4 Replacement Procedures 4.1 General
PORTEGE M300 Maintenance Manual (960-504) 4-5
After installing an FRU in the computer, confirm that the FRU and the computer are
functioning properly.
Tools and Equipment
The use of Electrostatic Discharge (ESD) equipment is very important for your safety and the
safety of those around you. Proper use of these devices will increase the success rate of your
repairs and lower the cost for damaged or destroyed parts. The following equipment is
necessary to disassemble and reassemble the computer:
• One M1.4, point size 0 Phillips screwdriver to remove and replace screws
• One M2, point size 0 Phillips screwdriver to remove and replace screws
• One M2.5/M3, point size 1 Phillips screwdriver to remove and replace screws
• One M5 hexagonal screwdriver
• Tweezers, to lift out screws that you cannot grasp with your fingers
• ESD mats for the floor and the table you are working on
• An ESD wrist strap or heel grounder
• Anti-static carpeting or flooring
• Air ionizers in highly static sensitive areas
• Antenna coaxial cable disconnector