LG VX5400 Service Manual page 104
Tri band, quad mode [pcs/gps/cellular/amps] cdma mobile phone
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Also See for VX5400:
- User manual (99 pages) ,
- Quick reference manual (49 pages) ,
- Quick start manual (6 pages)
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Earphone detect problem
Level of pin 4 of CON600
about 2.6V?
5
Check soldering
Check working
Earphone sending path problem
Earphone
sending
path problem
3
Level pin4 of CON600
is about 2.6V
Yes
Level of C313 is
About a few tens
or hundreds VAC?
Yes
LGE Internal Use Only
Earphone detect
1
problem
No
Yes
Q600
No
Yes
Q600
No
Yes
4
No
Re-solder
R627, R628
No
Re-solder
C313
Level of R628, R627
about 2.6V?
Yes
Re-solder R628, R627
Re-solder Q600
Replace Q600
No
Does it work well?
Yes
Copyright@2007 LG Electronics. Inc. All right reserved.
-104-
No
5
Re-download
software
No
Change main
Does it work well?
Yes
4
Only for training and serving purposes
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