Samsung SGH L170 Service Manual Page 49

  • Download
  • Add to my manuals
  • Print
  • Page
    / 79
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 48
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-9
This Document can not be used without Samsung's authorization
10-1-5.
Microphone Part
Flow chart of Microphone Part
Micro-phone does not work
Reassemble MAIN KEY FPCB
Check the DC bias voltage on Mic path.
Check the path around MIC
Bias circuit
Check UCP
300
END
NO
YES
Is the assembled
status of
Microphone O.K?
The voltage of R503
is
about
1.8V ?
NO
The microphone is OK
NO
YES
YES
YES
Page view 48
1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 78 79

Comments to this Manuals

No comments