LG KB770 Service Manual page 72

3.10.10.1. Audio Mode
There are three audio modes (Voice call, speaker phone, MIDI/MP3).
MODE
Voice Call
Speaker phone
MIDI
MP3
Audio & Sound Main Component
There are 6 main components in KB770.
Component
1 MSM6280
2 Audio amp
3 Analog Switch
4 Speaker/Receiver
5 MIC
6 Ear phone
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Only for training and service purposes
Device Description
Receiver Mode Receiver Voice Call
Loud Mode Speaker Phone
Headset Headset Voice Call
Loud Mode Speaker Phone
Loud Mode Speaker MIDI Bell
Headset Headset MIDI Bell
Loud Mode Speaker MP3
Headset Headset MP3
Table 3.10.9.1 Audio Mode
Design No. Maker Part No.
U200 MSM6280
U301 WM8959
U300 NLAS5223BMNR2G
1813-8T-01PP
MIC SPM0410LR5H-QB
HC-MYD-LG086
Table 3.10.9.2 Audio main component list
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3. TECHNICAL BRIEF
Note
Base-Band Modem
Audio amp. Codec.
Dual Analog Switch
8 ohm Speaker
-42 dB microphone
Stereo Ear mic set
LGE Internal Use Only