Coby TFTV791 - Power and Picture Troubleshooting; Picture Quality and Sound Issues

Page 32 Troubleshooting & Support
English
There is no power to the device.
Ensure that the Power Switch on the main unit is physically set to the ON position. 
Ensure that the AC adapter cord is securely connected to the player and the proper wall outlet. 
There is no picture.
Ensure that the TV set has been powered on and is set to the correct mode (TV or AV INPUT). 
The current channel may not be in reception range. Try repositioning or changing the antenna, or tune 
to a dierent channel.
Ensure that all connections are secure and correct, and that the cables are not damaged. 
The picture is noisy or distorted.
If an antenna is in use, try repositioning it for better reception. 
Ensure that all connections are secure and correct, and that the cables are not damaged. 
The picture color is distorted.
Poor reception will adversely aect the display image. Try repositioning the antenna, or tune to a dif- 
ferent channel.
Ensure that all connections are secure and correct, and that the cables are not damaged. 