Lenovo A859 Servicehandleiding - Pagina 20
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Repair Manual of Lenovo S920 Mobile Phone
3.6.2 No voice heard from your side during the call
No voice heard from your side during the call
Check whether MIC and the peripheral devices are
well welded; whether it is ok after re-welding?
Whether it is ok after replacing SUB
board?
Whether it is ok after replacing main FPC?
Check whether MIC module device is well
welded. Re-welded this device and see whether it
is ok?
N
Y
N
N
N
Check U1201
20
Y
Re-weld
ＯＫ
Y
OK
Y
OK