Howling (feed-back) is heard, Picture is scrambled, Color is not uniform – Sony CPD-100VS User Manual
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Howling (feed-back) is heard
Decrease the volume with ^ buttons, or turn down the
microphone input volume of the sound board.
Picture is scrambled
-> Check your graphics board manual for the proper monitor setting on
the monitor.
Check this manual and confirm that the graphic mode and the
frequency at which you are trying to operate is supported. Even
within the proper range, some video boards may have a sync pulse
that is too narrow for the monitor to sync correctly.
Color is not uniform
-> Trip the (i) switch once to activate the Auto-degauss cycle*.
Screen image is not centered or sized properly
Adjust picture centering, size, or geometry (rotation/ pincushion) on
the OSD (pages 16,17).
■> Some video modes do not fill the screen to the edge of the monitor.
There is no single answer to solve the problem. There is a tendency for
this problem to occur on higher refresh timings.
Picture is fuzzy
-> Adjust the contrast and brightness on the OSD (pages 13,14). Some
brands of SVGA boards have an excessive video output level which
creates a fuzzy picture at maximum contrast.
Trip the cl) switch once to activate the Auto-degauss cycle*.
Picture bounces or has wavy oscillations
-> Isolate and eliminate any potential sources of elecfric or magnefic
fields. Common causes for this symptom are electric fans, fluorescent
lighting, laser printers, etc.
-> If you have another monitor close to this monitor, increase the
distance between them to reduce interference.
-> Try plugging the monitor into a different AC outlet, preferably on a
different circuit.
Picture appears to be ghosting
Eliminate the use of video extension cables and/or video switch boxes
if this symptom occurs. Excessive cable length or weak connections
can produce this symptom.
A fine horizontal line (wire) is visible
-> This wire stabilizes the vertically striped Aperture Grille. The
Aperture Grille allows more light to pass through to the screen giving
the Trinitron CRT more color and brightness.
Continued to the next pa;^e
Troubleshooting
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