BenQ A31 Service Manual

Text of BenQ A31 User Guide:

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 40 of 46 18 IO Connector Problems Fault Symptoms Customer: GRT: Charging Problems No connection to GRT Problems with external loudspeaker or microphone when using a car kit Problems with accessories connected at the IO connector Connector IO Jack IO connector Problems Watch for oxidation and damaged pads of the IO connector Caused by customer SCRAP - has to be send separately to WSC Okay Not oka y Check the dust inside the IO connector

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 24 of 46 The access to the JPICS server which is located in Kamp – Lintfort is protected by chip card and in addition using secure socket layer (SSL) connection. The JPICS server is only available for authorized users with a specially coded smart card. These smart cards and the administration of the JPICS web server and the PICS database – server can only be provided by the JPICS – TRUST – Center of the responsible department in Kamp �

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 32 of 46 GSM Test: With the availability of the GRT Test /Alignment software, this tool has to be used to perform the outgoing test! >Connect the mobile/board via internal antenna (antenna coupler) and external antenna (Car cradle/universal antenna clip) to a GSM tester >Use a Test SIM For Triple Band phones use a separate test case, if the test software allows only one handover. Skip the GSM Band test cases if not performed by the mobile phone Example: 1. Test file Band 1 = GSM900 / Band 2 = GSM1800 2. Test file Band 1 = GSM1900 Internal Ant

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 21 of 46 9.3 Case 2: Operator SWAP (red) Step 1: Carry out step 1 – 4 to start SW-Update. 1.1.1.1.1.1.3 Read out phone type/Variant. >>Appears in the window above. 3 Choose if customer data shall be erased. If “Yes” activate the boxes in front of xfs and mapping Start SW-Update Select the mobile phone CPU type 4 1 2 Remarks: - The decision about a BenQ Mobile authorised SW-Update depends only on the Master-Table . - The user has no chance to influence the decision - Xfs and mapping are a

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 33 of 46 External Antenna 7 Call from MS • GSM900 • high TCH • second highest PCL • BS Power = -75 dBm • middle BCCH • Keyboard check • individual check 8 TX GSM Band 1 • high TCH • second highest PCL • BS Power = -75 dBm • middle BCCH • Frequency Error • Phase Error RMS • Phase Error Peak • Average Power • Power Time Template • GSM Spec. 9 RX GSM Band 1 • high TCH • BS Power = -102 dBm • 50 Frames • middle BCCH • RX Level • RX Qual • BER Class I

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 20 of 46 5.1 9.2 Case 1: Personal Repair (green) Step 1: Carry out step 1 – 4 to start SW-Update. 1.1.1.1.1.1.2 Read out phone type/Variant. >>Appears in the window above. 3 Choose if customer data shall be erased. If “Yes” activate the boxes in front of xfs and mapping Start SW-Update Select the mobile phone CPU type 4 1 2 Remarks: - The decision about a BenQ Mobile authorised SW-Update depends only on the Service Release-Table . - The SW which is booted by GRT can b

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 39 of 46 17 SIM Card Problems Fault Symptoms Customer: GRT: Handset does not accept SIM card SIM Card Problems SIM Card Problems Watch for oxidation and damaged pads of the SIM Card reader Caused by customer SCRAP - has to be send separately to WSC Okay Not oka y Check the status of the EMI Filter visually Check the status of the SIM Card reader visually Use the resistor test function of a multimeter to check connection between spring contacts and soldering contacts. The

• 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 Company Confidential 2005©BenQ

• Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 8 of 46 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. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 11 of 46 Overview Upper Parts Overview Lower Parts Loud- speaker Display Screws Ke yp ad Upper Base Ass y Battery Cover Assy PCB Battery Vibramoto r Lower Case Assy Earphone 6 Assembly of A31 Step 1 Assemble Keypad by using Tweezers. Step 2 Assemble Earphone by using Tweezers. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 13 of 46 Step 9 Assemble the Vibramotor by using tweezers. Step 10 Assemble MMI and Upper Case Assy. Step 11 Assemble Lower Case Assy. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 26 of 46 Generate Codes In the JPICS application you can choose to generate: • Masterphone codes • Simlock – Unlock – Codes Masterphone codes The Masterphone code is used to unlock blocked mobiles. Masterphone codes can only be supplied for mobiles which have been delivered in a regular manner. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 41 of 46 19 Main Keypad Illumination Problems Fault Symptoms Customer: GRT: Main keypad illumination does not work Current measured failed LED’s Problems Watch for oxidation and damaged pads of the LED’s Caused by customer SCRAP - has to be send separately to WSC Okay Check the status of the battery connector visuall y Use the diode test function of a multimeter to check the status of the diode. The typical voltage drop on the diode is 1.7 V when testing the diode function with the multimeter. Exchange

• Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 19 of 46 9.1 Window explanation This general explanation is valid for all SW-Update channels (Personal Repair, Operator SWAP, Operator SWUpdate) Stop / leave SW-Update Start button for SW- Update Shows the different SW –Versions a) SW inside the mobile phone b) Version of Ser

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 4 of 46 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. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 22 of 46 9.4 Case 3 Operator SWUPdate (blue) Step 1: Carry out step 1 – 4 to start SW-Update. 1.1.1.1.1.1.4 Read out phone type/Variant. >>Appears in the window above. 3 Choose if customer data shall be erased. If “Yes” activate the boxes in front of xfs and mapping Start SW-Update Select the mobile phone CPU type 4 1 2 Remarks: - The decision about a BenQ Mobile authorised SW-Update depends only on the Master-Table . - The user has no chance to influ

• Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 36 of 46 13 Introduction of Service Repair Documentation for Level 3 Basic Repairs – A31 Purpose This part of Service Repair Documentation is intended to carry out repairs on BenQ Mobile repair level 3basic (only for workshops without level 3 equipment (special agreement require

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 9 of 46 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. Company Confidential 2005©BenQ

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 7 of 46 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

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 15 of 46 7 BenQ Mobile Service Equipment User Manual Introduction Every LSO repairing BenQ Mobile handset must ensure that the quality standards are observed. BenQ Mobile has developed an automatic testing system that will perform all necessary measurements. This testing system is known as: BenQ Mobile Service Equipment • For disassembling / assembling Torque – Screwdriver Part Number: F 30032 – P 228 – A1 Opening tool (Case opening without destroying) Part Number: F 30032 – P 38 – A1 Alternative Opening tool Part Number: F30032 �

• BenQ A31, Release 1.0 Technical Documentation 10/2005 TD_Repair_L2.5L_A31_R1.0.pdf Page 25 of 46 Installation overview The following installation description assumes that a web browser is already installed. JPICS is tested with the following browsers: 1. Internet Explorer Version 5.5 and higher 2. Netscape Version 6 and higher For further information regarding supported browsers, browser version and supported operating systems, see the Sun FAQ’s. Here is a step by step instruction to install all the required components: It is necessary to follow this order! 1. Smart Card Reader (Omnikey: Cardman 2020 USB

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