Read LG 42LW5500-ZE / 42LW550T-ZE / 42LW550W-ZE / 42LW551C-ZE / 42LW5590-ZE (CHASSIS:LD12C) Service Manual online
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.
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.
FE_TS_DATA[1]
FE_TS_DATA[3]
FE_TS_DATA[6]
FE_TS_DATA[5]
FE_TS_DATA[4]
FE_TS_DATA[0]
FE_TS_DATA[2]
FE_TS_DATA[7]
C2210
0.1uF
16V
R2258
0
0
DVB_TC/TCS_F/NIM
C2244
10uF
10V
10uF
10V
DVB_S
R2249
0
POWER_ON/OFF2_1
+3.3V_TU
R2253
220
+2.5V_TU
+1.25V_TU
TS_VAL_ERR
R2292
0
H/NIM
AR2200-*2
33
33
DVB_S
C2208
0.1uF
16V
DVB_S
R2263
0
0
DVB_T2/CN_F/NIM_BR
R2268
0
0
C2289
10uF
16V
TU_TS_SYNC
IC2208
AP2132MP-2.5TRG1
EAN61387601
3
VIN
2
EN
4
VCTRL
1
PG
5
NC
6
VOUT
7
ADJ
8
GND
9
[EP]
Q2203
2SC3052
E
B
C
R2269
0
0
DVB_TC/TCS_F/NIM
R2247
0
SCART
+1.25V_TU
C2255
22uF
16V
R2246
10K
10K
BOOSTER
C2246
0.1uF
0.1uF
DVB_S
C2203
0.1uF
16V
0.1uF
16V
RF_SW_CTL
+3.3V_TU
C2213
0.1uF
16V
0.1uF
16V
EU_F/NIM
+5V_Normal
Q2204
MMBT3906(NXP)
E
B
C
IC2203
NL17SZ08DFT2G
DVB_TC/TCS_F/NIM
3
GND
2
IN_A
4
OUT_Y
1
IN_B
5
VCC
C2231
0.1uF
16V
16V
AR2202-*2
33
33
DVB_S
L2207
MLB-201209-0120P-N2
Q2201
MMBT3906(NXP)
DVB_S
E
B
C
RF_BOOSTER_CTL
RF_SWITCH_CTL
SCL0_3.3V
CHBO_TS_CLK
+1.8V_TU
TU_TS_VAL
+5V_TU
R2237
82
82
DVB_S
R2291
75
OPT
R2231
0
BOOSTER
+3.3V_TU
C2228
0.1uF
16V
DVB_S
C2268
0.1uF
16V
0.1uF
16V
OPT
C2288
0.1uF
16V
0.1uF
16V
DVB_S
TW9910_RESET
C2247
0.1uF
16V
0.1uF
16V
DVB_S
R2241
0
H/NIM
R2235
2.2K
BOOSTER
TU_SIF
+5V_TU
TU_RESET
SDA0_3.3V
C2271
0.1uF
0.1uF
16V
OPT
NIM_TS_CLK
C2287
10uF
10V
DVB_S
10uF
10V
DVB_S
CHBO_TS_SYNC
R2205
0
F/NIM
C2243
10uF
10V
DVB_S
R2211
10K
OPT
+3.3V_TU
C2245
10uF
10V
DVB_S
R2226-*1
0
0
CN
R2233
100K
C2223
100pF
50V
DVB_S
100pF
50V
DVB_S
C2234
0.01uF
50V
0.01uF
50V
BOOSTER
C2262
0.1uF
16V
0.1uF
16V
C2286
10uF
6.3V
6.3V
DVB_S
R2229
100
100
TU_CVBS
R2214
11K
1%
11K
1%
NON_CN
RF_SWITCH_CTL_2
C2284
100pF
50V
100pF
50V
DVB_S
+5V_TU
ATV_OUT
+3.3V_S2_TU
TU_TS_CLK
R2202
51
51
1/16W
5%
5%
DVB_S
R2213
11K
1%
11K
1%
R2252
220
+3.3V_TU
R2293
0
H/NIM
R2248
0
OPT
R2226-*2
33
33
DVB_S
AR2201-*1
0
0
CN
+3.3V_S2_TU
C2226
0.1uF
0.1uF
16V
DVB_S
+3.3V_Normal
TU_RESET_SUB
C2279
0.1uF
16V
0.1uF
16V
EU_F/NIM
+3.3V_S2_DE
+1.8V_TU
C2290
10uF
16V
+3.3V_TU
AR2201-*2
33
33
DVB_S
R2298
1
1
DVB_S
TU_TS_ERR
C2259
0.1uF
16V
0.1uF
16V
NIM_TS_SYNC
C2242
0.1uF
0.1uF
OPT
C2285
0.1uF
16V
DVB_S
C2201
0.1uF
0.1uF
16V
OPT
R2266
0
0
R2243
0
NON_DVB_S
IF_AGC
+5V_TU
R2210
10K
10K
L2201
BLM18PG121SN1D
BOOSTER
S2_RESET
AR2200-*1
0
0
CN
C2218
4700pF
50V CN
4700pF
50V CN
R2240
0
EU_F/NIM
+5V_TU
R2267
0
0
C2212
33pF
33pF
DVB_S
CHBO_TS_VAL_ERR
R2277
0
DVB_S
R2209
0 RF_SW_CTL
+1.25V_TU
AR2202
47
EU_F/NIM
C2227
100pF
50V
100pF
50V
TU2201-*2
TDVJ-H031F
TDVJ-H031F
LATIN_TUNER_H
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
SIF
8
NC(IF_TP)
3
+B
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2
19
SHIELD
NIM_VAL_ERR
C2261
0.1uF
16V
0.1uF
16V
FE_TS_DATA[0-7]
0.1uF
C2291
OPT
+5V_Normal
R2250
1K
OPT
AR2200
47
EU_F/NIM
LNB_OUT
C2292
1uF
1uF
OPT
C2205
100pF
50V
100pF
50V
+3.3V_TU
C2204
100pF
50V
100pF
50V
DVB_S
TS_VAL_ERR
+2.5V_TU
L2202
MLB-201209-0120P-N2
DVB_S
TU_TS_VAL
C2206
1000pF
50V
DVB_S
C2230
10uF
10V
10uF
10V
DVB_S
C2224
100pF
50V
DVB_S
R2242
10K
BOOSTER
SDA1_3.3V
R2230
4.7K
DVB_S
TU_TS_ERR
IF_P
R2203
100
DVB_S
SCL1_3.3V
R2284
0
DVB_S
C2276
10uF
10V
EU_F/NIM
10uF
10V
EU_F/NIM
R2234
470
DVB_S
LNB_TX
AR2201
47
EU_F/NIM
R2270
1
1
EU_F/NIM
AR2202-*1
0
0
CN
TU_TS_CLK
+5V_TU
TU_TS_SYNC
C2249
0.1uF
16V
0.1uF
16V
R2254
200
SCART
C2222
100pF
50V
NON_DVB_S
100pF
50V
NON_DVB_S
C2232
10uF
10V
DVB_S
C2252
0.1uF
0.1uF
16V
IF_N
+3.3V_S2_LNB
C2248
0.1uF
0.1uF
DVB_S
L2204
MLB-201209-0120P-N2
DVB_S
C2209
33pF
33pF
OPT
R2283
0
DVB_S
R2204
0
F/NIM
C2220
1000pF
50V CN
1000pF
50V CN
L2203
MLB-201209-0120P-N2
DVB_S
C2207
0.1uF
DVB_S
C2225
0.1uF
16V
NON_DVB_S
+3.3V_TU
+3.3V_S2_DE
Q2202
MMBT3906(NXP)
BOOSTER
E
B
C
CHBO_TS_SERIAL
Q2205
MMBT3906(NXP)
SCART
E
B
C
C2260
22uF
16V
+3.3V_S2_LNB
R2251
1K
OPT
R2208
2.2K
2.2K
DVB_S
C2258
22uF
16V
C2238
0.1uF
16V
R2206
0
BOOSTER
R2255
200
SCART
R2226
47
47
EU_F/NIM
R2212
20K
1%
20K
1%
C2235
0.1uF
16V
DVB_S
L2209
BLM18PG121SN1D
120-ohm
DVB_S
C2214
100uF
16V
16V
CN
C2215
10uF
16V
CN
L2208
MLB-201209-0120P-N2
C2216
22uF
16V
CN
C2217
10uF
16V
CN
TU2202-*2
TDFR-C256D
CN_VERTICAL_ALTOBEAM
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2202-*3
TDFR-C236D
CN_HORIZONTAL_ALTOBEAM
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2202-*4
TDFR-C056D
CN_VERTIAL_LG3911
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2202-*5
TDFR-C036D
CN_HORIZONTAL_LG3911
1
RF_S/W_CNTL
2
BST_CNTL
3
+B1[+5V]
4
NC[RF_AGC]
5
NC_1
6
SCLT
7
SDAT
8
NC_2
9
SIF
10
NC_3
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
NC_4
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
L2206
270nH
270nH
NON_DVB_S
L2210
270nH NON_DVB_S
270nH NON_DVB_S
C2237
18pF
50V
50V
OPT
C2241
18pF
50V
18pF
50V
OPT
C2219
62pF
50V
62pF
50V
NON_DVB_S
C2221
62pF
50V
62pF
50V
NON_DVB_S
L2206-*1
0
DVB_S
L2210-*1
0
DVB_S
C2202
20pF
50V
20pF
50V
NON_DVB_S
C2211
20pF
50V
20pF
50V
NON_DVB_S
L2205
1uH
NON_DVB_S
R2215
22
22
R2216
22
22
TU2201-*1
TDTR-T056F
TDTR-T056F
TAIWAN_BR_V
14
+B3[3.3V]
13
+B2[1.26V]
5
NC_2
12
GND
11
VIDEO
2
BST_CNTL
10
NC_4
4
NC_1[RF_AGC]
1
RF_S/W_CTL
17
DIF_1[N]
9
SIF
8
NC_3
3
+B[5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
IC2204
AP2114H-2.5TRG1
1
GND
2
VOUT
3
VIN
TU2202
TDFR-G156D
EU_F/NIM_DVB_TC_V
1
NC_1
2
BST_CNTL
3
+B1[5V]
4
NC_2[RF_AGC]
5
NC_3
6
SCLT
7
SDAT
8
NC_4
9
SIF
10
NC_5
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2202-*1
TDFR-G256D
EU_F/NIM_DVB_T2_V
1
NC_1
2
BST_CNTL
3
+B1[5V]
4
NC_2[RF_AGC]
5
NC_3
6
SCLT
7
SDAT
8
NC_4
9
SIF
10
NC_5
11
VIDEO
12
GND
13
+B2[1.2V]
14
+B3[3.3V]
15
RESET
16
+B4[2.5V]
17
SCL
18
SDA
19
ERR
20
SYNC
21
VALID
22
MCL
23
D0
24
D1
25
D2
26
D3
27
D4
28
D5
29
D6
30
D7
31
SHIELD
TU2203
TDFQ-G031D
EU_F/NIM_DVB_TCS_V
1
NC_1
2
NC_2
3
NC_3
4
S2_TU[3.3V]
5
NC_4
6
TU_SCL
7
TU_SDA
8
T_1.8V
9
T_SIF
10
NC_5
11
T_CVBS
12
GND_1
13
TD_1.2V
14
T_3.3V
15
T_TU_RESET
16
NC_6
17
TD_SCL
18
TD_SDA
19
T/C/S2_ERROR
20
T/C/S2_SYNC
21
T/C/S2_VALID
22
T/C/S2_MCL
23
T/C/S2_D0
24
T/C/S2_D1
25
T/C/S2_D2
26
T/C/S2_D3
27
T/C/S2_D4
28
T/C/S2_D5
29
T/C/S2_D6
30
T/C/S2_D7
31
S2_1.25V
39
SHIELD
32
S2_RESET
33
S2_3.3V
34
S2_F22
35
S2_SCL
36
S2_SDA
37
GND_2
38
S2_LNB
R2214-*1
10K
10K
1/16W
1%
1%
CN
D2201
3.0SMCJ20A(suzhougrande)
3.0SMCJ20A(suzhougrande)
DVB_S
IC2202
AZ1117BH-1.8TRE1
DVB_S
1
ADJ/GND
2
OUT
3
IN
TU2201
TDTJ-S131D
TDTJ-S131D
AU_ASIA_TUNER_V
14
+B3[3.3V]
13
+B2[1.2V]
5
MOPLL_AS
12
GND
11
VIDEO
2
NC_1
10
NC_3
4
RF_AGC
1
ANT_PWR
17
DIF_1[N]
9
SIF
8
NC_2
3
+B1[5V]
16
IF_AGC_CNTL
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
TU2201-*3
TDTJ-S101D
TDTJ-S101D
AU_ASIA_H/NIM_H
14
+B3[3.3V]
13
+B2[1.2V]
5
MOPLL_AS
12
GND
11
VIDEO
2
NC_1
10
NC_3
4
RF_AGC
1
ANT_PWR
17
DIF_1[N]
9
SIF
8
NC_2
3
+B1[5V]
16
IF_AGC
7
SDA
6
SCL
15
RESET
18
DIF_2[P]
19
SHIELD
R2207
2.2K
2.2K
DVB_S
6432
6432
TU2203-*1
TDFQ-G001D
DVB_TCS_H
1
NC_1
2
NC_2
3
NC_3
4
S2_TU[3.3V]
5
NC_4
6
TU_SCL
7
TU_SDA
8
T_1.8V
9
T_SIF
10
NC_5
11
T_CVBS
12
GND_1
13
TD_1.2V
14
T_3.3
15
T_TU_RESET
16
NC_6
17
TD_SCL
18
TD_SDA
19
T/C/S2_ERROR
20
T/C/S2_SYNC
21
T/C/S2_VALID
22
T/C/S2_MCL
23
T/C/S2_D0
24
T/C/S2_D1
25
T/C/S2_D2
26
T/C/S2_D3
27
T/C/S2_D4
28
T/C/S2_D5
29
T/C/S2_D6
30
T/C/S2_D7
31
S2_1.25V
39
SHIELD
32
S2_RESET
33
S2_3.3V
34
S2_F22
35
S2_SCL
36
S2_SDA
37
GND_2
38
S2_LNB
ERROR & VALID PIN
F/NIM_Brazil
close to Tuner
BOOSTER
H/NIM
F/NIM
F/NIM_T/C
H/NIM & F/NIM & T/C/S2 Combo Tuner
F/NIM_T2
BOOSTER
DVB_S
H/NIM
TC_S_F/NIM: use EU_DVB-T/C F/NIM
EU_F/NIM: use EU_F/NIM
H/NIM
(Brazil)
close to IF line
close to TUNER
RF_SW_CTL
F/NIM
H/NIM
SCART: use Scart Jack
BOOSTER
BOOSTER: use BOOSTER_CTL
TUNER SINGLE
DVB-T/C/S2
F/NIM_CN
R2
RF_SW_CTL
<EU, China, Brazil,S2>
(Brazil,Taiwan)
IC2204
CN : use China F/NIM
NON_DVB_S: use H/NIM and F/NIM
CN_F/NIM_BR
F/NIM
DVB_S: use DVB-T/C/S2 combo Tuner
BOOSTER
Close to the tuner
RF_SW_CTL: use RF_SWITCH_CTL
DUAL COMPONENT
(Eu,Aisa)
BOOSTER
(AU,Latin)
CN_F/NIM_BR
TC_S_F/NIM
F/NIM
+1.23V_TU (CN)
SCART
+1.25V_TU (EU)
F/NIM: use F/NIM and DVB-T/C/S2 combo Tuner
close to TUNER
F/NIM
OPTION:SCART
2A
OPTION TABLE
H/NIM: use H/NIM
R1
close to TUNER
Surge protectioin
EU_F/NIM
Tuner to CI Slot
close to TUNER
CN
Non_DVB_S
TC_S_F/NIM
1ST:T-AP2114H(EAN61573601) / 2ND:T-TJ3940S (EAN61573501)
Vout=0.6*(1+R1/R2)
close to TUNER
BOOSTER
SCART
H/NIM
CN_F/NIM_BR: use F/NIM(China, BRZIL)
Max 217mA
SCART
EU_F/NIM
(EU)
BCM35230
TC_S_F/NIM
close to TUNER
Close to Tuner #38 pin
(China)
BOOSTER
RF_SW_CTL
Max 1.5A
SCART
H/NIM
close to TUNER
Non_DVB_S
Non_DVB_S
Non_DVB_S
Non_DVB_S
Non_DVB_S
Non_DVB_S
70
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