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Returnstar Interactive Tech IQTouchScreen Manual de usuario Pagina 37

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Returnstar Interactive Technology Group Co., Ltd.
37
Chapter 9 Simple Repair
Common faults analysis below can be reference for you when you meet same
occasions.
Change another channel, if ok,
it should be regional issue.
Check if the antenna well
connected.
Check if the antenna
destroyed.
Check if the antenna is for
indoor use.
Probably jamming like circuit
surrounding.
Adjust the fine tuning.
Adjust the brightness.
Adjust the contrastratio.
Check if there is local
broadcasting signal with color.
Adjust the color.
Check if the system is well set
up.
Check if the power is on.
Check if there is battery in the
controller.
No image, no sound
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Poor sound, normal image
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Bad image, normal sound
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Poor signal
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Fuzzy image
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Doubled image
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Jamming image
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Image distortion
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Poor program signal
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Horizontal fringe in image
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Image vertical rolling
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Bad color
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No color
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Operation of the remote
controller
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Remote controller invalid
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Image larger than the screen
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The Fault Phenomenon
Problem Solving
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