Samsung GT-E1225F User manual

GSM TELEPHONE
GT-E1225F(E1225T Common)
GSM TELEPHONE CONTENTS
1. Safety Precautions
2. Specification
3. Product Function
4. Exploded View and Parts list
5. MAIN Electrical Parts List
6. Level 1Repair
7. Level 2Repair
8. Level 3Repair
9. Reference data
Notice
All functionality, features, specifications and o
ther product information provided in this docu
ment including, but not limited to, the benefit
s, design, pricing, components, performance,
availability, and capabiliti-es of the product
are subject to change without notice or oblig
ation. Samsung reserves the right to make
changes to this document and the product
described herein, at anytime, without
obligation on Samsung to provide notification
of such change.

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1. Safety Precautions
1-1
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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 akind of magnetic object or tool, because performance of parts is damaged by
the influence of magnetic force.
―Surely use astandard screwdriver when you disassemble this product, otherwise screw will be
worn away.
―Use athicken twisted wire when you measure level.
Athicken 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 arepair 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.

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Safety Precautions
1-2
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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 acircuit board.

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2. Specification
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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

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Specification
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2-2
TX Power
control level GSM900
533±2
dBm
631±2
dBm
729±2
dBm
827±2
dBm
925±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±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

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3. Operation Instruction and Installation
3-1
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Main Function
•Dual SIM socket (900/1800) - [not dual standby]
•PNX4850
•1.77"
TFT QVGA LCD
•SMS
•SOS Message, Whisper Mode, Fake Call
•40
Polyphonic Melody
•FM Radio,
•LED Torchlight
•3.5
ΦEarjack

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4. Exploded View and Parts List
4-1
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4-1. Cellular phone Exploded View

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Exploded View and Parts List
4-2
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Design LOC Discription SEC CODE
QSP01 SPEAKER 3001-002543
QAR01 AUDIO-RECEIVER 3009-001491
QCR89 SCREW-TAPPING 6002-001428
QMI01 MICROPHONE-ASSY-GT_E1225F GH30-00674A
QMO01 MOTOR DC-SCH-S369 GH31-00392A
QBA01 INNER BATTERY PACK-800MAH,BLK,UNI,MAIN GH43-03241A
QMP01 A/S ASSY-PBA MAIN(TURK) GT-E1225F GH82-05161A
QLC01 ASSY LCD-1.77 QQVGA SCH-B559 ASSY GH96-04327A
QFR01 ASSY CASE-FRONT GH98-16860A
QBC00 ASSY COVER-BATTERY GH98-16862A
QKP01 ASSY KEYPAD-MAIN GH98-16863A
QRE01 ASSY CASE-REAR GH98-16861A
QIF01 PMO COVER-IF V2 GH72-60638A
4-2. Cellular phone Parts list

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5. MAIN Electrical Parts List
5-1
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SEC CODE Design LOC Description
0403-001688 ZD200 DIODE-ZENER
0406-001231 ZD100 DIODE-TVS
0406-001231 ZD302 DIODE-TVS
0406-001231 ZD400 DIODE-TVS
0406-001231 ZD401 DIODE-TVS
0406-001231 ZD402 DIODE-TVS
0406-001231 ZD403 DIODE-TVS
0406-001231 ZD404 DIODE-TVS
0406-001231 ZD405 DIODE-TVS
0406-001267 ZD300 DIODE-TVS
0406-001286 ZD303 DIODE-TVS
0406-001286 ZD406 DIODE-TVS
0406-001361 ZD301 DIODE-TVS
0407-001002 D200 DIODE-ARRAY
0505-002664 TR200 FET
0601-002846 LED300 LED
0601-002846 LED301LED
0601-002846 LED302LED
0601-002846 LED303LED
0601-002941 LED304LED
1001-001610 U101 IC
1001-001635 U400 IC
1001-001664 U200 IC
1003-001440 TR100 IC
1108-000217 UME200 MEMORY
1201-002933 PAM100 PAM
1201-002944 U100 IC
1202-001068 U401 IC
1203-005512 U300 IC
1203-005686 U103 IC
1204-003155 U104 IC
1205-003923 UCP200 IC
1404-001221 TH200 THERMISTOR
2007-000138 R103 R-CHIP
2007-000138 R213 R-CHIP
2007-000138 R400 R-CHIP

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Main Electrical Parts List
5-2
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SEC CODE Design LOC Description
2007-000138 R404 R-CHIP
2007-000139 R301 R-CHIP
2007-000140 R102 R-CHIP
2007-000140 R310 R-CHIP
2007-000140 R311 R-CHIP
2007-000140 R312 R-CHIP
2007-000140 R313 R-CHIP
2007-000141 R300 R-CHIP
2007-000141 R305 R-CHIP
2007-000141 R401 R-CHIP
2007-000141 R402 R-CHIP
2007-000143 R100 R-CHIP
2007-000143 R107 R-CHIP
2007-000143 R108 R-CHIP
2007-000148 R200 R-CHIP
2007-000148 R201 R-CHIP
2007-000151 R117 R-CHIP
2007-000151 R209 R-CHIP
2007-000151 R212 R-CHIP
2007-000162 R110 R-CHIP
2007-000163 R407 R-CHIP
2007-000164 R408 R-CHIP
2007-000170 R403 R-CHIP
2007-000172 R302 R-CHIP
2007-000172 R306 R-CHIP
2007-000172 R307 R-CHIP
2007-000172 R314 R-CHIP
2007-000173 R308 R-CHIP
2007-000173 R309 R-CHIP
2007-001119 R106 R-CHIP
2007-001288 R112 R-CHIP
2007-001298 R303 R-CHIP
2007-001298 R304 R-CHIP
2007-001311 R101 R-CHIP
2007-001333 R104 R-CHIP
2007-001333 R105 R-CHIP

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Main Electrical Parts List
5-3
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SEC CODE Design LOC Description
2007-002970 R111 R-CHIP
2007-003025 R109 R-CHIP
2007-007008 R113 R-CHIP
2007-007008 R114 R-CHIP
2007-007698 R204 R-CHIP
2007-010071 R203 R-CHIP
2203-000359 C317 C-CERAMIC
2203-000386 C400 C-CERAMIC
2203-000386 C403 C-CERAMIC
2203-000386 C408 C-CERAMIC
2203-000425 C224 C-CERAMIC
2203-000425 C229 C-CERAMIC
2203-000679 C302 C-CERAMIC
2203-000725 C316 C-CERAMIC
2203-000812 C120 C-CERAMIC
2203-000812 C122 C-CERAMIC
2203-000812 C126 C-CERAMIC
2203-000812 C127 C-CERAMIC
2203-000812 C227 C-CERAMIC
2203-000812 C406 C-CERAMIC
2203-000812 C407 C-CERAMIC
2203-000940 C412 C-CERAMIC
2203-000940 C413 C-CERAMIC
2203-000995 C114 C-CERAMIC
2203-001072 C129 C-CERAMIC
2203-001072 C404 C-CERAMIC
2203-001153 C219 C-CERAMIC
2203-002443 C105 C-CERAMIC
2203-002443 C106 C-CERAMIC
2203-002443 C109 C-CERAMIC
2203-002443 C309 C-CERAMIC
2203-002443 C310 C-CERAMIC
2203-002443 C311 C-CERAMIC
2203-002443 C415 C-CERAMIC
2203-002525 C411 C-CERAMIC
2203-002525 C417 C-CERAMIC

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Main Electrical Parts List
5-4
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SEC CODE Design LOC Description
2203-002677 C131 C-CERAMIC
2203-002709 C112 C-CERAMIC
2203-002709 C213 C-CERAMIC
2203-002709 C214 C-CERAMIC
2203-005053 C113 C-CERAMIC
2203-005057 C132 C-CERAMIC
2203-005234 C130 C-CERAMIC
2203-005281 C117 C-CERAMIC
2203-005281 C121 C-CERAMIC
2203-005281 C123 C-CERAMIC
2203-005281 C124 C-CERAMIC
2203-005344 C223 C-CERAMIC
2203-005481 C101 C-CERAMIC
2203-005481 C104 C-CERAMIC
2203-006048 C118 C-CERAMIC
2203-006048 C203 C-CERAMIC
2203-006048 C204 C-CERAMIC
2203-006048 C205 C-CERAMIC
2203-006048 C228 C-CERAMIC
2203-006048 C230 C-CERAMIC
2203-006048 C234 C-CERAMIC
2203-006048 C301 C-CERAMIC
2203-006048 C303 C-CERAMIC
2203-006048 C402 C-CERAMIC
2203-006048 C405 C-CERAMIC
2203-006048 C418 C-CERAMIC
2203-006048 C419 C-CERAMIC
2203-006137 C111 C-CERAMIC
2203-006208 C207 C-CERAMIC
2203-006208 C208 C-CERAMIC
2203-006399 C202 C-CERAMIC
2203-006399 C206 C-CERAMIC
2203-006399 C209 C-CERAMIC
2203-006399 C210 C-CERAMIC
2203-006399 C211 C-CERAMIC
2203-006399 C212 C-CERAMIC

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Main Electrical Parts List
5-5
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SEC CODE Design LOC Description
2203-006399 C233 C-CERAMIC
2203-006399 C307 C-CERAMIC
2203-006399 C308 C-CERAMIC
2203-006562 C125 C-CERAMIC
2203-006562 C231 C-CERAMIC
2203-006562 C312 C-CERAMIC
2203-006562 C313 C-CERAMIC
2203-006562 C410 C-CERAMIC
2203-006626 C102 C-CERAMIC
2203-006626 C103 C-CERAMIC
2203-006824 C200 C-CERAMIC
2203-006824 C201 C-CERAMIC
2203-006824 C226 C-CERAMIC
2203-007240 TA400 C-CERAMIC
2203-007279 C119 C-CERAMIC
2203-007279 TA300 C-CERAMIC
2203-007425 C222 C-CERAMIC
2703-000213 L101 INDUCTOR
2703-002170 L111 INDUCTOR
2703-002200 L406 INDUCTOR
2703-002200 L407 INDUCTOR
2703-002204 L112 INDUCTOR
2703-002208 L109 INDUCTOR
2703-002208 L110 INDUCTOR
2703-002313 L402 INDUCTOR
2703-002313 L404 INDUCTOR
2703-002367 L106 INDUCTOR
2703-003064 L103 INDUCTOR
2703-003184 L201 INDUCTOR
2703-003476 L300 INDUCTOR
2703-003476 L411 INDUCTOR
2801-003856 OSC201 CRYSTAL
2801-004805 OSC200 CRYSTAL
2904-001879 F100 FILTER
3301-001158 L200 BEAD
3301-001729 L400 BEAD

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Main Electrical Parts List
5-6
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SEC CODE Design LOC Description
3301-001729 L401 BEAD
3301-001729 L403 BEAD
3301-001729 L405 BEAD
3301-001885 L301 BEAD
3301-001885 L302BEAD
3301-001885 L303BEAD
3301-001885 L304BEAD
3301-001885 L305 BEAD
3301-001885 L408 BEAD
3301-001885 L409 BEAD
3301-001885 L410 BEAD
3301-001970 L102 BEAD
3404-001152 TAC300 SWITCH-TACT
3705-001731 RFS100 CONNECTOR-COAXIAL
3709-001488 SIM200 CONNECTOR-CARD
3709-001488 SIM201 CONNECTOR-CARD
3710-002683 IFC300 SOCKET-INTERFACE
3711-007437 BTC200 HEADER-BATTERY
3722-003101 EAR400 JACK-EARPHONE
GH70-03951A SC100SHIELD CAN CLIP
GH70-03951A SC101SHIELD CAN CLIP
GH70-03951A SC102SHIELD CAN CLIP
GH70-03951A SC104SHIELD CAN CLIP
GH70-03951A SC105SHIELD CAN CLIP
GH70-03951A SC106SHIELD CAN CLIP
GH70-03951A SC107SHIELD CAN CLIP
GH70-03951A SC109SHIELD CAN CLIP
Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list.

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6. Level 1Repair
6-1
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6-1. S/W Download
6-1-1. Pre-requsite for S/W Downloading
-Diagram of connection
6-2-2. How to download S/W
1) Download the drivers from anysvc, and then install the drivers. If your pc already has the
drivers, you can skip this step.
-SAMSUNG Mobile USB DRIVER(4.40.7.0) v1.6.zip
-msxml.msi
-SSDN_V1.1.808.7165_SETUP_whql.exe
2) Download the files from anysvc.
-The latest s/w download program of GT-E1225F
-The latest s/w binary files of GT-E1225F
3) Unpack .zip file in their folder. (To save binary file in each folder is recommended.)
4) Run the s/w download program(execution file).
-LesediFM_MEA_Downloader

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Level 1Repair
6-2
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5) Setting the download program
①Select the connected serial port and the rate of speed.
-Click the boxes of file info section.
-Select correct binary files.
②Select Mode.
-"
AutoDownloader" :
Check the box If you don't have to do NOR, TFS Operation.
You can download without click 'DOWNLOAD' button
-"
Power-ON after download"
Check the box If you want to turn on the phone automatically after download.
-BIN: Binary download Only
TFS: TFS download Only
BIN+TFS: Both download
③Select the correct binary and TFS file
①
②
③
②
②

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Level 1Repair
6-3
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6) Click the 'START' button and connect Phone with PC
①Connect Phone though IF Cable.
②Port will be readied and 'Download' will be activated.
7) Click the 'Download', and then download is progressed automatically.
8) If the download is completed rightly, it shows the content, 'Download complete!'.
※Caution. Never disconnect during the S/W downloading.

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7. Level 2Repair
7-1
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7-1. Disassembly and Assembly Instructions
7-1-1. Disassembly
1) Be careful not to make scratch and molding damage!
2) Torque : 1.1 ~ 1.3 Kgf·cm
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage IF COVER
1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!
Unscrew 2points at the REAR case DIsassemble the REAR as below sequence

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Level 2Repair
7-2
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1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!
1) Be careful not to make scratch and molding damage!
2) Be careful speaker contact pin damage!
1) Be careful not to make scratch and molding damage!
2) Be careful motor contact pin damage!
Disassemble the SHIELD CAN Separate the KEYPAD from the FRONT
Separate the MOTOR from the REAR.
Separate the SPEAKER from the REAR.

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Level 2Repair
7-3
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7-1-2 Assembly
1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!
1) Be careful not to make scratch and molding damage!
2) When insert MOTOR, use PUSHING JIG.
3) CHECK SPEAKER, MOTOR insert tightly.
1) Be careful not to make scratch and molding damage!
2) Be careful nothing goes between LCD and FRONT.
Assemble the SHIELD CAN
INSERT PBA TO FRONT. INSERT MIC TO FRONT.
INSERT SPEAKER, MOTOR to REAR.
INSERT KEYPAD to FRONT.