Lenovo A859 Panduan Servis - Halaman 18
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Repair Manual of Lenovo S920 Mobile Phone
Keyboard
3.5.1 Abnormal operation of CTP keyboard
CTP keyboard is invalid
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
J1603or main chip U1201 welding
Y
CTP damaged,
replace it
N
Y
Replace CTP
N
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