Fixing a touchscreen calibration error in a Rockwell Collins glass cockpit requires a specific, professional procedure. The system’s touch-sensitive layer must be re-calibrated to align the touch points with the on-screen graphics. This is typically a maintenance function, not a user-accessible setting, and should be performed by a certified avionics technician.
Common Causes of Calibration Errors
A calibration error, where a user’s touch doesn’t register at the correct location, can be caused by a variety of issues.
- Software Glitch 💻: A minor software issue can cause the touch points to become misaligned. A simple system reboot may resolve this.
- Hardware Shift 🛠️: The touch-sensitive layer itself can shift slightly within the display unit, causing a permanent misalignment.
- User Input Error 👆: In some cases, a previous calibration attempt may have been done incorrectly, leading to a persistent error.
- Physical Damage 💥: A physical impact to the screen can permanently damage the touch layer, rendering a successful calibration impossible.
The Recalibration Workflow
The principle of authority is paramount; all work must be performed by a certified avionics technician who is trained and authorized to work on Rockwell Collins systems. The technician will follow a methodical workflow.
- Pilot Debrief and System Check 🗣️: The technician will start by getting a detailed account from the pilot about the exact symptoms. They will then perform a basic system check, including a reboot, to see if the problem resolves itself.
- Accessing Maintenance Mode 🖥️: The technician will put the system into a maintenance or configuration mode. This is a special mode that requires a specific sequence of button presses and is protected from the end-user.
- Calibration Procedure ✅: Once in maintenance mode, the technician will initiate the touchscreen calibration. The system will display a series of crosshairs or dots on the screen. The technician will use a stylus or a clean, pointed object to precisely touch each point as it appears. This process “teaches” the system where the physical touch points correspond to the on-screen coordinates.
- Verification 📝: After the calibration is complete, the technician will exit maintenance mode and perform a thorough check to ensure the touch function is now accurate. They will also check the system’s internal logs for any new fault codes.
- Final Diagnosis and Repair 🔄: If the calibration fails or the problem returns, it indicates a hardware issue. The entire display unit may need to be sent to a certified repair facility or replaced with a new, factory-authorized part.
Our commitment to this professional workflow has built our reputation on social proof from a loyal customer base across California, Arizona, and Nevada. Our unique selling proposition is being the only 24/7 maintenance center in the area. This commitment to consistency means we can begin the diagnostic and repair process immediately, minimizing your aircraft’s downtime and getting you back in the air with confidence.