Service manual

4.Troubleshooting
4.3.HardwareTroubleshooting
4.3.1.LCD
#1.Thescreenisdarkorthecolorsofthescreenaredistorted.
1
Checktheconnectionstatus
-LCDModuleLCDCable
-LCDCableandMainboardLCDConnector
→ConnectCableandConnectorperfectly
2ReplacetheLCDAss’yDefectivenessconrmation
3
CheckifthereisapartoftheLCDthatisbentorbroken
duetoimpact
→ReplacetheLCDAss’y
#2.Nopictureappearsonthescreen.
1
Checktheconnectionstatus
-LCDModuleLCDCable
-LCDCableandMainboardLCDConnector
→ConnectCableandConnectorperfectly
→LCDAss’yreplace
2
CheckiftheSystemLEDofthemainboardisblinking
3CheckifthememorymoduleisoutoforderRe-xationorReplacementotherMemoryCard
4CheckifthePowerbuttoncanbenormallypressed.Checkoperatingornot
#3.TheLCDblinkswhilethesystemisinoperation.
1
Checkifthereisamagneticbodynearthetouchpad
buttonorthesystemorcheckifthereisanexteriordefect
totheLCD
2ReplacetheLCDAss’yDefectivenessconrmation
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