HP SR1520NX, SR1519X, SR1520AN Keyboard and Mouse continued, Power, Symptom, Problem, Solution

Keyboard and Mouse (continued )

Symptom	Problem	Solution
Optical mouse does not	The optical sensor uses the	Place the mouse on a mouse pad or white sheet of paper.
track cursor well.	pattern of the surface to
	track the position of the
	cursor. Reflective surfaces,
	grooved surfaces, glass, or
	other see-through surfaces
	inhibit the ability of the
	sensor to track the cursor.
	Mouse sensor is dirty.	Wipe the light sensor lens on the bottom of the mouse with a
		lint-free cloth (not paper).
Mouse cursor moves	The wireless mouse moves	Adjust the mouse speed in Windows.
too fast.	the cursor more quickly than
	a standard mouse.

Power

Symptom	Problem	Solution
PC will not turn on or start.	PC is not securely connected	Ensure that cables connecting the PC to the external power
	to an external power source.	source are plugged in properly.
	Green power supply light on	When the cables connecting the PC to the external power
	back of PC is out.	source are plugged in properly and the wall outlet is
		functioning, the green power supply light should be on; if the
		light is not on, refer to the Warranty and Support Guide to
		contact Support.
	Monitor is not connected or	Connect the monitor to the PC, plug it in, and turn it on.
	is not on.
	Line voltage selection switch	Set the line voltage selection switch to the correct setting for
	is not in the proper position	your country/region, or refer to the Warranty and Support
	for your country/region	Guide to contact Support.
	(115V￿/230V￿).
	Wall outlet is defective.	Test the outlet by connecting a different electrical device to
		the outlet.
	Wrong memory modules	Reinstall the old memory to return your PC to its original state.
	were used in an upgrade, or	Refer to the Upgrading and Servicing Guide for instructions.
	memory modules were
	installed in the wrong
	location.
	Hard disk drive is damaged.	Press the Help ? button on the keyboard to open the Help
		and Support Center, or refer to the Warranty and Support
		Guide to contact Support for replacement details.
	After an upgrade or repair,	Reseat drive power, data, and power supply cables. See the
	the drive power, data, or	Upgrading and Servicing Guide for instructions.
	power supply cables may
	not be properly connected.

PC Troubleshooting and System Recovery Guide 15