Samsung SGH E250 Service Manual - Page 44

Microphone Part

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9-5. Microphone Part Microphone does not work Yes Check the connection from MIC Yes Check the circuit from UCP200 to MIC Yes Check F500 PIN 8 = ' H' ? Yes Check the MIC Yes END Flow Chart of Troubleshooting No Resolder MIC No Resolder the C514, C520, R516, R519 No Check the JACK_IN signal No Replace the MIC 9-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
9-9
9-5. Microphone Part
Check the connection
from MIC
Check the circuit
from UCP200 to MIC
Resolder MIC
Resolder the C514, C520, R516, R519
END
No
Yes
Yes
Yes
Yes
No
Check F500 PIN 8
= ' H' ?
No
Check the JACK_IN signal
Microphone does not work
Yes
Check the MIC
No
Replace the MIC