LG LG9200 Service Manual page 74

Earphone Trouble (4)
START
Insert the earphone
into the headset.
Does the Audio pr ofile change
to the earphone mode ?
Set the audio part of test equipment
to PRBS or continuous wave mode
Can y ou he ar the sound
fr om the earphone ?
Yes
Go to pa ge 76
2. Sending P ath pr oble m
No Go to pa ge75
1. Earphone detection pr oble m
Sold erin g of C226, L201
No
The ABB is out o f or der.
- 75 -
4. TROUBLE SHOOTING
cf) PRBS : Pseudo Ra nd om Bit S eque nc e
No
R219 is O K?
Yes
No
Sold erin g of J201
is O K?
Yes
No
The earphone is OK?
Yes
Change the board.
Reso ld er the
C226, L201, R219
Reso ld er the
J201.
Change the
Earphone .