HP dc7700 Solving Display Problems, Solving Display Problems

Troubleshooting Without Diagnostics

Solving Display Problems

Solving Display Problems

Problem Cause Solution

Blank screen (no video).

Monitor is not turned on and monitor light is not on.

Turn on the monitor and check that the monitor light is on.

Bad monitor.	Try a different monitor.
The cable connections	Check the cable connections from
are not correct.	the monitor to the computer and to
	the electrical outlet.
Screen blanking utility	Press any key or click the mouse
installed or energy	button and, if set, type your
saver features enabled.	password.
System ROM is	Reflash the system ROM with the
corrupted; system is	latest BIOS image.
running in Boot Block
Emergency Recovery
Mode (indicated by
eight red blinks from the
power LED and eight
simultaneous beeps).
Fixed-sync monitor will	Ensure that the monitor can accept
not sync at the	the same horizontal scan rate as the
resolution chosen.	resolution chosen.
Computer is in	Press the power button to resume
standby mode.	from standby mode.
	Ä When attempting to resume
	from standby mode, do
	not hold down the power
	button for more than four
	seconds. Otherwise, the
	computer will shut down
	and you will lose any
	unsaved data.
Monitor cable plugged	If the computer system has both
into the wrong	an integrated graphics connector
connector.	and an add-in graphics card
	connector, plug the monitor cable
	into the graphics card connector on
	the back of the computer.

Service Reference Guide, dc7700 433612-001 D–13