Tiantian AMADA CNC bending machine touch screen maintenance rgm21003 host circuit board maintenance

AMADA Maintenance failure of touch screen of CNC bending machine ： The mouse arrow does not move when touching the screen , No position change occurred . analysis ： There are many reasons for this phenomenon ,（1） The dust or scale accumulated on the acoustic reflection stripes around the four edges of the surface acoustic wave touch screen is serious , The touch screen cannot work .（2） The touch screen is faulty .（3） The touch screen control card is faulty .（4） The touch screen signal line is faulty .（5） The serial port of the computer host fails .（6） The operating system of the computer has failed .（7） Touch screen driver installation error .

 

The touch screen makes a malfunction without touching , That is, the body or conductive object is close to the screen , Haven't touched , No action for touch operation , That is, you have touched the touch screen with your fingers , But the screen doesn't respond to touch . The capacitive screen works by using the current induction of the human body . Capacitive touch screen is a four layer composite glass screen , The inner surface and interlayer of the glass screen are coated with one layer respectively ITO( Transparent conductive film ), The outer layer is a thin layer of silica glass protective layer , Interlayer ITO Coating as working surface , Inner layer ITO Provide a good working environment for the shielding layer . When a finger touches a metal layer , Due to human electric field , A coupling capacitor is formed between the user and the touch screen surface , For high frequency current , A capacitor is a direct conductor , So the finger sucks a small current from the contact point . This current flows from the four corners of the touch screen .

Easy to use 、 Convenient , meanwhile , Touch screen lens has improved production rate , Chemical engineering cost , The advantage of life cycle cost , It is suitable for the operation and control of small machines and equipment . Whether it is processing automation , Still process automation or building automation , They are widely used in various places . Because the Amada touch operator panel is full of sound waves on the surface of the touch screen during maintenance work , If you don't wipe the touch screen for a long time , Cause excessive accumulation of dust , Blocking the reflection fringe of the wave , The touch screen will not work properly . For the touch display, you can gently wipe the dust on the surrounding reflection stripes clean or through the gap between the front cover of the display and the touch screen , And then restart it . For touch to open the front cover of the display , Use a clean towel to wipe away the dust on the surrounding reflection stripes , Then restart the control system .

 

Touch A spot , Make mistakes without touching , That is, the body or conductive object is close to the screen , Haven't touched , No action for touch operation , That is, you have touched the touch screen with your fingers , But the screen doesn't respond to touch .

Capacitive touch screen is a four layer composite glass screen , The inner surface and interlayer of the glass screen are coated with one layer respectively ITO( Transparent conductive film ), The outer layer is a thin layer of silica glass protective layer , Interlayer ITO Coating as working surface , Inner layer ITO. When a finger touches a metal layer , Due to human electric field , A coupling capacitor is formed between the user and the touch screen surface , For high frequency current , A capacitor is a direct conductor , So the finger sucks a small current from the contact point . This current flows from the four corners of the touch screen .