Ares Communications Technology . , INC
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2051P Service manual 1~3 V3.0- .doc
DB-2051P Service Manual
2004/12/17 Page 33 of 90
Confidential Document
SYMPTOM 6
The other side cannot clearly hear the voice.
During a call
Check whether a signal is sent
to the terminals of C79
from IC7.
Check whether C79, C80-A,
C80-B, C82, C84-A, C84-B,
and R45 are not well soldered.
Re-solder or replace
the relevant part(s)
in worst case.
Check Microphone is
in worst case.
END
Replace the Microphone
in worst case.
Re-solder or
replace IC7.
Y
N
N
N
Y
Y
Y
