COBY electronic TF-TV3209 - Manual (Page 39)

39
ENGLISH
Troubleshooting Guide
Poor picture
■ Is the power cord unplugged? Make sure the power cable is plugged
in correctly, then press the power of the remote control.
Black picture
■ Check if external input mode is selected
■ Press [external input selection] and select TV
Lined and flickering picture.
■ Try to use the "Fine Tune" channel adjustment.
■ Avoid using cordless phones, hair dryers or electrical drills near the TV.
Disfunctioning channels.
■ Check if the channel has been selected correctly.
■ Try changing the position of the antenna.
Picture with white and
black dots. ■ Check if your antenna is damaged or any connections are broken.
■ Replace your antenna.
Only certain channels are in
black and white ■ Check if the program is being broadcast in “black and white”.
■ Check the color hue or contrast settings.
The Sub-Screen is black.
■ Check the power of the external device connected to the TV.
■ If the power cord is disconnected, the screen will be black.
Automatic turn-on is inactive.
■ 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.)
Problems Solve
Screen
The channels are not
functioning.
■ Connect the antenna connectors again.
■ Set to memorize channels in the automatic channel setting again.
■ Query the particular broadcasting station.
A limited number of channels
are not functioning.
■ 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.
Only UHF (14 ~ 69) Channels
are unavailable.
■ Check if the antenna is able to receive UHF.
Problems Solve
Channel
The PC Screen continually
appears and disappears.
■ Check the connection between the TV and the computer and see
if the connector is locked.
A “There is no signal”
message appears.
■ 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)
The screen is unclear
and blurry.
■ Change the frequency and phase adjustment.
■ Change the Resolution and frequency to the standard limit.
(1024x768 @ 60Hz)
Problems Solve
Monitor