LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 72 -
START
Is JACK_DETECT
LOW?
NO
YES
Resolder J200
YES
Earphone will work properly
Can you hear your
voice from
the earphone?
Set the audio part of the test
Equipment to echo mode
Change the earphone
and try again
NO
Can you hear
the sound from
the earphone?
Set the audio part of the test
equipment to PRBS or
Continuous wave mode
YES
YES
Resolder JACK_DETECT pin
Check JACK_DETECT
pin(#8) in CN302
Resolder R310
NO
YES
Can you hear
the sound from
the earphone?
NO
Change the earphone
and try again
NO
Can you hear your
voice from
the earphone?
NO
Resolder C318, C319, L301 & L300
OR Change the U308
Resolder R317,R321, R316 & R322
Or Change the U102
CHECKING FLOW
Содержание KP210
Страница 1: ...Date February 2008 Issue 1 0 Service Manual Model KP210 KP215 Service Manual KP210 KP215 ...
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Страница 138: ...Note ...
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