LG KS20 - Page 70

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Only for training and service purposes
Voice Call Speaker Phone Mode
3. TECHNICAL BRIEF
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Voice Call Speaker Phone Mode is routed as below
MSM7200 LINE_ON, LINE_OP -> AMP(U401) ->Analog Switch( U400 ) -> Loud speaker
Voice
Voice + MP3 + MIDI
MSM7200
(U100-1)
AMP
(U401)
Loud Speaker
MIC
Head_set MIC
Receiver and
Analog
switch
(U400)
Head_Set
Headset
AMP
(U402)