Troubleshooting - NEC MultiSync LCD1700NX A Service Manual

TROUBLESHOOTING

Before sending your LCD monitor for servicing, please check the troubleshooting list
below to see if you can self-diagnose the problem.
Problems Current Status
No Picture LED ON
LED OFF
LED displays
amber color
Abnormal Unstable Picture
Picture
Display is missing, • Using OSD, adjust EXPANSION, H.SIZE,
center shift, or too
small or too large
in display size
MultiSync LCD1700NX
Remedy
• Using OSD, adjust brightness and contrast to
maximum or reset to their default settings.
• Check the signal input, "DVI" or "D-SUB".
• Check the power switch.
• Check if AC power cord is properly connected
to the AC adapter.
• Check if video signal cable is properly connected
at the back of monitor.
• Check if the power of computer system is ON.
• Check if the specification of graphics adapter
and monitor is in compliance which may be
causing the input signal frequency mismatch.
FINE, LEFT/RIGHT and DOWN/UP with
non-standard signals.
• Using OSD, in case of missing full-screen image,
please select other resolution or other vertical
refresh timing.
• Wait for a few seconds after adjusting the size
of the image before changing or disconnecting
the signal cable or powering OFF the monitor.
1-15
13