Acer ICONIA TAB A110 Service Manual page 100

Figure 4-29. Use one finger and touch the spaces to fill them all in green.
Figure 4-30. If the spaces are filled all in green, the test will pass.
NOTE: NOTE:
The test program only gives you 20 seconds to filled all the spaces. If you can't finish
the test in 20 seconds, it will be failed. Be careful please.
12. Multi-Touch Test
Press the icon Multi-Touch, you need simultaneously touch the screen with all ten fingertips,
and the screen will show the values of the location where you touching.
4-20