Precautions for connecting using the HDMI port
With the replacement of HD equipment, LCD TV, Blu-ray DVD, HD projector and other equipment are equipped with HDMI interface, as we all know, in the past to connect the equipment needs more cables, the separation layout is also very troublesome, now as long as through an HDMI cable can achieve image and sound synchronous transmission, easy connection, picture quality clearer and fuller, The sound is more authentic and natural. So what are the precautions when we use the HDMI interface to connect?
Short distance transmission with a cheap but affordable HDMI cable can:
For many of our home users, the device that provides the input source, such as the projector, is not too far away, generally one to two meters, so we generally choose 1.5 meters of HDMI cable. In the choice of HDMI cable, below 5 meters can be considered to be short distance transmission, the choice of HDMI cable is relatively simple, an important factor affecting the quality of the wire is the thickness of the wire, can be divided into 24 lines, 26 lines, 28 lines and 30 lines, the smaller the number, the thicker the diameter of the wire, the better the effect. For lines below five meters, choose 28 lines and 30 lines, 1.5 meters do not exceed 80 yuan, 5 meters do not exceed 150 yuan.
HDMI does not support hot swappable:
One of the biggest advantages of the HDMI interface is easy to use, as long as a cable, audio and video can be fully transmitted, and the design of the interface is very convenient to plug and plug, do not need to press any button can be easily plugged and unplugged. However, this brings another problem, if directly inserted and removed in the boot state, it is easy to cause the HDMI interface chip to be burned. Therefore, when unplugging the HDMI cable, do not hot-plug it, and you must turn off the projector and related connected devices before unplugging it.
HDMI wiring, carefully buried under the wall:
In order to be beautiful and convenient for later use, many friends want to bury the HDMI cable under the wall in advance when decorating, and this practice must be careful.
Long-distance transmission has strict requirements for the wire:
If it is long-distance transmission, the requirements for HDMI cables are very strict.
