LG F3000 Service Manual page 82

Hide thumbs Also See for F3000:
Table of Contents

Advertisement

Earphone detect problem
Earphone detect problem
1
Check the signal level
of JACK_DETECT.
Is it almost 0?
Yes
5
Replace U201
4
Earphone sending path problem
Earphone sending
path problem
3
Level of R210 is
about 2.8V?
Yes
Level of R230 is
about a few tens
or hundreds VAC?
Yes
No
Level of R201 is
about 2.5V?
Yes
Resolder
U202.
No
Re-solder
R210
No
Re-solder
R230
Does it work well?
- 83 -
4. TROUBLESHOOTING
No
5
Re-download
software.
Does it work well?
4
Change
main board

Advertisement

Table of Contents
loading

Table of Contents