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HTC confidential
© 2001, HTC Corporation. All rights reserved. TOTAL 77 CONT.ON. 64 PAGE NO. 63
B Buttons Do Not Respond
(1) Dismantle the unit, check the status of switches on the Main Board and the plastic parts of
button of the Button not responding.
(2) Try with another Main Board or Front Bezel.
(3) Replace Main Board or Front Bezel if necessary.
(4) Once the defective part has been identified, verify it again with the defective part whether
the symptom could be duplicated.
(5 ) Hard Reset The unit.
A Unusual Vertical / Horizontal lines or partial display
(1) Check the connection of LCM FPC whether is properly connected.
(2) Try with another LCM.
(3) Try with another Main Board.
(4) Replace LCM 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.
B Back Light Does Not Turn ON/OFF
(1) Check the connection of FPC whether is properly connected.
(2) Try with another LCM.
(3) Try with another Main Board.
(4) Replace LCM 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.