Grass Valley Profile XP Service Manual - Manual (Page 33)

23 July 2004 Profile XP Service Manual 33
Chapter
2
Troubleshooting Windows NT boot
problems
This chapter deals with problems that occur between setting the switch to “on” and
the appearance of the desktop on the monitor screen. During this period, the power-on
self-test runs and Windows NT boots.
Pre-boot problems
The pre-boot sequence of events occurs when you first turn on the computer before
Windows NT loads and begins to run. The problems that occur during pre-boot are
primarily hardware problems. These problems are typically in the Applications
Processor board or in one of the peripherals attached to it: the display, the keyboard,
the mouse, the system drive, or the diskette drive. When these events are complete,
the computer is ready to begin loading Windows NT.
The following table lists some possible problem symptoms that you might see as error
messages that appear during the Power-On Self-Test (POST).
Symptom Possible Cause Solution
Error message indicating failure
in a hard disk drive. Hard disk drive failure Try replacing the hard disk
drive.
Connecting cable failure Check the connecting cable,
replace if necessary.
Error message indicating failure
in diskette drive Diskette drive failure Try replacing the diskette drive.
Connecting cable failure Check the connecting cable,
replace if necessary.
Error message indicating
keyboard problem. Keyboard unplugged Plug in keyboard
Keyboard or connecting cable
defective Replace keyboard
Error message indicating
inability to find boot device or
operating system. Hard disk drive failure Try replacing the hard disk
drive.
Connecting cable failure Check the connecting cable,
replace if necessary.
Error message indicating CMOS
battery low or dead. Battery low or dead Replace Applications Processor
board.
Error message indicating
memory problem. Defective memory. Replace Applications Processor
board.
Error message indicating timer
or clock problems. Component failure in
Applications Processor board Replace Applications Processor
board.
No display Component failure in
Applications Processor board Replace Applications Processor
board.
Monitor or cable failure