Only For Training And Service Purposes - LG TU550 Service Manual

3. TECHNICAL BRIEF
MSM6275 CODEC pins
CON100
6
R200
2
5
100
4
1
3
R201
KJA-PH-3-0059
C117
39p
R107
TTY_ADC_DET
LGE Internal Use Only
U100
1 6
2 5
3 4
UCLAMP0505A
33u C102
HPH_R
MIC_JACK
33u C104
HPH_L
100
C108 C107
VREG_MSMP_2.7V
39p 39p
R100
2.2K
0
Figure . Audio part schematics
Microphone external gain network
10%
R100
0.1u C100
180K
0.015u C103
0.015u C104
10%
R111
0.1u C106
180K
MIC_JACK
EAR_SENSE_N
Pull-down
R109
100K
VREG_MSMP_2.7V
C100
10u
tcc_2125h1_2_r
C101
0.1u
R102
1M
5
VIN- 4
VCC 1
VIN+ 3 OUT
GND
2
R103
U101
330K
NCS2200SQ2T2G
Copyright © 2007 LG Electronics. Inc. All right reserved.
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MICFBN
MICINP
10%
0.1u C101
MICOUTN
R102
470K
10%
0.1u C107
MICOUTP
MICINN
MICFBP
Place close to MSM
under same Shield
C106
2200p
MIC2P
C118
C105
10p
MIC2N
2200p
R106
2.2K
HOOK_SENSE_N
Pull-down

Only for training and service purposes