HTC MDA2 service manual PC Connection USB / Serial not possible, IrDA Connection not possible

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(3)Try with another Main Board.

(4)Replace Main Board if necessary.

(5)Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

5A PC Connection (USB / Serial) not possible

(1)Check whether “Connection Settings” in the MS ActiveSync is properly set.

(2)Check whether it connects with other cables or cradle, customer’s cable might be damaged.

(3)Check the external appearance of the connector on the unit whether it is physically damaged.

(4)Replace Main Board if necessary.

(5)Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

5B Wireless Connection (GSM / WAP / GPRS) not possible

(1)Make sure the user has been contacting the Carrier for SIM Card validation and activation.

(2)Make sure the Wireless Connection Settings has been properly set.

(3)Make sure the SIM Card is properly inserted to the SIM compartment. Make a life call or test

it with the RF Test Station (Antenna Test).

(4)Dismantle the Main Unit and check whether the Antenna is properly installed.

(5)Try with another Antenna.

(6)Try with another Main Board if necessary.

(7)Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

5C IrDA Connection not possible

(1)Make sure the IrDA port settings on the Notebook or PC are properly set.

(2)Make sure the IrDA function is properly activated on the Pocket PC and on the other device.

(3)Make sure there’s no obstruction between the two devices in connection and within the distance.

(4)Check the IrDA window whether it is broken or cracked. Replace Front Bezel if necessary.

(5)Replace Main Board if necessary.

(6)Once the defective part has been identified, verify it again with the defective part whether the symptom could be duplicated.

HTC confidential

© 2001, HTC Corporation. All rights reserved.

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Contents For MDA2 APP D Table of contents Product Specifications 2Specifications of MDA2Introduction Specification of AC Adapter GSM/GPRS Functional BlockGPRS/GSM PDA Functional BlockTotal 43 CONT.ON page no Total 43 CONT.ON page no TTE System Block Diagram Servicing Tools Assembling and Disassembling DisassemblingTotal 43 CONT.ON page no Total 43 CONT.ON page no Total 43 CONT.ON page no Use tweezers to remove the Vibrator Speaker Total 43 CONT.ON page no Gasket LCM Poron Total 43 CONT.ON page no Total 43 CONT.ON page no Antenna Assembly TipsFIX Antenna Cover Test Problem Diagnostics List of Test Jigs Classification of Non-Conformity Touch Panel Does Not Respond to Screen Tap Back Light Does Not Turn ON/OFF Buttons Do Not RespondUnusual Vertical / Horizontal lines or partial display SD Card cannot be usedWireless Connection GSM / WAP / Gprs not possible PC Connection USB / Serial not possibleIrDA Connection not possible Data Retention related problem Battery Pack does not startNo Sound from Speaker or Distorted sound Battery discharges quickly even after fully chargedBattery Pack does not recharge No Recorded Sound or Distorted soundHousing Cosmetic damage Diagnostic Program Clean Talk TimeStop on fail Checksum Refurbishment Exploded Diagrams & Spare part list Spare part list Appendix Customer, Retailer MisjudgmentResponse HTC confidential Repair Troubleshooting Guide