| NO. |
Case(condition) |
Possible causes |
Countermeasures |
| 1 |
No picture and sound after the power is on. |
1.Check power connection.
2.Misuse the pole.
|
1.Check power input.
2.Correct the pole.
|
| 2 |
Snowy and unclear picture,or noisy sound. |
1.NO antenna connection.
2.Signal input wire open.
3.Poor local signal.
4.Not proper tuning.
|
1.Check antenna input, change into outdoor aerial of CATV cable.
2.Change manual tune or perform fine tuning to the proper frequency.
|
| 3 |
Level rolling picture , shaking of the tuning line. |
1.Input voltage lower than 11V or city voltages lower than AC 200V.
2.Not enough adapter output power consumption.
|
1.Adjust the input power DC voltage to the range of 12-15V.
2.Change adapter. of power.
|
| 4 |
No clear image,shaky picture and multiple figure. |
Poor signal or no proper antenna length & angle, no proper direction of outdoor antenna. |
Change into outdoor aerial and readjust of had better use CATV cable. |
| 5 |
Black & white picture, strong contrast. |
Color saturation, contrast and brightness not proper. |
Readjust. |
6 |
Interference with net shape. |
Interference from outside: Cars/Motorcycles, radiophone, electric welding. |
Improve the receiving condition. |
7 |
Bright and blank screen No image display. |
Low input voltage of the external power supply; Low power consumption to cause the machine working not properly. |
Check the extermal power if suit for the requirement for the unit. |
AllRight
Reserved.