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Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
U2100
MSM8974AC
N3
3
N3
1
N2
1
N19
N17
N15
N13
N11
N9
M4
2
L41
L37
L27
L25
L23
L21
L1
K5
0
K4
2
J4
3
J3
5
J3
3
J3
1
J2
1
J1
9
J1
7
J1
5
J1
3
J1
1
H42
H40
H38
H3
6
H3
2
H3
0
H2
8
H26
H24
H22
H10
H8
H4
G3
3
G2
1
G1
3
G5
G1
F5
0
F3
8
F2
2
C13
C1
B5
0
B2
0
B2
A4
9
A4
5
A4
1
A3
7
A3
3
A2
9
A2
5
A2
1
A1
7
A1
3
A9
A5
A3
A1
AE4
1
AE39
AE37
AE33
AE31
AE29
AE25
AE23
AE21
AE19
AE17
AE15
AE13
AE11
AE9
AD46
AD44
AC35
AC33
AC23
AC9
AC1
AB50
AA41
AA37
AA35
AA33
AA27
AA25
AA21
AA19
AA17
AA15
AA13
AA11
AA9
Y42
Y8
W29
W27
W25
W9
W1
V50
V42
U43
U35
U33
U31
U23
U21
U19
U17
U15
U13
U11
U9
T42
R43
R41
R39
R37
R29
R27
R9
R5
R1
P50
P42
N35
BK50
BK48
BK44
BK40
BK36
BK28
BK24
BK20
BK16
BK12
BK8
BK2
BJ49
BJ41
BJ33
BJ21
BJ3
BJ1
BH34
BG1
BF50
BF48
BF42
BF30
BE41
BE37
BE29
BE7
BE1
BD42
BD24
BD12
BD4
BC27
BC25
BC13
BB50
BB42
BB40
BB38
BB36
BB34
BB32
BB30
BB28
BB26
BB24
BB16
BB14
BB12
BB10
BB8
BA31
BA29
BA27
BA25
BA23
BA21
BA19
BA17
BA15
BA11
BA9
AY42
AY2
AW45
AW27
AW9
AW1
AV5
0
AV8
AV4
AU43
AU41
AU39
AU35
AU33
AU31
AU27
AU25
AU23
AU21
AU19
AU15
AU13
AU
9
AU
3
AT42
AR27
AR
9
AR
1
AP5
0
AP4
2
AN41
AN39
AN35
AN33
AN31
AN29
AN27
AN25
AN23
AN21
AN19
AN17
AN13
AN11
AN
9
AN
7
AN
1
AM4
2
AL
9
AL
1
AK5
0
AJ4
1
AJ3
9
AJ3
7
AJ3
5
AJ3
3
AJ3
1
AJ2
9
AJ2
7
AJ2
5
AJ2
3
AJ2
1
AJ1
9
AJ1
7
AJ1
5
AJ1
3
AJ1
1
AJ9
AG43
AG
9
AG
1
AF50
AF44
AF42
GND_14
0
GND_14
1
GND_14
2
GND_14
3
GND_14
4
GND_14
5
GND_14
6
GND_14
7
GND_14
8
GND_14
9
GND_15
0
GND_15
1
GND_15
2
GND_15
3
GND_15
4
GND_15
5
GND_15
6
GND_15
7
GND_15
8
GND_15
9
GND_16
0
GND_16
1
GND_16
2
GND_16
3
GND_16
4
GND_16
5
GND_16
6
GND_16
7
GND_16
8
GND_16
9
GND_17
0
GND_17
1
GND_172
GND_173
GND_174
GND_175
GND_176
GND_177
GND_178
GND_179
GND_180
GND_181
GND_182
GND_183
GND_184
GND_185
GND_186
GND_187
GND_188
GND_189
GND_190
GND_191
GND_192
GND_193
GND_194
GND_195
GND_196
GND_197
GND_198
GND_199
GND_200
GND_201
GND_202
GND_203
GND_204
GND_205
GND_206
GND_207
GND_208
GND_209
GND_210
GND_211
GND_212
GND_213
GND_214
GND_215
GND_216
GND_217
GND_218
GND_219
GND_220
GND_221
GND_222
GND_223
GND_224
GND_225
GND_226
GND_227
GND_228
GND_229
GND_230
GND_231
GND_232
GND_233
GND_234
GND_235
GND_236
GND_237
GND_238
GND_239
GND_240
GND_241
GND_242
GND_243
GND_244
GND_245
GND_246
GND_247
GND_248
GND_249
GND_250
GND_251
GND_252
GND_253
GND_254
GND_255
GND_256
GND_257
GND_258
GND_259
GND_260
GND_261
GND_262
GND_263
GND_264
GND_265
GND_266
GND_267
GND_268
GND_269
GND_270
GND_271
GND_272
GND_273
GND_274
GND_275
GND_276
GND_70
GND_71
GND_72
GND_73
GND_74
GND_75
GND_76
GND_77
GND_78
GND_79
GND_80
GND_81
GND_82
GND_83
GND_84
GND_85
GND_86
GND_87
GND_88
GND_89
GND_90
GND_91
GND_92
GND_93
GND_94
GND_95
GND_96
GND_97
GND_98
GND_99
GND_100
GND_101
GND_102
GND_103
GND_104
GND_105
GND_106
GND_107
GND_108
GND_109
GND_110
GND_111
GND_112
GND_113
GND_114
GND_115
GND_116
GND_117
GND_118
GND_119
GND_120
GND_121
GND_122
GND_123
GND_124
GND_125
GND_126
GND_127
GND_128
GND_129
GND_130
GND_131
GND_132
GND_133
GND_134
GND_135
GND_136
GND_137
GND_138
GND_13
9
GND_01 GND_02 GND_03 GND_04 GND_05 GND_06 GND_07 GND_08 GND_09 GND_10 GND_11 GND_12 GND_13 GND_14 GND_15 GND_16 GND_17 GND_18 GND_19 GND_20 GND_21 GND_22 GND_23 GND_24 GND_25 GND_26 GND_27 GND_28 GND_29 GND_30 GND_31 GND_32 GND_33 GND_34 GND_35 GND_36 GND_37 GND_38 GND_39 GND_40 GND_41 GND_42 GND_43 GND_44 GND_45 GND_46 GND_47 GND_48 GND_49 GND_50 GND_51 GND_52 GND_53 GND_54 GND_55 GND_56 GND_57 GND_58 GND_59 GND_60 GND_61 GND_62 GND_63 GND_64 GND_65 GND_66 GND_67 GND_68 GND_69
1M TOL=0.05
R2401
1M
R2400
TOL=0.05
BK22
AR13
AR11
AP8
AL43
AK42
AK2
AJ43
AH42
AF4
AD42
AD8
AC43
AB42
AA43
Y2
W37
V8
U7
T8
P8
N49
N43
N3
M44
M8
M2
L43
L5
J47
H50
F4
6
F4
4
F8
E4
5
E4
3
E4
1
E3
9
E3
7
D46
D44
D4
C49
C47
C45
C43
C39
C5
C3
B4
8
B4
6
B4
4
B4
2
B4
0
B3
6
B3
2
B1
2
A4
7
A4
3
A3
9
A3
5
BH22
AP44
AN45
E29
G29
BK46
BK42
BK34
BK6
BJ23
BJ13
BJ9
BH50
BH44
BH36
BH24
BH20
BH2
BG49
BG45
BG43
BG37
BG31
BG23
BF44
BE4
5
BE4
3
BE2
7
BE3
BD50
BD44
BD34
BD32
BD30
BC49
BC43
BC23
BC17
BC
9
BC
5
BC
3
BC
1
BB2
2
BA4
9
BA4
3
BA3
3
AY5
0
AW49
AW43
AW41
AU49
NC_62
NC_63
NC_64
NC_65
NC_66
NC_67
NC_68
NC_69
NC_70
NC_71
NC_72
NC_73
NC_74
NC_75
NC_76
NC_77
NC_78
NC_79
NC_80
NC_81
NC_82
NC_83
NC_84
NC_85
NC_86
NC_87
NC_88
NC_89
NC_90
NC_91
NC_92
NC_93
NC_94
NC_95
NC_96
NC_97
NC_98
NC_99
NC_100
NC_101
NC_102
NC_103
NC_104
NC_105
NC_106
NC_107
DNC_01
DNC_02
DNC_03
DNC_04
DNC_05
NC_01 NC_02 NC_03 NC_04 NC_05 NC_06 NC_07 NC_08 NC_09 NC_10 NC_11 NC_12 NC_13 NC_14 NC_15 NC_16 NC_17 NC_18 NC_19 NC_20 NC_21 NC_22 NC_23 NC_24 NC_25 NC_26 NC_27 NC_28 NC_29 NC_30
NC_31
NC_32
NC_33
NC_34
NC_35
NC_36
NC_37
NC_38
NC_39
NC_40
NC_41
NC_42
NC_43
NC_44
NC_45
NC_46
NC_47
NC_48
NC_49
NC_50
NC_51
NC_52
NC_53
NC_54
NC_55
NC_56
NC_57
NC_58
NC_59
NC_60
DNC_06
<2-1-2-2-4_MSM8974AB GND & NC>
10/11
Rev_0.1