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3.13 Ring fail
Measure speaker impedance if
)
Check the speaker leaf spring if connect to
the contact point well and Reassemble it.
Check the bead in the receiver
circuit if have a poor soldering,
and re-solder it.
Replace the audio codec chip
Ring fail
is ok (8Ohm or 4Ohm)
N
N
N
N
Speaker fault, replace it
Y
OK
Y
OK
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