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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-15
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10-4.
MIC Working
3,4
Pin in
IFC400 Signal
ON?
3.5
Pin in
HDC400
Signal ON?
Change Earphone
Check the DC bias voltage on MIC path
Change
MIC Assy's
Yes
Check the path around MIC Bais circuit
The voltage of
R418 is about
1.6V ?
No
YES
No
Operate Microwave
Yes
Yes
No
AE17, AE18 in
UCP200 Signal
ON
?
YES
No
Check the C405, C406, UCD402
END