LG VX9100 Service Manual page 105

VX9100
START
Insert the headset to ear-jack
Does the audio profile of
the phone change to the headset
Mode?
Set the audio part of the test equipment
to echo mode
Can you hear your
voice from headset ?
Headset will work properly
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Only for training and service purposes
YES
NO
YES
YES
NO
NO
YES
YES
Checking Flow
Checking Flow
Change headset
and try again
Can you hear your
voice from headset ?
No
Set the audio part of the test
equipment to continuous wave mode
Can you hear the
Sound from headset ?
YES
- 104 -
1
: Headset detect
problem
2
: Headset receiving
NO
path problem
3
: Headset sending
path problem
4
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