SONIQ QV290 - Manual (Page 16)

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The following phenomena are not necessary faults, and the following checks should be
performed first before asking a specialized person for repair. If the cause of fault cannot be
found and corrected with this guideline, remove the power plug from the socket and have a
specialized person to repair it.
Symptom Inspection
No picture nor sound
Is the fuse or breaker in the house OK?
Is the power supply plug inserted? Is it in good contact?
Is the system of the TV correct?
No picture but the
sound is OK
Adjust brightness and contrast.
Normal picture but no
sound
Press the V (+) or Mute button several times.
Only picture with snow
and noise
Adjust the indoor or outdoor antenna.
Connect a proper antenna
No color
Is a color program being broadcasted?
Are the hue and system correct?
Small dots, lines or
strips on the picture
They are usually caused by interference from cars, neon
lights and electrical hair dryers.
Adjust the antenna to minimize the interference.
Ghost
Usually caused by reflection from hills or high buildings
nearby. Change the antenna direction or height. Better use
outdoor antenna with good directivity
Color stain
If color stain appears after changing the angle of the TV
set, turn its main power switch off and wait for at least 15
minutes before turning it on again.
Afterglow when turned
off
It is normal to have an afterglow on the screen for 1-3
seconds after the power to the TV set is cut off, and it will
not affect the CRT.
Note: The design and structure is subject to change without notice.
Do not attempt to repair or refit the machine by yourself, or it may cause a fire and
there is high voltage hazard inside.
Guide to simple trouble-shooting
Miscellany