单项选择题
Questions 169-171 refer to the
following manual.
|
TROUBLESHOOTING
If your TV does not work，check the following
points： |
|
PICTURE |
SOUHD |
POSSIBLE CAUSES |
WHAT TO DO |
|
No picture |
Noise |
Not properly tuned |
Adjust tuning |
|
Picture visible |
No sound |
·Volume control dialturned too low
·Earphones inserted |
·Turn up volume
·Disconnectearphones |
|
Picture all white |
Sound heard |
Brightness control not set correctly |
Adjust brightness control |
|
Picture dark or blurred |
Sound heard |
Brightness control not set correctly |
Adjust brightness
control | |
When should the tuning be adjusted
A． When there is no picture and no sound
B． When there is a picture but no sound
C． When the picture is white
D． When there is noise but no picture