Lenovo A536 Servicehandleiding - Pagina 13

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Lenovo A536 Servicehandleiding

3.2 Touch panel have no effect

Touch panel have no effect
The SMT of touch panel connector
and EMI filter is not normal?
Using the oscilloscope, the I2C
controller line has signal output?
Touch panel
is not normal
?
N
N
N
Change CPU chip
Y
Touch panel is not
good, change it.
Heat the touch panel
Y
connector and EMI
filter.
13