Audio Block Diagram - LG CU405 Service Manual

3. TECHNICAL BRIEF

3.9 Audio Block Diagram

MSM6280
LGE Internal Use Only
LINE_N
LINE_P
TPA2005D
SPK_AMP_EN
HPH_L
HPH_R
MICBIAS
MIC1P
MIC1N
-42dB +/-3dB
SPK+
Amp
SPK-
EAR_SENSE_N
TTY_ADC_DET
HOOK_SENSE
MIC2P
VREG_MSMP_2.7V
MIC
4Pie, 1.1T
RCV+
RCV-
Copyright © 2007 LG Electronics. Inc. All right reserved.
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Loud SPEAKER
20Pie,3.7T
8ohm, 1.2W
EAR JACK
4 Pole
Receiver
13Pie*3T
32ohm, 30mW
HAC
Only for training and service purposes