Hardware Maintenance Manual - Lenovo G50-30, G50-45, G50-70, Z50-70, Z50-75
Table Of Contents
- About this manual
- Safety information
- Important service information
- General checkout
- Related service information
- Lenovo G50-30/G50-45/G50-70/G50-70m/Z50-70
- Specifications
- Status indicators
- Hotkeys
- FRU replacement notices
- Removing and replacing an FRU
- 1010 Battery pack
- 1020 Base cover
- 1030 Optical drive
- 1040 Hard disk drive
- 1050 PCI Express Mini Card for wireless LAN
- 1060 DIMM
- 1070 Fan assembly
- 1080 Keyboard
- 1090 Keyboard bezel
- 1100 ODD board and USB&audio board
- 1110 System board
- 1120 Heat sink assembly
- 1130 Speakers and DC-in cable
- 1140 LCD unit
- 1150 LCD front bezel, LCD panel, and hinges
- 1160 Camera
- 1170 LCD cable and antenna assembly
- Locations
- Parts list
- Notices
19
General checkout
General checkout
Thischapterpresentsthefollowinginformation:
• “Whattodorst”onpage20
• “Powersystemcheckout”onpage21
Beforeyougotothecheckout,makesuretoreadthefollowingimportantnotes:
Important notes:
• Onlycertiedtrainedpersonnelcanservicethecomputer.
• BeforereplacinganyFRU,readtheentirepageonremovingandreplacing
FRUs.
• CarefullyremovescrewsforreusewhenreplacingFRUs.
• Beextremelycarefulduringsuchwriteoperationsascopying,saving,or
formatting. Drives in the computer that you are servicing sequence might
have been altered. If you select an incorrect drive, data or programs might be
overwritten.
• ReplaceanFRUonlywithanotherFRUofthecorrectmodel. When you
replace an FRU, make sure that the machine model and the FRU part number are
correct by referring to the FRU parts list.
• AnFRUshouldnotbereplacedjustbecauseofasingle,unreproduciblefailure.
Single failures can occur for a variety of reasons that have nothing to do with a
hardware defect, such as cosmic radiation, electrostatic discharge, or software
errors. Consider replacing an FRU only when a problem recurs. If you suspect that
an FRU is defective, clear the error logs and run the test again. If the error does
not recur, do not replace the FRU.
• BecarefulnottoreplaceanondefectiveFRU.