Lenovo A536 Service Manual - Page 26

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Lenovo A536 Service Manual

3.13 Speaker tone distortion

Replace the speaker, and then
does the phone work normal?
Whether the speaker spring is
normal?
Replace the Sub FPC, and then
does the phone work normal?
Checks the SMT quality of
BEAD on the Sub board and.
Whether these parts are SMT
good? The phone is work good
after heating these parts?
Replace the codec IC
Speaker
tone
distortion
N
N
N
Y
OK
Y
Replace the
Sub FPC.
Y
OK
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