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GSM TELEPHONE
SGH-C140i
GSM TELEPHONE CONTENTS
1. Specification
2. Exploded View and Parts List
3. Flow Chart of Troubleshooting
4. Array course control
5. Block Diagrams
6. PCB Diagrams
7. MAIN Electrical Parts List
8. Reference data
9. Safety Precautions
10. Product Function
Contents
1. Specification
1-1. GSM General Specification .......................................................................................1-1
1-2. GSM Tx Power Class ...............................................................................................1-2
2. Exploded View and Parts List
2-1. Cellular phone Exploded View ..................................................................................2-1
2-2. Cellular phone Part list .............................................................................................2-2
2-3. Disassembly ...............................................................................................................2-4
2-4. Assembly ....................................................................................................................2-6
2-5. LCD KIT .....................................................................................................................2-8
3. Flow Chart of Troubleshooting
3-1. Baseband
3-1-1. Power ON .............................................................................................................9-1
3-1-2. Initial ......................................................................................................................9-4
3-1-3. Sim Part ................................................................................................................9-6
3-1-4. Charging Part ........................................................................................................9-8
3-1-5. Microphone Part ....................................................................................................9-9
3-1-6. Speaker Part .......................................................................................................9-11
3-1-7. LCD ......................................................................................................................9-13
3-1-8. Camera ................................................................................................................9-16
3-2. RF
3-2-1. GSM Receiver.......................................................................................................3-18
3-2-2. DCS Receiver.......................................................................................................3-19
3-2-3. PCS Receiver.......................................................................................................3-20
3-2-4. GSM Transmitter...................................................................................................3-23
3-2-5. DCS Transmitter...................................................................................................3-24
3-2-6. PCS Transmitter...................................................................................................3-25
3-2-7. Bluetooth Part .....................................................................................................3-27
4. Array course control
Software Downloading
4-1. Downloading Binary Files ..........................................................................................4-2
4-2. Pre-requsite for Downloading ....................................................................................4-2
4-3. S/W Downloader Program .........................................................................................4-3
Contents
5. MAIN Electrical Parts List
6. Block Diagrams
7. PCB Diagrams
8. Reference data
9. Safety Precautions
9-1. Repair Precaution ......................................................................................................9-1
9-2. ESD(Electrostatically Sensitive Devices) Precaution ...............................................9-2
10. Product Function
10-1. Main Function .........................................................................................................10-1
1. Specification
1-1. GSM General Specification
EG SM 9 00 DCS1 800
Ph ase 2 Phase 1
F req. Ban d[MHz] 8 80~915 1710~1 785
Uplin k/Down link 9 25~960 1805~1 880
ARF CN ra nge 0~1 24 & 9 75~102 3 512~8 85
T x/Rx spacing 45 M Hz 95 MHz
Mo d. Bit r ate/ 270 .833 kb ps 2 70.83 3 kbps
Bit Period 3 . 692 u s 3.69 2 us
Ti me Slo t Pe rio d/Fr am e 5 76.9 u s 576. 9 us
Per iod 4. 615 ms 4 .615 ms
Modula tion 0 .3 G M SK 0.3 G MSK
M S Power 33 d Bm ~5 dBm 3 0 dBm ~0 dBm
Powe r Class 5 pcl ~ 19 pcl 0 pcl ~ 15 pcl
Se nsitivity -10 2 dBm - 100 dBm
TDMA M ux 8 8
Cell Radiu s 35 Km 2 Km
1-1
Speclflcation
1-2. GSM Tx Power Class
TX Power TX Power
GSM900 DCS1800
control level control level
5 33±2 dBm 0 30±3 dBm
6 31±2 dBm 1 28±3 dBm
7 29±2 dBm 2 26±3 dBm
8 27±2 dBm 3 24±3 dBm
9 25±2 dBm
4 22±3 dBm
10 23±2 dBm
5 20±3 dBm
11 21±2 dBm
6 18±3 dBm
12 19±2 dBm
7 16±3 dBm
13 17±2 dBm
8 14±3 dBm
14 15±2 dBm
9 12±4 dBm
15 13±2 dBm
10 10±4 dBm
16 11±3 dBm
11 8±4 dBm
17 9±3 dBm
12 6±4 dBm
18 7±3 dBm
13 4±4 dBm
19 5±3 dBm
14 2±5 dBm
15 0±5 dBm
1-2
2. Exploded View and Parts List
2-1. Cellular phone Exploded View
QFR01
QKP01
QLC01
QME01
QSP01
QMP01
QMO01
QMI01
QAN02
QRF03
QRE01 QRF01
QCR66
QBA01
QBA00
2-1
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
2-2. Cellular phone Parts list
Design LOC Discription SEC CODE
QAN02 INTENNA GH42-01048A
QBA00 PMO-COVER BATTERY GH72-35803A
QBA01 INNER BATTERY PACK-800MAH,MAIN GH43-02589A
QCR66 SCREW-MACHINE 6001-002047
QFR01 ASSY CASE-FRONT GH98-04866A
QKP01 ASSY KEYPAD-(INU/IAI) GH98-04865A
QLC01 LCD-MAIN MODULE (SGHC140) GH07-01030A
QME01 UNIT-DOME SHEET GH59-03843A
QMI01 MICROPHONE-ASSY-SGH-C140 GH30-00333A
QMO01 MOTOR-DC 3101-001324
QMP01 PBA MAIN-SGH_C140I GH92-03736A
QSP01 SPEAKER 3001-002074
QRE01 ASSY CASE-REAR GH98-03015A
QRF03 PMO-COVER EAR GH72-35806A
2-2
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
Discription SEC CODE
BAG PE 6902-000634
ADAPTOR-SGHC140 DC JACK (INDA_ GH44-01622A
MANUAL-SFC CARD(INDA) GH68-08768A
LABEL(R)-WATER SOAK GH68-09361A
MANUAL USERS-INDA LEAFLET CARD GH68-13751A
MANUAL USERS-INDA ENGLISH GH68-14750A
LABEL(R)-MAIN(EU) GH68-14912A
BOX(P)-UNIT MAIN(INU) GH69-05476H
NPR-BRACKET LID GH71-07160A
MPR-TAPE CAM CON MASK GH74-18424A
MPR-SPONGE SPK A GH74-28347A
MPR-SPONGE SPK B GH74-28350A
MPR-VINYL BOHO WINDOW GH74-30206A
MPR-TAPE WINDOW GH74-32158A
2-3
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Main Electrical Parts List
2-3. Assembly
1 2
Standard Points
Motor Speaker Mike
1) Attach the LCD module to the PBA.
2) Solder LCD module to the PBA.
1) Solder the motor, speaker and mike. caution
caution 1) Be careful, the motor wire isn't down.
1) Be care of the polarity of wires. 2) Be careful with the damages of FPCBS.
3 2
4
1 Rotate 3 times Rotate 1 time
4
3
1) Put the Speaker into the Carrier.
1) Assemble the LCD module.
caution
2) Put the Motor into the Carrier.
caution
1) Be care of scratch and molding damage. 1) Be care of damage to the FPCBs.
2) Keep the orders. 2) Be care of scratch and molding damage.
2-4
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
5 6
2
3
1
1) Assemble the LCD module.
caution 1) Check the PBA
1) Be care of scratch and molding damage. caution
2) Keep the orders. 1) Be care of scratch and molding damage.
7 8
Put the left side Press right side
of the PBA of the PBA.
1 2
Push the back of MIC
to attach firmly.
1) Put the PBA to the FRONT 1) Screw down 4 Points
caution caution
1) Be care of scratch and molding damage. 1) Be care of scratch and molding damage.
2-5
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Main Electrical Parts List
2-4. Disassembly
1 2
1) Unscrew the 4 points.
2) Separate the REAR from the FRONT using 1) Disassemble the FRONT from the PBA.
caution
an assembly stick.
caution 1) Be care of scratch and molding damage.
1) Be care of scratch and molding damage. 2) Be care of damage to the PBA.
3 4
2 1
3
Check the MIC holder.
It could be lost easily.
1) Disassemble the Carrier from the PBA.
1) Check the FRONT. caution
caution 1) Be care of damage to the wires.
1) Be care of scratch and molding damage. 2) Be care of scratch and molding damage.
2-6
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Main Electrical Parts List
5 6
3 1
4 2
1) Detach the Speaker and Motor from the
Carrier using tweezers. 1) Disassemble the LCD module from the PBA
caution
caution
1) Be care of scratch and molding damage. 1) Be care of scratch and molding damage.
2) Be care of damage to the wires. 2) Be care of damage to the LCD module.
7
Soldering
Points
1) Solder the LCD FPCB to take the LCD out.
caution
1) Be care of scratch and molding damage.
2) Be care of damage to the LCD FPCB.
2-7
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This Document can not be used without Samsung's authorization
3. Flow Chart of Troubleshooting
3-1. Baseband
3-1-1. Power ON
'Power ON' does not work
check the current No
consumption Download again
>= 100mA
Yes
Check the Voltage No
of the Battery Charge the battery
>= 3.3V
Yes
Check the pin Check "Power
C100,C101,C102 of No No
On" check keypad
UCP101 is >= 2.8V key?
>=2.8V
Yes 1
Yes check UCP101 and C101
Check the clock signal
2
at pin #3 of OSC400 No Check the clock generation
Freq=26Mhz, circuit OSC400
Vrms >=300mV
Yes
Check the Initial Operation
Yes
END
3-1
DSP_DB(0:15)
Flow Chart of Troubleshooting
DSP_DB(9)
DSP_DB(10)
DSP_DB(11)
DSP_DB(12)
DSP_DB(13)
DSP_DB(14)
DSP_DB(15)
F1
F2
F3
E2
E3
D3
D2
DB10
DB11
DB12
DB13
DB14
DB15
NC6 2
NC5 1
GNDS17 K10
GNDS16 J10
GNDS15 J9
GNDS14 J8
GNDS13 J7
GNDS12 H9
GNDS11 H8
GNDS10 H7
GNDS9 H6
GNDS8 G10
GNDS7 G9
GNDS6 G8
GNDS5 G7
GNDS4 F10
GNDS3 F9
3-2
GNDS2 F8
VCCD_2.9V
GNDS1 F7
C100
NC8 D13
GND_OCTL B4
VDD_OCTL C4
GNDV P13
VDDV L11
GNDB F6
VDDB A6
VCCA_2.9V
GNDD M10
VDDD N11
VSS4 P6
C101
VSS3 R2
VSS2 K4
VSS1 G5
VDD_IO2 J4
VDD_IO1 N5
VDD3 N6
VDD2 M3
VDD1 J3
GND_HCUR F11
GND_PSC2 K15
VCCD_2.9V
GND_PSC1 B15
GNDQ E8
VDD67 B13
C102
VDD5 C10
SIM_CLK
SIM_RST
UP_RST
UP_CLK
SIM_IO
UP_IO
N9
J11
VDD12 J13
K14
K11
P10
R10
VDD34 C11
VBAT
C108
SIM_IO
SIMCLK
SIMRST
SIM_CLK
SIM_RST
SIMDATA
Flow Chart of Troubleshooting
3-1-2. Initial
Initial Failure
No 1
check the pin RSTB Check UCP201
of UCP201 is LOW?
Yes
No 2
check the pin CKI of Check R308, R306, C341
UCP201 is 13Mhz?
Yes
Check the clock signal
No 3
at pin #3 of OSC400 check OSC400
Freq=26Mhz?
Yes
Check VCCD_2.9V, VCCD_1.
No 4
8V of UCP101 "High" when Check UCP101
the phone is boot on?
Yes
Check the Initial Operation
Yes
END
3-3
L9
VSS
J11
VSS
L8
VSS
M7
VSS
L10
VSS
L6
VSS
K7
VSS
K6
VSS
J7
VSS
H11
VSS
H7
VSS
G10
VSS
Flow Chart of Troubleshooting
G9
VSS
F6
VSS
A3
VSS
A2
VSS
C16
VDD
A5
VDD
R17
VDD
R16
VDD
T13
VDD
R4
VDD
R1
VDD
TP201
G1
VDD
E2
VDD
3
B14
VDDE
E17
VDDE
E16
VDDE
N16
VCCD_1.8V VCCD_2.9V
VDDE
U16
C204
VDDE
U15
VDDE
2
P8
VDDE
U2
3-4
VDDE
M1
VDDE
C205
B1
VDDE
E15
R202
VSS_DPLL
G16
VDD_DPLL
F10
1
XVREF
E10
4
VSSA
VCCD_1.8V
C11
VDDA
D8
VRTC
F17
CKI
C12
VCCD_2.9V
RSTB
C206
TRST
TDO
TDI
TCK
TMS
F15
F12
H13
H12
G12
VRTC_3V
C207
VREF
TR_RST
TR_RST
CLK13M_TR
Flow Chart of Troubleshooting
3-1-3. Sim Part
"Insert SIM" is displayed on the LCD
The voltage is 2.8V No
Check the UCP101 1
at the pin#1 of SIM103
Yes
Is there any signal pin No
Check the UCP101 & UCP201 2
#2,3 of SIM103?
Yes
Check the SIM Card
END
1
2
2
SIM103
R100
VSIM 1 1 6 6
SIM_RST 2 2 5 5
SIM_CLK 3 3 4 4 SIM_IO
G G G G
10 9 8 7
C103 C104 C105 C106 C107
3-5
Flow Chart of Troubleshooting
3-1-4.Microphone Part
* Call with Sim before testing.
MicroPhone does not work
Yes
Check the soldered status No
of microphone Resolder microphone
Yes
Check the reference Resolder or change 1
No
voltage on mic path R143,R147,C139,C145,C140,C144,
C139 2.0V R148,R149,R150,R152
Yes
No 2
Is microphone OK? Check UCP101
Yes
VCCA_2.9V
END
R143
C139
R147
R148 C140
MICINP MIC100
MICOUTP
R150
R149
C144
MICINN
MICOUTN
R152
R154 C145 C146 VR118 VR119
3-6
Flow Chart of Troubleshooting
1
2
1
3-7
Flow Chart of Troubleshooting
3-1-5. Speaker Part
There is no sound from speaker
No 1
Is the terminal of Speaker Replace the Speaker
O.K.?
Yes
2
Are there any signal at the No
C136, R140, R141? Check the UCP101
Yes
Are the any signals at the No
R101, R102, R153, R155? Check the Speaker
Yes
END
3-8
Flow Chart of Troubleshooting
1
2
3-9
Flow Chart of Troubleshooting
3-1-6. LCD backlight
Backlight does not work
Backlight ON "TIME" No
mode in the menu? Select backlight "15 sec" mode
Yes
Check conecting between No
PBA and LCD conector Check FPCB
Yes
Check MOD300 v(pin No
#26 - #28,29) = Check the LCD
3.1/2.7V(dimming)
Yes
END
3-10
Flow Chart of Troubleshooting
VBAT VCCD_2.9V
DUMMY 30
LED_1 29
1LED
LED_2 28
2LED
RD 27
VBAT 26
AVDD 25
DVDD 24
A(2) 23
A(2)
GND 22
CS 21 LCD_CS
WR 20
CP_WEN
RST 19 MEM_RST
GND 18
DB0 17
D(0)
DB1 16 D(1)
DB2 15
D(2)
DB3 14 D(3)
DB4 13 D(4)
DB5 12
D(5)
DB6 11 D(6)
D B7 10
D(7)
DB8 9
DB9 8
DB10 7
DB11 6
DB12 5
DB13 4
DB14 3
DB15 2
DUMMY 1
MOD300
GND300 GND301
3-11
Flow Chart of Troubleshooting
3-2. RF
3-2-1. GSM Rx
CONTINOUS RX ON
RF INPUT : 62CH
AMP : -50dbm
Normal condition No
Check ANT, C303, R300 1
catch the channel ?
Yes
Check PAM400 No
pin 12 -65 Resolder or change 2
dbm ? RFS400, L300, L301, L303, C305, C302
Yes
Check PAM400 No
pin 16 -65 dbm Resolder or change 3
? PAM400
Yes
Check U400 No Resolder or change
pin 21,22 - F401, C319, U409, L306
4
65dBm ?
Yes
Check U400 No Resolder or change
pin 13 = 2.9V UCP101 5
Yes
Resolder or change
UCP201
3-12
Flow Chart of Troubleshooting
1
2
3
4
5
3-13
Flow Chart of Troubleshooting
3-2-2. DCS Rx
CONTINOUS RX ON
RF INPUT : 698CH
AMP : -50dbm
Normal condition No
Check ANT, C303, R300 1
catch the channel ?
Yes
Check PAM400 No
pin 12 -65 Resolder or change 2
dbm ? RFS400, L300, L301, L303, C305, C302
Yes
Check PAM400 No
pin 18 -65 dbm Resolder or change 3
? PAM400
Yes
Check U400 No
pin 19,20 - Resolder or change 4
65dBm ? F400, C310, C312, L304
Yes
No Resolder or change
Check U400 UCP101 5
pin 13 = 2.9V
Yes
Resolder or change
UCP201
3-14
Flow Chart of Troubleshooting
1
2
3
4
5
3-15
RFS400
Flow Chart of Troubleshooting
G A C G
1 2 3 4
TP102 TP101
L301 L300 C302
R300 C303
L302 C304
L303 C305
VBAT
C358
C309
DPCS_PAM_IN
GSM_PAM_IN
F400
C310
3 OUT C311 12
DCS_LNA_IN_N
4 1
OUT IN ANT
L304
C312 G G 7
3-16
VBATT
5 2 1 L305
DCS_LNA_IN_P DCSIN
11 10
GSM900_IN VCC1 C315 C316
3
VCC2
20
RX1
C317 2
F401 V1 C320
C319 16
RX2 PAM400
3 OUT
GSM_LNA_IN_N R303
4 1 8
OUT IN VRAMP VAPC
L306 4 VBS
G G
U409 9
VMOD_EN VMOD_EN
5 2 6
GSM_LNA_IN_P VTX
14
NC
18
NC
C329 C330 U407 C328
GND GND GND GND GND GND
BAND_SEL1 5 13 15 17 19 21
TX_EN
Flow Chart of Troubleshooting
VRF_2.9V
C300 C301 3 4
HOT GND2
OSC400
GND1 HOT
2 1
26M_OUT RTXQN
AFC RTXQP
R301
C306
C307 VCCD_2.9V C308
18
17
19
20
22
24
21
23
VBAT
VCC_REF
V A FC
REFIN
REF_OP
QB
Q
VCC_BBQ
REFINB
RX1900B
25
16 VLDO2
RX1900
26
VLDO1
15
RX1800B DCS_LNA_IN_P
C313
27
C314 VBAT
RX1800
14
DCS_LNA_IN_N
28
VDD U400
13
RX900B GSM_LNA_IN_P
29
VCC_TXVCO
12
RX900 GSM_LNA_IN_N
C359 C318
30
DPCS_PAM_IN TXOP_HI
11
RX850B
R304 C321
31
GSM_PAM_IN TXOP_LO
10
RX850
32
VLDO3
V C C _B B I
9
VCC_FE
GND
SD ATA
33
SCLK
SEN
NC
NC
NC
IB
I
7
6
35
34
5
2
8
4
3
1
C324 C325 C326 C323
R305
SERLE
SERCLK
SERDAT
RTXIN
RTXIP
3-17
Flow Chart of Troubleshooting
3-2-3. GSM Tx
2 CONTINUS TX ON CONDITION
Check U400pin Check and TX POWER DAC : 554 CODE
No Check U400 No APPLIED
15 : about 2~3 pin 6 : 2.8V ? change CH : 62ch
dbm? UCP201,UCP101 RBW : 100KHz
VBW : 100KHz
Yes SPAN : 10MHz
REF LEV : 10dBm
Yes ATT : 20dB
1 Check and No PAM400 pin 11:
change about 4~5dbm?
RFS400,
L300,L301
Yes
1
U400 3
check & change
PAM400 pin 7 : No Battery, UCP101 4
3.7V ? check & change
3
Yes 7
PAM400 pin 8 : No 5
1.2V ? UCP101 check 2 4 5 6 8
2
Yes
PAM400 pin 12: No
about -5dbm?
Yes
PAM400 pin 6 : No UCP101 6
3V ? check
Yes U400 pin No 8
12,13,28,29 : 2.9V UCP101
PAM400 ? change or resolder
change or resolder
Yes
U400 7
change or resolder
3-18
Flow Chart of Troubleshooting
3-2-4. DCS Tx
CONTINUS TX ON CONDITION
Check U400 pin TX POWER DAC : 560 CODE
No Check U400 No APPLIED
16 : about 2~3 Check and change CH : 698CH(DCS), 660CH(PCS)
pin 6 : 2.8V ?
dbm? UCP201,UCP101 RBW : 100KHz
VBW : 100KHz
Yes 2 SPAN : 10MHz
Yes REF LEV : 10dBm
ATT : 20dB
1 Check and
change No PAM400 pin 1 :
RFS400, about 4~5dbm?
L300,L301
Yes
U400 3
check & change 1
No
PAM400 pin 7 : Battery, PAM400 4
3.7V ? check & change
Yes
3
PAM400 pin 8 : No 5 7
PAM400 check
1.2V ?
Yes 2 4 5 6 8
2
PAM