DOWNLOAD LG 55LX9550-CA (CHASSIS:LC03M) Service Manual ↓ Size: 5.67 MB | Pages: 45 in PDF or view online for FREE

Model
55LX9550-CA (CHASSIS:LC03M)
Pages
45
Size
5.67 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
55lx9550-ca-chassis-lc03m.pdf
Date
PREV: LG 55LX9500-ZA (CHASSIS:LD03R) Service Manual

LG 55LX9550-CA (CHASSIS:LC03M) 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
CHB_VDEC_CN
15    100
GP2_BCM_ATSC
TW9910_DATA[0]
TW9910_DATA[1]
TW9910_DATA[2]
TW9910_DATA[3]
TW9910_DATA[4]
TW9910_DATA[5]
TW9910_DATA[6]
TW9910_DATA[7]
TW9910_DATA[0]
TW9910_DATA[1]
TW9910_DATA[2]
TW9910_DATA[3]
TW9910_DATA[4]
TW9910_DATA[5]
TW9910_DATA[6]
TW9910_DATA[7]
C1508
24pF
C1546
10uF
10V
+3.3V_CHB
C1545
10uF
10V
C1503
0.1uF
+1.8V_CHB
+3.3V_CHB
FE_TS_DATA_CHB
FE_TS_SYNC_CHB
L1508
BLM18PG121SN1D
TW9910_CLK
F3
+3.3V_ADC
L1507
BLM18PG121SN1D
C1535
24pF
FE_TS_VAL_ERR_CHB
+1.8V_ADC
IC1500
TW9910DANB2-GR 
0IPRP00630E
1
VDDE_1
2
SCLK
3
SDAT
4
PDN
5
RSTB
6
TMODE
7
NC_1
8
AVD_1
9
YMUX3
10
YMUX2
11
YGND
12
YMUX1
13
YMUX0
14
AVS_1
15
CIN0
16
AVD_2
17
AVS_2
18
NC_2
19
VSS_1
20
VS
21
HS
22
MPOUT
23
CLKX2
24
VSSE_1
25
VDDE_2
26
VD[15]
27
VD[14]
28
VD[13]
29
VD[12]
30
VD[11]
31
NC_3
32
VDD
33
VD[10]
34
VD[9]
35
VD[8]
36
VD[7]
37
VD[6]
38
VD[5]
39
VD[4]
40
VD[3]
41
VD[2]
42
VSS_2
43
NC_4
44
VD[1]
45
VD[0]/SIAD0
46
VSSE_2
47
XTI
48
XTO
C1536
0.1uF
C1543
0.1uF
C1525
0.1uF
C1524
0.1uF
C1541
0.1uF
C1533
0.1uF
C1519
0.1uF
C1500
0.1uF
C1534
0.1uF
L1504
BLM18PG121SN1D
X1500
27MHz
C1501
0.1uF
R1505
1M
L1500
BLM18PG121SN1D
C1513
0.1uF
TU_CVBS_CHB
7:AI7;7:AJ21
C1504
0.1uF
C1528
10uF
10V
+3.3V_ADC
AR1501
22
C1505
0.1uF
C1538
24pF
C1527
10uF
10V
R1504
0
C1509
24pF
C1532
0.1uF
R1513
22
C1502
0.1uF
TW9910_DATA[0-7]
R1524
1M
C1549
0.1uF
C1518
0.1uF
R1507
100
C1531
0.1uF
TW9910_CLK
+1.8V_ADC
TW9910_RESET
9:G3
FE_TS_CLK_CHB
+1.8V_CHB
X1501
27MHz
C1548
0.1uF
+1.8V_ADC
L1503
BLM18PG121SN1D
+3.3V_ADC
L1506
BLM18PG121SN1D
C1537
0.1uF
TW9910_DATA[0-7]
C1512
0.1uF
AR1502
22
AR1500
22
R1500
100
CHB_RESET
R1521
0
IC1501
LG1140
EAN60750501
1
VDDIO_1
2
D1_DATA4
3
D1_DATA3
4
D1_DATA2
5
VSSIO_1
6
D1_CLK
7
D1_DATA1
8
VDDCORE_1
9
VSSCORE_1
10
D1_DATA0
11
CI0_CLK
12
CI0_DATA
13
CI0_VALID
14
CI0_SOP
15
VDDIO_2
16
CI1_DATA
17
CI1_VAILD
18
CI1_CLK
19
CI1_SOP
20
SDA0
21
SCL0
22
VDDCORE_2
23
SCK
24
SS
25
VSSIO_2
26
MISO
27
MOSI
28
SPI_MODE[0]
29
VDDIO_3
30
SPI_MODE[1]
31
CTL2/FLAGC
32
VCC_4
33
PA0/INT0#
34
PA1/INT1#
35
VDDCORE_3
36
VSSCORE_2
37
PA4/FIFOADR0
38
TSVO0_CLK
39
VSSIO_3
40
TSVO0_SOP
41
TSVO0_DATA
42
IRQ_CHB_N
43
SPLL_AVSS
44
SPLL_AVDD
45
VDDIO_XTAL
46
XTAL27I
47
XTAL27O
48
VDDCORE_4
49
VSSCORE_3
50
TMOD
51
EXT_RESET_N
52
TRST
53
TCK
54
D1_DATA7
55
D1_DATA6
56
D1_DATA5
IC1503
AP1117E18G-13 
2
OUT
3
IN
1
ADJ/GND
R1531
1
+1.8V_NORMAL_CHB
C1552
10uF
10V
C1554
0.1uF
16V
+1.8V_NORMAL_CHB
R1528
0
MODEL_OPT_4
CHB_RESET
R1529
0
TW9910_RESET
+1.8V_CHB
C1558
0.1uF
FE_TS_SYNC
10:C1;I3
FE_TS_DATA_CLK
10:C1;I3
FE_TS_SERIAL
10:C1;I3
FE_TS_VAL_ERR
9:G5;I3
+3.3V_TU
+3.3V_TU
SDA0_3.3V
SCL0_3.3V
SCL0_3.3V
SDA0_3.3V
R1501
33
R1502
33
R1522
33
R1523
33
DTV_ATV_SELECT
L1510
0
0xF2
0x88
POWER for CHB
 VIDEO DECODER for CHB
 CHANNEL BROWSER
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.
CHB_CI
2009.06.18
CI_D[3]
CI_A[4]
MAIN_FE_TS_DATA[4]
MAIN_FE_TS_DATA[5]
MAIN_FE_TS_DATA[6]
NAND_DATA[3]
NAND_DATA[6]
CI_A[10]
CI_A[0]
CI_A[11]
CI_A[9]
CI_A[5]
NAND_DATA[7]
CI_OUTDATA[0]
CI_D[3]
MAIN_FE_TS_DATA[2]
CI_A[9]
CI_D[1]
CI_OUTDATA[6]
CI_OUTDATA[5]
CI_OUTDATA[1]
CI_D[4]
MAIN_FE_TS_DATA[0]
CI_A[12]
NAND_DATA[5]
CI_A[8]
NAND_DATA[0]
CI_A[10]
MAIN_FE_TS_DATA[7]
CI_A[8]
CI_A[3]
CI_A[7]
CI_A[0]
CI_A[13]
CI_A[2]
CI_D[7]
CI_A[1]
CI_D[7]
CI_D[6]
CI_A[14]
CI_A[4]
CI_D[4]
CI_D[2]
CI_A[2]
CI_A[11]
CI_OUTSTART
MAIN_FE_TS_DATA[3]
CI_D[0]
CI_D[5]
CI_D[1]
CI_A[13]
MAIN_FE_TS_DATA[1]
CI_A[7]
CI_A[3]
CI_D[2]
CI_A[5]
NAND_DATA[4]
CI_OUTDATA[3]
CI_OUTDATA[2]
NAND_DATA[2]
CI_D[0]
CI_A[6]
NAND_DATA[1]
CI_A[6]
CI_A[1]
CI_A[12]
CI_OUTVALID
CI_OUTDATA[4]
CI_OUTDATA[7]
CI_D[6]
CI_D[5]
CI_OUTCLK
CI_OUTCLK
007:H5;016:V14
NAND_WEb
007:C2;007:E5
AR1608
10K
CI
AR1606
10K
CI
IC1600
MC74LCX541DTR2G
CI
3
D1
2
D0
4
D2
1
OE1
6
D4
5
D3
7
D5
8
D6
9
D7
10
GND
11
O7
12
O6
13
O5
14
O4
15
O3
16
O2
17
O1
18
O0
19
OE2
20
VCC
/CI_IREQ
007:H5;016:G11
/CI_WE
016:H12
AR1604
33
CI
/CI_WE
/CI_IOIS16
[GP41]
016:AJ3
AR1607
10K
CI
D3.3V
CI_A[0-13]
007:E7;016:C13
R1621
10K
CI
NAND_DATA[0-7]
C1601
0.1uF
16V
CI
/CI_IOWR
016:T12
MAIN_FE_TS_DATA[0-7]
Q1601
RSR025P03
CI
S
D
G
R1618
10K
OPT
R1601
47
CI
IC1601
74LVC245A
CI
3
A1
2
A0
4
A2
1
DIR
6
A4
5
A3
7
A5
8
A6
9
A7
10
GND
11
B7
12
B6
13
B5
14
B4
15
B3
16
B2
17
B1
18
B0
19
OE
20
VCC
AR1613
33
CI
R1625
10K
OPT
C1603
0.1uF
CI
/CI_WAIT
007:E6;016:S10
CI_MOD_RESET [GP49]
007:G6;016:AJ2
Q1600
2SC3052
CI
E
B
C
AR1602
33
CI
C1606
0.1uF
16V
CI
CI_A[0-14]
+5V_NORMAL
R1626
10K
OPT
/CI_CD2
007:H5;016:AJ2
[GP38]
AR1610
33
CI
AR1612
33
CI
/CI_CE1
016:G13;016:H26
/CI_VS1
016:T13
/CI_OE
016:G13
R1611
47 CI
CI_MOD_RESET
007:G6;016:S10
EBI_CS
007:E7;007:E6;016:K26
/CI_CD1
007:H6;016:S15
CI_D[0-7]
016:AG22
AR1614
33
CI
/CI_OE
MAIN_FE_TS_DATA_CLK
C1605
0.1uF
CI
P1600
10067972-000LF
CI
G1
G2
57
21
52
16
10
47
41
5
36
59
23
45
54
18
49
43
13
7
38
2
25
56
20
51
15
9
46
40
4
35
58
22
53
17
11
48
42
12
6
37
1
24
55
19
50
44
14
8
39
3
26
60
27
61
28
62
29
63
30
64
31
32
33
34
65
66
67
68
69
C1609
47uF
16V
CI
/CI_INPACK
016:AL9
AR1615
33
CI
MAIN_FE_TS_VAL_ERR
+5V_CI_Vs
C1602
0.1uF
CI
CI_5V_CTL
[GP27]
007:H7
R1600
47
CI
NAND_ALE
007:C2;007:E6
/CI_IORD
016:H24
/CI_WAIT 007:E6;016:AJ3
R1617
10K
/CI_CE2
016:H25;016:AJ2
AR1603
33
CI
/CI_VS1
[GP26] 016:AJ3
/CI_IREQ
[GP39]
007:H5;016:AJ3
R1620
10K
OPT
EBI_RW
007:E6
R1603
10K
CI
R
1
6
1
9
2
2
K
AR1616
33
CI
/CI_IOWR
016:H25
/CI_CD1
007:H6;016:AJ3
AR1611
33
CI
NAND_REb
007:C3;007:E6
C1608
0.1uF
16V
CI
/CI_IOIS16
016:I8
/CI_IORD
016:T13
R1622
10K
/CI_CE2
016:T13;016:AJ2
/CI_CE1
R1623
10K
/CI_INPACK
016:O9
C1600
0.1uF
16V
CI
EBI_WE
007:E6
R1616
10K
CI
R1624
10K
OPT
AR1609
10K
CI
AR1601
33
CI
/CI_SEL 007:H5
/CI_CE2
016:H25;016:T13
CI_OUTCLK,CI_OUTDATA[0-7],CI_OUTSTART,CI_OUTVALID
/CI_CE1
016:G13;016:AJ2
EBI_CS
007:E7;007:E6;016:AL23
+5V_NORMAL
D3.3V
AR1600
33
CI
CI_D[0-7]
016:F16
MAIN_FE_TS_SYNC
C1604
0.1uF
CI
+5V_CI_Vs
D3.3V
R1602
47
CI
/CI_CD2
007:H5;016:S7
AR1605
33
CI
R1610
100
CI
R1609
100 CI
R1612
10K
OPT
R1613
10K
CI
R1614
22K
CI
R1608
0
CI
R1607
100
OPT
R1606
100
OPT
R1605
0
CI
R1604
100
OPT
C1610
0.1uF
16V
CI
C1607
4.7uF
16V
CI
R1615
2.2K
CI
EUROBBTV
45
DVB-CI PULL-UP (Near CI Slot)
External Demod.
DVB-CI PULL-DOWN (Near CI Slot)
CI CONTROL BUFFER
CI POWER ENABLE CONTROL
THERMAL
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.
09.10
AMP_SUB_NTP
21    100
GP2_BCM_ATSC
R2151
0
AMP_RESET_N
L2102
BLM18PG121SN1D
+3.3V_NORMAL
SPK_Woofer-
C2130
22pF
50V
3AMP OPT
R2135
12
C2152
22000pF
50V
C2147
10uF
35V
R2157
3.3K
R2129
12
SPK2_R+
L2100
BLM18PG121SN1D
R2123
4.7K
R2119
0
3AMP OPT
C2103
0.1uF
16V
0.1uF
C2109
16V
R
2
1
6
0
1
0
0
C2117
1000pF
50V
+1.8V_AMP
R2156
0
C2155
0.01uF
50V
3AMP OPT
R2144
4.7K
C2134
22000pF
50V
C2159
390pF
50V
R2127
12
C2126
22pF
50V
3AMP OPT
+24V_AMP
0.01uF
C2173
50V
3AMP OPT
C2115
1000pF
50V
SPK_Woofer+
D2102
100V
1N4148W
3AMP OPT
AUD_MASTER_CLK
R2122
3.3
3AMP OPT
C2165
0.47uF
50V
R2107
100
C2150
1uF
25V
D2101
100V
1N4148W
3AMP OPT
L2107
AD-9060
15uH
2S
1S
1F
2F
C2160
390pF
50V
SPK2_L+
C2151
22000pF
50V
R2136
12
0.1uF
C2119
L2106
AD-9060
15uH
2S
1S
1F
2F
C2163
390pF
50V
C2161
390pF
50V
R2100
56
POWER_DET
R2118
100
SPK2_R-
SPK2_L-
C2128
1uF
25V
AMP_MUTE1
R2161
10K
C2145
1uF
25V
R
2
1
2
5
1
0
0
3AMP OPT
R2103
100
C2108
100pF
50V
D2104
100V
1N4148W
3AMP OPT
0.1uF
C2154
50V
C2158
390pF
50V
0.1uF
C2132
16V
L2108
AD-9060
15uH
2S
1S
1F
2F
R2101
100
+24V_AMP
R2147
3.3
3AMP OPT
SCL2_3.3V
SPK2_L-
SDA2_3.3V
L2101
BLM18PG121SN1D
R2132
12
0.1uF
C2169
50V
R2111
56
AUD_SCK
R2133
12
R2109
100
R2149
3.3
3AMP OPT
C2125
10uF
10V
3AMP OPT
C2140
1uF
25V
AUD_SCK
R2152
0
AUD_LRCH
C2157
10uF
35V
R2131
12
+1.8V_AMP
0.1uF
C2172
50V
P2100
FW25001-02(SPK 2P) 
1
2
R2102
100
0.01uF
C2176
50V
3AMP OPT
P2101
WAFER-ANGLE
1
2
3
4
IC2100
NTP-7000
EAN60969601
DEV
1
BST1A
2
VDR1A
3
/RESET
4
AD
5
DGND_1
6
GND_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
GND
15
DGND_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR0
23
MONITOR1
24
MONITOR2
25
/FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
EP_PAD
C2135
22000pF
50V
C2122
22pF
50V
3AMP OPT
L2103
BLM18PG121SN1D
C2166
0.47uF
50V
C2148
1uF
25V
0.01uF
C2177
50V
3AMP OPT
R2155
0
C2162
390pF
50V
R2143
4.7K
C2144
1uF
25V
R2121
3.3
3AMP OPT
R2140
4.7K
D2100
100V
1N4148W
3AMP OPT
0.1uF
C2167
50V
C2146
10uF
35V
R2110
100
C2164
0.47uF
50V
C2143
22000pF
50V
C2141
1uF
25V
R2139
4.7K
+1.8V_AMP
R2146
3.3
3AMP OPT
AUD_LRCK
AMP_MUTE1
C2116
33pF
50V
SDA2_3.3V
+24V_AMP
C2123
22pF
50V
3AMP OPT
0.1uF
C2118
R2158
3.3K
C2121
33pF
50V
0.1uF
C2133
16V
R2138
12
R2105
100
C2101
10uF
10V
3AMP OPT
IC2101
NTP-7000
EAN60969601
DEV
1
BST1A
2
VDR1A
3
/RESET
4
AD
5
DGND_1
6
GND_IO
7
CLK_I
8
VDD_IO
9
DGND_PLL
10
AGND_PLL
11
LF
12
AVDD_PLL
13
DVDD_PLL
14
GND
15
DGND_2
16
DVDD
17
SDATA
18
WCK
19
BCK
20
SDA
21
SCL
22
MONITOR0
23
MONITOR1
24
MONITOR2
25
/FAULT
26
VDR2B
27
BST2B
28
PGND2B_1
29
PGND2B_2
30
OUT2B_1
31
OUT2B_2
32
PVDD2B_1
33
PVDD2B_2
34
PVDD2A_1
35
PVDD2A_2
36
OUT2A_1
37
OUT2A_2
38
PGND2A_1
39
PGND2A_2
40
BST2A
41
VDR2A
42
NC
43
VDR1B
44
BST1B
45
PGND1B_1
46
PGND1B_2
47
OUT1B_1
48
OUT1B_2
49
PVDD1B_1
50
PVDD1B_2
51
PVDD1A_1
52
PVDD1A_2
53
OUT1A_1
54
OUT1A_2
55
PGND1A_1
56
PGND1A_2
57
EP_PAD
R2142
4.7K
R2120
100
+1.8V_AMP
C2142
22000pF
50V
AUD_LRCH
C2113
100pF
SPK2_R+
C2124
22pF
50V
3AMP OPT
SCL2_3.3V
AUD_MASTER_CLK
R2154
0
0.1uF
C2168
50V
C2100
10uF
10V
3AMP OPT
D2105
100V
1N4148W
3AMP OPT
POWER_DET
R
2
1
5
9
1
0
0
C2105
10uF
10V
3AMP OPT
+3.3V_NORMAL
SPK_Woofer-
R2124
4.7K
0.01uF
C2174
50V
3AMP OPT
C2104
10uF
10V
3AMP OPT
C2149
22000pF
50V
0.1uF
C2107
16V
C2138
1000pF
50V
R2141
4.7K
C2127
10uF
10V
3AMP OPT
R2106
100
C2156
0.01uF
50V
3AMP OPT
L2105
BLM18PG121SN1D
+1.8V_AMP
C2139
1000pF
50V
0.1uF
C2170
50V
SPK2_R-
C2112
1000pF
50V
C2102
0.1uF
16V
C2110
100pF
R2104
100
0.1uF
C2137
50V
C2106
100pF
50V
R2150
3.3
3AMP OPT
R2145
3.3
3AMP OPT
+24V_AMP
R2134
12
C2114
33pF
50V
L2104
BLM18PG121SN1D
SPK_Woofer+
D2103
100V
1N4148W
3AMP OPT
R2153
0
0.1uF
C2136
50V
R2128
12
C2131
22pF
50V
3AMP OPT
C2129
1uF
25V
R2162
0
3AMP OPT
R
2
1
2
6
1
0
0
3AMP OPT
SPK2_L+
C2153
22000pF
50V
R2148
3.3
3AMP OPT
0.1uF
C2171
50V
+1.8V_AMP
R2137
12
AMP_RESET_N
R2130
12
0.01uF
C2178
50V
3AMP OPT
C2111
1000pF
50V
R2108
100
0.01uF
C2175
50V
3AMP OPT
C2120
33pF
50V
AUD_LRCK
Woofer AMP.
Development Item(Slim Depth)
 Sub AMP.
SPEAKER2_L
SPEAKER2_R
Woofer
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.
GP2_BCM_ATSC
09/10/xx
LG_LOGO_LE9500
22    100
Q2200
2SC3052
E
B
C
+3.5V_ST
R2200
100
R2229
0
1/10W
+5V_NORMAL
LED_B/LG_LOGO
R2228
33
1/10W
OPT
P2200
12507WR-04L
1
2
3
4
5
D2200
5.6V
CDS3C05HDMI1
OPT
LG LOGO FOR LE9500
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