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Old 08-13-2012, 22:54   #6 (permalink)
drjaved_akhter
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Quote:
Originally Posted by d-Artigo View Post
physical check mic if damaged replace
check mic ic u609 working voltage on C655
bias in the C656 mic check
check his mic line in R621 and R622
If everything above is still good ... change mic ic U609
See the picture below (position where guide component repair)

this is ok i test 3 handset
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