6 microphone part - earphone mic – Sharp SGH-J200 User Manual

Page 41

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Flow Chart of Troubleshooting

9-10

9-6 Microphone Part - Earphone MIC

Earphone mic. does not work

Yes

Not OK

Check the connection

from IFC600

Resolder IFC600 pin 3,4

Yes

Change a Earphone

Is Earphone MIC working?

OK

OK

Resolder L503, L504, C528, C532

Check the circuit

from IFC600 pin 3,4

to UCP300

END

Not OK

No

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