Vision Fitness TF20 Service Manual page 21

2.6.5 ENGINEERING MODE (Touch Console) - Test Tab
The Test Tab is used to test the corresponding hardware.
Display Test – Tests the reliability of the LCD and Touch panel.
Display Test - Touch panel Test
Use your finger to draw a line following the instructions on the screen. If the test fails, selecting "continue" will bring the
user directly into the calibration screen. Refer to the figure below：
Display Test
Key Test
Audio Test
Hardware Test
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