LG KE990 Service Manual - Page 59

Audio Mode, Audio & Sound Main Component

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3. TECHNICAL BRIEF 3.9.7.2. Audio Mode There are three audio modes (Voice call, speaker phone, MIDI/MP3). MODE Voice Call Speaker phone MIDI MP3 Device Receiver Mode Loud Mode Headset Loud Mode Loud Mode Headset Loud Mode Headset Description Receiver Voice Call Speaker Phone Headset Voice Call Speaker Phone Speaker MIDI Bell Headset MIDI Bell Speaker MP3 Headset MP3 Table. Audio Mode Audio & Sound Main Component There are 8 main components in KE990. Component 1 ESM6270 2 Audio Codec 3 Analog Switch 4 Speaker 5 Receiver 6 Main MIC 7 CAM MIC 8 Ear MIC Maker Part No. ESM6270 WM8983 NC7SB3157L6X EMS1634APB1 EMR0906SP SPM0204HE5-PB SPOB-413S42RC3310BC HC-MQD-LG059 Note Base-Band Modem ADC/DAC, AB class SPK AMP Analog Switch for MIC BIAS 8 ohm Speaker 32 ohm receiver -42 dB microphone -42 dB microphone Ear MIC Table. Audio main component list LGE Internal Use Only - 60 - Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes

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- 60 -
3. TECHNICAL BRIEF
3.9.7.2. Audio Mode
There are three audio modes (Voice call, speaker phone, MIDI/MP3).
Audio & Sound Main Component
There are 8 main components in KE990.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
Headset MP3
Headset
Headset MIDI Bell
Headset
Speaker MP3
Loud Mode
MP3
Speaker MIDI Bell
Loud Mode
MIDI
Speaker Phone
Loud Mode
Headset Voice Call
Headset
Speaker Phone
Loud Mode
Speaker phone
Receiver Voice Call
Description
Receiver Mode
Voice Call
Device
MODE
Table. Audio Mode
-42 dB microphone
SPOB-413S42-
RC3310BC
CAM MIC
7
32 ohm receiver
EMR0906SP
Receiver
5
8 ohm Speaker
EMS1634APB1
Speaker
4
-42 dB microphone
SPM0204HE5-PB
Main MIC
6
Ear MIC
HC-MQD-LG059
Ear MIC
8
Analog Switch for MIC BIAS
NC7SB3157L6X
Analog Switch
3
ADC/DAC, AB class SPK AMP
Base-Band Modem
Note
WM8983
ESM6270
Maker Part No.
Audio Codec
ESM6270
Component
2
1
Table. Audio main component list