Manufacturers that provide high-quality label nameplates OEM services.
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Manufacturers that provide high-quality label nameplates OEM services.
It is strictly forbidden to plug or unplug the cable when the power is on. The signal source and the projector's power supply should be grounded at the same time.
This is because when the projector and the signal source (such as a PC) are connected to different power sources, there may be a higher potential difference between the two neutral wires. When the user plugs and unplugs the signal line or other circuits with power on, ignition will occur between the plugs and sockets, damaging the signal input circuit, and causing serious consequences.
When the projector is in use, some users require a relatively large distance between the signal source and the projector. For example, the ceiling-mounted projector is generally more than 15 meters away from the signal source. At this time, the corresponding signal cable must be extended. As a result, the signal input to the projector will be attenuated by the projector, and the projected picture will appear blurry, tailing or even jitter. This is not a malfunction of the projector, and it will not damage the machine. The best way to solve this problem is to install a signal amplifier after the signal source, which can ensure the signal transmission over 20 meters without any problem.
The above uses LCD projectors as an example to introduce some key points in the use of projectors. DLP projectors are similar, but can work continuously for longer than LCD projectors, while CRT projectors require relatively little maintenance. They are basically not moved, so The failure rate is relatively low. However, no matter what kind of projector fails, the user is not allowed to turn it on and inspect it without authorization. There are no user-maintainable parts in the machine, and the high-voltage components in the projector may cause serious personal injury. Therefore, when buying, you must not only choose the good product to find the good price, but also choose the good merchant, figure out the maintenance service phone number, and consult the professional if there is a problem, so that you will not have any worries.
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We (Alice) are a professional manufacturer of furniture nameplates, focusing on providing supporting services for the furniture industry, machinery industry, electronic and electrical industry and other industries, mainly producing zinc alloy, aluminum, stainless steel, copper, brass, pvc, etc. Label.
Contact us E-mail: sales03@alicelogo.com
Alice has dedicated to precise product since it was established in 1998, especially focus on furniture and electronic appliances field as a tendency.
