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Level 3 Repair
8-3-7. Speaker Part
Speaker does not work
(Wiring the SPK N/P and
checking an waveform using
Does not work Voice call ?
Does not work Ringtone?
(Menu->Settings->Sound
select the Call ringtone)
Is Speaker working?
(Listening through the
Yes
L508, L509
> 2.0 V
oscilloscope)
Yes
Yes
profiles->Edit->
Yes
speaker)
Yes
END
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No
Resolder L508 & L509
(be possible because of soldering not well)
No
Replace UCP200 using a Heatgun
(be possible of being UCP a bad sample)
Resolder or Replace UCP200, U506, SPK401
No
(be possible of soldering not well or being
No
(be possible of SPK Problems
8-20
UCP a bad sample)
Change Speaker
or not inserting it right.)
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