Microphone Part - Samsung SGH-X810 Service Manual

Flow Chart of Troubleshooting

9-1-5. Microphone Part

Microphone does not work
Check the
assembled status of
microphone.
YES
Check the reference
voltage on mic path
R409=2.4V
YES
Is microphone ok?
YES
END
NO
NO
NO
9-10
Reassemblage microphone
resolder or change
(R409,C414,R408,C409,R
445)
Check U300