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Siemens Industrial Screen Repair
Siemens touch screens are powerful and comprehensive, with strong overload capacity to meet a wide range of applications. Siemens touch screens have self-protection features, including over-voltage, under-voltage protection, overheating, and short-circuit protection. Despite this, irreparable faults may occur during use, which require professional engineers to respond efficiently and flexibly. However, some common faults should also be mastered by equipment maintenance personnel. Below is a list of common issues encountered in Siemens touch screen repairs for reference!
1. Circuit Board Faults
This type of issue is quite tricky and requires touch screen maintenance personnel to have a certain understanding of circuit principles, hands-on skills, and experience. Touch screens are controlled by highly integrated chips such as DSP, and during repair, it is necessary to refer to the circuit diagrams provided by the chip manufacturer. Common faults usually involve crystal oscillators, peripheral ICs, etc.
2. Siemens Touch Screen Freezing
There are two causes for a Siemens touch screen freezing: software or hardware. First, we should attempt to restore factory settings using software to rule out software issues. If we cannot restore factory settings, or if the problem persists after restoration, we need to consider hardware issues and choose a professional Siemens touch screen repair service.
3. LCD Not Displaying or Displaying Abnormally
This can be caused by external factors similar to those affecting the touch glass, but it is not common. Most often, it is due to LCD aging, which can be resolved by replacement. There are also issues related to different manufacturers and specifications of LCDs. Another cause can be damage to the LCD driver, which requires circuit board repair.
4. Touch Glass Faults
This is the surface layer that comes into contact with human hands frequently and is prone to problems. Generally, these types of faults arise from rough handling by users or careless transportation, resulting in breakage. Occasionally, internal components such as resistors may break. This fault can only be resolved by replacing the touch glass. Due to different production standards among manufacturers, the replacement process often involves “molding”. Once the mold is made, repairing the touch screen becomes a straightforward task—just replacing it.
5. Communication Faults
Issues such as incorrect communication program settings on the lower computer, incorrect human-machine interface system addresses, burnt communication ports, short circuits in communication lines, or poor connections can all lead to communication faults.
6. Touch Not Responsive Faults
This is generally caused by the misalignment of the buttons corresponding to the LCD display and glass. It can also be due to aging of the touch glass. The former can be recalibrated using the “calibrate center point” function provided by the human-machine interface manufacturer. The latter requires replacement of the touch glass. Some issues may also arise from poor contact, which can be resolved by cleaning.
The repair experiences outlined above for Siemens touch screens are not only applicable to Siemens industrial screens but also to touch screens of other brands, allowing for analogous troubleshooting. Of course, this can vary from person to person and from wisdom to wisdom.
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