LG 55LH45YD (CHASSIS:LC91B) 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.
LGDT_SDQ[10]
LGDT_SADDR[7]
LGDT_SADDR[5]
LGDT_SADDR[10]
LGDT_SADDR[1]
LGDT_SDQ[10]
LGDT_SDQ[9]
LGDT_SDQ[8]
LGDT_SDQ[4]
LGDT_SDQ[14]
LGDT_SDQ[6]
LGDT_SDQ[2]
LGDT_SDQ[9]
LGDT_SDQ[13]
LGDT_SDQ[12]
LGDT_SADDR[6]
LGDT_SDQ[2]
LGDT_SADDR[2]
LGDT_SDQ[15]
LGDT_SADDR[2]
LGDT_SADDR[0]
LGDT_SDQ[3]
LGDT_SADDR[6]
LGDT_SDQ[6]
LGDT_SDQ[7]
LGDT_SDQ[8]
LGDT_SADDR[8]
LGDT_SADDR[1]
LGDT_SDQ[12]
LGDT_SDQ[11]
LGDT_SDQ[5]
LGDT_SDQ[1]
LGDT_SADDR[4]
LGDT_SDQ[0]
LGDT_SDQ[11]
LGDT_SADDR[4]
LGDT_SADDR[10]
LGDT_SDQ[4]
LGDT_SDQ[5]
LGDT_SDQ[13]
LGDT_SADDR[3]
LGDT_SADDR[0]
LGDT_SADDR[3]
LGDT_SADDR[7]
LGDT_SDQ[0]
LGDT_SDQ[14]
LGDT_SDQ[15]
LGDT_SADDR[9]
LGDT_SDQ[1]
LGDT_SADDR[8]
LGDT_SADDR[5]
LGDT_SADDR[9]
LGDT_SDQ[3]
LGDT_SDQ[7]
LD1201
SAM2333
LOCK
A2[GN]
C
A1[RD]
+3.3V_DTMB
LGDT_SCAS
001:J4
FE_TS_SERIAL
LGDT_SBA[0]
001:J4
LGDT_SBA[1]
001:J4
C1217
22pF
50V
LGDT_SADDR[0-10]
C1201
10uF
10V
C1225
22pF
50V
X1200
30.4MHz
C1200
0.1uF
16V
R1209
100
R1203
4.7K
OPT
TU_SDA_3.3V
001:A6
SYNCLOCK
001:J6
LGDT_SBA[0]
001:J4
TU_SCL_3.3V
001:G3
LD1200
SAM2333
LDPC ERR
A2[GN]
C
A1[RD]
LGDT_SBA[1]
001:J4
LGDT_SCS
001:I4
FE_TS_DATA_CLK
IC1201-*1
M12L64164A-5TG
ELITE 64MBIT
26
A3
27
VDD_3
28
VSS_1
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC_1
37
CKE
38
CLK
39
UDQM
40
NC_2
41
VSS_2
42
DQ8
43
VDDQ_3
44
DQ9
45
DQ10
46
VSSQ_3
47
DQ11
48
DQ12
49
VDDQ_4
50
DQ13
17
CAS
3
VDDQ_1
6
VSSQ_1
16
WE
15
LDQM
14
VDD_2
13
DQ7
12
VSSQ_2
11
DQ6
10
DQ5
9
VDDQ_2
8
DQ4
7
DQ3
4
DQ1
5
DQ2
25
A2
24
A1
23
A0
2
DQ0
22
A10/AP
21
A12
1
VDD_1
20
A13
19
CS
18
RAS
51
DQ14
52
VSSQ_4
53
DQ15
54
VSS_3
+3.3V_DTMB
LGDT_SADDR[0-10]
R1208
100
LGDT_SWE
001:J4
FE_DEMOD_SCL
001:G5
+1.2V_DTMB
C1207
0.01uF
25V
R1200
0
+5V_TUNER
R1219
100
LGDT_SCKE
001:J2
R1207
100
SYNCLOCK
001:G4
R1220
200
TU_IF_OUT+
001:D3
LGDT_SRAS
001:J4
LGDT_SCS
001:J4
TU_SDA_3.3V
001:G3
R1206
100
/FE_RESET
004:AJ3
C1203
10uF
10V
+3.3V_DTMB
FE_TS_SYN
TU_IF_AGC
001:C3
C1239
10uF
10V
LGDT_SCAS
001:I4
R1213
1M
1/10W
5%
TU_SCL_5V
001:D2
TU_SDA_5V
001:D2
C1226
22pF
50V
R1202
1K
C1202
0.1uF
16V
+3.3V_DTMB
LGDT_SCLK
001:L4
BLKERR
001:G4
TU_SCL_3.3V
001:A5
C1215
1uF
OPT
C1206
0.01uF
25V
LGDT_SDQ[0-15]
FE_DEMOD_SDA
001:G6
LGDT_SCLK
001:J2
LGDT_SWE
001:I4
TU_IF_OUT-
001:D3
R1218
0
1/10W
5%
C1216
22pF
50V
+3.3V_DTMB
R1204
4.7K
OPT
IC1202
SSM6N15FU
0TFTH80001A
OPT
3
DRAIN2
2
GATE1
1
SOURCE1
4
SOURCE2
5
GATE2
6
DRAIN1
R1205
4.7K
+3.3V_DTMB
+3.3VA_DTMB
FE_TS_VAL_ERR
LGDT_SCKE
001:L4
IC1201
HY57V641620FTP
HYNIX 64MBIT
26
A3
27
VDD3
28
VSS1
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC1
37
CKE
38
CLK
39
UDQM
40
NC2
41
VSS2
42
DQ8
43
VDDQ3
44
DQ9
45
DQ10
46
VSSQ3
47
DQ11
48
DQ12
49
VDDQ4
50
DQ13
17
CAS
3
VDDQ1
6
VSSQ1
16
WE
15
LDQM
14
VDD2
13
DQ7
12
VSSQ2
11
DQ6
10
DQ5
9
VDDQ2
8
DQ4
7
DQ3
4
DQ1
5
DQ2
25
A2
24
A1
23
A0
2
DQ0
22
A10/AP
21
BA1
1
VDD1
20
BA0
19
CS
18
RAS
51
DQ14
52
VSSQ4
53
DQ15
54
VSS3
R1201
1K
BLKERR
001:J6
LGDT_SDQ[0-15]
LGDT_SRAS
001:I4
C1223
0.1uF
16V
C1224
0.1uF
16V
C1209
0.1uF
16V
C1233
0.1uF
16V
C1219
0.1uF
16V
C1228
0.1uF
16V
C1221
0.1uF
16V
C1234
0.1uF
16V
C1214
0.1uF
16V
C1210
0.1uF
16V
C1208
0.1uF
16V
C1220
0.1uF
16V
C1235
0.1uF
16V
C1212
0.1uF
C1229
0.1uF
16V
C1232
0.1uF
16V
C1237
0.1uF
16V
C1211
0.1uF
C1205
0.1uF
16V
C1213
0.1uF
16V
C1238
0.1uF
16V
C1222
0.1uF
16V
C1236
0.1uF
16V
C1204
0.1uF
16V
C1218
22pF
50V
C1227
22pF
50V
R1210
100
R1217
47
R1215
47
R1216
47
R1212
47
R1214
470
1/16W
5%
R1211
470
1/16W
5%
C1230
18pF
C1231
18pF
R1221 4.7K
R1227 4.7K
R1233
0
R1232
0
IC1200
LG3900
1
CMDC
2
AVDD33_1
3
AVSS_1
4
AIFINN
5
AIFINP
6
VREFN
7
VREFP
8
AVDD33_2
9
AVSS_2
10
I2CSEL
11
AGCOUT
12
TUNSCL
13
TUNSDA
14
VSS_1
15
VDD_1
16
GPIO[5]
17
GPIO[4]
18
VDD33_1
19
GPIO[3]
20
GPIO[2]
21
VSS_2
22
GPIO[1]
23
GPIO[0]
24
LOCK
25
nERROR
26
SCL
27
SDA
28
nRESET
29
TPVALID
30
TPDATA[0]
31
TPDATA[1]
32
VSS_3
33
TPDATA[2]
34
TPDATA[3]
35
TPDATA[4]
36
TPDATA[5]
37
VDD33_2
38
VDD_2
39
TPDATA[6]
40
TPDATA[7]
41
TPCLK
42
TPSOP
43
VSS_4
44
SADDR[3]
45
SADDR[2]
46
SADDR[1]
47
SADDR[0]
48
SADDR[10]
49
SBA[1]
50
SBA[0]
51
nSCS
52
VSS_5
53
nSRAS
54
nSCAS
55
VDD33_3
56
nSWE
57
SDQ[7]
58
SDQ[6]
59
VDD_3
60
SDQ[5]
61
SDQ[4]
62
SDQ[3]
63
VSS_6
64
SDQ[2]
65
SDQ[1]
66
SDQ[0]
67
VDD_4
68
VDD33_4
69
SDQ[15]
70
SDQ[14]
71
VSS_7
72
SDQ[13]
73
SDQ[12]
74
SDQ[11]
75
SDQ[10]
76
VSS_8
77
SDQ[9]
78
SDQ[8]
79
SCLK
80
SCKE
81
SADDR[9]
82
SADDR[8]
83
SADDR[7]
84
VDD33_5
85
VSS_9
86
SADDR[6]
87
SADDR[5]
88
VDD_5
89
SADDR[4]
90
OPM[0]
91
OPM[1]
92
OPM[2]
93
TMOD
94
VSS_10
95
XTALI
96
XTALO
97
VDD33_6
98
TESTSE
99
VDD_6
100
VSS_11
12 13
DEMODULATOR
2009. 1.15.
EAX60737402
DEMODULATOR LGDT3900
Close to 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
SDA_SUB/AMP
IR
+5V_ST
SCL_SUB/AMP
KEY1
KEY2
+3.3V_ST
R1318
100
R1317
100
C1314 0.1uF
16V
C1310
0.1uF
16V
C1307
0.1uF
C1315 1000pF 50V
C1311
1000pF
50V
C1309
100pF
50V
ZD1303
5.6V
AMOTECH
ZD1302
5.6V
AMOTECH
ZD1304
5.6V
AMOTECH
ZD1300
5.6V
CDS3C05HDMI1
ZD1301
5.6V
CDS3C05HDMI1
R1320
4.7K
R1319
4.7K
L1301
BLM18PG121SN1D
L1303
BLM18PG121SN1D
L1313
BLM18PG121SN1D
P1304
12507WS-12L
1
SCL
2
SDA
3
GND
4
KEY1
5
KEY2
6
5V_ST
7
GND
8
WARM_ST
9
IR
10
GND
11
3.3V
12
PWR_ON
13
IR_OUT
+5V_ST
+5V_ST
Q1301
2SC3052
IR-OUT
E
B
C
Q1300
2SC3052
IR-OUT
E
B
C
R1322
100
R1321
100
C1305
0.1uF
L1314
BLM18PG121SN1D
R1305
100
R1302
10K
IR-OUT
R1301
10K
IR-OUT
R1303
10K
IR-OUT
R1300
22
IR-OUT
R1304
47K
IR-OUT
R1325
4.7K
MDS61887701
M2
GASKET_M2
MDS61887701
M3
GASKET_M3
MDS61887701
M4
GASKET_M4
MDS61887701
M1
GASKET_M1
L1302
BLM18PG121SN1D
ZD1305
5.6V
AMOTECH
C1313
0.1uF
LED_ON
R1323
0
R1324
10K
13 13
IR & LED
CONTROL
IR & LED
close to wafer
Zener Diode is
2009. 1.15.
EAX60737402
EMI GASKET