LG S5000 Service Manual page 77

4. TROUBLE SHOOTING
Checking Flow
START
Voltage across C226
= 2.85V?
Yes
Check the soldering of
C228, C229
Yes
Check the signal level of
C228, C229
Yes
Check the state of
contact of dual mode speaker
Yes
Speaker
Working well!!
No
Check the soldering of
C226
Yes
Re-soldering
C226
No
Re-soldering
C228, C229
Re-solder C228,
No
C229 or Replace
U202
No
Replace speaker
- 78 -
No
Replace C226