Acer HARLEY TAB A3-A20 - Page 63

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8. Keypad Fault
YES
YES
NO
YES
NO
YES
NO
YES
NO
YES
Re-assemble the keypad
Clean again
Amend the related structural parts
Keypad Fault
Check if the keypad and DOME are
assembled correctly
Check if the keypad and DOME are
clean.
Check if the structural parts affect
DOME?
Check if the structural parts affect
DOME?
Replace the keypad and
make bad marks on keypad
Repair the MB referring to the
troubleshooting guide for L3 repair
OK
Replace MB