IBM 72H9623 Computer Monitor User Manual


 
A17
Troubleshooting
Any horizontal noise appearing in any image or characters are not
clearly portrayed.
The input signal data has not been optimized for the current operating
mode. (Adjust the CLOCK PHASE by using the OSD function.)
Check Signal Cable message.
The signal cable is not connected.
Outside Range Limits message appears.
Picture is blank.
The frequency of the signal from the video card is outside the operating
range of the monitor.
* Use the graphics board's utility software to change the frequency setting (Refer to
the manual for graphics board).
* You can change the setup to the supported resolution using the Windows 95/98
Safety Mode (Press the F8 key during booting the system.) or see User Manual for
equivalent messages in other relevant Operating Systems.
The power LED is illuminated amber.
Display power management mode.
There is no active signal coming from the PC.
The signal cable is not fastened securely.
Check the computer power and graphics adapter configuration.
The image on the SCREEN is not centered.
Image adjustment has not been performed for current mode. Select H
position, V position and Clock via OSD and adjust to desired position.
The monitor does not enter the power saving off mode (Amber).
Computer video signal is not VESA DPMS standard. Either the PC or the
video controller card is not using the VESA DPMS power management
function.
Noise in 50% Grey Background might sometimes be difficult to
totally eliminate using Clock & Clock Phase Controls.
Slight variations in timing from system units graphics sub-system. [Via
Desktop change background pattern to solid colour].