HTC SAPPHIRE SM-TP008-1125 - Manual (Page 62)

2/10/2009 9:51:19 PM
HTCUSA-200015
Doc. No. DOC-00051810 REV.
Issued Date 2008/12/29
.
Revised Date 2009/01/14
AX02
Doc. Title Sapphire Service Manual Page 62 of 91
HTC CONFIDENTIAL
SM-TP008-1125
HTC Corporation.
6 Generic Troubleshooting
1 Main 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.
2 Touch 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 LCM.
(4) Try with another Main Board.
(5) Replace LCM 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.
3 Buttons 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.