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OptiPlex G1の取扱説明書・マニュアル [全174ページ 1.59MB]

Dell Diagnostics: Dell OptiPlex GX1 Small-Form-Factor System User's Guidefile:///C|/infodev/2013/eDoc/OpGX1/UG/diag.htm [2/21/2013 11:47:14 AM]Mode Pages Test, and Graphics Mode Test.Keyboard Test GroupThe subtests in the Keyboard Test Group verify the correct operation of your keyboard and the keyboardcontroller chip.The five keyboard subtests confirm the following keyboard functions:Keyboard Controller TestConfirms the ability of the keyboard controller chip to communicate with the keyboard and theprogramming of the controller chipKeyboard Key Sequence TestVerifies that the keys on the keyboard function correctly when you press the keys in a predefinedorderKeyboard Interactive TestChecks the internal microcode of the keyboard and the external interface of the keyboardcontroller chip for a malfunctioning keyStuck Key TestChecks the internal microcode of the keyboard and the external interface of the keyboardcontroller chip for a repeating key signalExternal Key Pad TestChecks the contact beneath the key for an electrical impulse to ensure that the key is workingproperlyWhy Run a Keyboard Test?Keyboard problems are not always caused by the keyboard. For example, a complete lockup of the computersystem, rendering the keyboard inoperable, is more likely caused elsewhere. There are three symptoms thatare likely to be keyboard-related. Sometimes, the configuration of a program changes the function of a key orkey combination. Likewise, key configuration programs such as ProKey can change a key's function.Because these programs are memory resident, you should be sure to clear them out of your computer'smemory before running a subtest in the Keyboard Test Group. (Clear them from memory by booting yourcomputer from the diagnostics diskette.) When these possibilities have been eliminated, and if the followingsymptoms occur, you should run one or more of the subtests in the Keyboard Test Group:When you press a key, the character represented by that key appears repeatedly; the key seems to bestuck. Run the Stuck Key Test .When you press a key and the response is different from the usual response or the response youanticipated, the key contact may be damaged. Run the Keyboard Interactive Test .When a key does not work at all, run all of the subtests in the Keyboard Test Group.

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