4 Replacement Procedures
Detroit 20 /Detroit 20E Series Maintenance Manual [CONFIDENTIAL] 4-iii
Chapter 4 Contents
4.1 General.......................................................................................................................4-1
4.2 Battery........................................................................................................................4-7
4.3 PC Card......................................................................................................................4-8
4.4 HDD......................................................................................................................... 4-10
4.5 Modem.....................................................................................................................4-12
4.6 Expansion Memory..................................................................................................4-13
4.7 Wireless LAN Unit.................................................................................................. 4-15
4.8 Optical Drive............................................................................................................4-18
4.9 Keyboard..................................................................................................................4-20
4.10 Display Assembly....................................................................................................4-22
4.11 Bluetooth.................................................................................................................. 4-25
4.12 Top Cover ................................................................................................................ 4-26
4.13 TouchPad ................................................................................................................. 4-28
4.14 System Board........................................................................................................... 4-29
4.15 Speakers................................................................................................................... 4-31
4.16 Thermal Module.......................................................................................................4-32
4.17 CPU and Fan............................................................................................................4-33
4.18 Display Mask...........................................................................................................4-35
4.19 LCD Module............................................................................................................4-36
4.20 FL Inverter Board .................................................................................................... 4-38