Speaker Part - Samsung SGH-F400 Service Manual

Fl o w Chart of Troubleshooting

10-1-5. Speaker part

There is no sound from the speaker
Yes
No
Is the Normal Mic path
component soldering status
Resolder the trouble point
ok ?
Yes
No
Is there any signals at the
Check the MSM6280
pin #3(R507), #4(R508)?
Yes
No
Is there any signals at the
Check the U501
pin #9, #16?
Yes
Change the speaker module
END
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