Samsung SGH-T629 User manual

GSM TELEPHONE
SGH-T629
GSM TELEPHONE CONTENTS
1. Safety Precautions
2. General Introduction
3. Specification
4. Product Funtion
5. Circuit Description
6. Test Command & Test Procedure
7. Array course control
8. Exploded View and its Parts list
9. MAIN Electrical Parts List
10. Flow Chart of Troubleshooting and
Circuit Diagrams
11. PCB Diagrams
12. Block Diagrams
13. Reference data

Samsung Electronics Co.,Ltd.
Code No.: GH68-12035A
2006. 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.

Contents
1. Safety Precautions
1-1. Repair Precaution ...........................................................................1-1
1-2. ESD(Electrostatically Sensitive Devices) Precaution ...........................1-2
2. General Introduction
3. Specification
3-1. GSM General Specification ..............................................................3-1
3-2. GSM TX Power class ......................................................................3-2
3-3. EDGE TX Poser Level .....................................................................3-3
4. Product Function
4-1. Main Function ................................................................................4-1
5. Circuit Description
6. TEST Command & Test Procedure
6-1. Calibration Equipment ....................................................................6-1
6-2. Calibration Program .......................................................................6-1
6-3. TX Power Tune up procedure .........................................................6-2
7. Array course control
7-1. Downloading Binary Files ................................................................7-2
7-2. Pre-requsite for Downloading ..........................................................7-2
7-3. S/W Downloader Program ...............................................................7-3
7-4. How to Download ..........................................................................7-5
8. Exploded View and its Parts list
8-1. Cellular phone Exploded View .........................................................8-1
8-2. Cellular phone parts list .................................................................8-2
8-3. Disassembly ..................................................................................8-4
8-4. Assembly ......................................................................................8-7

Contents
9. MAIM Electrical parts list
10. Flow Chart of Troubleshooting and Circuit Diagrams
10-1. Baseband
10-1-1. Power on ..............................................................................10-1
10-1-2. Initial ....................................................................................10-3
10-1-3. Sim Part ...............................................................................10-4
10-1-4. Charging Part ........................................................................10-5
10-1-5. Microphone Part .....................................................................10-7
10-1-6. Speaker Part .........................................................................10-9
10-1-7. Camera Part ........................................................................10-13
10-2. RF
10-2-1. GSM850/EGSM900 RX ..........................................................10-15
10-2-2. PCS RX ...............................................................................10-16
10-2-3. DCS RX ...............................................................................10-17
10-2-4. GSM850/EGSM900 TX ...........................................................10-18
10-2-5. DCS/PCS TX ........................................................................10-19
10-2-6. BLUETOOTH .........................................................................10-20
11. PCB Diagrams
12. Block Diagrams
12-1. RF Solution Block Diagram ..........................................................12-1
12-2. Base Band Solution Block Diagram ..............................................12-2
13. Reference data

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 specipicty 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 disassembing 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
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.

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2. General Introduction
This Document can not be used without Samsung's authorization
2-1
The SGH-T629 Quad Band phone functions as digital phone working in GSM
(Global System for Mobile communications)850,EGSM900, DCS1800 and
PCS(PersonalCommunication System)1900 modes.
<Specification>
●Dimension : 99 x 51 x 13.9 mm (with Standard Battery)
●Weight : 99g (with Standard Battery)
●LCD : LCD 262K TFT Color LCD (176 x 220) 2.1"
●R/F band : GSM850 / EGSM 900 / DCS1800 / PCS1900
●Vocoder :EFR+FR+HR+AMR
●Antenna : Fixed type
●SIM : 3 Voltage operation
●BLUETOOTH : VER 1.2
<GPRS/EGPRS Factor>
●MS Class : Class B
●GPRS Phase : GSM Phase II+
●Multi-slot : GPRS/EGPRS Class 10 (2 Up-link, 4 Down-link, 5 Sum)
●SMG : SMG #31
●Coding scheme : CS1 - CS4(GPRS), MCS5 - MCS9(EGPRS) support
●Power class : GSM850 - Class 4 (2W)
EGSM900 - Class 4 (2W)
DCS1800 - Class 1 (1W)
PCS1900 - Class 1 (1W)
●WAP 2.0 Browser
●SIM AT(Application Toolkit)
●40 Polyphonic Ringtone
<BasicPackage>
●Handset + Standard Battery + Ear Microphone + User Guide
<OptionItem>
●Travel Adapter
●Bluetooth Headset
●Bluetooth Hands Free Kit
●Car Charger/Adapter

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3. Specification
This Document can not be used without Samsung's authorization
3-1
3-1. GSM General Specification
GSM850 EGSM900 DCS1800 PCS1900
Freq. Band[MHz]
Uplink/Downlink
824~849
869~894
880~915
925~960
1710~1785
1805~1880
1850~1910
1930~1990
ARFCN range 128~251 0~124&
975~1023 512~885 512~810
Tx/Rx spacing 45 MHz 45 MHz 95 MHz 80 MHz
Mod. Bit
rate/
Bit Period
GPRS 270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
270.833 Kbps
3.692 us
EDGE 812.5 Kbps
3.692 us
812.5 Kbps
3.692 us
812.5 Kbps
3.692 us
812.5 Kbps
3.692 us
Time Slot
Period/Frame Period
576.9 us
4.615 ms
576.9 us
4.615 ms
576.9 us
4.615 ms
576.9 us
4.615 ms
Modulation
GPRS 0.3 GMSK 0.3 GMSK 0.3 GMSK 0.3 GMSK
EDGE 8PSK 8PSK 8PSK 8PSK
MS Power
GPRS 33 dBm~5 dBm 33 dBm~5 dBm 30 dBm~0 dBm 30 dBm~0 dBm
EDGE 27~5 dBm 27~5 dBm 26~0 dBm 26~0 dBm
Power Level
GPRS 5~19(class4) 5~19(class4) 0~15(class1) 0~15(class1)
EDGE 8~19(class E2) 8~19(class E2) 2~15(class E2) 2~15(class E2)
Sensitivity -102 dBm -102 dBm -100 dBm -102 dBm
TDMA Mux 8 8 8 8
Cell Radius 35 Km 35 Km 2 Km 2 Km

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Specification
3-2
This Document can not be used without Samsung's authorization
3-2. GSM TX power class
TX
Power
control
level
GSM850
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±2 dBm
17 9±2 dBm
18 7±2 dBm
19 5±2 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±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TX
Power
control
level
PCS1900
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4 dBm
11 8±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TX
Power
control
level
EGSM900
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±2 dBm
17 9±2 dBm
18 7±2 dBm
19 5±2 dBm

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Specification
3-3
This Document can not be used without Samsung's authorization
3-3. EDGE TX Power Level
TX
Power
control
level
GSM850
8 27±3 dBm
9 25±3 dBm
10 23±3 dBm
11 21±3 dBm
12 19±3 dBm
13 17±3 dBm
14 15±3 dBm
15 13±3 dBm
16 11±5 dBm
17 9±5 dBm
18 7±5 dBm
19 5±5 dBm
TX
Power
control
level
DCS1800
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4 dBm
11 8±4 dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TX
Power
control
level
PCS1900
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
15 0±5 dBm
TX
Power
control
level
EGSM900
8 27±3 dBm
9 25±3 dBm
10 23±3 dBm
11 21±3 dBm
12 19±3 dBm
13 17±3 dBm
14 15±3 dBm
15 13±3 dBm
16 11±5 dBm
17 9±5 dBm
18 7±5 dBm
19 5±5 dBm