LG KU3800 Service Manual
Internal Use Only
MODEL : LG-KU3800
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
0/71
LGE Internal Use Only
CON401
20Pin Con
충전,통신,Ear
phone 불량
MAIN_TOP
IC350
AUDIO SUB
SYSTEM
벨소리AUDIO
불량
X200
SLEEP
CRYSTAL
전원
Booting 불량
U500
TDMB
TDMB 수신
불량
U203
QSC6270
전원불량
송수신불량
기능오동작
U102,FL101
WCDMA
송수신 불량
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
U100,U101
GSM
송수신 불량
35/71
CON400
배터리
CON
전원 불량
LGE Internal Use Only
U301
(MEMORY)
전원불량
기능 오동작
CN401
L116
FL102
U102
C137
C134
C130
C126
C128
C127
C131
C133
C111
C136
L117
C132
L121
R113
R116
R115R114
FL400
VA404
VA401
VA402
R412
C419
VA403
FL401
C417
C418
FB403
FB402
VA406
VA405
R414
C365
FL101
L114 C125
C114
C113
C112
C115
C116
C101
L100
C102
L504
R407
R351
C353
R356
R352
C354
R357
U101
L101
R402
D400
C352
L115
C405
C366
R408
R409
C415
C362
1 5
L118
L122
R403
C363
C355
C105
D401
R206
R400
Q401
C364
IC350
C138
C135
C124
C123
C120
FL100
R207
C402
C367
R355
C357
C356
D
C351
L119
L111
L113
L107
L110
L103
L106
C141
ZD400
Q400
R354
C350
R107
R108
C140
C109
L112
L109
L104
R109
R103
R201
X200
C232
R218
R252
C236
C235
C110
C100
C254
C249
23
R405
R406
L206
C215
R225
R213
R220
C253
L205
C216
R226
R212
C246
L204
U203
C211
C210
C213
R228
R211
C252
TP203 TP204
R227
C209
C258
C244
TP202
C208
C279
R232
C504
R503
C502
L505
C507
C202
R231
C203
R229
C256
C221
R221
R230
1
C220
TP500
C505
7
C539
U500
C500
C501
TP503
G
C303
C305
R509
C368
L501
C290
R233
F
E
B
D
C
C503
C509
R300
C291
C300
TP317
1
C306
C302
P
N
M
L
K
J
H
G
TP306
F
TP301
E
TP311
D
TP300
C
B
TP315
A
AC
AB
AA
Y
W
V
TP201
U
T
R
P
N
M
L
K
J
H
TP313
G
F
TP316
E
D
C
B
A
10
U301
C304
R301
TP309
R302
C307
C308
C301
U100
C108
C107
C103
C104
R102
R100
R101
C420
CN400
ZD401
VA400
C413
C414
D:\PROJECT\KB3\artwork\KU3800_MAIN_SPFY0242101_10\PCB\KU3800_MAIN_SPFY0242101_10.pcb - Page 1 of 1 pages.
MAIN_BOTTOM
CN501~2
Wi-Fi ANT
contact
Wi-Fi/인터넷
전화 불량
CON600
LCD,VGA CAM,
SPEAKER,MOTOR,
LED MATRIX불량
X500
TDMB
XTAL
TDMB수신
불량
CN500
2M CAM
CON
2M CAM
불량
CN602
KEY CON
KEY 불량,HALL
IC 불량
CN601
SUB CON
USIM,
TFLASH
인식불량
U600
KEY
ENCODER
KEY 오동작
SW100
송수신불량
X501
U501
Wi-Fi/BT
불량
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
WI-FI
TCXO
WI-FI 불량
FL600~604
LCD 필터
LCD 화질 불량
U402,U404
2M CAM
LDO
2M CAM 불량
36/71
BAT200
시간표시
오류
X100
TCXO
부팅불량
기능오동작
LGE Internal Use Only
SC102
CN501
CN502
C516
L506
C518
C522
C521
TP516TP515
R505
TP520
C526
C525
L502
TP505TP506TP508
TP514
TP517
TP521TP519
C527
C514
FL604
C601
C515
VA602
X500
R601
VA603
VA605
FL603
3160
28 54
30
27
C603
VA607
R600
C612
FL601 FL600FL602
FL607
C541
R501
VA604
VA606
VA506
VA505
C511
C510
C359
FB301
FB300
FL606
1324
CN500
12
VA502
FL605
TP600
R502
C540
CN600
VA601
C600
VA600
TP513
TP511
TP512
C524
C358
SC101
R217
TP507
TP510
TP509
C231
C230
C542
C250
C245
C237
U501
R253
TP518
TP522
C214
C212
R209
C219
C535
X501
C207
C217
C206
C218
R204
C205
C223
C273
C274
R208
C255
C269
C530
L503
C528
C533
C529
C531
C532
TP523
R506
C534
U502
C536
C538
C537
C411
C409
C408
C410
C233
C234
R219
C224
L202
C263
C266
C268
C240
R214
C259
C272
C260
C261
L201
C264
C270
R203
C271
L200
C265
L203
C257
C241
C242
C251
C247
C248
C243
C262
C222
C267
C229
R216
VA503
C204
C282
C281
C284
C287
C283
C286
C285
C228
R215
C512
R602
FB600
C615
11
8
VA616
C613
14
VA612
20
C416
U200
C400
U400
C401
CN602
U600
R111
10
7
X100
C225
C403
C407
U401
C404
U404
C605
R254
U202
R411
R410
C606
C611
C609
VA613
VA615
VA614
C607
10
C608
C121
R112
C118
C117
R110
R251
C201
R255
U402
C406
R605
R604
CN601
R606
R607
SC104
R608
C610
R603
R609
R404
20
11
L108C122
U403
C412
L105 C119
SW101
L102
SW100
SC103
SC105
CON200
610
5
CON201
BAT200
C226
R205
D:\PROJECT\KB3\artwork\KU3800_MAIN_SPFY0242101_10\PCB\KU3800_MAIN_SPFY0242101_10.pcb - Page 1 of 1 pages.
KEY_FPCB_TOP
LD100~103
LED
LED 불량
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
37/71
LGE Internal Use Only
L
D
10
C106
2
R114
C107
R115
3
10
D
L
KB119
KB104
KB103
KB113
KB123
KB118
KB124
KB100 KB101
KB108
KB102
KB109
KB105
KB110
R113
LD101
KB114
KB106
KB111
KB125
R112
LD100
KB107
KB112
KB115
KB120
KB116
KB121
KB117
KB122
D:\PROJECT\KB3\artwork\FPCB\KEY\KU3800_F_KEY_SPCY0256201_1.1\PCB\KU3800_F_KEY_SPCY0256201_11.pcb - Page 1 of 1 pages.
KEY_FPCB_BOT
CN602
FPCB Con
MIC,KEY, HAII IC
불량
FL100~102
KEY 필터
키동작오류
U101
HALL IC
폴더 인식 오류
MIC100
MIC
MIC 불량
SW100
Antenna S/W
송수신 불량
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
38/71
LGE Internal Use Only
20
CN602
C105
U101
C104
11
ZD100
ZD101
10
FL101FL100 FL102
D100
R116
C103
L100
ANT104
ANT103
C101
C102
SW100
R117
ANT102
MIC100
D:\PROJECT\KB3\artwork\FPCB\KEY\KU3800_F_KEY_SPCY0256201_1.1\PCB\KU3800_F_KEY_SPCY0256201_11.pcb - Page 1 of 1 pages.
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