Lenovo TD100 Uživatelský manuál stáhnout pdf (Strana 197)

v Follow the suggested actions in the order in which they are listed in the Action column until the problem

is solved.

v See Chapter 3, “Parts listing, TD100 Types 6398, 6399, 6419, 6429, 4203, and 4206,” on page 25 to

determine which components are customer replaceable units (CRU) and which components are field

replaceable units (FRU).

v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a

trained service technician.

Symptom Action

The screen is blank.

1. Make sure that:

v The server is turned on. If there is no power to the server, see “Power

problems” on page 182.

v The monitor cables are connected correctly.

v The monitor is turned on and the brightness and contrast controls are

adjusted correctly.

v No beep codes sound when the server is turned on.

Important: In some memory configurations, the 3-3-3 beep code might sound

during POST, followed by a blank monitor screen. If this occurs and the Boot

Fail Count option in the Start Options of the Configuration/Setup Utility

program is enabled, you must restart the server three times to reset the

configuration settings to the default configuration (the memory connector or

bank of connectors enabled).

2. Make sure that the correct server is controlling the monitor, if applicable.

3. Make sure that damaged BIOS code is not affecting the video; see “Recovering

from a BIOS update failure” on page 203.

4. See “Solving undetermined problems” on page 215.

The monitor works when you

turn on the server, but the

screen goes blank when you

start some application

programs.

1. Make sure that:

v The application program is not setting a display mode that is higher than the

capability of the monitor.

v You installed the necessary device drivers for the application.

2. Run video diagnostics (see “Running the diagnostic programs” on page 189).

v If the server passes the video diagnostics, the video is good; see “Solving

undetermined problems” on page 215.

v (Trained service technician only) If the server fails the video diagnostics,

replace the system board.

Chapter 5. Diagnostics 179

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Lenovo TD100 Uživatelský manuál Strana 197