LG U830 KU830 Service Manual page 66

Voice Call Headset Mode Path & Head video Telephony Mode
MSM6275
(U101-1)
❈
Voice Call Headset Mode is routed as below
MSM6275 HPH_L, HPH_R
Head_Set
AMP
(U201)
Voice
Voice + MP3 + MIDI
➞
➞
18Pin MMI Headset
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3. TECHNICAL BRIEF
Analog
switch
(U303)
Receiver and
Loud Speaker
MIC
Head_set MIC