LG KG110 - Page 67

4. TROUBLE SHOOTING
66
Earphone receiving path problem
Checking soldering
C236,R241,J200
Replace m ain
board
V oltage at C236 about 1.2V
3
Download S/W
Resolder
C236,R241,J200
No
NG
Yes
Yes
D oes the audio profile of
phone change to earphone
m ode?
START
1
Can you hear your
voice from the
earphone
Change earphone
Change earphone
No
Yes
Yes
Insert the earphone to the phone
Set the audio part of the test
equipm ent to echo m ode
Can you here your
voice from the
earphone?
S et th e eq u ip m en t to
PR BS or continuous wave
mode
Earphone will
work properly
2
3
4
No
Earphone detect problem
A udio path problem
No
Can you hear your voice
from the earphone
Earphone receiving
path problem
Yes
Earphone sending path
problem
CHECKING FLOW