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3.14 Ring is low
Check the speaker leaf spring if contact the
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 is low
Check audio NV and
Re-download SW
N
Measure speaker impedance if
ok (8Ohm or 4Ohm)
N
N
N
Y
OK
N
Speaker fault, replace
it
Y
Y
OK
OK
27
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