Samsung C3212 Duos User manual

GSM TELEPHONE
GT-C3212
1. Safety Precautions
2. Specification
3. Product Function
4. Array course control
5. Exploded View and Parts list
6. MAIN Electrical Parts List
7. Disassembly and Assembly
Instructions
8. Block Diagrams
9. PCB Diagrams
10. Chart of Troubleshooting
11. Reference data
GSM TELEPHONE CONTENTS

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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
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. Product Function
3-1
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Main Function
-Simple bar type
-DUOS system (Dual Standby phone)
-VGA camera
-2.0inch QQVGA LCD
-SMS/EMS/MMS
-WAP 2.0 Full HTML Browser
-MP3/AAC/AAC+
-MPEG4/H.263
-EGSM/DCS GPRS Class 10, EDGE Rx Only
-Dual Band (EGSM900/DCS1800)
-MicroSD Card Support
-USB v2.0 High Speed, Bluetooth v2.1 +EDR
-FM Radio support
-Dictionary(English-Regional Language), Mobile Blog(Samsung)

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4. Array Course Control
4-1
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4-1. Software Adjustments
Test Jig (GH99-36900A)
RF Test Cable (GH39-00985A) Adapter (GH99-38251A)
Test Cable (GH39-01160A)

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Array Course Control
4-2
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4-2. Software Downloading
4-2-1. Pre-requsite for Download
•Downloader Program(OneNAND Downloader v0.7 for PNX6508(tfs4 v16&&2disk&&PNX4902
slave))
•GT-C3212 Mobile Phone
•USB to Serial cable
•Binary files
4-2-2. S/W Download Process
■Load the binary download program by executing the “OneNAND Downloader v0.7 for
PNX6508(tfs4 v16&&2disk&&PNX4902 slave)”
1. Execute the download SW, OneNAND Downloader v0.7 for PNX6508(tfs4
v16&&2disk&&PNX4902 slave)

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Array Course Control
4-3
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2. Select the Port, Baud Rate and Mode.

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Array Course Control
4-4
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3. Select the binary fileswhat you want to download