Especially the trough bridge and tray tray, what is the biggest difference between the two? Is there a difference in appearance? More
The trough is closed; the tray is the bottom of the bridge there are many waist-shaped hole to facilitate the heat; ladder of the bottom like a staircase, the side of the baffle, dusty places with ladder, not fouling. The trough and tray are different from the bottom, with holes and no holes. Trough is not conducive to heat, tray heat slightly better. The trough cable tray is a fully enclosed cable tray that is best suited for laying computer cables, communication cables, thermocouple cables and other high-sensitivity control cables, etc. It controls cable interference and heavy-duty cables Protection has a good effect. Cable tray (cable tray) is the tray or staircase straight line, bending, components and arm (arm bracket), hanger, etc. constitute a close with the cable supporting the rigid structure of the system. Tray-type bridge for the scope of tray-type cable tray is the oil, chemical, light industry, television, telecommunications and other aspects of the most widely used. It has a light weight, load, handsome in appearance, simple structure, easy installation and so on. It is suitable for the installation of power cables, but also suitable for control cable laying.
To see if there is no even inserted in the good, is not loose
TV signals are 4: . the TV is 16:10. Both sides must have black side, or put the screen elongated.
. if the TV screen appears set-top box to start the image and then prompt "no signal" case, this phenomenon proves that your set-top box and the TV between the audio and video lines (red, yellow, white) connection is basically no problem, but TV radio frequency input signal line (Note: not the red and yellow that three) did not receive the set-top box RF input port, or TV RF input signal line and the wall is not connected to the terminal box, or in your room there are other places where the road. . if the TV screen does not appear set-top box to start the image, then just the blue screen and no text prompts, then that is your TV channel settings there is a problem, please use the TV remote control by source or AV / TV key, the TV from the mold helium chicken meal berry wine every time to change the video channel can be converted to video channels. If the above method still can not be resolved, you must call the local cable TV customer service phone, ask the professional maintenance staff to help. Prompt, no need and do not have to re-search.
