Coby TFTV791 Instruction Manual page 32

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