Toshiba T4900CT Manual page 123

Assembly Procedures
After you have disassembled the T4900CT and fixed or repaired the problem that was causing
the T4900CT to operate abnormally, you will need to reassemble the T4900CT.
While assembling the T4900CT, remember the following general points:
Take your time, making sure you follow the instructions closely. Most problems arise
when you hurry to assemble the T4900CT.
Make sure all cables and connectors are securely fastened.
Before securing the FRU or other parts, make sure that no cables will be pinched by
screws or the FRU.
Check that all latches are closed securely in place.
Make sure all the correct screws are used to secure all FRUs. Using the wrong screw
can damage either the threads on the screw or the head of the screw, and may prevent
proper seating of an FRU.
Be sure to fasten screws securely. If a screw is not fully fastened, it could come loose,
creating a danger of a short circuit, which could cause heat and smoke.
If you replace the battery pack, RTC battery, or backup battery, be sure to use only
the same model battery or an equivalent battery recommended by Toshiba. Installation
of the wrong battery can cause the battery to explode.
After installing an FRU in the T4900CT, confirm that the FRU and the T4900CT are func-
tioning 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 T4900CT:
One M2 Phillips screwdriver to remove and replace screws.
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.
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T4900CT