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Ares Communications Technology . , INC

2051P Service manual 1~3 V3.0- .doc

DB-2051P Service Manual

2004/12/17 Page 31 of 90

Confidential Document

SYMPTOM 4

Call ring is abnormal (irregularly)

Check whether Buzzer

holder is covered.

Re-assemble

the phone.

For the phone able to

be switched on and set

to a call ring mode

Check whether the signal

of the ring working is set to

T7_2.

Check whether the circuits
related to IC7 and FLASH
are well soldered or whether
the software is in good
condition. Also, re-solder or
replace the relevant part(s)
in worst case, or
re-download S/W.

Check whether Buzzer, D5,

and T7 are well soldered or

in good condition.

Re-solder or replace the

related part(s).

END

Содержание DB2051P

Страница 1: ...Page 1 of 90 Confidential Document Service Manual Level1 3 COPYRIGHT ARES INC THIS NOTICE DOES NOT IMPLY PUBLICATION ARES CONFIDENTIAL PROPRIETARY THIS DRAWING ON THIS PRINT AND INFORMATION THEREWITH...

Страница 2: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 2 of 90 Confidential Document Record The first edition Update 5 8 Software Upgrade P62...

Страница 3: ...le 8 4 Disassembly Assembly 14 4 1 Brief Introduction to Disassembly and Assembly 14 4 2 Recommended Tool 14 4 3 Disassembly Procedures 15 4 4 Exploded Parts Diagram 18 4 5 Parts List for Each Portion...

Страница 4: ...l 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 4 of 90 Confidential Document 1 Introduction 1 1 Brief Introduction 1 2 Reminder of the Safety 1 2 1 For Portable Mobile Phone l l 1 2 2 For Car...

Страница 5: ...2 Brief Introduction to DB 2051P 2 1 Appearance of the DB2051P Item Name of the Part Remarks 1 Dust guard cover 2 Battery cover hook 3 Front housing of the phone 4 Battery cover 5 Rear housing of the...

Страница 6: ...129hr Charging time Ultra battery Around 2 5 hrs to get a full power Phone book 50 groups of phone book built in the phone 600 groups of phone book embedded in the SIM card 2 Vibrator Vibration while...

Страница 7: ...24 channels 374 channels Same as the left item l 1 channels 8 Time Slots TDMA Same as the left item l 200KHz l GMSK BT 0 3 l 270 833kb s l FR 13kbps EFR 13kbps l GSM Phase 2 0 1ppm 0 1ppm l 5 RMS 20 P...

Страница 8: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 8 of 90 Confidential Document 3 Menu 3 1 Available Menu...

Страница 9: ...of 90 Confidential Document 3 1 1 Messages Voice Mail C Off Direct Reply On Off Voice Mail Cell Broadcast On Off Read new CB Topic List New Topic Auto Display On Off Capacity 3 1 2 Records Recent Call...

Страница 10: ...ok Calls Family Group Calls Friend Alarm Workmate Message VIP Cell Broadcast Call Alert Vibrator Only Ringer Only Vibrator Ringer Vibrator Then Ringer No Ringer Vibrator Beep Only 3 1 4 Clock Alarm Cl...

Страница 11: ...1 5 Settings Key Tones CLick Tone Off Key Lock Auto Key Lock On Off Keypad Lock Now Anykey Answer On Off Auto Answer On Off Connection Alert Tones Vibrator Tones Vibrator IP number setting Restore Ca...

Страница 12: ...International Activate Cancel Status Barrings Outgo International Except Home Activate Cancel Status All Incoming Activate Cancel Status All Incoming When Roaming Activate Cancel Status Clear All Wait...

Страница 13: ...cap Tank War Settings Sounds On Off Backlight On Calendar On Off Off Vibrator On Off Screen Saver On Bear Night Sun Moon Digital Clock Off 3 1 7 Phone book View Search Name Group Family Friend Workmat...

Страница 14: ...precise element easily damaged Determine to wear an anti static wristband fully grounded because many parts in the mobile phone are easily damaged from electrostatic effect No stress on the housings o...

Страница 15: ...ce the mobile phone has not been disassembled but asked to be repaired it should be taken apart The following steps will guide you to disassemble the 2051P 1 Open the battery cover 3 Remove the screws...

Страница 16: ...V3 0 doc DB 2051P Service Manual 2004 12 17 Page 16 of 90 Confidential Document 10 Take the Vibrator out of the rear housing 9 Take out the keypad 7 Take out the LCD panel 8 Remove the receiver and t...

Страница 17: ...Lens panel scraped at the case of disassembly of the housings 3 Hooks are provided at the front and rear housings take care of the hook sites at the case of dissembly Do not put forth your strength o...

Страница 18: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 18 of 90 Confidential Document 4 4 Exploded Parts Diagram...

Страница 19: ...ONGE 1 6 LCD HOLDER 1 7 SCREW NUT 4 8 KEYPAD 1 9 LCD PLATE SPONGE 1 10 INSULATING TAPE 1 11 METAL DOME 1 12 LCD 1 13 LCM TAPE 1 14 RECEIVER SPEAKER 1 15 LCD PLATE 1 16 ANTENNA INTERNAL 1 17 VIBRATOR M...

Страница 20: ...Manual 2004 12 17 Page 20 of 90 Confidential Document 4 6 Assembly Procedure 2 Assemble back the receiver to the site as shown in the figure above 1 Assemble back the keypad 3 Load the LCD plate 4 Cer...

Страница 21: ...housing and wedge the hook of the rear housing 11 Use a T5 starlike to spin the fixing screw in and to fix the board between the front and rear housings 12 8 Assemble the MICROPHONE in the rear housin...

Страница 22: ...t the front and rear housings take care of the hook sites at the case of dissembly Do not put forth your strength on them or otherwise the hooks of the front and rear housings will be cracked 4 At the...

Страница 23: ...se by improper use It is generally caused by the user s improper operation or wrong adjustment Several cases are frequently caused as fallows 1 Mechanical damage the phone s part s cracked and or dist...

Страница 24: ...malfunctioning mobile phone according to the following process 1 To find out the cause before repair First of all ask the user when the phone failed which fault phenomenon occurred and which irregular...

Страница 25: ...ion 8 Check whether the audio frequency signal I O interfaces SIM card ring keypad display panel microphone receiver vibrator and the like work normally 9 Disassemble the phone in order Refer to chapt...

Страница 26: ...CD holder LCD plate Microphone Receiver vibrator keypad b Simple manual test instructions Check whether the software version vibrator LCD module buzzer microphone and headphones work normally using th...

Страница 27: ...eries of instructions Manual Test Mode Step 1 Input a 80 instruction by way of a keypad When the mobile phone shows a message telling Test Mode ON it means that the phone has entered Test Mode and the...

Страница 28: ...regulator of IC6 is correct See the power supply circuit Check IC6 and the related circuit and re solder or replace the relevant part s in worst case N It is allowed to measure TP26 by an oscilloscop...

Страница 29: ...e download the phone software N Y Y Y After switch on check whether the phone stays at a vibration mode Check whether the voltage of T1_2 is high Check re solder IC7 R40 and R16 or replace the relevan...

Страница 30: ...For the phone able to be switched on Locate the LCM module or check whether LCM Zebra is in good condition for better solution N Measure whether the voltage of TP32 is around 2 65V 1 Check whether the...

Страница 31: ...For the phone able to be switched on and set to a call ring mode Check whether the signal of the ring working is set to T7_2 Check whether the circuits related to IC7 and FLASH are well soldered or w...

Страница 32: ...The voice from the other side is not clear In the condition of call Check whether a signal is sent to SP1_2 from IC7 Check C88 C85 C86 TG26 and TG25 are not well soldered Re solder or replace the rel...

Страница 33: ...side cannot clearly hear the voice During a call Check whether a signal is sent to the terminals of C79 from IC7 Check whether C79 C80 A C80 B C82 C84 A C84 B and R45 are not well soldered Re solder...

Страница 34: ...YMPTOM 7 After the phone is switched on the keys get failure At the state of switch on Check Keypad and Metal Doom are well connected to PCB Re stick the Keypad Metal Doom or replace it in worst case...

Страница 35: ...age trigger signal in T8_2 is sent from IC7 Check whether IC7 and R44 are not well soldered if any then re solder or replace the relevant part s in worst case Check whether T8 is driven Check whether...

Страница 36: ...rating voltage of J4_1 and J4_5 is 2 85V Check whether the output voltage of IC6_21 is 2 85V if not replace IC 6 if yes check whether C89 is in worst case or not well soldered Check whether IC7 has a...

Страница 37: ...8kHz Check whether C17 is not well soldered or whether the part is damaged Check whether C78 C81 and XTAL1 are not well soldered if any re solder or replace the relevant part s Check whether the phone...

Страница 38: ...er is normal Measure to check whether the charge voltage of TP30 is approximately 5V Check whether J5 is not well soldered if any re solder or replace the relevant part Measure to check whether the ch...

Страница 39: ...below Points for Attention 1 At the time of RF testing an Inline mode in DBService is generally selected and a channel ARFCN required Power Level AFC values and RX or TX mode should be set 2 General...

Страница 40: ...RX 1 At case of GSM measurement ARFCN 62 947 4MHz Generator RF level 20dBm 2 At case of DCS measurement ARFCN 698 1842 4MHz Generator RF level 20dBm 3 Test probe attenuation 20 dBm TX 1 At case of GSM...

Страница 41: ...er the antenna is well installed Check by a spectrum analyzer For GSM whether SW1_8 has a signal as shown in figure 1 or For DCS whether SW1_8 has a signal as shown in figure 2 Check C154 C46 C153 L22...

Страница 42: ...ure 5 or for DCS whether IC9_30 and IC9_31 have signals as shown in figure 6 Check C37 L15 and L16 Or C103 L20 and L4 re solder or replace the related part s in worst case Check whether IC9_13 IC9_16...

Страница 43: ...RBW 1 MHz VBW 3 MHz SWT 2 5 ms Att 20 dB 1 PK MAXH PRN 120 110 100 90 80 70 60 50 40 30 20 Marker 1 T1 49 48 dBm 947 400000000 MHz 1 Date 27 DEC 2002 14 34 45 Ref 20 dBm Att 20 dB A 7 5 MHz Center 1...

Страница 44: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 44 of 90 Confidential Document Figure 7 Figure 8...

Страница 45: ..._37 is 2 85V and check C60 C57 and so on re solder or replace the part s in worst case Check by a spectrum analyzer For GSM whether IC9_18 and IC9_19 have a signal as shown in figures 11 and 12 or For...

Страница 46: ...nal Re solder or replace IC7 N Y Re solder or replace IC5 Check by a spectrum analyzer For GSM whether IC3_7 has a signal as shown in figure 19 or For DCS whether IC3_1 has a signal as shown in figure...

Страница 47: ...GSM C151 or DCS C150 re solder or replace the related part s in worst case Y Check by a spectrum analyzer For GSM whether SW1_8 has a signal as shown in figure 24 or For DCS whether SW1_8 has a signal...

Страница 48: ...tt 50 dB Center 902 4 MHz Span 25 MHz 2 5 MHz 1 PK MAXH PRN 80 70 60 50 40 30 20 10 0 10 20 Marker 1 T1 19 10 dBm 902 400000000 MHz 1 Date 27 DEC 2002 13 53 26 Figure 11 Figure 12 A Ref 20 dBm Att 50...

Страница 49: ...Hz Span 75 MHz RBW 3 MHz VBW 10 MHz SWT 2 5 ms 1 PK MAXH PRN 80 70 60 50 40 30 20 10 0 10 20 Marker 1 T1 20 21 dBm 1 747400000 GHz 1 Date 30 DEC 2002 14 27 08 A Ref 20 dBm Att 50 dB 7 5 MHz Center 1 7...

Страница 50: ...Center 1 7475 GHz Span 75 MHz 7 5 MHz 1 PK MAXH PRN 80 70 60 50 40 30 20 10 0 10 20 Marker 1 T1 6 41 dBm 1 747400000 GHz 1 Date 30 DEC 2002 09 29 59 Figure 22 Figure 23 A RBW 1 MHz VBW 3 MHz SWT 2 5...

Страница 51: ...0 1 2 Power supply 2303 1 3 Power supply 2304 1 4 Power cable 2 5 Fixture 1 6 Computer 1 7 GPIB card PCI interface 1 8 GPIB cable 3 9 RF cable 1 10 Level shift 20cm 1 11 Dangle used to drive the test...

Страница 52: ...e phone is connected with PC 2 Mobile Info IMEI SERIO S W EEPROM Part No Fail ID Station and Fail Value CODE of the phone are shown 3 Mode Function Inline Test Calib MMI and Audio are currently provid...

Страница 53: ...tting 5 KEITHLEY 2304A GPIB Address b Test set Address setting 14 CMU 200 GPIB Address c Charger Address setting 6 KEITHLEY 2303A GPIB Address d COM Port setting e Click Init Instrument Check whether...

Страница 54: ...librate Function as shown below Menu of the PA Offset Calibration and Rx gain Calibration 1 Calibration Control Switch Calibration Control ON 2 PA Offset Cal Click PA Offset Cal to perform GSM PA Offs...

Страница 55: ...u the items will be shown as follows Menu of the AFC Calibration 1 Calibration Control Switch Calibration Control ON 2 AFC Cal Click AFC Cal to perform AFC Calibration 3 AFC parameter Transmit Power T...

Страница 56: ...90 Confidential Document 2 ADC Calibration to calibrate the battery of the phone Menu of the ADC Calibration 1 Calibration Control Switch Calibration Control ON 2 ADC Cal Click ADC Cal to perform ADC...

Страница 57: ...transformed or that a gap clearly caused between the battery after loaded and the rear housing so the transformed rear housing or the malfunctioned battery jack of rear housing should be replaced If...

Страница 58: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 58 of 90 Confidential Document...

Страница 59: ...if the phone s function recovers it is known that the former receiver was in poor condition If the faults are still not solved using the methods above it is possible that PCB has something wrong Plea...

Страница 60: ...n bad condition The vibrator is not fixed in place so it hits the rear housing when rotating so as to produce noises Pull out the vibrator re load it on the rear housing and check with instructions wh...

Страница 61: ...10 The battery is unable to be charged LEVEL PROBABLE CAUSE VERIFICATION AND REMEDY 1 Battery in bad condition Load a normal battery into the phone After the battery is charged using a charger if it...

Страница 62: ...ng IMEI Label FCT Label and DSN Label from the rear housing and then stick them on the new rear housing Before you tear off the labels heat them a bit using an air gun in order to prevent the labels f...

Страница 63: ...above l Print Port Dongle or USB Dongle l Ares Download Cable Level Shifter 2 Connection Method 1 At the time of use of the Print Port Dongle 2 At the time of use of the USB Dongle PC x 1 PrintPort Do...

Страница 64: ...l 2004 12 17 Page 64 of 90 Confidential Document 3 File Location Master Program Location A model data file clip to store the config file and the parameter setting file mdl of each model Master Program...

Страница 65: ...5 2062 and 2063 It indicates that the calibration state is checked or not at the case of upgrade 0 check 1 check To set an item to be kept an additional function of V2 5 If the predetermined item requ...

Страница 66: ...up file clip of which the file name is Serial number and the sub file name is eep and after the erase step if the download is failed you can click this backup to renew the value in the static eep of t...

Страница 67: ...Select a model 2 Select a method of Download 3 Select a COM Port of the transmission line 4 Select a fls file location of the downloaded software 5 Select an eep file location of the downloaded softwa...

Страница 68: ...pgraded to that of 2049_04 11 00M4 version including M4 and 2051_04 11 00M3 version including M3 above the DBTEL Service center utility must be used before the software is updated to read the IMEI cod...

Страница 69: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 69 of 90 Confidential Document 8 Click the icon to power off the phone at Test mode...

Страница 70: ...resent in the model data file clip 4 In the backup menu 1 Select a model 2 Select a piece of data to read from the phone 3 Select an item for a backup 4 Click Browse to determine the path of the store...

Страница 71: ...able to the phone from PC 5 Make sure that there is a cfg file corresponding to former software for the phone in the model data file clip and a cfg file corresponding to the later software for the pho...

Страница 72: ...rder to make the settings of the phone be present in an initial state Notes 1 Make sure of the model 2 Make sure that there is a mdl file in the model data file clip 3 Make sure of the com port of the...

Страница 73: ...Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 73 of 90 Confidential Document In the download menu booting key to start programming Download i...

Страница 74: ...ROM Default value of the new version of software and update the calibrated value in EEPROM if you want to update the phone software and further to keep the calibrated value of the phone you can select...

Страница 75: ...2004 12 17 Page 75 of 90 Confidential Document Notes 1 Make sure of the model 2 Make sure that there is a mdl file in the model data file clip 3 Make sure that there is a config file cfg of the origi...

Страница 76: ...ep if the download is failed you can click this backup to renew the value in the original static eep of the phone 7 Before updating the software remember to read the IMEI code from the phone using the...

Страница 77: ...data if the download is failed 1 Re download once the software Flash EEP_Default to be updated but partially the last failed eep file must be selected in the EEP_Backup data file clip for EEPROM Load...

Страница 78: ...ownload do not power on the phone the eep file of EEP_Backup is that of the software before updated so you must again execute flash EEP_Calibrated Download once for updating the software and at this t...

Страница 79: ...Confidential Document 3 After the download is OK the recovery of failed data and the software upgrade are completed Select a fls file of the software to be updated Select an eep file of the new softwa...

Страница 80: ...ect or the default value may be wrong and some functions are abnormal 6 Before updating the software remember to read the IMEI code from the phone using the DBTEL Service center utility software 7 Bef...

Страница 81: ...t yet been written to Hidden Zone Operation Flow Backup IMEI Update S W Restore IMEI Backup IMEI a Have the phone enter Test Mode b Use a version of Fastload or ServiceLoad with a Dongle v2 7 above To...

Страница 82: ...ice Manual 2004 12 17 Page 82 of 90 Confidential Document 4 Select a Backup Read IMEI from phone 5 Tick off an IMEI item 6 Click Start button to backup Determine a Com port Select a Backup Read IMEI f...

Страница 83: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 83 of 90 Confidential Document 7 Poweroff MS...

Страница 84: ...c DB 2051P Service Manual 2004 12 17 Page 84 of 90 Confidential Document SW upgrade 1 Use Fastload or ServiceLoad to upgrade the software Select Flash EEP_Calibrated 3 After the download is successful...

Страница 85: ...d have the phone enter Test mode b ClickMenu Backup c 1 Select a path of the backup file to be recovered and determine the file name 2 Determine a Com port 3 Select Restore write IMEI to phone from fi...

Страница 86: ...Ares Communications Technology INC 2051P Service manual 1 3 V3 0 doc DB 2051P Service Manual 2004 12 17 Page 86 of 90 Confidential Document Restore is successful 6 power off MS...

Страница 87: ...al Document Attachment 1 Newly added Flash types supported by ServiceLoad V2 5 An additional Key is provided SECOND_FLASH CS3 or CS2 can be set in a PIN section of the mdl file Newly added Flash ID SA...

Страница 88: ...at the data cannot be restored as a result of a wrong definition of Header of the backup file but ServiceLoad V2 6 will make a correction If you want to upgrade the preserved data of 2056 series some...

Страница 89: ...ow in order to perform the test for trouble shooting 1 The entire phone s functions check Observe the performance of the entire phone Verify by calling and answering a call whether the call functions...

Страница 90: ...ow in order to perform the test for trouble shooting 1 The entire phone s functions check Observe the performance of the entire phone Verify by calling and answering a call whether the call functions...

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