Lenovo ThinkPad 560Z TP 560Z User's Guide that was provided with the system in - Page 125
No Error Codes or Messages, Problem, Action, Enter
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Title: C79FPMST CreationDate: 06/22/98 12:26:52 Troubleshooting Charts No Error Codes or Messages Problem The screen is blank and you don't hear any beeps. Note: If you are not sure whether you heard any beeps, power the computer off; then power it on again, and listen again. If you are using an external monitor, go to "External Monitor Problems" on page 124. The screen is blank and you hear a continuous beep, or two or more beeps. Only the cursor appears. Action If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter (see page 70). If the power-on password does not appear, the brightness control might be set to minimum brightness. Adjust the brightness. If the screen still remains blank, make sure that: The battery pack is installed correctly. The AC Adapter is connected to the computer and the power cord is plugged into a working electrical outlet. The computer power is on. (Power on the power switch again for confirmation.) If these items are correct and the screen remains blank, have the computer serviced. Have the computer serviced. Reinstall your operating system and power on the computer. If you still have a problem, have the computer serviced. Chapter 4. Solving Computer Problems 111