LG LG9200 Service Manual page 49

4. TROUBLE SHOOTING
Speaker/Receiver Trouble (5)
2. Speaker Trouble
START
Enter into Engineering Mode and
go to menu ìBaseband => Alert => Ringî
Does sin e wave appear
at C217?
Yes
Conne ction be twe en
FPCB and boa rd is OK?
Yes
Contact in g of CN201
and Speaker is O K?
Yes
Speaker is out of order.
Change th e Speaker .
No
No
Melody IC is out of or der.
Reco nnect FPCB.
No
Re-contact the
CN201 and Speaker.
- 50 -
Main boa rd is out of or der.
No
V_CAM is 2.8V?
Yes
Change the U201.
Change the boa rd.