LG L704I Service Manual page 69

3. TECHNICAL BRIEF
3.11.9.2. Audio Mode
There are four audio modes (Voice call, speaker phone, VT phone, MIDI/SD contents).
MODE
Voice Call
VT phone
Speaker phone
MIDI
SD contents
Audio & Sound Main Component
There are 7 main components in L704i.
Component
1 MSM6280
2 Audio Processor
3 DAC & AMP
4 Loud Speaker
5 Receiver
6 MIC
7 Ear jack
LGE Internal Use Only
Device Description
Receiver Mode Receiver Voice Call
Loud Mode Speaker Phone
Headset Headset Voice Call
Receiver Mode Receiver VT phone
Loud Mode Speaker VT phone
Headset Headset VT phone
Loud Mode Speaker Phone
Loud Mode Speaker MIDI Bell
Headset Headset MIDI Bell
Loud Mode Speaker MP3
Headset Headset MP3
Table. Audio Mode
Design No. Maker Part No.
U507 MSM6280
U545 AP131
U575 YMU800-WZ
EMS1634AP
EMR0906SP
MIC1 SP0204LE5-PB4
CN838 HSEJ-10S-05
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Note
Base-Band Modem
Audio Processor LSI with SD
Interface
Class-D Audio Amp & DAC
8 ohm Speaker
32 ohm receiver
-42 dB microphone
Ear jack
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