HTC Dream Service Manual page 91

Doc. Title
4．Unusual Vertical / Horizontal lines or partial display
(1) Check the connection of LCD 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 LCD.
(5) Try with another Main Board.
(6) Replace LCD 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.
5．Back Light Does Not Turn ON/OFF
(1) Check the connection of LCD FPC whether is properly connected.
(2) Try to re-flash the ROM code.
(3) Try with another LCD.
(4) Try with another Main Board.
(5) Replace LCD if necessary
(6) Replace 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.
6．CF/SD Card cannot be used
(1) Check whether CF/SD Card is fully inserted to the slot until you hear a click.
(2) Try to re-flash the ROM code.
(3) Try with another CF/SD Card.
(4) Try with another Daughter Board.
(5) Try with another Main Board.
(6) Replace Daughter Board 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.
HTC CONFIDENTIAL
HTC Corporation
.
Dream Service Manual
Doc. No. DOC-00045020
Issued Date 2008/07/14
Revised Date 2008/10/20
Page 91 of 113
REV.
A04