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Common fault diagnosis techniques and maintenance practices of LCD Advertising players
- ● Coloful screen (distortion, red screen) fault causes:
1, Ping-line may be broken, the replacement screen line
2, motherboard bad, replace the motherboard
● Blue Screen phenomenon of failure causes:
1, according to the remote control of the "POWER" button to make it restart.
2, such as frequent, and continued a long time, please contact us.
● Non-Reader
Cause of the malfunction:
1.CF card connector pins appear bent, to clamp the dial straight
2. Replace the motherboard
● turn off automatically after a
Cause of the malfunction:
1. First, the menu is set to determine whether the timer is turned off
2. The machine short-circuit phenomena can replace the motherboard
3. Inverter is not working properly, replace the high-pressure section
● black (no picture no sound) cause of the malfunction:
1, the machine did not power to check whether the power plug, power switch inside the machine has open, press POWER button on the remote control
2, in the case of the electricity is still not boot, no work can be judged as the replacement motherboard motherboard
● black (with sound without images) fault causes:
Screen backlight did not work, there are three kinds of possibilities:
1, high-pressure section and the screen or the motherboard connection off, you can plug in connection
2, high pressure of the bad, the replacement of high-pressure
3, board bad, replace the motherboard
● white screen (no picture no sound)
Cause of the malfunction: the motherboard or bad, replace the motherboard
● white screen (with sound without images)
Cause of the malfunction: Ping-line not plugged and re-plug off (note the screen line, surface, do not insert anti-)
● black and white (off white screen)
Cause of the malfunction: the motherboard or bad, replace the motherboard
● remote control not working
Cause of the malfunction:
1. Remote Control without electricity or bad
2. Remote control head or a bad motherboard or bad, to replace
● timer expired password is lost can not enter a password, display an error, please replace the motherboard
● screen serious flicker phenomenon, its causes are
(1) magnetic interference
(2) Supply voltage stability
(3) monitor, graphics card driver problem
● How to clean shells
The use of cotton dip fresh water cleaning, do not use any cleaning agent, so that the factory would lose their unique shell luster.
● Why LCD to switch on the screen appeared on the interference pattern miscellaneous?
This is to show the card caused by signal interference, is a normal phenomenon. Can be automatically or manually adjust the phase to solve the
This problem.
● How to clean LCD screens
Clean LCD screen, as far as possible not to use too heavy a damp cloth with water in order to avoid moisture into the LCD screen, which led to internal short-circuit fault and so on. Recommended glasses cloth, lens paper on the LCD screen, soft material to wipe, so that moisture can be avoided and access to the internal LCD, but also will not scratch the screen.
● synchronize two machines can not play for two reasons
(1) error in 0.5 seconds or less, is a normal phenomenon;
(1) a period (such as 8 minutes) can synchronize the start of play, slowly bigger error, check whether the wear and tear over the disc, if requested to replace a new disc.
(1) can not synchronize, check whether the two machines are loaded into the launch of advertising machine, or to receive advertising machine, if the installation is no problem, please contact the supplier or a professional maintenance staff.
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- Date: 2009-10-14 17:49:52 View:283