Lenovo X200 Bedienungsanleitung PDF herunterladen (Seite 51)

General checkout

This chapter presents following information:

v “What to do first” on page 44

v “Checkout guide” on page 45

– “Diagnostics using PC-Doctor for DOS” on page 45

– “Lenovo ThinkVantage Toolbox (Lenovo System Toolbox)” on page 48

– “PC-Doctor for Windows” on page 48

– “PC-Doctor for Rescue and Recovery” on page 49

– “FRU tests” on page 50

v “Power system checkout” on page 52

The descriptions in this chapter apply to any ThinkPad model that supports the

PC-Doctor

for DOS diagnostics program. Some descriptions might not apply to

your particular computer.

Before you go to the checkout guide, be sure to read the following important notes.

Important notes:

v Only certified trained personnel should service the computer.

v Before replacing any FRU, read the entire page on removing and replacing

FRUs.

v When you replace FRUs, use new nylon-coated screws.

v Be extremely careful during such write operations as copying, 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.

v Replace a FRU only with another FRU of the correct model. When you

replace a FRU, make sure that the model of the machine and the FRU part

number are correct by referring to the FRU parts list.

v A FRU should not be replaced because of a single, unreproducible failure.

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 a FRU only when a problem recurs. If you

suspect that a FRU is defective, clear the error log and run the test again. If

the error does not recur, do not replace the FRU.

v Be careful not to replace a nondefective FRU.

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Lenovo X200 Bedienungsanleitung Seite 51