What are the common faults and solutions of building advertising machines?

Before cleaning the screen of this machine, please unplug the power cord, ensure that the advertising machine is in a power-off state, and gently wipe it with a clean, wireless soft cloth. Don't spray directly on the screen. Please do not expose the product to rain and sunlight, so as not to affect the normal use of the product. Please don't block the ventilation holes and sound holes on the advertising machine shell. Do not place the advertising machine near the radiator, heat source or any other equipment that may affect the normal ventilation. Please do not disassemble or repair the advertising machine by yourself to avoid high voltage electric shock or other dangers. Ask professional maintenance personnel to complete all maintenance work. Because advertising machines are mostly used in public places, unstable voltage may cause equipment damage. It is recommended to use a stable commercial power supply, and never use the same power supply as elevator power supply and other high-power equipment. For example, in places where the voltage is often unstable, such as subway stations, please be sure to use the corresponding voltage stabilizing equipment to stabilize the voltage, otherwise it will easily lead to unstable operation of the advertising machine and even burn the advertising machine.

Please read this manual carefully before inserting and pulling out the CF card. If the CF card can't be inserted, don't insert it forcibly to avoid damaging the CF card pin. When this problem occurs, you need to check whether it is inserted backwards. If the unit does not work for a long time, please turn on the anti-theft lock and turn off the 220V power supply. Common faults and solutions, Q: There will be a screen when the board is opened. Answer: Enter the factory menu to adjust TI mode and 6-bit and 8-bit. If it is still abnormal, please check whether the screen line is correct (whether the LVDS selection pin of the screen selects the normal LVDS mode). Q: Too few scrolling subtitles are displayed abnormally. A: The scrolling subtitle file must have at least 40 characters. If it is not enough, please add spaces.