0 . 1 u F
16V
C2123
0 . 1 u F
16V
C2183
0 . 1 u F
C2177
0
CHB
R2106
SDA0_3.3V
+3.3V_S_TU
CHB_TS_DATA
0
OPT
R2102
10uF
10V
C2163
CHB
SDA1_3.3V
100K
R2128
OPT
+1.8V_CHB_TU
0
OPT
R2101
SCL0_3.3V
+1.8V_M_TU
10uF
10V
C2160
CHB
0 . 1 u F
C2167
CHB
10uF
10V
C2161
CHB
220
CHB
R2114
SCL1_3.3V
220
CHB
R2116
S2_RESET
120-ohm
L2111
10uF
10V
C2159
CHB
33 CHB
R2124
33
CHB
R2122
100
CHB
R2121
0 . 1 u F
C2166
CHB
220
R2143
+3.3V_M_TU
MLB-201209-0120P-N2
L2103
0
R2137
22uF
C2181
0 . 1 u F
16V
OPT
C2111
+3.3V_S_TU
1K
OPT
R2139
RF_BOOSTER_CTL
+1.8V_M_TU
1K
R2166
22uF
10V
C2182
BLM18PG121SN1D
L2116
CHB
100pF
50V
50V
C2107
TU_RESET_SUB
TU_RESET
0 . 1 u F
16V
C2157
100uF
16V
16V
C2127
CHB
0 . 1 u F
16V
C2113
1K
OPT
R2112
0 . 1 u F
C2169
CHB
+3.3V_DE
+1.26V_TU
0 . 1 u F
16V
CHB
C2120
1K
OPT
R2113
+5V_TU
+1.8V_S_TU
1K
OPT
R2140
0 . 1 u F
16V
C2131
CHB
+3.3V_TU
100pF
50V
50V
C2112
100pF
50V
C2129
+3.3V_S_TU
+3.3V_Normal
18pF
50V
50V
OPT
C2102
0 . 1 u F
16V
CHB
C2121
2 . 2 u F
16V
C2178
FE_TS_DATA[0-7]
0 . 1 u F
C2165
CHB
BLM18PG121SN1D
L2115 CHB
22uF
16V
C2154
MMBT3906(NXP)
Q2105
E
B
C
RF_SWITCH_CTL_2
33 CHB
R2125
100uF
16V
16V
C2116
0 . 1 u F
16V
C2125
CHB
0 . 1 u F
16V
CHB
C2126
BLM18PG121SN1D
CHB
L2112
MLB-201209-0120P-N2
L2107
CHB
TU_TS_CLK
120-ohm
CHB
L2109
BLM18PG121SN1D
+5V_TU
22uF
16V
C2141
0 . 1 u F
16V
C2149
CHB_TS_VAL
120-ohm
CHB
L2108
BLM18PG121SN1D
MMBT3906(NXP)
Q2104
E
B
C
100pF
50V
50V
CHB
C2115
UFA55AL
NON_CHB_TUNER_V_S
TU2101
14
+3.3V
13
+1.2V
5
AS
12
GND
11
VIDEO
2
NC_2
10
NC_3
4
NC[RF_AGC]
1
NC_1
17
DIF_1
9
S I F
8
NC(IF_TP)
3
+B[+5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
UDA55AL
TU2101-*1
NON_CHB_TUNER_H_S
14
+3.3V
13
+1.2V
5
AS
12
GND
11
VIDEO
2
NC_2
10
NC_3
4
NC[RF_AGC]
1
NC_1
17
DIF_1
9
S I F
8
NC(IF_TP)
3
+B[+5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
220
R2135
4 . 7
R2167
AZ1117BH-1.8TRE1
IC2102
CHB
2
OUT
3
IN
1
ADJ/GND
AZ1117BH-ADJTRE1
IC2103
1
ADJ/GND
2
OUTPUT
3
INPUT
BLM18PG121SN1D
L2101
0 . 1 u F
16V
C2109
OPT
TDSB-H031F
TU2102
CHB_TUNER
1
SW_CTL1[NC]
2
SW_CTL2[NC]
3
SW_5V
4
S_3.3V
5
S_1.8V
6
TU_SCL
7
TU_SDA
8
M_1.8V
9
M_SIF
10
M_3.3V
11
M_CVBS
12
GND_1
13
SD_1.2V
14
SD_3.3V
15
TU_RESET
16
M_IF_AGC
17
M_DIF[N]
18
M_DIF[P]
19
SD_ERROR
20
SD_SYNC
21
SD_VALID
22
SD_MCL
23
SD_D0
24
NC
25
GND_2
26
GND_3
27
GND_4
28
GND_5
29
GND_6
30
GND_7
31
SD_2.5V[OPT]
37
SHIELD
32
SD_RESET
33
SIF/NC
34
S_CVBS
35
SD_SCL
36
SD_SDA
TDVJ-H131F
TU2101-*2
NON_CHB_TUNER_V_L
14
+ B 3 [ 3 . 3 V ]
13
+ B 2 [ 1 . 2 V ]
5
MOPLL_AS
12
GND
11
VIDEO
2
NC_2
10
NC
4
RF_AGC
1
NC_1
17
DIF_1[N]
9
S I F
8
NC_3
3
+B1[5V]
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
D I F _ 2 [ P ]
SHIELD
19
TDVJ-H101F
TU2101-*3
NON_CHB_TUNER_H_L
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
S I F
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
SHIELD
19
FE_TS_DATA[2]
FE_TS_DATA[5]
FE_TS_DATA[0]
FE_TS_DATA[7]
FE_TS_DATA[4]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[1]
DUAL COMPONENT
CLOSE TO PIN 25
IC2103
close to TUNER
1ST : EAN61507501, 2ND : EAN54428101
50
PIN 25~30 MUST BE SEPARATED TUNER GND
BCM35230
IC2102
C l o s e t o T u n e r
R1
R2
NON_CHB & CHB TUNER (KOR/USA)
CLOSE TO PIN 29
C l o s e t o T u n e r
ATSC_TUNER
VOUT = VREF *(1+R2/R1)
21
close to TUNER
close to TUNER
1ST : EAN61829801, 2ND : EAN544289201
C l o s e t o T u n e r
NON_CHB_LGIT_TUNER
NON_CHB_SANYO_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.
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.
LNB_INT
24
BCM35230
NON LNB
50
Non_DVB-S2 LNB Part_Allegro
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