Abnormal Operation Of Ctp Keyboard - Lenovo A516 Service Manual

Repair Manual of Lenovo A516 Mobile Phone

3.5.2 Abnormal operation of CTP keyboard

CTP keyboard is invalid
Whether the CTP test is normal?
Replace one CTP to see whether
it is the problem of touch screen
or main board?
It is the problem of CTP connector or
main chip welding
Y
N
CTP fault
N
20
CTP damaged,
replace it
Replace CTP