Lenovo A516 Panduan Servis - Halaman 21
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Repair Manual of Lenovo A516 Mobile Phone
3.6 Calling
3.6.1 No voice heard from the other side during the call
Use earphone and hands-free to verify
whether there is voice?
Replace the headphones and then
rechek whether it is normal
Check whether B1401,B1403 are well
welded. Re-weld and test
No voice heard from the other
side during the call
Y
N
N
Replace U1301
N
Y
Y
21
Cold solder joint
of main chip or
main
chip
abnormal
OK
OK
is