08-gt-n7100-tshoo-72
TRANSCRIPT
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8. Level 3 Repair
8-1
Confidential and proprietary-the contents in this service guide subject to change without prior notice.
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8-1. Block Diagram
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8-2
8-2. PCB Diagrams
8-2-1. TOP
ANT100
ANT102
ANT200
ANT201
ANT500
ANT501
BH601
BH602
C100
C101
C102
C103
C104
C105
C106
C107
C108C109C113
C115
C118
C119
C121
C124
C125
C126
C127
C128
C129
C130
C131
C132
C133
C134
C135
C136
C137
C138
C139
C140
C141
C142
C143
C144
C145
C146
C147
C148
C149
C150
C151
C152
C153
C154
C155
C156
C157
C158
C159
C160
C161
C162
C163
C164
C168
C169
C170
C171
C180
C181
C182
C183
C184
C185
C186
C187
C188
C189
C190
C191
C192
C193
C194
C195
C196
C
197
C
198
C199
C200
C201
C202
C203
C204
C205
C212
C215
C216
C217
C220
C221
C222
C223
C224
C225C226
C227
C228
C229
C230
C231
C232
C233
C234
C235
C236
C237C238
C239
C240
C241
C242
C243
C244
C245C246
C247
C248C249
C250
C251
C252
C254
C256
C257
C258
C259
C263
C264
C291
C292
C293
C295
C296
C297
C298
C299
C400
C40
1
C406 C407
C408
C409
C410
C421
C422
C423
C424
C425
C426
C427
C428
C429 C430
C431
C432
C433
C442
C443
C448
C506C507
C
527
C536
C539
C541
C553
C554
C555
C556
C557
C558
C561
C562
C564
C565
C566
C567
C568
C570C571
C572
C573
C574
C575
C576
C579
C580
C581
C583
C584
C585
C586
C587
C588
C589
C606
C607
C610
C611
C612
C613
C614
C615
C616
C617
C618
C620
C621
C622
C623
C625
C626
C627
C628
C629
C634
C637
C638
C639
C640
C641
C642
C643
C646
C647
C649
C650
C652
C653
C655
C656
C660
C703
C704
C705
C724
C725
C744
C745
C746
C752
C753
C756
C758
C759
C760
C761
C762
C800
C801
C802
C803
C804
C805
C806
C807
C808
C809
C810
C811C812
C813
C814
C815
C817
C818
C819
C820
C822C823
C824
C825
C826
C827C
828
C829
C830
C831
C832
C833
C834
C835
C836
D500
D501
F100
F101
F102
F103
F200
F500
FM_RST
HDC500
HDC501
HDC600
HDC601
HDC700
HDC702
HDC703
HDC800
HDC801
HEA300
L100
L101
L102
L103
L104
L107
L108
L109L110
L111
L112
L113
L114L115
L117
L118
L119
L120
L121
L122
L128
L129L
130
L131
L200
L203
L205
L206
L207
L208L209
L218
L219
L220
L221L222
L511
L512
L513
L515
L600
L601
L602
L604
L608
L609
L610
L612
L701
L710
L713
L800
L801
L802
L803
LED500
MIC600
OSC100
OSC201
OSC
202
OSC203
OSC400
OSC500
PEN_IRQPEN_TP_AOUT
Q021
Q200
Q600
R101
R103
R104
R105
R112
R207
R210
R211R212
R213
R214
612R512R
R217
R218
R219
R220
R221
R222
R223
R224
R225
R320
R326
R416
R418
R420
R421
R424
R429
R430
R433
R434
R435
R436
R453
R454
R457
R458
R459
R460
R465
R470
R471
R500
R505
R506
R511
R512
R513
R514
R515
R516
R518
R520
R521
R522
R523
R524
R525R526
R527
R528
R529
R530
R531
R532
R605
R610 R612
R613
R614
R616
R617
R630
R635
R638
R639
R640
R641
R643
R646
R647
R650
R651
R652
R656
R657
R658
R659
R660
R704
R706
R709
R731
R735
R736
R758
R761
R762
R763
R764
R800
R801
R802
R803
R804R805
R806
R807
R808
R809
R810
R811
R812
R813
R814
R815
R816
R817
R818
R819
R820
R821
R822
R823
R824
R825
R826
R827
R828
R829
R831R832
R833R834
R835R836
R837
R838
R839
RFS100
SC200
SC201
TA500
TA600
TAC603
TH401
TP210
TP211
TP213
TP214
T P2 1 5 T P2 23TP224 TP225TP226
TP232
TP233
TP234
TP236
TP237
TP238
TP239
TP240
TP319TP321
TP500
TP607
TP609
TP800
TP801
TP802
TP803
TP_101
TP_GPS_EN
U100
U101
U103
U200
U204
U210
U226
U228
U230 U232
U400U
501
U 50 2 U 50 4
U505
U506
U600
U601
U604
U605
U606
U703
U707
U708
U710
U800
U801
U802
U803
U805
U806
U807
U808
U809
V100
V600
V602
V603
ZD500
ZD501
ZD602
ZD603
ZD604
ZD605
ZD606
ZD607
ZD608
ZD609
ZD702
ZD703
ZD704
ZD705
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8-3
8-2-1. Bottom
ANT502
ANT503AP_PS_HOLD
BH100
BH101
BH600
BTC500
C110
C111
C112
C114C116
C117C120
C122
C123
C165
C166C167
C172C173
C174
C175
C176
C177
C178
C179
C206
C207
C209
C210
C211
C213
C218
C219
C253 C255
C300
C301
C302
403C303C
C305 C306
C307
C308
C309
C310
C311
C312
C313
C314
C315
C316
C317
C318
C319
C320
C321
C322
C323
C324
C325
C326 C327
C328
C329
C330
C331
C332
C333
C334
C335
C336
C337
C338
C339
C340
C341
C342
C343
C344
C345
C346
C347
C402
C403
C404
C405
C411
C412C413
C414
C415
C416
C417
C418
C419
C420
C434
C435
C436
C437C438
C439
C440
C441
C444
C445
C446
C447
C449
C450
C451
C452
C453
C500
C501
C502
C503
C505
C508
C509
C510
C511
C512
C513
C514
C515
C516
C517
C518
C519
C520
C521
C522
C523
C524
C525
C526
C528
C529
C530
C531
C532
C533
C534
C535
C537
C538
C540
C542
C543
C544
C545
C546
C547
C548
C549
C550
C551
C552
C559
C560
C563
C590
C600
C601
C602
C603
C604
C605
C619
C632
C633
C644
C651
C654
C706
C707
C708
C710C711
C712
C713C714
C715
C716
C718
C719
C720
C721
C722
C723
C726
C729
C730
C731
C734
C735
C736
C737
C738
C739
C740
C741
C743
C748 C749
C750C751
C757
C816
C821
HDC701
L105
L106
L116
L123
L124
L125
L126
L127
L204
L300
L301
L302
L30
3
L500
L501
L502
L503
L504
L505
L506
L507
L508
L509
L510
L514
L516
L603
L605
L607
L613
L614
L700
L702
L703
L704
L705
L706
L707
L712
OSC200
OSC800
R102
R201
R202
R203
R204
R205
R206
R209
R227
R228
R300
R304
R305
R306
R307
R308
R309
R310
R311
R312
R313
R314
R315
R316
R317
R318
R319
R321
R325R327R328
R329
R330
R331
R332
R334
R335
R402
R403
R404
R405
R406
R407
R408
R409
R410
R412
R413
R414
R415
R417
R419
R422
R423
R425
R426
R427
R428
R431
R432
R437
R438
R441
R442
R443
R444
R445
R446
R447
R448
R451
R452
R455
R456
R461
R462
R463
R464
R466
R467 R468 R469
R475
R476
R477
R501
R502
R
503
R
504
R507
R509
R600
R602
R606
R619R620
R623
R707
R708
R710R711
R712
R721R722
R725
R728R729 R730
R732
RESET300
SUS200
SUS201
SUS202
SUS203
TA100
TA501
TAC600
TAC601
TH300
TH400
TP207
TP208TP209
TP212
TP216
TP217
TP218
TP219
TP220TP221 TP222
TP227
TP228
TP229
TP300
TP301
TP302
TP303
TP304
TP305TP306
TP307
TP308
TP309
TP310 TP311
TP312
TP313TP314
TP315TP316TP317T P318 T P320TP322
TP323
TP324
TP325
TP326
TP328
TP329
TP330
TP400
TP401
TP402
TP403
TP501
TP502
TP503
TP504
TP505TP506
TP507TP508TP509
TP600
TP601
TP602
TP603TP604TP605
TP606
TP610
TP611
TP612
TP700TP701 TP702
TP703
TP704
TP705
TP706
TP_100
U102
U104
U224
U231
U302
U500
U503
U602
U603
U700
U701 U702
U704
U709
UCP300
UCP400
UME300
V601
V700V701
ZD700
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8-4
8-3-1. Power On
Check the HDC601
Cell-phone can`t power on.
Change the HDC601(Power-key)
And retry to the power-on operation.
END
No
Yes
Check the U500 output voltage(C552= 1.1V, C550= 1.0V,C549 = 1.0V, C547 = 1.0V)
If the output voltage is not satisfied with normal
condition, Change the U501.
Each voltage will be changed from 0.9V to
1.3Vduring booting.
No
Yes
Check the U500 output signal(AP_PS_HOLD(TP) > 1.8V)
If the output voltage is not satisfied with normal.
condition, Change the U500.
Each voltage level has 10% margin.
No
Yes
Check the Battery Voltage.Is it more than3.4V?
Charging the battery by TA.
If its voltage level is extremely low(under3.0V),
Change the battery.
check the initial operation
Yes
Abnormal
Check the Clock OSC500(C506)Is that frequency 32Khz?
Change the OSC500.
If OSC400 does not still work, Change the U501
This problem is internal oscillator of U501.
Test condition (Oscilloscope setting)
: 20.0us.div (time division)
No
Yes
Yes
Change the FRONT-OCTA LCD ASSY
Power-on the phone and check
the power-on sound
or motor biration.
Sound or Biration is ok?
Yes
No
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8-5
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8-6
8-3-2. Initial
Initial Failure
END
Check the AP ResetAP_N_RST_IN(R503)= 1.8V(High)
Yes
Check the U500 and R503 (crack, open, etc.)
Check the oscillator clock waveforms.32.768KHz : OSC500(C506),
24Mhz : OSC400(C443)
Check the OSC500, OSC400 and R416.(Crack, open etc.)
Check the output clock waveforms and frequency.
Test condition (Oscilloscope setting): 20.0us.div (time division)
Abnorma
l
Yes
Normal
No
Re-download SW the cell-phone.
Change UCP400,U501
Abnormal
Abnormal
Change PBA
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8-7
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8-8
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8-9
8-3-3. No Service
No service
END
Check the CP_VSD1,CP_VSD2_1.8VCP_VSD1(C351)=0.9~1.4V
CP_VSD2 (C353) = 1.8V
Yes
Replace the UCP300
Yes
Check VREFVREF( C360)= 600mV Replace the UCP300
Yes
No
No
Check memu setting
Menu applications setting wireless and network
mobile networks network mode setting is auto mode?
Check the connection of RF coaxial cable
(QCB01 @ page2 )
Change the board
PHONE: N7100XXXXXX
PHONE : unknown
Menu Phone Keypad *#1234# check Phone version
PHONE: N7100XXXXXX orPHONE : unknown
Abnormal
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8-10
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8-11
8-3-4. Sim Part
Insert SIM card
Check the Pin Solderingof HDC500
Yes
Yes
No
END
Check the SIM Voltage.(C321)>= 1.8or3.0?
Resoldering and recheck
Change to the new SIM card.
If it doesn`t still work SIM card after changeing
the SIM card, Check the UCP300 (Crack etc)
Yes
No
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8-12
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8-13
8-3-5. Charging Part
TA/ USB Insert
Yes
END
Charging Sequence StartV_BUS_5V = 5V
No Check C562= 5V,or may not connected TA /USB
Yes
Check the CHG_IN_5V(C553)=5VNo
Resolder and Replace U502
Yes
Battery is Charging?No
Resolder or Replace U505
Yes
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8-14
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8-15
8-3-6. Microphone Part (Main MIC)
Check Sub-PCB modulewhere main MIC is placed
for any damage (Tear in FPC,etc)
Check component solderingstatuses of C625, C626
Change the Sub-PCB module
Resolder or replace C625, C626
END
No
Yes
Yes
Yes
No
Check main microphone function
in voice call receiver mode
or in Voice Recording mode
Check the voltage atC607= 2.8V
Resolder or replace U600No
Yes
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8-16
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8-17
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8-18
8-3-7. Microphone Part (Sub MIC)
Check Sub MIC Solderingfor any damage
Check component solderingstatuses of C634, C637
Resolder or replace MIC600
Resolder or replace C634, C637
END
No
Yes
Yes
Yes
No
Check Sub microphone function
in voice call loudSPK mode
Check the voltage atC654= 2.8V Check U601 function
No
Yes
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8-19
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8-20
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8-21
8-3-8. Speaker Part
Check the signals with subPCB contact
Check speaker function.
Play MP3 with maximum volume level.
No
Replace sub PCB
END
Yes
Yes
Replace the speakermodule
Yes
Check the connection ofHDC501
Yes
No
Reconnect HDC501
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8-22
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8-23
8-3-9. Receiver Part
Check the signals onC652, V602,V603
Check receiver function
in voice call receiver mode.
No
Resolder or replace U601
END
Yes
Yes
Check the connection ofHDC600
Yes
No
Reconnect HDC600
Check RCV-Earjack
module where RCV's placedfor any damage (Tear inFPC, etc)
Yes
No
Replace the RCV-Earjack module
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8-24
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8-25
8-3-10. BT/WIFI
BT/WiFi is not working
Check BT or WiFi functionON
NoEnable BT or WiFi Function
Yes
END
Check the Voltage on C209=1.8V
NoCheck the U500(crack, open, damaged, etc.)
Yes
Check 37.4MHz Clock atR209
NoCheck the OSC200(crack, open, etc.)
Yes
Check the Voltage on L204 =1.5V
NoResolder or change the L204
Yes
Check the Status of
C202, ANT201
NoResolder or Replace C202, ANT201
Yes
Resolder or Replace U224
Yes
Yes
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8-26
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8-27
8-3-11. FM RADIO
FM Radio is not working
END
Check the Connection ofHDC600
NoConnect Earjack Ass'y correctly to HDC600
Yes
Check the Audio Signal atC640,C643
No Check Earphone(crack, open, etc.)Check Audio Codec IC (U601)
Yes
Resold and Replace U226
Yes
Yes
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8-29
8-3-12. LCD
LCD is still off after PWR ON
Yes
NoReconnect the HDC 702
Check the connection ofHDC 702
END
No
Resolder or Replace the PMIC(U500)
Yes
Check VCI_3.0V_LCD=3.0V(C541),
VCC_1.8V_LCD = 1.8V(C532),
Yes
Yes
Replace LCDModule
Yes
Check ELVDD_4.6V =4.6V(C726), ELVSS_-4.0V= -
1.4~4.4V(C718)Resoldering L705, L706
No
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8-30
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8-31
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8-32
8-3-13. TSP
Touch Screen does not work
Yes
No
Reconnect the HDC702Check TSP Connector onMain PBA
Yes
END
Yes
NoReconnect TSP Connector
Check the TSP connector onLCD Module
Yes
Replace LCD Module
Yes
Check the I2C signal(R457,
R458)
Yes
Resolder R457, R458
No
NoTSP_VDD_1.8V=1.8V(C540) and TSP_AVDD=
3.3V(C539)Resolder or Replace the PMIC(U500)
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8-33
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8-34
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8-35
8-3-14. 8M CAM
Yes
Check the Cameraconnector on Main PBA
Reconnect the HDC701No
Check the voltageC723 = 2.8V,C721 = 2.8VC758 = 1.2V
C535 = 1.8VC529= 1.2V
Replace or Resolder U702, C723, C706
Replace or Resolder U701, C721, C707
Replace or Resolder U710, C758, C760,
R762, L713, C759, R763
Resolder or Replace the PMIC(U500)
Replace the PBA
No
END
Replace the camera module
"Camera" function does not work
Yes
Yes
Check L700, L701 is OK
Yes
NoResolder L700, L701
Abnorma
NoCheck the I2C
signal(R729,730), (R721,722)Resolder or Replace R721, R722, R729,
R730
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8-36
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8-37
8-3-15. 2M CAM
Yes
Check the Cameraconnector on Main PBA Reconnect the HDC700
No
Check the voltageC721 = 1.8VC536 = 1.8VC535 = 1.8VC529 = 1.2V
No
Yes
END
Replace the camera module
"Camera" function does not work
No
Yes
Replace or Resolder U701, C721, C707
Resolder or Replace the PMIC(U500)
Replace the PBA
Check the I2C signal(R433,
R434) Resolder or Replace R433, R434
Yes
Abnorma
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8-39
Check C103 -65dBm?
8-3-16. GSM1800 RX
NORMAL CONDITIONcatch the channel?
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167= VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check componentsoldering status OK at
F100
CHECK solderedRFS100, L102,C103,C106
Resolder or changeU100, C101
Resolder or changeF100
Resolder or changeU104
Check the freq. atOSC100 PIN1,3: 26MHz ?
Change or resolderOSC100
Check L133
-65dBm?Resolder or change
L133
GSM1800 Receiver is O.K? Resolder or changeUCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN18, 19
-65dBmResolder or change
F100
NO
YES
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8-41
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8-42
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8-43
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8-44
Check C103 -65dBm?
8-3-17. WCDMA Band1 RX
CONTINUOUS RX ON
RF INPUT: 10700CH
AMP: -50dBm
NORMAL CONDITIONcatch the channel?
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167= VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check componentsoldering status OK at
F100
CHECK solderedRFS100, L102,C103,C106
Resolder or changeU100, C101
Resolder or changeF100
Resolder or changeU104
Check the freq. atOSC100 PIN1,3: 26MHz ?
Change or resolderOSC100
Check L104
-65dBm?Resolder or change
L104
WCDMA BAND1 Receiver is O.K? Resolder or changeUCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN14, 15
-65dBmResolder or change
F100
NO
YES
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8-46
Check C103 -65dBm?
8-3-14. WCDMA Band2 / GSM1900 RX
CONTINUOUS RX ON
RF INPUT : 9880CH
AMP: -50dBm
NORMAL CONDITIONcatch the channel?
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167= VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check componentsoldering status OK at
F100
CHECK solderedRFS100, L102,C103,C106
Resolder or changeU100, C101
Resolder or changeF100
Resolder or changeU104
Check the freq. atOSC100 PIN1,3: 26MHz ?
Change or resolderOSC100
Check L132
-65dBm?Resolder or change
L132
WCDMA BAND2/GSM1900Receiver is O.K?
Resolder or changeUCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN16, 17
-65dBmResolder or change
F100
NO
YES
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8-48
Check C103 -65dBm?
8-3-18. WCDMA Band5 / GSM 850 RX
CONTINUOUS RX ON
RF INPUT: 4408CH
AMP: -50dBm
NORMAL CONDITIONcatch the channel?
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167= VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check componentsoldering status OK at
F100
CHECK solderedRFS100, L102,C103,C106
Resolder or changeU100, C101
Resolder or changeF100
Resolder or changeU104
Check the freq. atOSC100 PIN1,3: 26MHz ?
Change or resolderOSC100
Check C118, L107
-65dBm?Resolder or change
C118, L107
WCDMA BAND5/GSM850Receiver is O.K?
Resolder or changeUCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN20,21
-65dBmResolder or change
F100
NO
YES
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8-50
Check C103 -65dBm?
8-3-19. WCDMA Band8 / GSM900 RX
CONTINUOUS RX ON
RF INPUT: 3013CH
AMP: -50dBm
NORMAL CONDITIONcatch the channel?
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167= VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check componentsoldering status OK at
F100
CHECK solderedRFS100, L102,C103,C106
Resolder or changeU100, C101
Resolder or changeF100
Resolder or changeU104
Check the freq. atOSC100 PIN1,3: 26MHz ?
Change or resolderOSC100
Check L134
-65dBm?Resolder or change
L134
WCDMA BAND8/GSM900Receiver is O.K?
Resolder or changeUCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN22,23
-65dBmResolder or change
F100
NO
YES
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8-52
U100 PIN11 : About30dBm ?
8-3-20. GSM850/GSM900 TX
Check the Voltage at
R105,C134=VOUT_CHARGER?
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
Resolder or changeU100, C101
Resolder or changeU103,R105,C134
Check C129,L135,L109: About 30dBm?
Resolder or changeC129,L135,L109
YES
NO
NO
YES
YES
NO
NO
YES
Check C139,C124: About 0dBm ?
Resolder or changeC139,C124
YES
YES
Resolder or changeU104
Change or resolderOSC100
GSM850/900 Transmitter is O.K? Resolder or changeUCP300
END
NO
YES
NO
YES
NO
CONTINOUS TX ON CONDITIONTX POWER DAC:14500CODE
APPLIEDGSM850 CH: 190GSM900 CH : 62
RBW: 100KHzVBW : 100KHzSPAN: 10MHz
REF LEV. : 10dBmATT. : 20dB
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check the voltage at{C150= VOUT_CHARGER?}
& {C165, C166, C167
= VOUT_CHARGER?}& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173 = 1.2V?}
Check the freq. atOSC100 PIN1,3 : 26MHz ?
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8-53
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8-54
U100 PIN11 : About30dBm ?
8-3-21. DCS/PCS TXCONTINOUS TX ON CONDITION
TX POWER DAC:14500CODEAPPLIED
DCS CH: 685PCS CH : 661RBW: 100KHzVBW : 100KHzSPAN: 10MHz
REF LEV. : 10dBmATT. : 20dB
Check the Voltage at
R105,C134=VOUT_CHARGER?
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
Resolder or changeU100, C101
Resolder or changeU103,R105,C134
Check C135,L110,C136: About 30dBm?
Resolder or changeC135,L110,C136
YES
NO
NO
YES
YES
NO
NO
YES
Check C138,C121: About 0dBm ?
Resolder or changeC138,C121
YES
YES
Resolder or changeU104
Change or resolderOSC100
DCS/PCS Transmitter is O.K? Resolder or changeUCP300
END
NO
YES
NO
YES
NO
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Check the voltage at{C150= VOUT_CHARGER?}
& {C165, C166, C167
= VOUT_CHARGER?}& {C149, C174= 2.85V ?}& {C144, C172= 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173 = 1.2V?}
Check the freq. atOSC100 PIN1,3 : 26MHz ?
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8-55
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8-56
U100 PIN11 : About30dBm?
8-3-22. WCDMA BAND1 TX
Check L104 :About22dBm?
Resolder or changeL104
YES
NO
Check componentsoldering status OK at
F100
Resolder or changeF100
NO
YES
Check C140,L136 :About22dBm?
Resolder or changeC140,L136
YES
NO
Check the Voltage at
R105,C134=VOUT_CHARGER?
Resolder or changeU103, R105,C134
NO
YES
Check C138, C121About0dBm?
Resolder or changeC138, C121
YES
YES
WCDMA BAND1 Transmitter is O.K? Resolder or changeUCP300
END
YES
NO
CONTINOUS TX ON CONDITIONTX POWER DAC:14500CODE
APPLIEDWCDMA Band1 CH: 10700
RBW: 100KHzVBW: 100KHzSPAN : 10MHz
REF LEV. : 10dBmATT. : 20dB
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
YES
NO
Resolder or changeU100, C101
NO
YES
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Resolder or changeU104
Change or resolderOSC100
NO
YES
NO
Check the voltage at{C150= VOUT_CHARGER?}
& {C165, C166, C167 =VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172 = 2.65V ?}& {C148, C177 = 1.8V?}
& {C147, C175, C173 = 1.2V?}
Check the freq. atOSC100 PIN 1,3: 26MHz?
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8-57
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8-58
U100 PIN11 : About30dBm?
8-3-23. WCDMA BAND2 TXCONTINOUS TX ON CONDITION
TX POWER DAC:14500CODEAPPLIED
WCDMA Band2 CH: 9880RBW: 100KHzVBW: 100KHzSPAN : 10MHz
REF LEV. : 10dBmATT. : 20dB
Check L132 :About22dBm?
Resolder or changeL132
YES
NO
Check componentsoldering status OK at
F100
Resolder or changeF100
NO
YES
Check L137 :About22dBm?
Resolder or changeL137
YES
NO
Check the Voltage at
R105,C134=VOUT_CHARGER?
Resolder or changeU103, R105,C134
NO
YES
Check C138, C121About0dBm?
Resolder or changeC138, C121
YES
YES
WCDMA BAND2 Transmitter is O.K? Resolder or changeUCP300
END
YES
NO
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
YES
NO
Resolder or changeU100, C101
NO
YES
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Resolder or changeU104
Change or resolderOSC100
NO
YES
NO
Check the voltage at{C150= VOUT_CHARGER?}
& {C165, C166, C167 =VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172 = 2.65V ?}& {C148, C177 = 1.8V?}
& {C147, C175, C173 = 1.2V?}
Check the freq. atOSC100 PIN 1,3: 26MHz?
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8-59
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8-60
U100 PIN11 : About30dBm?
8-3-24. WCDMA BAND5 TXCONTINOUS TX ON CONDITION
TX POWER DAC:14500CODEAPPLIED
WCDMA Band5 CH: 4408RBW: 100KHzVBW: 100KHzSPAN : 10MHz
REF LEV. : 10dBmATT. : 20dB
Check C118,L107 :About22dBm?
Resolder or changeC118,L107
YES
NO
Check componentsoldering status OK at
F100
Resolder or changeF100
NO
YES
Check L138,L111:About22dBm?
Resolder or changeL138,L111
YES
NO
Check the Voltage at
R105,C134=VOUT_CHARGER?
Resolder or changeU103, R105,C134
NO
YES
Check C124,C139About0dBm?
Resolder or changeC124,C139
YES
YES
WCDMA BAND5 Transmitter is O.K? Resolder or changeUCP300
END
YES
NO
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
YES
NO
Resolder or changeU100, C101
NO
YES
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Resolder or changeU104
Change or resolderOSC100
NO
YES
NO
Check the voltage at{C150= VOUT_CHARGER?}
& {C165, C166, C167 =VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172 = 2.65V ?}& {C148, C177 = 1.8V?}
& {C147, C175, C173 = 1.2V?}
Check the freq. atOSC100 PIN 1,3: 26MHz?
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
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U100 PIN11 : About30dBm?
8-3-25. WCDMA BAND8 TX
CONTINOUS TX ON CONDITIONTX POWER DAC:14500CODE
APPLIEDWCDMA Band2 CH: 3013
RBW : 100KHzVBW: 100KHz
SPAN : 10MHzREF LEV. : 10dBm
ATT. : 20dB
Check L134 :About22dBm?
Resolder or changeL134
YES
NO
Check componentsoldering status OK at
F100
Resolder or changeF100
NO
YES
Check C143 :About22dBm?
Resolder or changeC143
YES
NO
Check the Voltage at
R105,C134=VOUT_CHARGER?
Resolder or changeU103, R105,C134
NO
YES
Check C124,C139About 0dBm ?
Resolder or changeC124,C139
YES
YES
WCDMA BAND8 Transmitter is O.K? Resolder or changeUCP300
END
YES
NO
CHECK solderedRFS100,C103, L102
C107,L100,ANT100
YES
NO
Resolder or changeU100, C101
NO
YES
Check the Voltage at
C101 = VDD_2V85_SUE2 ?
Resolder or changeU104
Change or resolderOSC100
NO
YES
NO
Check the voltage at{C150 = VOUT_CHARGER ?}
& {C165, C166, C167 =VOUT_CHARGER?}
& {C149, C174= 2.85V ?}& {C144, C172 = 2.65V ?}& {C148, C177= 1.8V?}
& {C147, C175, C173= 1.2V?}
Check the freq. at
OSC100 PIN 1,3: 26MHz?
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8-3-26. MHL
MHL Does not work
Yes
NoCheck the MHL Cable (for 11Pin USB
connector) andcheck the IF sub FPCB is well connected.Check if MHL_ID goes High
Yes
NoCheck the LDOs (U806, U805)
Check the R801 works
properly
Yes
Check the voltage ofL800(1.2V), L801(1.2V),C803(3.3V), C811(1.8V),
C756(2.8V)
Replace U800
Yes
NoChange the R801's state.
END
Yes
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8-3-27. OTG
OTG does not work
Yes
No Change U505Check CHG_IN_5V(C553)=5V
Yes
END
Yes
No Check U502Check V_BUS_5V(C562) =5V
Yes
Change the board
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