HTC SM-TP002-0706 service manual Generic Troubleshooting, HTC Corporation, Converse Service Manual

		Doc. No.	DOC-00044120	REV.
	HTC Corporation.
		Issued Date	2008/07/17	A03
	.
		Revised Date	2009/01/15
Doc. Title	Converse Service Manual	Page	61 of 78

7. 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．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.

3．Unusual Vertical / Horizontal lines or partial display

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

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

(3)Try to re-flash the ROM code.

(4)Try with another LCM.

(5)Try with another Main Board.

(6)Replace LCM if necessary

(7)Replace Main Board if necessary.

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

4．Back Light Does Not Turn ON/OFF

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

HTC CONFIDENTIAL

SM-TP002-0706