HP PE4240N User Manual page 69

Symptom
I get a poor picture with video
signal input.
I get a poor picture with RGB
signal input.
The tint is poor or colors are weak. Are the tint and colors properly
Nothing appears on the screen
and I have an external device
controlling the TV.
Part of the picture is cut off or the
picture is not centered.
The picture image is too large or
too small.
The picture is unstable.
The Power/standby indicator on
the front of the TV blinks in red.
The Power/standby indicator on
the front of the TV blinks rapidly
in red.
Checks
Improper control setting.
Local interference.
Cable interconnections.
Input impedance is not correct level.
Improper control setting.
Incorrect 15-pin connector
pin-connections.
adjusted?
Is the external device or computer power
turned on?
Is a source connected?
Is the power management function in the
standby or off mode?
Is the position adjustment appropriate?
Is the screen size adjustment
appropriate?
Is the external device or computer
resolution setting appropriate?
The horizontal or vertical sync signal is
not present when the Intelligent Power
Manager control is on.
Did the TV turn off 5 seconds after you
turned it on?
Remedy
Adjust picture control as needed.
Try another location for the TV.
Be sure all connections are secure.
Adjust picture controls as needed.
Check pin assignments and connections.
Adjust picture controls as needed.
Check pin assignments and connections.
Turn on the external device or computer power.
Connect source to the TV.
Operate the external device or computer (move
the mouse, or press a key).
Adjust the screen settings.
Press the Aspect button on the remote control
and adjust properly.
Set to the proper resolution.
Check the input signal.
Turn off the TV immediately and contact your
dealer or authorized service center. The power
supply circuit, the plasma display panel, or the
temperature sensor has been damaged.
Troubleshooting
65