LG KG330 Service Manual page 39

4. TROUBLE SHOOTING
Speaker Trouble (3)
SETTING : Connect PIF to the phone, and Power on. Enter the engineering mode, and set "Melody
on" at Buzzer of BB test menu.
START
Voltage of
No
C515, C518
about Vbat?
Yes
Voltage at
No
C535,C536
is varied
Yes
Check the
No
contact
state of
CON503
Yes
Speaker will
work
properly
- 40 -
Change the
board
Change the
board
Re-contact
CON503