Calling Receiver Has No Sound - Lenovo A536 Service Manual

3.10 Calling receiver has no sound

Measure the resistance of
receiver, is the value 32ohm?
Check whether the contact is good
between receiver spring and contact
point. Re assemble the receiver and
whether the phone work is good.
Checks the SMT quality of these
BEAD, Whether these parts are
SMT good? The phone is work
good after heating these parts?
Calling receiver
has no sound
N
N
N
Replace the codec IC
Replace the
N
receiver.
Y
OK
Y
OK
Y
OK
23