LG TU550 Service Manual page 146

7. Circuit Diagram
1 2
S100
A
500873-0802
GND
DAT2_RSV
CD_DAT3_CS
CMD_DI
VDD
CLK_SCLK
VSS
DAT0_DO
DAT1_RSV
GND
B
U100
1 6
C
2 5
3 4
UCLAMP0505A
CON100
6
R200
2 33u C102
5
100
4
1
3 33u C104
R201 100
KJA-PH-3-0059
C108 C107
VREG_MSMP_2.7V
C117
39p 39p
39p
D
R107 0
TTY_ADC_DET
E
1 2
LGIC(42)-A-5505-10:01
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3 4 5
VREG_T-FLASH_3.0V
MMC_CD
MMC_CMD
MMC_CLK
MMC_DATA
C103
R101
0.1uF
390K
U102
1 6
MMC_DATA MMC_CLK
2 5
VREG_T-FLASH_3.0V
3 4
MMC_CD MMC_CMD
RCLAMP0504F
C106
2200p
MIC_JACK
HPH_R
C118
C105
10p
EAR_SENSE_N
MIC_JACK Pull-down
HPH_L R109 2200p
100K R106
2.2K
R100
VREG_MSMP_2.7V
C100
2.2K
10u
tcc_2125h1_2_r
C101
0.1u
R102
1M
5
VIN-
4
VCC 1
HOOK_SENSE_N
VIN+ 3 OUT
GND
Pull-down
2
R103
U101
330K
NCS2200SQ2T2G
3 4 5
6 7
DAUGHTER B-TO-B
1
2
HPH_L
3
HPH_R
4
5
6
VREG_T-FLASH_3.0V
7
8
9
10
11
12
VREG_MSMP_2.7V
13
14
15
MIC2P
16
MIC2N
17
VBACK_UP
MIC2P
MIC2N
Section
Designer
Checked
Approved
LG Electronics Inc.
- 147 -
8 9 10
CN100
34
33
32
31
30
MMC_CMD
29
MMC_CLK
28
MMC_DATA
27
MMC_CD
26
25
24
VBACK_UP
23
EAR_SENSE_N
22
TTY_ADC_DET
21
HOOK_SENSE_N
20
19
18
AXK834145YG
10p C109
BAT100
ML414RH-F9CE
Date Sign & Name
TU550
MODEL
CU500
09/22
SH NAM
2005
DRAWING
SUB BíD
NAME
DRAWING
SUB_1.1
NO.
LG Electronics Inc.
LGE Internal Use Only
A
B
C
D
Sheet/
Sheets
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