Coby TF-TV2609 Operating Instructions Manual page 39

Troubleshooting Guide
Screen
Problems
Poor picture
Black picture
Lined and flickering picture.
Disfunctioning channels.
Picture with white and
black dots.
Only certain channels are in
black and white
The Sub-Screen is black.
Automatic turn-on is inactive.
Channel
Problems
The channels are not
functioning.
A limited number of channels
are not functioning.
Only UHF (14 ~ 69) Channels
are unavailable.
Monitor
Problems
The PC Screen continually
appears and disappears.
A "There is no signal"
message appears.
The screen is unclear
and blurry.
Is the power cord unplugged? Make sure the power cable is plugged
■
in correctly, then press the power of the remote control.
Check if external input mode is selected
■
Press [external input selection] and select TV
■
Try to use the "Fine Tune" channel adjustment.
■
Avoid using cordless phones, hair dryers or electrical drills near the TV.
■
Check if the channel has been selected correctly.
■
Try changing the position of the antenna.
■
Check if your antenna is damaged or any connections are broken.
■
Replace your antenna.
■
Check if the program is being broadcast in "black and white".
■
Check the color hue or contrast settings.
■
Check the power of the external device connected to the TV.
■
If the power cord is disconnected, the screen will be black.
■
When turning off your TV, you need to use the remote control or
■
press the power button on the TV. (If you pull the plug on the TV,
the settings will be deleted.)
Connect the antenna connectors again.
■
Set to memorize channels in the automatic channel setting again.
■
Query the particular broadcasting station.
■
Change the location or direction of the antenna.
■
Try to select a few channels using numbers and memorize them
■
using the add/delete button.
Query the broadcasting station.
■
Check if the antenna is able to receive UHF.
■
Check the connection between the TV and the computer and see
■
if the connector is locked.
This happens if the signal from the video card is too much for the
■
maximum resolution or frequency of the TV.
Try to set the maximum resolution or frequency for the TV.
See if the PC is in power save mode.
■
(This is deactivated when any key is pressed or the mouse is moved)
Change the frequency and phase adjustment.
■
Change the Resolution and frequency to the standard limit.
■
(1024x768 @ 60Hz)
Solve
Solve
Solve
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