Speaker Part - Samsung SGH-J750 Service Manual

Flow Chart of Troubleshooting

9-3. Speaker Part

Speaker does not work
Yes
C703(VDD_B_2.9V) =
2.9V
Yes
Check the U713 work
correctly
Yes
Is Speaker working?
Yes
END
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No
No
No
9-6
Check the U402
Check the U713
Change the Speaker