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Inventec FLY DS400 Maintenance Instruction

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DG12BT(FLY DS400)_Maintenance Instruction
Prepared by : Tan, Hong Yun
Approved by : Zhang, Guo-Pei
Date: 2008-07-12

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Summary of Contents for Inventec FLY DS400

  • Page 1 DG12BT(FLY DS400)_Maintenance Instruction Prepared by : Tan, Hong Yun Approved by : Zhang, Guo-Pei Date: 2008-07-12...
  • Page 2 LED NG (on the LCD) LED NG (on the keyboard) Key NG No ring No receiving voice No sending voice or the voice is small No vibration Card inefficacy ((Main module) Card inefficacy ((Sub-module) Camera inefficacy Bluetooth inefficacy TF card inefficacy Inventec Confidential...
  • Page 3 (main module) BT area FM area Earphone CONN Adapter CONN (sub-module) Antenna Camera CONN ( Main module) Antenna (sub-module) Crystal (sub-module) Socket of PIN card & FLASH Ring Chip RF PA (sub-module) TF card (sub-module) (sub-module) RF transceiver (sub-module) Inventec Confidential...
  • Page 4 Innovating Customer Value FLASH K/B CONN (main module) (main module) Receiver RF PA (main module) Transceiver Power supply chip (main module) Inventec Confidential...
  • Page 5 Check whether the Reassemble connection of K/B & the K/B M/B is OK Take out the LCD and Cross-testing the SPK, Check whether it is LCD&SPK, powered on Change the defective Inventec Confidential...

  • Page 6: Table Of Contents

    Check whether the Check whether U5 output voltage of U5 pin4 has an voltage Change U5,C33,L8 pin3 is 0.58V around of 2.8V around Change U501 Change the FLASH(U903) of the main module, check whether it is OK Change the Inventec Confidential CPU(U100)
  • Page 7 Innovating Customer Value R548 R502 R504 R505 R506 R507 R508 Inventec Confidential...
  • Page 8 Innovating Customer Value Inventec Confidential...

  • Page 9: Check Whether Y

    Check whether it is OK Check whether Change RG106, RG106,RG107(47K), RG107,QG101 QG101 is broken Check whether there is anyone in CG120- Change the defective CG127 broken Check whether the Change XG100, output frequency of CG114,CG113 XG100 is 32.768K Inventec Confidential...

  • Page 10: Check Whether The N

    Change XG5 XG5 is 26M Replace with the programming FLASH (UG200) of sub-module, check whether it is OK Change the CPU (UG100) of sub-module, check whether it is OK Change the CPU (U100) of main module Inventec Confidential...
  • Page 11 Innovating Customer Value Inventec Confidential...
  • Page 12 Innovating Customer Value Inventec Confidential...
  • Page 13 Reassemble the battery, is lost or at the rubber other location Check whether the battery and the key pad of J501 is Wipe off the thing oxidized or there is or clean the key pad anything else on them Inventec Confidential...

  • Page 14: Changex100

    Or change the FPC void-welded Check whether there is any pin of the Change CN601 connector ‘CN601’ ( M/B &K/B) broken Check whether X100 ChangeX100, output frequency is C100,C101 32.768K exactly Refer to the maintenance method of ‘No power on’ Inventec Confidential...
  • Page 15 Innovating Customer Value Inventec Confidential...
  • Page 16 Change the battery the primary cell is broken Check whether the Clean the K/B, problem is resulted reassemble or change from ‘KEY NG’ the metal dome Check whether the problem is resulted Change the LCD from the LCD itself Inventec Confidential...
  • Page 17 Check whether there is any pin of the connector Change CN601 ‘CN601’ ( M/B &K/B) broken Replacing with the programming FLASH of the main module, check whether it is OK Refer to the servicing method of ‘No power on’ Inventec Confidential...
  • Page 18 Check Change the adaptor whether the primary adaptor is broken Check whether the Clean or battery connector ‘J501’ change J501 is oxidized or is broken Check whether the Re-weld or connector ‘CN602’ is change CN602 void-welded or broken Inventec Confidential...

  • Page 19: Change U501

    R504(100K) R504 Check whether there is anyone broken of Change the defective R505~R508(100K) Check whether there Change Q501, is anyone broken of R510(0ohm) Q501,R510 Change U501, check whether it is OK Change the CPU(U100) of the main module Inventec Confidential...
  • Page 20 Replace with a good battery, Check Change the battery whether the primary cell is broken. Check whether there is anyone broken of R505- Change the battery R508(100K) Change U501, check whether it is OK Change the CPU Inventec Confidential...
  • Page 21 D/L the latest edition, Check whether it is Check whether the Re-weld or LCD is weakly change the LCD welded or broken Check whether Change R602 R602(0ohm) is broken Change the CPU Of the main module Inventec Confidential...
  • Page 22 Innovating Customer Value Inventec Confidential...

  • Page 23: Change L501,L502

    Change Q502,D502 Q502 pin3 is at the high level Check whether there is anyone broken of Change the defective R539,R537,R540, R541 Change U501, Change the CPU check whether it is of the main module Inventec Confidential...
  • Page 24 Innovating Customer Value Inventec Confidential...
  • Page 25 Check whether the connection of CN601 Reassemble the K/B &K/B FPC is OK,FPC is Or change the FPC void-welded Check whether there is any pin of the connector Change CN601 ‘CN601’ ( M/B &K/B) broken Inventec Confidential...
  • Page 26 Innovating Customer Value Check whether the resistor beside the Change the resistor LED is broken Check whether the Check R620, voltage at R620 is at R619,Q602 the high level(1V)) Change the CPU Of the main module Inventec Confidential...
  • Page 27 Check whether the Reassemble the K/B connection of CN601 Or change the FPC &K/B FPC is OK,FPC is void-welded Check whether there is any pin of the connector Change CN601 ‘CN601’ ( M/B &K/B) broken Inventec Confidential...
  • Page 28 Innovating Customer Value Check whether the Chang the side-key FPC side-key is NG Or the side-key metal dome Check whether there is anyone broken of Change the defective D605-D618 Change the CPU Of the main module Inventec Confidential...
  • Page 29 8ohm normally Check whether it has an output Check L405,L406 voltage of 1.8V at U404 pin5,8 Check whether is has Check R422,R421, an output voltage of R431,C421,C431 1.8V at U404 pin3,4 Inventec Confidential...
  • Page 30 Innovating Customer Value Check whether the voltage at U404 pin1 is Change U404 at the high level Check whether Change R423 R423(20K) is broken Change the CPU Of the main module Inventec Confidential...
  • Page 31 Innovating Customer Value Inventec Confidential...
  • Page 32 REC is void- welded the resistance, the Change the REC or broken resistance of it is 30ohm around Check whether Check L412,L413 L412,L413 are broken Change U407,U406, U408,check whether it is OK Change the CPU Inventec Confidential Of the main module...
  • Page 33 Innovating Customer Value Inventec Confidential...
  • Page 34 MIC is weakly welded gearing to the resistance, change the MIC or broken the positive resistance of it is 1K, the opposite is 0.8K around in general. Check whether there is anyone broken of Change the defective R400,R432(1K), R405,R406(1.5K) Inventec Confidential...
  • Page 35 Innovating Customer Value Check whether there is anyone broken of Change the defective C402,C403,L401,L402 Change U400,U401, check whether it is OK Change the CPU of the main module Inventec Confidential...
  • Page 36 Innovating Customer Value Inventec Confidential...
  • Page 37 Change the motor the resistance, the motor is broken resistance of it is 22ohm in general Entering test mode, Check R533(1K), Check whether it has an Q503,D500 voltage of 1V at R526 Change the CPU Of the main module Inventec Confidential...
  • Page 38 Innovating Customer Value Inventec Confidential...
  • Page 39 Check whether the Change the SIM card SIM card is broken Check whether the Re-weld or socket ‘J602’ is void- change J602 welded or broken Change U501, Check whether it is OK Change the CPU Of the main module Inventec Confidential...
  • Page 40 Change the SIM card is broken SIM card Check whether the Re-weld or socket ‘J601’ is void- change J601 welded or broken Check whether there Change the defective is anyone broken of D619-D622 Change the CPU Of the sub-module Inventec Confidential...
  • Page 41 Innovating Customer Value Inventec Confidential...
  • Page 42 Check whether U702 Check whether the pin1 has an voltage of voltage at U702 pin4,6 is Change U702 2.8V,pin3 has 1.5V the high level 更换主模CPU Check whether Change R701,R703 R701,R703 are broken Change the CPU Of the main module Inventec Confidential...
  • Page 43 Innovating Customer Value Inventec Confidential...
  • Page 44 Innovating Customer Value Inventec Confidential...
  • Page 45 D/L the latest edition, check whether it is OK Check whether the Reassemble the BT antenna is antenna touched well Check whether J301 is void- Change J301 welded or broken Check whether Change BPF301,L302 are void- BPF301,L302 welded or broken Inventec Confidential...
  • Page 46 Change R525 R525(0ohm) is voltage of 2.8V at R525 broken Check whether Change X301 has an output X301，C309，C310 frequency of 26M Change U301, check whether it is OK Change the CPU Of the main module Inventec Confidential...
  • Page 47 Innovating Customer Value Inventec Confidential...
  • Page 48 Innovating Customer Value Inventec Confidential...
  • Page 49 Innovating Customer Value Inventec Confidential...
  • Page 50 OK Check whether the Change J601 socket ‘J601’ is void- welded or broken Check whether it has an voltage of Change R530 2.8V at R530 Change U501, check whether it is Change the CPU Of the main module Inventec Confidential...

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