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 | |
What is this chart used for
A． To determine a problem with a TV
B． To pick a TV program
C． To compare prices
D． To wrap packages