LG VX10000 Service Manual page 108

VX10000
Level of pin4 of CON4001
Is 1.65~2.10V?
Check soldering
EAR_JACK_SENSE/
Headset
sending
path problem
Level of pin4 of CON4001
Is 1.65~2.10V?
Does it work?
Does it work well?
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Only for training and service purposes
Headset detect problem
Headset detect problem
Headset detect
1
problem
No
Yes
No
U4003
Yes
No
Level of
Is low?
Yes
4
Headset sending path problem
Headset sending path problem
3
No
Re-solder
R4021
Yes
No
Download SW
Yes
No
Change main
board
Yes
4
Check soldering R4022
Yes
Re-solder U4003
Download SW
- 107 -
No
Re-solder R4022
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