Furuno GP-27 - Testing and Calibration

11. MAINTENANCE, TROUBLESHOOTING
11-5
11.7 Test, Touch Screen Calibration
You can check the display color, internal memory and SD card with the [Test] function.
Perform [Touch screen Calibration] when the touch panel does not respond according
to your operation.
[Test] function
1. Open [Home] and tap the [System] menu icon to show the [System] menu.
2. Tap [Test] to show the Test sub menu.
3. Tap a test, among [Display Test], [Memory Test], and [SD Cards Test].
4. Tap [Exit] to close the screen.
[Touch screen Calibration] function
1. Open [Home] and tap the [System] menu icon to show the [System] menu.
2. Tap [Touch screen Calibration] to show the calibration screen.
3. Tap mark.
4. A window for the shutdown appears. Tap [OK] to turn the power off.