Sony TRINITRON PVM-20N1E - Troubleshooting

Troubleshooting
This section may help you isolate the problem. Should
the problem persist, unplug the unit and contact your
Sony dealer or local authorized Sony service facility.
Symptom
Possible causes and remedies
If noise is generated on the screen when the color system
of the input signal is changed in AUTO mode selected on
the COLOR SELECT menu
It takes approximately two seconds to automatically detect the
color system. After detecting the color system, the picture will
be stable.
If noise is generated on the screen when the NTSC
COMB mode is selected on the COLOR SELECT menu
When an unstable input signal may generate noise seen on the
screen. Select the NTSC mode on the COLOR SELECT menu.
If the horizontal lines will intermittently appear on the
upper screen, wItib 16:9 aspect ratio is selected on the
ASPECT RATIO menu
This is for beam current feedback. These horizontal liens
disappear when the white balance is stabilized.
If colors are not accurately reproduced The monitor input signal is deviated from the color system
specifications (i.e. signals from VCRs).
Proceed as follows to correct this phenomenon.
1 Confirm the color system of the input signal.
2 Select the same color system as that of the input signal on
the COLOR SELECT menu.
If the problem remains unsolved after corresponding color
system is selected, briefly turn OFF the power, then turn ON
the monitor again.
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