Samsung SGH-C140 Service Manual
GSM TELEPHONE
SGH-C140
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
EGSM 900
Phase 2
Freq. Band[MHz]
Uplink/Downlink
ARFCN range 0~124 & 975~1023 512~885
Tx/Rx spacing 45 MHz 95 MHz
Mod. Bit rate/
Bit Period
Time Slot Period/Fram e
Period
Modulation 0.3 GMSK 0.3 GMSK
MS Power 33 dBm~5 dBm 30 dBm~0 dBm
880~915
925~960
270.833 kbps
3.692 us
576.9 us
4.615 ms
DCS1800
Phase 1
1710~1785
1805~1880
270.833 kbps
3.692 us
576.9 us
4.615 ms
Power Class 5pcl~19pcl 0pcl~15pcl
Sensitivity -102 dBm -100 dBm
TDMA Mux 8 8
Cell Radius 35 Km 2 Km
1-1
Speclflcation
1-2. GSM Tx Power Class
TX Power
control level
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
10 23±2 dBm
11 21±2 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3 dBm
18 7±3 dBm
19 5±3 dBm
GSM900
TX Power
control level
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
DCS1800
15 0±5 dBm
1-2
2. Exploded View and Parts List
2-1. Cellular phone Exploded View
QFR01
QKP01
QLC01
QSP01
QMO01
QAN02
QRE01
QCR66
QME01
QMP01
QMI01
QRF03
QRF01
QBA01
2-1
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
QBA00
Main Electrical Parts List
2-2. Cellular phone Parts list
Design LOC Discription SEC CODE
QAN02
QBA00
QBA01
QCR66
QFR01
QKP01
QLC01
QME01
QMI01
QMO01
QMP01
QRF01
QSP01
QRE01
ANTENNA-SGHC140 GH42-01048A
PMO-COVER BATTERY GH72-35803A
INNER BATTERY PACK-800MAH,MAIN GH43-02589A
SCREW-MACHINE 6001-002047
ASSY CASE-FRONT GH98-03014A
ASSY KEYPAD-(XEF/IAA) GH98-03633A
LCD-MAIN MODULE (SGHC140) GH07-01030A
UNIT-DOME SHEET GH59-03843A
MICROPHONE-ASSY-SGH-C140 GH30-00333A
MOTOR-DC 3101-001324
PBA MAIN-SGHC140 (PBA MAIN) GH92-03244A
MPR-TAPE RF SHEET GH74-28399A
SPEAKER 3001-002074
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(EU_B GH44-01597A
LABEL(P)-IMEI GH68-01335D
LABEL(P)-WATER SOAK GH68-02026A
LABEL(P)-WATER SOAK GH68-02026A
MANUAL USERS-EU CZECH GH68-13465A
LABEL(R)-MAIN(EU) GH68-13489A
BOX(P)-UNIT MAIN(EU) GH69-04914A
NPR-BRACKET LID GH71-07160A
MPR-SPONGE SPK A GH74-28347A
MPR-SPONGE SPK B GH74-28350A
MPR-VINYL BOHO WINDOW GH74-30206A
2-3
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2-3. Assembly
Main Electrical Parts List
1
Motor Speaker Mike
1) Solder the motor, speaker and mike.
※
caution
1) Be care of the polarity of wires.
2
Standard Points
1) Attach the LCD module to the PBA.
2) Solder LCD module to the PBA.
※
caution
1) Be careful, the motor wire isn’t down.
2) Be careful with the damages of FPCBS.
3
1
1) Assemble the LCD module.
※
caution
1) Be care of scratch and molding damage.
2) Keep the orders.
2
4
3
4
Rotate 3 times
1) Put the Speaker into the Carrier.
2) Put the Motor into the Carrier.
※
caution
1) Be care of damage to the FPCBs.
2) Be care of scratch and molding damage.
Rotate 1 time
2-4
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
5
2
1
1) Assemble the LCD module.
※
caution
1) Be care of scratch and molding damage.
2) Keep the orders.
6
3
1) Check the PBA
※
caution
1) Be care of scratch and molding damage.
7
Put the left side
of the PBA
1
PushthebackofMIC
1) Put the PBA to the FRONT
※
caution
1) Be care of scratch and molding damage.
Press right side
of the PBA.
2
to attach firmly.
8
1) Screw down 4 Points
※
caution
1) Be care of scratch and molding damage.
2-5
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
2-4. Disassembly
1
1) Unscrew the 4 points.
2) Separate the REAR from the FRONT using
an assembly stick.
※
caution
1) Be care of scratch and molding damage.
2
1) Disassemble the FRONT from the PBA.
※
caution
1) Be care of scratch and molding damage.
2) Be care of damage to the PBA.
3
Check the MIC holder.
It could be lost easily.
1) Check the FRONT.
※
caution
1) Be care of scratch and molding damage.
4
2 1
3
1) Disassemble the Carrier from the PBA.
※
caution
1) Be care of damage to the wires.
2) Be care of scratch and molding damage.
2-6
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This Document can not be used without Samsung's authorization
Main Electrical Parts List
5
1) Detach the Speaker and Motor from the
Carrier using tweezers.
※
caution
1) Be care of scratch and molding damage.
2) Be care of damage to the wires.
6
1
3
4
1) Disassemble the LCD module from the PBA
※
caution
1) Be care of scratch and molding damage.
2) Be care of damage to the LCD module.
2
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
Flow Chart of Troubleshooting
3.
3-1. Baseband
3-1-1. Power ON
'Power ON' does not work
check the current
consumption
>= 100mA
Yes
Check the Voltag e
of the Battery
>= 3.3V
Yes
Check the pin
C100,C101,C102 of
UCP101 is >= 2.8V
>=2.8V
Yes
Check the clock signal
atpin#3ofOSC400
Freq=26Mhz,
Vrms >=300mV
No
No
No
No
Download again
Charge the battery
Check "Power
On"
key?
Check the clock generation
circuit OSC400
Yes
No
check keypad
1
check UCP101 and C101
2
Yes
Check the Initial Operation
Yes
END
3-1
Flow Chart of Troubleshooting
V9.2_DCCV
V9.2_DCCVV9.2_ACCV
TABV
001C
0(BD_PSD
)51:
2D
)51(BD_PSD
)41(BD_PSD
3D
)31(BD_PSD
3E
2E
)21(BD_PSD
)11(BD_PSD
3F
2F
)01(BD_PSD
)9(BD_PSD
1F
0
0
1
8
9
1
J
2
1
J
J
K
5
6
4
5
6
7
1
1
1
1
C
C
S
S
S
S
N
N
D
D
D
D
N
N
N
N
G
G
G
G
51BD
41BD
31BD
21BD
11BD
01BD
0
8
9
1
6
7
8
9
7
H
J
3
2
1
1
S
S
D
D
N
N
G
G
G
G
G
H
H
H
6
7
8
9
0
1
1
1
S
S
S
S
S
S
D
D
D
D
D
D
N
N
N
N
N
N
G
G
G
G
G
G
3
0
7
1
8
9
F
G
F
F
3
4
5
2
S
S
S
S
D
D
D
D
N
N
N
N
G
G
G
G
3
1
4
1
4
7
P
D
B
C
F
8
L
1
L
V
T
T
S
C
D
C
C
D
N
N
N
O
O
G
_
_
G
D
D
N
D
V
G
0
1
1
1
1
6
6
6
1
P
N
A
L
F
M
B
V
B
D
D
D
D
D
D
D
D
D
N
D
N
V
V
V
G
G
101C201C
5
1
3
5
5
2
6
4
4
G
K
R
J
4
1
2
3
2
S
S
S
S
O
I
S
S
S
S
_
V
V
V
V
D
D
V
1
1
3
F
J
K
N
M
N
1
2
2
1
3
R
D
C
D
D
O
U
I
S
D
D
D
C
_
P
V
V
V
H
D
_
_
D
D
D
V
N
N
G
G
0
5
3
1
1
1
8
C
B
B
E
7
1
5
Q
6
C
D
D
D
S
N
D
P
G
_
V
D
N
G
11C
43DDV
D
V
31J
21DDV
9N
KLC_PU
01R
TSR_PU
01P
OI_PU
11J
OI_MIS
11K
TSR_MIS
41K
KLC_MIS
801C
KLCMIS
TSRMIS
S
ATADMI
OI_MIS
TSR_MIS
KLC_MIS
②
①
3-2
3-1-2. Initial
Flow Chart of Troubleshooting
Initial Failure
check the pin RSTB
of UCP201 is LOW?
Yes
check the pin CKI of
UCP201 is 13Mhz?
Yes
Check the clock signal
at pin #3 of OSC400
Freq=26Mhz?
Yes
No
No
No
Check UCP201
Check R308, R306, C341
check
1
2
3
OSC400
Check VCCD_2.9V, VCCD_1.
8V of UCP101 "High" when
the phone is boot on?
Yes
Check the Initial Operation
Yes
END
3-3
No
Check UCP101
4
Flow Chart of Troubleshooting
V8.1_DCCV
.2_DCCV
202R
402C
V8.1_DCCV
V9.2_DCCV
502C
V9
602C
102PT
0
0
1
7
9
8
1
1
L
J
L
L
M
S
S
S
S
S
S
S
S
V
V
V
V
1
9
1
1
7
7
6
6
7
K
L
H
H
G
G
K
J
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
S
V
V
V
V
V
V
V
V
V
6
6
7
3
1
3
6
A
F
S
S
S
S
V
V
1
5
2
C
A
A
R
S
D
D
S
D
D
V
V
V
1
1
4
1
R
D
D
D
D
V
V
2
1
R
E
G
R
T
D
D
D
D
D
D
D
D
D
D
V
V
V
V
V
6
5
6
7
6
4
1
B
1
1
1
1
1
E
E
E
E
E
D
D
D
D
D
D
V
V
V
2
8
N
U
U
P
U
E
E
E
E
E
D
D
D
D
D
D
D
D
D
D
V
V
V
V
V
6
1
5
1
M
E
D
D
V
0
1
1
1
1
G
F
E
B
L
L
F
E
L
L
E
D
P
P
R
D
D
D
V
V
_
_
X
S
D
S
D
V
V
2
0
7
1
8
1
1
1
C
F
D
E
C
I
A
A
B
C
K
T
T
S
D
C
S
S
R
D
V
R
V
V
V3_CTR
V
702C
FERV
RT_M31KLC
TSR_RT
21F
ODT
51F
TSRT
21H
IDT
21G
SMT
31H
KCT
TSR_RT
3
4
2
1
3-4
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