YDIT Professional Sharing RGB Matrix Frequently Asked Questions

Source:YDIT 誉德 Release time:2019/8/26 12:02:09 Views:829

 

(Ultra-thin integrated lifter, paperless conference system) RGB matrix switcher is a high-performance broadband matrix switch device specially designed for computer high-resolution RGBHV signal display switching. This series of products can be widely used in large-screen projection display. Engineering, electrification teaching, command and control center, multimedia conference room and other occasions.
Before the installation of the equipment (or components), commissioning, power-on experiments, etc. should be carried out as required. However, it is common for equipment (or components) to be problematic for some reason during the installation process.
1. The power supply is incorrect
The power supply is incorrect. There are several possibilities: the power supply line or the power supply voltage is incorrect, the power is not enough (or the wire diameter of a certain power supply line is not enough, the voltage drop is too large, etc.), and the transmission line of the power supply system is short-circuited, open, and instantaneous. Pressure and so on. In particular, equipment damage due to power supply errors or transient overvoltages may occur.
2, contact is not good
(Ultra-thin integrated lifter, paperless conference system) Because some lines, especially the lines connected to the equipment, are not handled well, causing disconnection, short circuit, poor insulation between wires, miswiring, etc., resulting in equipment (or components) Damage, performance degradation, or damage to the equipment itself, but the phenomenon is reflected in the equipment or components. Since some devices (such as cameras with three variable lenses and pan/tilt) have many connections, which are often not handled well, the above problems occur. In particular, the quality of some connectors is poor, the connection process is not good, and it is a common cause of problems. In this case, the analysis should be carried out in a calm manner based on the fault phenomenon, and it is judged that the fault phenomenon occurs on the several lines due to the problem of which lines are connected. This will narrow the scope of the problem. For example, a camera image with a three-variable lens is normal, but the lens cannot be controlled, so you don't have to check the video output line, just check the lens control line. In addition, the connector, especially the BNC type connector, has a very high requirement for the welding process and the connection process of the video cable. If the processing is not proper, even if there is no problem during the debugging and trial operation, there is a problem after the operation. It is particularly worth noting that the camera with the pan/tilt is very common due to the all-round movement, which leads to the disconnection and breakage of the connection. Therefore, the connection between the equipment and various lines that pay special attention to this situation should meet the requirements for long-term operation.
3. Problems with the device or component itself
In general, quality problems should not arise with carefully selected commercial equipment or components. Even if something goes wrong, it often happens after the system has been delivered and has been running for quite some time.
In addition to the quality problems of the products mentioned above, the most common problems are caused by improper adjustment of the equipment. For example, the adjustment of the camera's back intercept is a very precise and precise job. If you do not adjust it carefully, there will be problems such as poor focus or defocusing during various operations of the three variable lenses. In addition, whether the position of some switches and adjustment knobs on the camera is correct, whether it meets the technical requirements of the system, whether the decoder code switch or other adjustable parts are set correctly will directly affect the normal use of the device itself or affect the normal performance of the entire system.
In addition to the quality problems of the products mentioned above, the most common problems are caused by improper adjustment of the equipment. For example, the adjustment of the camera's back intercept is a very precise and precise job. If you do not adjust it carefully, there will be problems such as poor focus or defocusing during various operations of the three variable lenses. In addition, whether the position of some switches and adjustment knobs on the camera is correct, whether it meets the technical requirements of the system, whether the decoder code switch or other adjustable parts are set correctly will directly affect the normal use of the device itself or affect the normal performance of the entire system. (Ultra-thin integrated lifter, paperless conference system)
4, improper connection
A problem caused by an incorrect connection between a device (or component) and a device (or component). This problem will generally occur in the following aspects:
a. Impedance mismatch. If the video is connected to a monitor with high impedance, there will be no bright images, jittered characters or sometimes characters.
b. The communication interface or communication method is incorrect. This situation often occurs between the control host and a device with a communication control relationship such as a decoder or a control keyboard. This is mostly due to the choice of the control host and the decoder or control keyboard is not a manufacturer's products. In general, the communication methods or transmission control codes used by different manufacturers are different. Therefore, for the host, decoder, control keyboard, etc. should use the same manufacturer's products.
c. The drive capability is insufficient or exceeds the specified number of device connections. For example, the number of the main control keyboard and the sub control keys corresponding to the control host is specified. If the specified quantity is exceeded, the system will not work properly. The power of the decoder PTZ is lower than that of the actual PTZ, so it can't drive the PTZ (ultra-thin integrated lifter, paperless conference system).