HP PE4240N - Manual (Page 69)

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