Toshiba Satellite L300 Maintenance Manual - Page 136

4.1 General 4 Replacement Procedures 4 1 4.1 General This chapter explains how to disassemble the computer and replace Field Replaceable Units (FRUs). Some replacement procedures may not require you to remove all the surrounding FRUs to replace only one FRU. The chart below shows the FRUs in the order in which they should be removed in a top-down manner, irrespective of their physical locations. The FRUs shown in the top area of the chart should normally be removed before removing the FRUs shown in the bottom area. To replace the FRUs, first identify the suspect FRU for the system failure. Next, according to this chart, determine the FRUs that need to be removed before removing the suspect FRU. After you determine those FRUs, go to the appropriate sections according to the section numbers shown in the boxes. Then start removal and replacement. 4. 2 HDD 4. 3 ODD Bay Module 4.7 Top Cover 4. 16 Speakers 4.17 Touch Pad and Touch Pad Board 4. 4 Keyboard 4. 5 MDC Module 4. 8 Display Assembly 4. 6 Wireless LAN Card 4. 18 USB cable, CRT cable, Power Button Board, AC-IN cable and RJ11 cable 4. 9 System Board, AC-IN cable and ODD Extended Board 4. 10 Cooling Module and Fan 4. 11 CPU 4. 12 Display Mask 4. 13 FL Inverter Board 4. 14 CCD Board and MIC 4. 15 LCD Modules How to use the chart (two examples): • For removing the System Board: First, remove the top cover with the display assembly. Then, remove the HDD, selectable bay module, Bluetooth card, keyboard, and wireless LAN card, all of which are shown above the top cover with the display assembly. • For removing the LCD Module: First, remove the display mask and FL inverter board, both of which are shown above the LCD module. 4. 2 HDD 4. 4 Keyboard 4. 5 MDC Module 4. 6 Wireless LAN Card 4. 12 Display Mask 4. 3 ODD Bay Module 4.7 4. 8 Display Assembly 4. 13 FL Inverter Board Top Cover 4. 16 Speakers 4. 17 Touch Pad and Touch Pad Board 4. 18 USB cable, CRT cable, Power Button Board, AC-IN cable and RJ11 cable 4. 9 System Board, AC-IN cable and ODD Extended Board 4. 10 4. 11 Cooling Module CPU and Fan 4. 14 CCD Board and MIC 4. 15 LCD Modules System Board LCD Module Satellite L300D/L305D/ Satellite Pro L300D/ EQUIUM L300D/ SATEGO L300D Maintenance Manual 4-1