HTC Rev. A05 service manual Generic Troubleshooting, .Main Unit Does Not Respond to Power Button

Page 82

HTC Corporation

.

Doc. Title

Diamond Service Manual

Doc. No.

DOC-00040624 REV.

Issued Date

2008/4/14

 

A05

Revised Date

2008/6/23

Page

82 of 109

7. Generic Troubleshooting

1Main Unit Does Not Respond to Power Button

(1)Connect the AC adapter, maybe the battery pack is exhaust and wait few minutes for battery recharging.

(2)Check if battery installed well.

(3)Check the Power Button whether it’s damaged.

(4)Replace another battery pack.

(5)Try to start boot-loader mode [refer to section 4.2]. Re-flash ROM if boot loader mode is enabled.

(6)Check all connectors including LCD FPC to Main Board.

(7)Replace Main Board if necessary.

(8)Once the defective part has been identified, verify the defective part again whether the symptom could be duplicated with another unit.

2Touch Panel Does Not Respond to Screen Tap

(1)Check the connection of LCM FPC cable whether is properly connected.

(2)Try to cold boot the unit then perform screen tap again.

(3)Try with another T/P with housing assembly.

(4)Try with another Main Board.

(5)Replace T/P with housing if necessary

(6)Replace Main Board if necessary.

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

3Buttons Do Not Respond

(1)Try to cold boot the unit then tries again.

(2)Dismantle the unit; check the status of switches on the Main Board and the plastic parts of the Button not responding.

(3)Try with another Main Board or Front Bezel.

(4)Replace Main Board or Front Bezel if necessary.

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

HTC CONFIDENTIAL

SM-TP001-0704

Image 82
Contents Diamond Revision Control Table REV Date Contents Table of Contents Introduction Product Features MemoryGPS Qualcomm Based solution FM Radio Stylus Compatibility Test EZ SIP ZIP Regulatory Product overview HTC Corporation HTC Corporation HTC Corporation HTC Corporation HTC Corporation Device Disassembling and Assembling Procedure Tools ListDisassembling procedure HTC Corporation Speaker HTC Corporation HTC Corporation Disconnect the FPC Cable by Using Twezeers Carefully HTC Corporation HTC Corporation HTC Corporation HTC Corporation HTC Corporation HTC Corporation +LCD Module Assembling procedure HTC Corporation HTC Corporation HTC Corporation HTC Corporation HTC Corporation Main Board and Lock with Hook HTC Corporation HTC Corporation Torque 0.5 ± 0.1KGF-CM 72H02454-00M HTC Corporation Torque 0.9 ± 0.1KGF-CM 72H02474-00M 72H02767-00M *2 Torque 0.5 ± 0.1KGF-CM 72H02668-00M 72H02474-00M Assembly Completed Connect device to PC ROM upgrade thru RUU Re-flash Upgrade UtilityCheck the setting of menu Download OS Image from SDORUU RUU-1RUU-4 Rom Image upgrade thru SD card Format SD card and copy image file to SD cardDoc. Title SD Upgrade HTC CorporationAfter finish, press Reset button to reboot Diagnostic Program List of Diagnostic / WinCE Test ItemsUnit Repair Process Pre-load Process-2 Doc. Title Pre-load Process-1Pre-load Process-3 Pre-load Process-5 Doc. Title Pre-load Process-4Pre-load Process-6 Pre-load Process-8 Doc. Title Pre-load Process-7Pre-load Process-9 Pre-load Table Pre-load Process-10Folder Name Bluetooth Test-2 WinCE Test Bluetooth TestBluetooth Test-3 USB Test Camera TestFM Radio Test GPS TestWlan Test Audio Test-2 Audio Test-1Audio Test-3 Audio Test-4 Audio Test-5Cap Sensor Test-2 Doc. Title Audio Test-6Cap Sensor Test-1 Cap Sensor Test-3HTC Corporation Diagnostic Main Menu/Function Test Menu Test ProcedureAuto Test LED Test Stylus Detect TestROM Checksum Test Display Test BLUE/ Black pattern Display Test and RED/ Green patternDisplay Test WHITE/Color bar pattern Key Test Vibrator TestLCD Back Light Test Sensor Test Main board leakage current Test Procedure Control boxEquipment set up Types JigStart testing Idle current test Sleep current test Copy the Battery Rundown tool into the device Battery rundown test procedureTest Requirement Doc. Title Battery Rundown-1 Battery Rundown-2Battery Rundown-3 Doc. Title Battery Rundown-4 Battery Rundown-5Please replace a new battery Battery Rundown-6Cosmetic Inspection Criteria Classes definition of inspective areaDisplay inspection Main unit inspection Step Between Mating Parts.Touch Panel Does Not Respond to Screen Tap Generic Troubleshooting.Main Unit Does Not Respond to Power Button .Buttons Do Not Respond.Back Light Does Not Turn ON/OFF .Unusual Vertical / Horizontal lines or partial display.PC Connection not possible .Battery Pack does not recharge .Battery Pack does not start.Battery discharges quickly even after fully charged 10.No Sound from Speaker or Distorted sound11.No Recorded Sound or Distorted sound 12.Wireless connection WLAN/BT not functioning12.GPS not functioning 12.Internal storage device not functioning Agency labelDIAM100 Generic Labeling PlanDescription Agency labelDIAM110 Agency labelDIAM120 Agency labelDIAM130 Agency labelDIAM140 Agency labelDIAM300 Unit label location explanation Battery label Standard battery 900mAhLi-ionEnglish versionStandard battery 900mAhLi-ion Polymer Desay English version Generic Spare Part List and Photos SPL for RepairHTC Corporation HTC Corporation HTC Corporation 100 101 102 „ Basic Repair Instructions for Component Replacement Board Level 2.5 Repairs51H40485-XXMPCBA-MAIN Board Side a DescriptionMAM3 MAM7 MAM2 51H40485-XXMPCBA-MAIN Board Side B Location DescriptionMAM14 RF Antenna Specification Wcdma Band Eirp & Sensitivity TestChannel