Ares DB2051P User manual

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DB-2051PService Manual
2004/12/17Page1 of 90
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ServiceManual Level1~3
COPYRIGHT, ARESINC, THISNOTICEDOES NOTIMPLY
PUBLICATION."ARESCONFIDENTIALPROPRIETARY."THISDRAWING
ON THISPRINTAND INFORMATIONTHEREWITHARE
PROPRIETARYTO ARESINC., AND SHALL NOTBEUSED ORDISCUSSED
INWHOLEOR IN PARTWITHOUTARES'SCONSENT."

AresCommunicationsTechnology.,INC.2051PServicemanual 1~3V3.0- .doc
DB-2051PService Manual
2004/12/17Page2 of 90
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Record
Thefirst edition
Update-- 5.8 SoftwareUpgrade(P62)

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2004/12/17Page3 of 90
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Contents
1. Introduction4
1.1 BriefIntroduction 4
1.2 ReminderoftheSafety4
2. Brief Industroduction to DB2051P5
2.1 AppearanceoftheDB2051P5
2.2 Specification List6
2.3 Electrical Specification List7
3. Functions List8
3.1 List oftheFunctions Available 8
4. Disassembly &Assembly 14
4.1 BriefIntroduction toDisassemblyand Assembly14
4.2 RecommendedTool14
4.3 DisassemblyProcedures15
4.4 Exploded Parts Diagram18
4.5 PartsList forEach Portion 19
4.6 AssemblyProcedures20
5. Repair&Test23
5.1 BasicKnowledgeoftheMobilePhoneRepair23
5.2 BriefIntroduction toDB2048 Repair26
5.3 DB2051PMechanismRepair27
5.4 ManualTest Instructions 27
5.5 BasisModuleTroubleShooting 28
5.6 SimpleRepairFlow 57
5.7 FunctionTest andVerification aftertheMobilePhoneIs Repaired61
5.8 SoftwareUpdate 62
5.9 FunctionTest andVerification 89

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1. Introduction
1.1 BriefIntroduction
1.2 Reminderof theSafety
1.2.1 ForPortableMobilePhone
l
l
1.2.2 ForCar-UseMobilePhone
l
l
1.2.3 ForGeneralUse
l
l
l
l
l
l

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2. Introduction toDB-2051P
2. BriefIntroduction toDB-2051P
2.1 Appearance ofthe DB2051P
Item Name of the Part Remarks
1 Dustguardcover
2 Batterycover hook
3 Front housing of thephone
4 Batterycover
5 Rear housingof thephone
6 Directionkey
7 Function key
8 power/clear key
9 Numerickey
10 Lens
11 LCD
12 Call key
13 Concealedantenna
14 Straphole
1
2
3
7
9
8
5
4
6
10
1
11
12
13
14

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2.2 SpecificationList of theDB-2051P
Item Reference Requirements
Dimension mm 99X43.5X19.5
Weight 90g±10%, with astandard battery
Plasticmaterial ABS+PC
Powersupply 3.7V(normal), 3.3V(min.)
3.7V(normal), 600mAH(min.)
Standardbattery
Batteryvoltage
5V(normal),AC/DCadaptor
Transmission power GSM900 Max 2W(Class 4)
DCS1800 Max 1W(Class 1)
Talking timefora
standard battery >144Min*1
Standbytime fora
standard battery 129hr
Charging time(Ultra
battery)
Around 2.5 hrs. to getafull power
Phonebook 50groups ofphonebookbuiltin thephone
600 groups ofphonebook embeddedin the
SIM card*2
Vibrator Vibration whileacall is received
LCD 101 x 80DOTS256 COLORSICRB-213Z
36.5MM
Keypad 12 numerickeys, 2 function keys, 2 direction
key, 1 power/clearkey
Backlighting Backlighting control (auto/usercontrolled)
External interface Batterybase
SIM card base
Outlet forhands-freespeakerphone
Charginginterface
Clock Embedded
Charging control DCcharging controllerembedded
Operating temperature -10°Cto+55°C -10°Cto+55°C
Temperaturerange
allowable
-40°Cto+85°C
Humidityrange
allowable
0 to 90%
1 dependent onthenetwork inthatarea. 2dependent onthesystemprovider

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2.3 Electrical SpecificationList
Item Reference Requirements
l
GSM900
GSM900
DCS1800
DCS1800
880–915MHz
925–960MHz
1710-1785MHz
1805-1880MHz
Sameas theleftitem
l
GSM900
DCS1800
124channels
374channels Sameas theleftitem
l
1channels 8TimeSlots
TDMA Sameas theleftitem
l200KHz
lGMSK,BT=0.3
l270.833kb/s
lFR–13kbps
EFR–13kbps
l
GSMPhase2
± 0.1ppm ±0.1ppm
l
5° RMS
20° PEAK
5° RMS
20° PEAK
l
GSM900
DCS1800
+33dBm ± 20dB(Class 4)
+30dBm ± 20dB(Class 1)
+32dBm±0.6dB
+29 dBm± 0.6dB(at RF interface)
l
GSM900
DCS1800
15 levelsin2dBsteps
16 levelsin2dBsteps
lRF Sensitivity
EGSM900
DCS1800
-102dBm
-102dBm
Except static condition
-105dBm(Static,Conducted)
-103dBm(Static,Conducted)
l94dB(A)at10cm(maxLevel)

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3. Menu
3.1Available Menu

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3.1.1 Messages
Voice MailC
Off
DirectReplyOn
Off
Voice Mail
Cell Broadcast On
Off
Read new CB
TopicList NewTopic
AutoDisplayOn
Off
Capacity
3.1.2Records
Recent Calls
Clear LogsOutgoingCall
Imconing Call
Missed Call
ClearAll
CallRegister CallTimer
CallCost
CallBalance

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3.1.3 Ringer
Volume
Type AnyCall
Phonebook Calls
Family
GroupCalls Friend
AlarmWorkmate
MessageVIP
Cell Broadcast
CallAlertVibratorOnly
Ringer Only
Vibrator & Ringer
VibratorThen Ringer
NoRinger &Vibrator
Beep Only
3.1.4Clock
Alarm ClockOnOnce
EveryDay
WorkingDay
Off
SettingTime& Date
DisplayModeDateOnly
TimeOnly12hours
24 hours
Date& Time12 hours
24hours
NoDisplay
AutoPower OffOnOnce
Everyday
Off

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3.1.5 Settings
KeyTonesCLick
Tone
Off
Key LockAutoKey LockOn
Off
Keypad LockNow
AnykeyAnswerOn
Off
AutoAnswerOn
Off
ConnectionAlertTones
Vibrator
Tones & Vibrator
IPnumber setting
Restore
CallSettingOwnNo.SendOn
Off
Divert
UnconditionalActivate
Cancel
Status
UnansweredActivate
Cancel
Status
When BusyActivate
Cancel
Status

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NoReplyActivate
Cancel
Status
NoResponseActivate
Cancel
Status
CleraAll
AllOutgoing Activate
Cancel
Status
OutgoInternationalActivate
Cancel
Status
BarringsOutgoInternational ExceptHomeActivate
Cancel
Status
AllIncomingActivate
Cancel
Status
AllIncomingWhen RoamingActivate
Cancel
Status
ClearAll
WaitingActivate
Cancel
Status
MinuteBeep On
Off
Auto RedialOn
Off
NetworkSearchModeAutoSearch
Manual Search
SecurityPINControlOn
Off
ChangePIN
ChangePIN2
Fixed Dial Control On
Off
TimeCostCallingDisplay On
Off
Charge RateRate
Currency
CallsLimit

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3.1.6Misc.
Calculator
Blackjack
GamesGobang
Redcap
Tank War
Settings
SoundsOn
Off
Backlight On
CalendarOnOff
OffVibratorOn
Off
Screen SaverOnBear
Night
Sun& Moon
DigitalClock
Off
3.1.7Phone book
View SearchName
Group
Family
Friend
Workmate
VIP
AddNew
CopyRecordsSIMToHandset
HandsetToSIM
Deleteall SIMAll
PhoneAll
FixedDialListViewList
Add New
SpeedDial
Phone Status
OwnNumbers
8SIM card additionalservice STK

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4. Disassembly&Assembly
4.1BriefIntroduction to Disassemblyand Assembly
EspeciallycarefullydisassembleorassemblytheLCDon theboard of
DB-2051Pduetoit is apreciseelement easilydamaged.
Determineto wearananti-staticwristband fullygrounded becausemany
partsin themobilephoneareeasilydamaged fromelectrostaticeffect.
No stress on thehousings ofthemobilephoneprevents thehousings and
internal partsfrombeingdamaged.
4.2RecommendedTool
Pleaseusethefollowing tools todisassembleandassemblethe2051P:
uAnti-statictools set, including:
nAnti-staticmat
nGround Cord
nWrist Band
nPlasticBladedTool
nT5starlikescrewdriver
nTweezers

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4.3DisassemblyProcedures
Once themobilephonehas not beendisassembled but askedto berepaired, it should be
takenapart. Thefollowing steps willguideyou todisassemblethe2051P.
1. Openthebatterycover.
3. Removethescrewsby a T5 starlike
screwdriver.
5. Take theboardandreal housingapart.
4. Takeapartthefrontandrear
Housings
2. Takeout thebattery.
6.Taketheantenna outoftheboard.

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10. TaketheVibratoroutoftherear
housing.
9. Take outthekeypad.
7. Take outtheLCDpanel. 8. Removethereceiverand theLCD
Plate.
11. Take the Microphoneout ofthe
rear
housing.

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Points forAttention:
1. Clean theworking site(s), checkoutthetools andmaterials,andplacetheparts
and tools in order.
2. Do not makethefront/rearhousings and LCD Lens panel scrapedat thecaseof
disassemblyofthehousings.
3. Hooks areprovidedatthefront and rearhousings;takecareofthehook sitesat
thecaseofdissembly. Do not put forth yourstrength on them,orotherwisethe
hooksofthefront and rearhousings will becracked.
4. Be carefulofthehook sitesat theupperedgeofrearhousing atthetimeof
separationoftheboard and rearhousing. Do not put forth yourstrength on them,
orotherwisethehooksofthefront and rearhousings will becracked.

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4.4 ExplodedParts Diagram

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4.5 Replacement Parts
NO. PARTNAME Q’ty
1 RING 1
2 LCD LENS 1
3 LCDLENSTAPE 1
4 FRONTHOUSING 1
5 LCD SPONGE 1
6 LCDHOLDER 1
7 SCREWNUT 4
8 KEYPAD 1
9 LCDPLATE SPONGE 1
10 INSULATING TAPE 1
11 METALDOME 1
12 LCD 1
13 LCM TAPE 1
14 RECEIVER&SPEAKER
1
15 LCD PLATE 1
16 ANTENNAINTERNAL 1
17 VIBRATORMOTOR 1
18 INSULATED PLATE 1
19 MICROPHONE 1
20 REARHOUING 1
21 INSERT 1
22 BATTERY 1
23 SCREW 4
24 BATTERYCOVER 1
25 LOGO PLATE 1
26 INSULATINGTAPETWO1
27 INSULATINGTAPETHREE 1
28 INSULATINGTAPEONE 1
29 COPPER TAPE1 1
30 COPPER TAPE1 1

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4.6 Assembly Procedure
2. Assembleback thereceivertothesite,
asshown inthefigureabove.
1. Assembleback thekeypad.
3. LoadtheLCDplate. 4. Certainlyassembleback theantenna
hook on theboard.
Hook theLCD hook onto theboard. 6.