HP PE4240N 42 inch manual Operate the external device or computer move

Symptom	Checks	Remedy
I get a poor picture with video	Improper control setting.	Adjust picture control as needed.
signal input.	Local interference.	Try another location for the TV.
	Cable interconnections.	Be sure all connections are secure.
	Input impedance is not correct level.
I get a poor picture with RGB	Improper control setting.	Adjust picture controls as needed.
signal input.	Incorrect 15-pin connector	Check pin assignments and connections.
	pin-connections.
The tint is poor or colors are weak.	Are the tint and colors properly	Adjust picture controls as needed.
	adjusted?	Check pin assignments and connections.
Nothing appears on the screen	Is the external device or computer power	Turn on the external device or computer power.
and I have an external device	turned on?
controlling the TV.
	Is a source connected?	Connect source to the TV.
	Is the power management function in the	Operate the external device or computer (move
	standby or off mode?	the mouse, or press a key).
Part of the picture is cut off or the	Is the position adjustment appropriate?	Adjust the screen settings.
picture is not centered.
The picture image is too large or	Is the screen size adjustment	Press the Aspect button on the remote control
too small.	appropriate?	and adjust properly.
The picture is unstable.	Is the external device or computer	Set to the proper resolution.
	resolution setting appropriate?
The Power/standby indicator on	The horizontal or vertical sync signal is	Check the input signal.
the front of the TV blinks in red.	not present when the Intelligent Power
	Manager control is on.
The Power/standby indicator on	Did the TV turn off 5 seconds after you	Turn off the TV immediately and contact your
the front of the TV blinks rapidly	turned it on?	dealer or authorized service center. The power
in red.		supply circuit, the plasma display panel, or the
		temperature sensor has been damaged.

Troubleshooting 65