LG -D175F Service Manual page 193

< 6-4-2_Earjack_Detector_MAX14628 >
Rev_0.3
Delete
Rev.D
SPK/RCV Dual mode
Dual Mode Analog S/W
(support to negative)
+VPWR
0903_change
0826_Added
TP6701 U6700
DG2750
1 10
V+ NO2
2 9
NO1 COM2
R6700 3 8
RCV_P
COM1 IN2
10
SPK_RCV_SEL 4 7
IN1 NC2
R6701
RCV_N 5 6
NC1 GND
10
C6702
SPK_RCV_SEL 0.1u
LOW RCV
HIGH HI-z
LGE Internal Use Only
<MBHC_MIC_LDO_+1V8 >
Deleted
< 6-7-1_Speaker >Rev_0.4
L6700 1800
SPK_RCV_P
L6701
SPK_RCV_N 1800
C6700 C6701
SPK_RCV_N 4.7n 4.7n
Rev.D Rev.C
SPK_RCV_P
0831_change
EAR_MIC_JACK
HPH_L_OUT FB6611 1000
EAR_SENSE_JACK
FB6612 1000
HPH_R_OUT
1n
FM_ANT C6610
R6921 0
C6922 C6923
470p 470p
0801_change
GND Close to EarJack
HPH_REF
0826_Change
C6615
470p
R6617
MIC_BIAS_1
MIC_IN2_N
Rev.C
1
L6702 0
CN6700
2
L6703 0
Rev.D
Rev.1.0
1005 -> 0603(DR)
4.7n 4.7n
- 193 -
< 6-6-1_Earjack > Rev_0.4
Rev.C
L6610
100n
Rev.C
AUX CABLE Line
Rev.1.0
1005 -> 0603(DR)
R6924
2.4M
Rev.D
C6611
33p
1K R6613 1.2K
R6923
Rev.D U6600 FSA5157L6X
330K 1 6
C6614 S B1
Rev.C C6613
2 5
DNI +VPWR VCC GND
DNI R6619
3 4
A B0
0
R6620
C6616
DNI Rev.1.0
1u
1005 -> 0603(DR)
Rev.C
< 6-9-2_2MIC >
Rev_0.4
0603 change
MIC_BIAS_1
C6920
DNI
MIC_IN1_N
C6921
33p
MIC_IN1_P FB6920 1800
C6703 33p
0.1u
Rev.1.0
1005 -> 0603(DR)
GND Close to MIC 0801_change 0831_change
Copyright © 2014 LG Electronics. Inc. All right reserved.
6. CIRCUIT DIAGRAM
1800
FB6610
5
M5-MIC
4
M4-L
4D
M4-DETECT J6610
1
M1-R
6
M6-GND
DNI DNI
Rev.D
R6622
Rev.1.0
DNI
Dual only single only
6
6
G4
5 G4
5
PWR
4 PWR
4
G3
3 G3
3
G2
2 MIC6920 G2
2 MIC6921
G1
1 G1
1
OUT
OUT
0903_change 0903_change
R6623
Rev.1.0
DNI
Dual only : R6622, R6623(SAFO0000401) / MIC6920
Single only : R6622, R6623(SAFP0000401) / MIC6921
Only for training and service purposes