BenQ A31 User manual

Release 1.0
Technical Documentation 10/2005
TD_Repair_L2.5L_A31_R1.0.pdf Page 1 of 46
Service Manual
A31
Level 1-3
Release Date Department Notes to change
R 1.0 28.12.2005 BenQ Mobile S CC CES New document
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2005©BenQ

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Table of Content
1Key Feature................................................................................................................................3
2A31 Interface to Accessories ...................................................................................................4
3Unit Description of A31.............................................................................................................5
4Exploded View of A31...............................................................................................................6
5Disassembly of A31 ..................................................................................................................7
6Assembly of A31 .....................................................................................................................11
7BenQ Mobile Service Equipment User Manual.....................................................................15
8GRT Software: Functionality Configuration..........................................................................16
9GRT Software: Regular Usage ...............................................................................................18
10 JPICS (Java based Product Information Controlling System)............................................23
11 International Mobile Equipment Identity, IMEI......................................................................29
12 General Testing Information...................................................................................................30
13 Introduction of Service Repair Documentation for Level 3 Basic Repairs – A31..............36
14 List of available Level 3 Basic Parts......................................................................................37
15 Hardware Requirements.........................................................................................................37
16 A31 Board Layout....................................................................................................................38
17 SIM Card Problems .................................................................................................................39
18 IO Connector Problems ..........................................................................................................40
19 Main Keypad Illumination Problems......................................................................................41
20 Connector Battery...................................................................................................................42
21 Display Problems ....................................................................................................................43
22 Connector RF Internal Antenna .............................................................................................44
23 Filter EMI Problems.................................................................................................................46
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1 Key Feature
Supported Systems Band GSM 900/1800
Band GSM 850/1900
EGSM (GSM phase 2/phase 2+)
GPRS multislot class 8, coding scheme 1-4*
Vocoders FR, HR, EFR, AMR
Stand-by Time Up to 270 h (standard battery)
Talk Time Up to 300 min (standard battery)
Battery Technology
Battery Capacity Li-Ion 820 mAh
Less than 2 h for 100%
Weight 85 g
Volume 75 cm³
Length 102 mm
Width 46 mm
Thickness 17.6 mm
SIM Functionality /
Security Controls
SIM Application Toolkit (Rel. 99)
SIM lock, various levels
PIN 1 & 2 control
Ciphering A5.1 and A5.2
SIM plug-in (3/1.8 V), SAT rel 99
Antenna Integrated
Data Services Mobile Internet access (WAP 1.2.1 & parts of 2.0)
Data download OTA via SMS or WAP
MMS class 3
EMS rel. 4.3
Data services (CSD) at 9.6 Kbps & GPRS
(up to 53.6 Kbps)
Display / Display Illumination 128 x 128 pixels, 65,536 colors, CSTN,
7 lines plus headline
Camera n / a
Connectivity Serial cable
Features 4-way navigation key & two soft keys
65,536 color display
Messaging: SMS, EMS, MMS
32-chord polyphonic ring tones
Basic organizer: event reminder, address book, and calendar
Mobile Phone Manager software, WAP, GPRS
Java MIDP 1.0, Java based games and applications
Speed dialing keys, Programmable soft keys
Handsfree talking
Alarm function
Calculator
Stopwatch
Silent alert (Vibra)
External Antenna Connector in the phone offers an interface for
a built-in car kit
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2 A31 Interface to Accessories
The car cradle is the same design of the G85 existing design. Nano I/O connector is for G85
generation. The compatible interface is suitable to use the travel charger.
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3 Unit Description of A31
The A31 Finch is designed as a Mono Block with non-exchangeable housing. The Upper case and
battery cover are painted parts (1k; 2 colours). IMD Lens will be mounted by double adhesive,
display, 128X128(reuse from Pegasus); semi-bridge keypad, 4-way Navi-Key, 12 keys block; IMD
lens (1pcs only); No ID concept will be realized on Battery Cover.
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4 Exploded View of A31
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5 Disassembly of A31
All repairs as well as disassembling and assembling have to be carried out in an ESD
protected environment and with ESD protected equipment/tools. For all activities the
international ESD regulations have to be considered.
For more details please check information in c – market
https://market.benqmobile.com/SO/welcome.lookup.asp
There you can find the document “ESD Guideline”.
Step 1
Remove Battery Cover Assy and Battery.
Step 2
Remove screws with the Torque –
Screwdriver T5+
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Step 3
Remove Vibramotor by using Tweezers.
Step 4
Remove Loudspeaker by using Tweezers.
Step 5
Remove MMI from Upper Case Assy by
using the Alternative Opening Tool
carefully.
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Step 6
To avoid scratches it is mandatory to place
a protection foil onto the Display!!!
Step 7
Remove Display by using the alternative
opening tool carefully.
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Step 8
Remove Earphone.
Press the hocks together and lift the
earphone up.
Step 9
Remove keypad by using tweezers.
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2005©BenQ