Samsung SGH-U300 Service Manual
GSM TELEPHONE
SGH-U300
GSM TELEPHONE
CONTENTS
Specification
1.
Exploded View and Parts list
2.
Chart of Troubleshooting
3.
Array course control
4.
Block Diagrams
5.
PCB Diagrams
6.
MAIN Electrical Parts List
7.
Reference data
8.
Safety Precautions
9.
Product Function
10.
GSPN(Global Service Partner Network)
Country Web Site
North America service.samsungportal.com
Latin America latin.samsungportal.com
CIS cis.samsungportal.com
Europe europe.samsungportal.com
China china.samsungportal.com
Asia asia.samsungportal.com
Mideast
This Service Manual isaproperty of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
Africa mea.samsungportal.com
&
Samsung Electronics Co.,Ltd.
ⓒ
2007. 05.
Rev.1.0
Specification
1.
GSM/CDMA General Specification
1-1.
GSM TX power class
1-2.
Exploded View and Parts list
2.
Cellular phone Exploded View
2-1.
Cellular phone Parts list
2-2.
Disassembly
2-3.
Assembly
2-4.
ChartofTroubleshooting
3.
Baseband
3-1.
...............................................................................................................2-4
....................................................................................................................2-8
............................................................................................................3-1
Contents
...........................................................................1-1
...............................................................................................1-2
..................................................................................2-1
............................................................................................2-2
3-1-1.
3-1-2.
3-1-3.
3-1-4.
3-1-5.
3-1-6.
3-1-7.
3-1-8.
3-1-9.
3-2.
3-2-1.
3-2-2.
3-2-3.
3-2-4.
3-2-5.
3-2-6.
3-2-7.
Power ON
System Initial
SIM Part
Charging Part
Microphone Part
Speaker Part
Receiver Part
Camera Part
LCD
.............................................................................................................3-26
RF
......................................................................................................................3-13
EGSM Receiver
EGSM Transmitter
DCS Receiver
DCS Transmitter
PCS Receiver
PCS Transmitter
UMTS Receiver
.....................................................................................................3-1
................................................................................................3-6
.......................................................................................................3-8
.............................................................................................3-10
.........................................................................................3-13
..............................................................................................3-16
.............................................................................................3-20
..............................................................................................3-22
.........................................................................................3-30
.....................................................................................3-31
............................................................................................3-32
........................................................................................3-33
.............................................................................................3-34
.........................................................................................3-35
..........................................................................................3-40
3-2-8.
3-2-9.
UMTS Transmitter
BLUETOOTH
..............................................................................................3-45
......................................................................................3-41
Array course control
4.
Downloading Binary Files
4-1.
Pre-requsite for Downloading
4-2.
S/W Downloader Program
4-3.
Block Diagrams
5.
PCB Diagrams
6.
MAIN Electrical Parts List
7.
Reference data
8.
Reference Abbreviate
8-1.
Contents
......................................................................................4-2
................................................................................4-2
.....................................................................................4-3
..............................................................................................8-1
Safety Precautions
9.
Repair Precaution
9-1.
ESD(Electrostaically Sensitive Devices) Precaution
9-2.
Product Function
10.
......................................................................................................9-1
................................................9-2
Specification
1.
GSM/DCS1800/PCS1900 General Specification
1-1.
EGSM 900
Phase 2
Freq. Band[MHz]
Uplink/Downlink
ARFCN range 0~124 & 975~1023 512~885 512~810
Tx/Rx spacing 45
Mod. Bit rate/
Bit Period
Time Slot
Period/Frame
Period
Modulation 0.3
880~915
925~960
270.833
3.692
576.9
4.615
GMSK
MHz
kbps
us
us
ms
DCS1800
Phase 1
1710~1785
1805~1880
MHz
95
270.833
3.692
576.9
4.615
GMSK
0.3
kbps
us
us
ms
PCS1900
1850~1910
1930~1990
80
270.833
3.692
576.9
4.615
GMSK
0.3
MHz
kbps
us
us
ms
MS Power 33
Power Class 5
Sensitivity -102
TDMA Mux 8 8 8
Cell Radius 35
dBm~5 dBm
pcl
~19
dBm
Km
pcl
dBm~0 dBm
30
pcl
0
~15
-100
2
dBm
Km
pcl
dBm~0 dBm
30
pcl
0
-100
~15
dBm
-
pcl
1-1
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Specification
GSM TX power class
1-2.
TX Power
control l evel
EGSM900
533±2
631±2
729±2
827±2
925±2
10 23±2
11 21±2
dBm
dBm
dBm
dBm
dBm
dBm
dBm
TX Power
DCS1800
control level
030±3
128±3
226±3
324±3
422±3
520±3
618±3
dBm
dBm
dBm
dBm
dBm
dBm
dBm
TX Power
control l evel
PCS1900
030±3
128±3
226±3
324±3
422±3
520±3
618±3
dBm
dBm
dBm
dBm
dBm
dBm
dBm
12 19±2
13 17±2
14 15±2
15 13±2
16 11±3
17 9± 3
18 7±3
19 5±3
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
716±3
814±3
912±4
10 10±4
11 8±4
12 6±4
13 4±4
14 2±5
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
716±3
814±3
912±4
10 10±4
11 8±4
12 6±4
13 4±4
14 2±5
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
15 0±5
1-2
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dBm
15 0±5
dBm
2. Exploded View and Parts List
2-1. Cellular phone Exploded View
QFU01
QLC01
QMW01
QCW01
QSC01
QCA01
QHI19
QCR12
QFL04
QHI01
QAU01
QMI01 : GH30-00177C
QMI03
QFL01
QSC37
QCB01
QVK01
QCR32
QSC31
QMO01
QKP01
QME01
QMI01 : GH81-06085A
QFR01
QAN02
QBA01
QMP01
QSC29
QCR32
QVO01
QIF01
QCR12
QCR06
2-1
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QRE01
QSD01
Exploded View and Parts List
2-2. Cellular phone Parts list
Design LOC Description SEC CODE
QAN02 INTENNA-SGH-U300 GH42-01154A
QAU01 AUDIO-RECEIVER 3009-001262
QBA01 SOFT BATTERY PACK-690MAH,BLK,E GH43-02812A
QCA01 CAMERA MODULE GH59-04215A
QCB01 AS-COXIAL CABLE GH81-06648A
QCR05 SCREW-MACHINE 6001-001478
QCR12 SCREW-MACHINE 6001-001530
QCR12 SCREW-MACHINE 6001-001530
QCR17 SCREW-MACHINE 6001-001460
QCR32 SCREW-MACHINE 6001-001700
QCW01 PMO-CAM WINDOW GH72-37590A
QFL01 ASSY COVER-F/LOWER SUB GH98-03829B
QFL04 ASSY DECO-F/LOWER SUB GH98-03868B
QFR01 ASSY COVER-FR SUB GH98-03750B
QFU01 ASSY COVER-F/UPPER GH98-03752B
QHI01 ASSY HINGE GH98-03062A
QHI19 IPR-HINGE BLOCK GH70-02395A
QIF01 PMO-COVER IF GH72-37584B
QKP01 ASSY KEYPAD-(RUSS/BLU) GH98-04906A
QLC01 LCD-MODULE SGHU300 GH07-01110A
QME01 KEY FPCB-SGHU300 KEY PBA GH59-04213A
QMI01 MICROPHONE-ASSY-5.25MM GH30-00177C
QMI01 AS-MIC SVC GH81-06085A
QMI03 RMO-MIC HOLDER FR GH73-07324A
QMI03 RMO-MIC HOLDER FR GH73-07324A
QMO01 MOTOR DC-MOTOR,SPEAKER MODULE( GH31-00316A
QMP01 PBA MAIN-SGHU300 GH92-03487A
QMW01 AS-LCD WINDOW GH81-06234A
QRE01 ASSY COVER-REAR COVER SUB GH98-03830B
QSC01 RMO-RUBBER LOWER SCREW CAP GH73-09620B
QSC29 RMO RUBBER-BT GH73-10606A
QSC31 RMO RUBBER-RESET DOME GH73-10607A
QSC37 RMO-RUBBER PCB BASE GH73-09146A
QSD01 PMO-SIM COVER GH72-39826B
QVK01 KEY FPCB-SGHU300 VOLUME KEY GH59-04214A
QVO01 PMO-KEY VOLUME GH72-39356A
2-2
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Exploded View and Parts List
Description SEC CODE
CBF INTERFACE-DLC,X830,SIL,PCB GH39-00720B
ADAPTOR-SGHE690,SIL,EU,A_TYPE GH44-01361B
EARPHONE-EARPHONE,SGHE490,SIL, GH59-03883B
LABEL(R)-WATER SOAK GH68-09361A
TAPE INSU GH74-31680A
MPR-INSU TAPE GH74-31681A
MPR-SPONGE PCB A GH74-31689A
MPR-TAPE FPCB GH74-31994A
TAPE-GASKET BT GH74-33420A
AS-LCD TAPE GH81-06235A
AS-LCD SUB GH81-06335A
TAPE INSU GH74-31679A
TAPE INSU GH74-31710A
VINYL-BOHO FOLDER UPPER GH74-32275A
SPONGE-CAM GH74-30241A
TAPE-GASKET BATT CONN GH74-33669A
VINYL-BOHO REAR GH74-34439A
S/W CD-SGHU300 PC STUDIO 3.1 GH46-00408A
MANUAL-SFC GH68-04336A
MANUAL USERS-EU RUSSIAN GH68-14481A
BAG PE 6902-000634
LABEL(P)-UNIT SEAL GH68-00518B
LABEL(R)-MAIN(SER) GH68-14742B
BOX(P)-UNIT MAIN(SER) GH69-05380B
CUSHION-CASE(EU) GH69-05381A
2-3
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Exploded View and Parts List
2-3. Disassembly
1
1) Remove the SCREW COVER on the REAR.
※
caution
1) Be careful of damage of cover and scratch.
2
1) Disassemble the SCREW 6 POINT.
2) Disassemble this set from upper part.
※
caution
1) Be careful of damage of cover and scratch.
2) When disassemble it, be careful not to change
on the REAR.
3 4
①
②
③
1) Separate the LCD CONNECOTOR.
2) Separate the BATT. CONNECOTOR.
3) Separate the KEY FPCB CONNECOTOR.
※
caution
1) Be careful not to occur some damages each
LCD CONNECTOR FPCB.
2-4
1) Seperate the battery from the SET.
2) After disassemble the LCD CONNECTOR,
seperateaPCBfixedSCREW2POINT.
※
caution
1) When separate the battery, using a stick's no
sharp side, put this stick in the picture's grey
part with lever theory.
2) Be careful of damage and change a battery.
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Exploded View and Parts List
5
1) Separate a RF Cable.
2) Separate a PCB.
※
caution
1) Be careful of damage and change of cable and
connector.
2) Be careful of damage of BGA components.
6
1) Separate a Intena and front Ass'y.
※
caution
1)WhendisassemblingELkeyFPCB,becareful
not to be damaged on the FPCB.
1) Be careful of bending of a Cable.
7 8
1) Take off a KEY PAD flange fixed Tape.
2) Take off a PCB RUBBER BASE.
※
caution
1) Remove these using tweezers.
2) Be careful of damage of appearance and
scratch.
1) Separate a KEY PAD care about flange.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Be careful of damage of a key PAD.
2-5
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Exploded View and Parts List
9
1) Seperate a key FPCB carefully about a
connector of KEY FPCB and MIC.
※
caution
1) Be careful of damage of a FPCB crack and
connector.
10
1) Separate the Front and Key FPCB.
※
caution
1) When separate it, be careful of bending of the
front.
2)BecarefultobesqueezedandtearaFPCB
and connector.
3) Be careful of damage of appearance and
scratch.
11 12
1) Put up the Folder stopper and turn.
2) Disassemble two screws.
※
caution
1) Remove these using tweezers.
2) Be careful of damage of appearance and
scratch.
1) Take off a CAMERA COVER.
※
1) Be careful of damage of appearance and
caution
scratch.
2-6
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Exploded View and Parts List
13
1) Disassemble a camera component.
※
caution
1) Be careful of damage of a camera component
and alien substances.
2) Be careful of damage of a FPCB crack and
connector.
3) Be careful of damage of appearance and
scratch.
14
1) Using tweezers, push a hinge and E-ring in
Front.
※
caution
1) Be careful of damage a FPCB.
2) Be careful of damage of appearance and
scratch.
15 16
1) Disassemble a Folder Ass'y and Front Ass'y.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Be careful of damage of a F-PCB.
1) Disassemble a screw of hinge's block.
2) Seperate a hinge's block on FOLDER LOWER.
※
1) Be careful of damage of appearance and
caution
scratch.
2-7
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Exploded View and Parts List
17
1) Take off screw caps.
2) At FOLDER LOWER, separate two screws.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Be careful of damage of CAMERA FPCB.
18
1) Separate Folder Lower and Folder Upper.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Separate a sub window as slightly raising and
setting down.
19
1) Seperate a Folder Lower and LCD.
※
caution
1) Disassemble carefully with lower component of LCD.
2) Be careful of damage of appearance and scratch.
3) Be careful of damage of FPCB.
2-8
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2-4. Assembly
Exploded View and Parts List
1
1) Put LCD Ass'y in Folder Lower.
※
caution
1) Disassemble carefully with lower component of
LCD.
2) Be careful of damage of appearance and
scratch.
3) Be careful of damage of FPCB.
2
1) Assemble Folder Lower and Folder Upper.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Assemble a sub window as slightly raising and
setting up.
3 4
1) Screw up two screws at FOLDER LOWER.
2) Put in screw caps.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Be careful of damage of FPCB.
1) Assemble a hinge block at FOLDER LOWER.
2) Screw up a screw.
※
caution
1) Be careful of damage of appearance and
scratch.
2) Be careful of insertion direction of a hinge block.
2-9
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Exploded View and Parts List
5
1) Attach the LCD on the LCD Bracket by guide
lib of LCD.
2) Solder the SPK/MOT.
7 8
6
1) Assemble the LCD and the MAIN PBA.
※
caution
1) Connect the LCD F-PCB connector on the MAIN
PBA.
KEY PAD
FLANGE
FIXED TAPE
1) Attach the fixed Tape of KEY PAD flange.
2) Attach PCB RUBBER BASE.
PCB RUBBER BASE
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1) Using tweezers, fix the hinge and E-ring inner
of Front.
2-10
Exploded View and Parts List
9
1) Put in a camera at decided spot.
2) Assemble camera connector and camera.
※
caution
1) Be careful of damage of F-PCB.
2) Assemble the camera with direct direction.
(Assemble that flat part is faced with below part.)
10
1) Assemble a camera cover.
※
caution
1) When assemble, be careful of direction of LCD
CONNECTOR.
2) When assemble, check some click sound.
11 12
1) Screw up two screws.
2) Put up the Folder stopper and turn.
※
caution
1) Be careful of the damage of cover and scratch.
2) Check the loosing of stopper.
1) Assemble the fintenna.
※
1) Be careful of the damage of cover and scratch.
caution
2-11
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Exploded View and Parts List
13
1) Screw up two PCB fixed screws.
※
caution
1) Be careful of damage of cover and scratch.
14
1) Connect RF CABLE on the connector.
※
caution
Keep in order RF cable around MFA.
1)
15 16
①
②
③
1) Assemble REAR from lower part.
2) Screw the six screws.
1) Assemble the battery.
2) Assemble the LCD CONNECOTOR.
3) Assemble the BATT. CONNECOTOR.
4) Assemble the KEY FPCB CONNECOTOR.
※
caution
1) Be careful of damage of CONNECTOR FPCB.
3) Put screw cap in upper 2 point.
※
1) Be careful of damage of cover and scratch.
2) When assemble, be careful not to be chewed volume
3) upper(2 point)/lower(4 point)SCREW size is
caution
key and Ear Cover.
different.
2-12
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Exploded View and Parts List
2-5. LCD Window Assembly
1
1) Check a groove between LCD MODULE and Main window.
2) Using a thin tool that is not sharp, put it in the groove and remove Main window slowly.
※
caution
1) Work it slowly.
2) Be careful because Main window is broken whenyou put it out suddenly.
3) when you disassemble it, be careful not to leave some a foreign substance and fingerprint on LCD
window.
2
1) Be careful not to leave fingerprint on Main LCD.
※
caution
1) Work it slowly.
2) Be careful because Main window is broken whenyou put it out suddenly.
3) when you disassemble it, be careful not to leave some a foreign substance and fingerprint on LCD
window.
2-13
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Exploded View and Parts List
3
1) When attach a LCD window again, Check reverse disassembly order or a assembly standard.
※
caution
1) Attach with a standard reference in circles.
2-14
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3. Flow Chart of Troubleshooting
3-1 BASEBAND
3-1-1. Power ON
'Power On' does not work
Yes
Check the current
consumption more
than 100mA
Yes
Check the VBAT
more than 3.3V
Yes
Check the
VLDO_7_1.8V
of UCP300 is more
than 1.8V
Yes
U201
Check
pin 1 = 1.8V
pin 4 = 1.6V
pin 7,9 = 1.5V
Yes
No
No
No
No
Download again
Charge the Battery
①
Check UCP300 and C325
②
Check U307
③
Check VRF of
UCP300=2.9V
Yes
Check C110 & C112
Freq = 13MHz
Vp-p > 0.8V
Yes
Check the initial operation
Yes
END
3-1
No
Check UCP300
and C326
④
No
Check the clock C110 & C112
Flow Chart of Troubleshooting
3-2
Flow Chart of Troubleshooting
1
3
V
9
.
2
_
B
C
C
V
V
5
.
1
_
C
T
R
V
A
T
T
K
L
A
S
C
D
R
_
_
_
M
M
M
I
I
I
O
S
S
S
I
_
_
_
5
1
3
C
T
A
B
V
3
0
3
V
9
.
2
_
D
C
C
V
V
8
.
1
_
D
C
C
V
V
9
.
2
_
A
C
C
V
V
9
.
2
_
F
R
V
C
2
0
3
C
4
0
3
C
1
0
3
C
K
C
E
H
C
_
R
A
E
1
1
C
4
3
D
D
V
5
D
D
0
1
C
D
7
6
1
B
3
Q
D
8
E
1
C
S
5
1
B
2
C
S
1
K
5
R
U
1
1
F
1
D
D
3
J
2
D
D
3
M
3
D
D
6
N
I
1
O
5
N
I
2
O
4
J
S
1
S
G
5
S
2
S
4
K
S
3
S
2
R
S
4
S
6
P
D
D
1
1
N
D
D
0
1
M
B
D
6
A
B
D
6
F
V
D
1
1
L
V
D
3
1
P
L
T
C
4
C
L
T
C
4
B
3
C
D
3
1
D
1
S
D
7
F
2
S
D
8
F
3
S
D
9
F
4
S
D
0
1
F
5
S
D
G
7
6
S
D
G
8
7
S
D
G
9
8
S
D
0
G
1
9
S
D
6
H
0
1
S
7
H
1
1
S
8
H
2
1
S
9
H
3
1
S
7
J
4
1
S
8
J
5
1
S
9
J
6
1
S
1
J
0
7
1
S
0
1
K
5
C
N
1
6
C
N
2
)
5
1
:
0
(
B
D
_
P
S
D
_
P
P
P
M
S
S
S
I
S
C
C
C
0
0
3
1
1
9
1
1
1
R
J
P
N
J
2
T
O
K
O
I
I
1
S
L
_
_
D
R
C
P
M
_
D
_
I
U
V
P
P
S
U
U
V
D
V
G
N
_
D
N
P
G
_
D
N
P
G
C
H
_
D
N
G
V
V
V
_
D
D
V
_
D
D
V
V
V
V
V
D
V
G
N
D
V
G
N
V
D
N
G
O
V
_
D
D
O
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A
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N
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C
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M
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A
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N
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B
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U
A
B
T
O
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P
A
O
U
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N
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A
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A
A
T
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N
T
R
X
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Q
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T
R
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6
3
3
C
3-3
Flow Chart of Troubleshooting
VBAT
8
2
3
R
TA301
1
ADJ2
2
MODE|DATA
3
VIN
4
FB1
5
DEF_1
U307
2
D
N
G
11
SW2
EN2
GND
EN1
SW1
HP_CORE_1.6V
L304
10
9
8
7
6
L305
C345
VCCD_1.8V
C344
D300
VLDO1_1.5V
C346
3-4
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