Touchscreen Repair: Fault Analysis

Touchscreen Repair: Fault Analysis

1. Why is the touchscreen inaccurate? a. It may be that the reflective stripes around the screen of the acoustic touchscreen are covered with dust after a period of use. Please wipe it with a dry, soft cloth, then turn off the power, restart the computer, and recalibrate. b. It is possible that the reflective … Read more

Common Oscilloscope Phenomena and Analysis

Common Oscilloscope Phenomena and Analysis

Click the above “ Tech Training ” to select “Pin to Top Public Account” Over 140,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 1. No Light Spot or Waveform Power is not connected. The brightness knob is not adjusted properly. X, Y-axis offset knob is misaligned. The Y-axis … Read more

Tektronix Digital Oscilloscope Calibration Methods

Tektronix Digital Oscilloscope Calibration Methods

To not miss exciting content, please set “Measurement Information Express” as a starred ☆. 1. Entering Adjustment Mode To prevent unauthorized adjustments, specific steps must be followed to enter the adjustment mode. The method may vary among different models of oscilloscopes. Common methods to enter adjustment mode include: 1. Calibration Switch For the Tektronix TDS200 … Read more

Recalibration of Oscilloscope Signals and Cable De-embedding

Recalibration of Oscilloscope Signals and Cable De-embedding

The oscilloscope measures the voltage applied to its input. In most cases, this is not an issue, but in certain situations, it is necessary to move the reference measurement plane and recalibrate the oscilloscope’s measurements. For example, if a minimum insertion loss impedance box (MLP) is used to terminate a measurement source with an impedance … Read more

Using Oscilloscope for Electrical Repair

Using Oscilloscope for Electrical Repair

An oscilloscope is an indispensable instrument in modern electrical repair. With it, technicians can quickly and accurately locate common faults, making the proper and skilled use of an oscilloscope a required skill for electrical repair personnel. Although there are various models, specifications, and types of oscilloscopes, their basic structure and function are quite similar. This … Read more

Oscilloscope Usage Guide

Oscilloscope Usage Guide

Click on “ Technical Training” above to select “Pin to Top” Over 140,000 industrial control professionals follow this WeChat platform: technical sharing, learning exchange, industrial control videos 4. Usage (1) Pre-Usage Check Before using the oscilloscope for the first time or after long-term storage, it is necessary to perform a simple check to see if … Read more

How to Stabilize Waveform Signals from Two Different Signal Sources on an Oscilloscope?

How to Stabilize Waveform Signals from Two Different Signal Sources on an Oscilloscope?

In the field of electronic engineering, oscilloscopes are important tools for analyzing signal characteristics. When it is necessary to observe and stabilize the waveforms from two different signal sources simultaneously, how can electronic engineers achieve this? Below are the specific steps to efficiently stabilize the display of both signals on the oscilloscope. 1. Check Signal … Read more

Touch Screen Malfunction Repair

Touch Screen Malfunction Repair

Taking the Philips Sonos 5500 color Doppler ultrasound machine as an example, during the actual application of the color Doppler ultrasound machine, a malfunction occurred on the left touch screen, where the preset condition selection and probe switching often resulted in multiple attempts failing to select. Consider that the touch screen may need recalibration due … Read more

Calibration and Initialization of Weilin Touch Screen

Calibration and Initialization of Weilin Touch Screen

Search on WeChat Jicheng Training The HMI touch screen may experience touch drift due to various factors such as installation or site conditions, resulting in the touch position not aligning with the actual action point. 1. When the HMI experiences touch drift, first check if the bolts are too tight, causing the surface panel to … Read more

Common Fault Solutions for Touch Screen All-in-One Machines (Part 2)

1. Touch Screen Click Accuracy Decreases [Fault Phenomenon] A touch screen has decreased click accuracy, making it difficult to position the cursor. [Fault Analysis and Handling] 1) Run the touch screen calibration program. 2) If it is a newly purchased touch screen, try uninstalling the driver, then power off the main unit for 5 seconds … Read more