SONIQ QV210C - Manual (Page 22)

.21.
Guide to trouble-shooting
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
No picture or sound
No picture but the sound is OK
Picture is shown but the sound is not normal
Normal picture but no sound
Only picture with snow and noise
No color
Small dots, lines or strips on the picture
Ghost
Color stain
Afterglow when turned off
Inspection
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?
Adjust brightness and contrast.
Press the sound system button to select other sound system
Press the V (+) or Mute button several times.
Adjust the indoor or outdoor antenna.
Connect a proper antenna, and readjust the channel tuning with the
Fine Tune.
Is a color program being broadcasted?
Are the hue and system correct?
Readjust the channel tuning with the Fine Tune.
They are usually caused by interference from cars, neon lights and
electrical hair dryers.
Adjust the antenna to minimize the interference.
Usually caused by reflection from hills or high buildings nearby.
Change the antenna direction or height. Better use outdoor antenna
with good directivity
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.
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.