Speaker Part - Samsung GT-E1172 Service Manual

8-3-6. Speaker Part

Speaker does not work
UCP200 pin W18, W19
(Wiring the SPK N/P and
checking an waveform using
Does not work Voice call ?
Does not work Ringtone?
(Menu->settings->profiles
->options->Edit->
select the Call ringtone)
Is Speaker working?
(Listening through the
Yes
> 3.7 V
oscilloscope)
Yes
Yes
Yes
speaker)
Yes
END
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No
Resolder C227 AND R209
(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, SPK300
No
(be possible of soldering not well or being
No
(be possible of SPK Problems
8-18
Level 3 Repair
UCP a bad sample)
Change Speaker ASS'Y
or not inserting it right.)