LG VX10000 Service Manual page 107

VX10000
START
Insert the headset to the handset.
Yes
Does the audio
Profile of the phone change to
the headset mode?
Yes
Set the audio part of the test
equipment to echo mode
Can you hear your voice
from the headset?
Yes
4
The headset will
work properly
2
Level of C309, C311
is about 1.2V ?
Yes
Check soldering of
Pin2,3 of CON4001
Yes
Change
main board
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Only for training and service purposes
Checking Flow
Checking Flow
No
Change the headset and
try again.
Can you hear your voice
from the headset?
Headset receiving path problem
Headset receiving path problem
No
Download
S/W
No
Re-soldering of
Pin2,3 of CON4001
- 106 -
No
1
Set the audio part of the
test equipment to
continuous wave mode
Yes
Can you hear the sound
from the headset?
No
Yes
3
Headset detect problem
Headset receiving
Path problem
No
2
Headset sending
path problem
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