Samsung SGH-C450 User manual

GSM TELEPHONE
SGH-C450
GSM TELEPHONE CONTENTS
1. Safety Precautions
2. Specification
3. Product Function
4. Array course control
5. Exploded View and Parts List
6. MAIN Electrical Parts List
7. Block Diagrams
8. PCB Diagrams
9. Flow Chart of Troubleshooting
10. Reference data
11. Disassembly and Assembly
Instructions

Samsung Electronics Co.,Ltd.
2007. 08 Rev.1.0
ⓒ
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.
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 & Africa mea.samsungportal.com
GSPN (Global Service Partner Network)

SAMSUNG Proprietary-Contents may change without notice
1. Safety Precautions
1-1
This Document can not be used without Samsung's authorization
1-1. Repair Precaution
●Repair in Shield Box, during detailed tuning.
Take specially care of tuning or test, because the specification of cellular phone is sensitive for
surrounding interference(RF noise).
●Be careful to use a kind of magnetic object or tool, because performance of parts is damaged by the
influence of magnetic force.
●Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn
away.
●Use a thicken twisted wire when you measure level.
A thicken twisted wire has low resistance, therefore error of measurement is few.
●Repair after separate Test Pack and Set because for short danger (for example an
overcurrent and furious flames of parts etc) when you repair board in condition of
connecting Test Pack and tuning on.
●Take specially care of soldering, because Land of PCB is small and weak in heat.
●Surely tune on/off while using AC power plug, because a repair of battery charger is
dangerous when tuning ON/OFF PBA and Connector after disassembling charger
●Don't use as you pleases after change other material than replacement registered on SEC System.
Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

SAMSUNG Proprietary-Contents may change without notice
Safety Precautions
1-2
This Document can not be used without Samsung's authorization
1-2. ESD(Electrostatically Sensitive Devices) Precaution
Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD
(Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.
You can prevent from ESD damage by static electricity.
●Remove static electricity remained your body before you touch semiconductor or parts with
semiconductor. There are ways that you touch an earthed place or wear static electricity
prevention string on wrist.
●Use earthed soldering steel when you connect or disconnect ESD.
●Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by
static electricity.
●Don't unpack until you set up ESD on product. Because most of ESD are packed by box and
aluminum
plate to have conductive power,they are prevented from static electricity.
●You must maintain electric contact between ESD and place due to be set up until ESD is connected
completely to the proper place or a circuit board.

SAMSUNG Proprietary-Contents may change without notice
2. Specification
This Document can not be used without Samsung's authorization
2-1
EGSM 900 DCS1800
Freq. Band[MHz]
Uplink/Downlink 880~915 925~960 1710~1785 1805~1880
ARFCN range 0~124 & 975~1023 512~885
Tx/Rx spacing 45MHz 95MHz
Mod. Bit rate/
Bit Period 270.833kbps 3.692us 270.833kbps 3.692us
Time Slot Period/Frame
Period 576.9us 4.615ms 576.9us 4.615ms
Modulation 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 30dBm~0dBm
Power Class 4
(max +33dBm) 1 (max +30dBm)
Sensitivity -102dBm -100dBm
TDMA Mux 8 8
Cell Radius 35Km 2Km
2-1. GSM General Specification

SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Specification
2-2
TX Power
control level GSM900
533±2dBm
631±2dBm
729±2dBm
827±2dBm
925±2dBm
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±3dBm
18 7±3 dBm
19 5±3 dBm
TX Power
control level DCS1800
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±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
2-2. GSM TX power class

SAMSUNG Proprietary-Contents may change without notice
3. Operation Instruction and Installation
3-1
This Document can not be used without Samsung's authorization
Main Function
S20PinTA
 No Java
NoMMS
 FM radio
WAP2.0
10PolyS/WMIDI
 Dual band(900/1800MHz)
 GPRS Class 10
VGA camera

SAMSUNG Proprietary-Contents may change without notice
Operation Instruction and Installation
3-2
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
4. Array course control
4-1
This Document can not be used without Samsung's authorization
4-1. Software Adjustments
1. JIG Box: Download, Trace, Calibration, etc
2. RF test cable: RF test
3. Test cable: JIG to phone
4. Serial cable: PC to JIG
5. TA (Travel Adaptor)

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-2
This Document can not be used without Samsung's authorization
4-2. Software Downloading
4-2-1. Downloading Binary Files
• 2 binary files for downloading C450.
–C450XAGD3 .cla
–C450XAGD3.tfs
4-2-2. Pre-requsite for Downloading
• Downloader Program(C450 Downloader 2.0NEW)
• SGH-C450 Mobile Phone
•JIGBOX
• Test Cable
• Serial Cable
• Binary files

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-3
This Document can not be used without Samsung's authorization
4-2-3. S/W Downloader Program
1. Load the binary download program by executing the “C450 Downloader 2.0NEW”.
2. Select the Port, Baud Rate and Mode.

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-4
This Document can not be used without Samsung's authorization
3. Select the binary files what you want to download

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-5
This Document can not be used without Samsung's authorization
4. Press the "Start" button and connect the Handset
5. When downloading is complete, automatically the small window was showed up..

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-6
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
5. Exploded View and Parts List
5-1
This Document can not be used without Samsung's authorization
5-1. Cellular phone Exploded View
QMW02
QKP01
QLC01
QMP01
QSP01
QAN02
QMO01
QRE01
QRF01
QCR68
QFR01
QME01
QCR17
QSH01
QCA01
QBA01
QBA00
QMI01
QSP05
QRF03
QMI03

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
5-2
This Document can not be used without Samsung's authorization
Design LOC Description SEC CODE
QAN02 INTENNA-SGHC420 GH42-01240A
QBA00 PMO COVER-BATTERY GH72-41901B
QBA01 INNER BATTERY PACK-750MAH,BLK, GH43-02483A
QCA01 CAMERA MODULE GH59-04223A
QCR17 SCREW-MACHINE 6001-001460
QCR68 SCREW-TAPPING 6002-001399
QKP01 ASSY KEYPAD-(EU/BLK) V3 GH98-06072B
QLC01 LCD-LCD MODULE GH07-01056A
QME01 DOME SHEET-DOME SHEET 22KEY(MA GH59-04572A
QMO01 MOTOR DC GH31-00296A
QMP01 PBA MAIN-SGHC450 GH92-03544A
QMW02 PCT COVER-WINDOW MAIN GH72-41907B
QRE01 ASSY CASE-REAR GH98-05044B
QRF01 TAPE-SHEET RF GH74-32599B
QSH01 ASSY BRACKET-SHIELD CAN GH98-05378A
QSP01 SPEAKER 3001-002100
QMI01 MICROPHONE-ASSY-SGHC420 GH30-00390A
QMI03 AS-SCHS299 MIC RUBBER HOLDER GH81-06644A
QFR01 ASSY CASE-FRONT GH98-05043B
QRF03 PMO COVER-EAR V2 GH72-42135B
QSP05 ASSY DECO-SPK GRILL GH98-04853A
5-2. Cellular phone Parts List

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
5-3
This Document can not be used without Samsung's authorization
Description SEC CODE
BAG PE 6902-000634
ADAPTOR-ATADS10EBE,BLK,EU GH44-01702A
EARPHONE-AAEP405MBE,S20,BLK,EU GH59-04874A
LABEL(P)-UNIT SEAL GH68-00518B
LABEL(P)-IMEI GH68-01335D
LABEL(R)-WATER SOAK GH68-09361A
LABEL(R)-MAIN(EU) GH68-15206A
MANUAL USERS-EU ROMANIAN GH68-15253A
BOX-UNIT(EU) GH69-05570B
TAPE INSU GH74-13822A
TAPE INSU GH74-28075A
MPR-VINYL BOHO WINDOW GH74-31711A
VINYL-BOHO WINDOW MAIN TOP GH74-32641A

SAMSUNG Proprietary-Contents may change without notice
Exploded View and Parts List
5-4
This Document can not be used without Samsung's authorization

SAMSUNG Proprietary-Contents may change without notice
6. MAIN Electrical Parts List
6-1
This Document can not be used without Samsung's authorization
Design LOC Description SEC Code STATUS
BAT600 HEADER-BATTERY 3711-006228 SA
C100 C-CER,CHIP 2203-000854 SA
C101 INDUCTOR-SMD 2703-001726 SA
C103 C-CER,CHIP 2203-005050 SA
C104 C-CER,CHIP 2203-006048 SA
C105 C-CER,CHIP 2203-006361 SA
C106 C-CER,CHIP 2203-000812 SA
C107 C-CER,CHIP 2203-000812 SA
C108 C-CER,CHIP 2203-000812 SA
C109 C-CER,CHIP 2203-000489 SA
C110 C-CER,CHIP 2203-005482 SA
C112 C-CER,CHIP 2203-005482 SA
C113 C-CER,CHIP 2203-005234 SA
C115 C-CER,CHIP 2203-005234 SA
C116 C-CER,CHIP 2203-005288 SA
C118 C-CER,CHIP 2203-000254 SA
C119 C-CER,CHIP 2203-005288 SA
C120 C-CER,CHIP 2203-005482 SA
C121 C-CER,CHIP 2203-000278 SA
C122 C-CER,CHIP 2203-005050 SA
C123 C-CER,CHIP 2203-000278 SA
C124 C-CER,CHIP 2203-000679 SA
C202 C-CER,CHIP 2203-002709 SA
C203 C-CER,CHIP 2203-002709 SA
C204 C-CER,CHIP 2203-002709 SA
C205 C-CER,CHIP 2203-002709 SA
C206 C-CER,CHIP 2203-000254 SA
C207 C-CER,CHIP 2203-002709 SA
C208 C-CER,CHIP 2203-002709 SA
C209 C-CER,CHIP 2203-000254 SA
C210 C-CER,CHIP 2203-000254 SA
C211 C-CER,CHIP 2203-005482 SA
C212 C-CER,CHIP 2203-005482 SA
C213 C-CER,CHIP 2203-000854 SA
C214 C-CER,CHIP 2203-000679 SA
C216 C-CER,CHIP 2203-005482 SA
C217 C-CER,CHIP 2203-005481 SA
C218 C-CER,CHIP 2203-005481 SA
C219 C-CER,CHIP 2203-005482 SA
C220 C-CER,CHIP 2203-002709 SA
C221 C-CER,CHIP 2203-002709 SA
C300 C-CER,CHIP 2203-000278 SA
C301 C-CER,CHIP 2203-000330 SA
C302 C-CER,CHIP 2203-000812 SA
C303 C-CER,CHIP 2203-006824 SA
C304 C-CER,CHIP 2203-006824 SA
C305 C-CER,CHIP 2203-006257 SA
C306 C-CER,CHIP 2203-006257 SA
C307 C-CER,CHIP 2203-006257 SA
C308 C-CER,CHIP 2203-006257 SA
C309 C-CER,CHIP 2203-006257 SA
C310 C-CER,CHIP 2203-005482 SA
C311 C-CER,CHIP 2203-006257 SA

SAMSUNG Proprietary-Contents may change without notice
Main Electrical Parts List
6-2
This Document can not be used without Samsung's authorization
Design LOC Description SEC Code STATUS
C312 C-CER,CHIP 2203-006348 SA
C313 C-CER,CHIP 2203-006681 SA
C314 C-CER,CHIP 2203-006348 SA
C316 C-CER,CHIP 2203-006562 SA
C317 C-CER,CHIP 2203-006825 SA
C318 C-CER,CHIP 2203-005482 SA
C327 C-CER,CHIP 2203-002709 SA
C328 C-CER,CHIP 2203-005482 SA
C329 C-CER,CHIP 2203-000812 SA
C330 C-CER,CHIP 2203-006824 SA
C400 C-CER,CHIP 2203-000679 SA
C401 C-CER,CHIP 2203-002709 SA
C402 C-CER,CHIP 2203-000425 SA
C404 C-CER,CHIP 2203-000812 SA
C405 C-CER,CHIP 2203-002709 SA
C406 C-CER,CHIP 2203-000679 SA
C407 C-CER,CHIP 2203-005482 SA
C408 C-CER,CHIP 2203-005482 SA
C410 C-CER,CHIP 2203-006048 SA
C413 C-CER,CHIP 2203-001153 SA
C415 C-CER,CHIP 2203-000233 SA
C416 C-CER,CHIP 2203-005481 SA
C417 C-CER,CHIP 2203-005481 SA
C418 C-CER,CHIP 2203-005482 SA
C419 C-CER,CHIP 2203-006137 SA
C420 C-CER,CHIP 2203-006137 SA
C421 C-CER,CHIP 2203-006324 SA
C422 C-CER,CHIP 2203-006562 SA
C423 C-CER,CHIP 2203-006562 SA
C424 C-CER,CHIP 2203-006562 SA
C425 C-CER,CHIP 2203-000995 SA
C426 C-CER,CHIP 2203-000995 SA
C427 C-CER,CHIP 2203-006824 SA
C428 C-CER,CHIP 2203-006824 SA
C429 C-CER,CHIP 2203-006562 SA
C430 C-CER,CHIP 2203-006562 SA
C501 C-CER,CHIP 2203-000425 SA
C503 C-CER,CHIP 2203-000233 SA
C504 C-CER,CHIP 2203-006824 SA
C506 C-CER,CHIP 2203-001153 SA
C507 C-CER,CHIP 2203-001153 SA
C508 C-CER,CHIP 2203-001153 SA
C509 C-CER,CHIP 2203-000233 SA
C510 C-CER,CHIP 2203-005482 SA
C511 C-CER,CHIP 2203-005482 SA
C512 C-CER,CHIP 2203-005482 SA
C513 C-CER,CHIP 2203-006562 SA
C514 C-CER,CHIP 2203-006562 SA
C515 C-CER,CHIP 2203-005482 SA
C600 C-CER,CHIP 2203-000311 SA
C601 C-NETWORK 2503-001053 SA
C602 C-NETWORK 2503-001053 SA
C603 C-NETWORK 2503-001053 SA