VGA extender can transmit VGA signal 0--300 meters, it is designed for network flat panel display and large-screen curtain wall display advertising engineering, industrial automation control, medical equipment, security monitoring, multimedia teaching and other display system engineering high-quality video signal long-distance transmission The needs of the professional design of the VGA signal conversion, distribution, driving, receiving and restoring functions of a signal transmission system.
The VGA extender often encounters image problems during the use of the monitoring system. For example, the clarity is not enough, there are tailing, blur, color cast, etc. What do many people think is that there is a problem with the VGA extender? Actually not. . Below, Hua Xincheng gives specific solutions to common problems. In general, after the following processing, satisfactory solutions will be obtained.
1, the image has a color but the flashing cause of the flower failure: Generally, the adjustment switch of the extender is not adjusted well. (Different display, the best state adjustment position for different resolution is different, this is why there is a reason to adjust the switch )
Solution: Use a small screwdriver equipped to slowly adjust the adjustment knob on the far end of the extender to a satisfactory image state.
2. There are several common causes of smearing in the image font; 1. The crystal head is not pressed well, and the contact resistance is large 2. The remote adjustment switch is not adjusted well. 3. The network cable quality is poor or the network cable distance exceeds the used distance and distance. The far distance and the general solution of network cable quality: adjust the remote knob, re-press the crystal head, use a good quality crystal head, to ensure good contact. Use a good brand cable (super 5 cable is better), the transmission distance is longer Please use some domestic famous brand cable, foreign brands are more expensive.
3, the screen serious color cast, full red, green, blue, short tail length, adjust the switch can not solve the cause of the problem: VGA interface part has a bad contact, poor contact with the crystal head, incorrect use of shielded cable and crystal The problem of the head.
Solution: Check the VGA extender interface or replace the VGA cable, shake the crystal head, check for bad contact and test whether all pass, heavy pressure or redo the crystal head. Distance short tail length is generally shielded crystal head and The network cable is not properly grounded, the solution is to perform grounding, and the shielded crystal head is used. 4. There is no image display at the remote end. The indicator light is off. Cause: Generally speaking, the VGA interface is not properly connected and the network cable and crystal head are not properly connected. Solution: Check the VGA port and cable section to ensure unobstructed and good contact. Check whether the cable and crystal head are connected and in good contact.
5, the image has a diagonal pattern, the cause of the striped fault: generally there is a strong electromagnetic interference nearby.
Solution: The wiring disturbs the interference source, or uses the shielded network cable and the crystal head 6. There is also a fault that may be caused by the power adapter of the VGA extender. Some of the power supply is broken or not plugged in, resulting in no VGA. Power supply, some people will think bad, in fact, a good power can be changed.
After the above steps, the common problems can be solved. Note: Not all VGA extenders have adjustment knobs. Generally, products with longer extension distances have adjustment knobs. For details, see the models and specifications of related products.
The VGA extender often encounters image problems during the use of the monitoring system. For example, the clarity is not enough, there are tailing, blur, color cast, etc. What do many people think is that there is a problem with the VGA extender? Actually not. . Below, Hua Xincheng gives specific solutions to common problems. In general, after the following processing, satisfactory solutions will be obtained.
1, the image has a color but the flashing cause of the flower failure: Generally, the adjustment switch of the extender is not adjusted well. (Different display, the best state adjustment position for different resolution is different, this is why there is a reason to adjust the switch )
Solution: Use a small screwdriver equipped to slowly adjust the adjustment knob on the far end of the extender to a satisfactory image state.
2. There are several common causes of smearing in the image font; 1. The crystal head is not pressed well, and the contact resistance is large 2. The remote adjustment switch is not adjusted well. 3. The network cable quality is poor or the network cable distance exceeds the used distance and distance. The far distance and the general solution of network cable quality: adjust the remote knob, re-press the crystal head, use a good quality crystal head, to ensure good contact. Use a good brand cable (super 5 cable is better), the transmission distance is longer Please use some domestic famous brand cable, foreign brands are more expensive.
3, the screen serious color cast, full red, green, blue, short tail length, adjust the switch can not solve the cause of the problem: VGA interface part has a bad contact, poor contact with the crystal head, incorrect use of shielded cable and crystal The problem of the head.
Solution: Check the VGA extender interface or replace the VGA cable, shake the crystal head, check for bad contact and test whether all pass, heavy pressure or redo the crystal head. Distance short tail length is generally shielded crystal head and The network cable is not properly grounded, the solution is to perform grounding, and the shielded crystal head is used. 4. There is no image display at the remote end. The indicator light is off. Cause: Generally speaking, the VGA interface is not properly connected and the network cable and crystal head are not properly connected. Solution: Check the VGA port and cable section to ensure unobstructed and good contact. Check whether the cable and crystal head are connected and in good contact.
5, the image has a diagonal pattern, the cause of the striped fault: generally there is a strong electromagnetic interference nearby.
Solution: The wiring disturbs the interference source, or uses the shielded network cable and the crystal head 6. There is also a fault that may be caused by the power adapter of the VGA extender. Some of the power supply is broken or not plugged in, resulting in no VGA. Power supply, some people will think bad, in fact, a good power can be changed.
After the above steps, the common problems can be solved. Note: Not all VGA extenders have adjustment knobs. Generally, products with longer extension distances have adjustment knobs. For details, see the models and specifications of related products.
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