GE GFK-2251 manual Troubleshooting, Powerup, Display, Symptom Possible Causes Solution

7

Troubleshooting

Powerup

Symptom	Possible Causes	Solution
Computer does not power up.	Power not on (PWR indicator is	Make sure that computer is
	not lit or display completely	plugged in. Make sure that
	dark).	power source is functioning
		properly.
Display is blank (PWR indicator	See “Display” topic in this	See “Display” topic in this
is lighted).	Chapter	Chapter
Non-System disk or disk	Disk in floppy disk drive.	Remove floppy disk and then
error message displayed.		reboot or cycle power .
Safe Recovery Error message	Occurs on initial power up if the	The computer will power up
displayed.	unit is accidentally turned off	normally.
	without first shutting down the
	Windows software.
Memory count during powerup	Optional DIMM is installed	Make sure that the appropriate
self-test is incorrect.	incorrectly or is incompatible	memory is installed correctly.
	with the Panel C industrial
	computer CPU.
CMOS checksum error —	CMOS battery failure.	Replace the battery. For more
Defaults loaded		information, see “CMOS
CMOS battery failed		Checksum Error” topic in this
message displayed.		chapter.
A screen appears just after	The F2 key has been	Cycle power again. The
powerup, or just after reset,	accidentally pressed.	computer will power up
which has the title “CMOS		normally.
Setup Utility.”
The computer has reset even	The CTRL-ALT-DELkeys were	This should never be done,
though the power was not	pressed twice at the same	unless you are attempting to
interrupted.	time.	reset the computer.
A:> appears instead of	A system floppy disk is	Remove disk and cycle power.
software.	inserted.

Display

Symptom	Possible Causes	Solution
Characters are dim.	Computer screen is in direct	Change lighting.
	light.
Display is blank (PWR indicator	Screen temperature is outside	If computer is in direct sunlight,
is lit).	operating range.	move it and allow it to cool.
	Computer is set up for invalid	Reboot. Select VGA Mode
	video mode.
	Screen saver is active.	Touch a key on the keypad.

7-2 Panel C Industrial Computer Hardware User's Manual – May 2003 GFK-2251