LG D686 - Page 156

- 156 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
6. CIRCUIT DIAGRAM
ZD501
2 1
0
C511
R518
0
0
R517
0
R502
21
C524
1u
C520 1u
1uC518
1uC521
C519
1u
2.2u
C517
VBATT
FB505 600
600FB506
ZD503
2
1
ZD504
2
1
C527
33p
C528
33p
FB507
1800
C525
33p
C526
33p
CN501
2
1
C535
1u
1
2
VBATT
VBATT
2.2u
L501
21
U503
D4 D3
D2
D1
C4
B4
B3
A4
A2
B2
C1
A1
B1
C2
A3
C3
SGND
OUTL
HPVSS
GND
EN
CPN
CPP
VDD
INL-
HPVDD
INL+
INR+
HI-Z
GAIN
OUTRINR-
C502
10u
C504
10u
DNIC512
100n
L504
2
1
10R511
R512
10
ZD506
21
ZD505
21
ZD507
2
1
ZD508
1
470K R507
1
2
1800FB508
+1V8_VIO_MTK
1800FB509
R515 0
FB511 1800
L503
100n
C509 0
FB510 1800
MIC501
4
3
2
1
P
G1
G2
O
33p
C531
C529
DNI
33p
C530
2.2K
R509
10u
C501
C503
10u
10K
R506
21
C516
33p
60FB501
FB503
60
33p
C513
R508
1.5K
33p
C514
C515
33p
+1V8_VIO_MTK
100K R505
2
R503
DNI
2
VA501
2
1
2.2u
C523
60FB504
R513
DNI
1
J501
S/W_Detect
SPK_L
SPK_R
MIC
GND
C522
1u
FB502 60
L502
2.2u
21
U501
D1
D2
D4
D3
B4
A4
B2
B3
A3 A2 A1
C4
C3
B1
C1
C2
GND2
OUT-
OUT+
END
GND3
PVDD
PVOUT
SW
AGC
GAIN
GND1
VBAT
IN-
ENB
IN+
GND4
U502
D1
D2
D4
D3
B4
A4
B2
B3
A3 A2 A1
C4
C3
B1
C1
C2
GND2
OUT-
OUT+
END
GND3
PVDD
PVOUT
SW
AGC
GAIN
GND1
VBAT
IN-
ENB
IN+
GND4
47nC506
C505 47n
C507 47n
D501
21
47nC508
C533
47p
1
2
47p
C534
1
2
ZD502
2 1
R514 0
R516
47K
2
1
C510 DNI
EARMIC_BIAS
HOOK_DETECT
MIC2_P
HPH_R
HPH_R
HPH_L
HPH_L
Headset_AMP_EN
FM_RX_IN_N
SPK_RN
SPK_RP
SPK_LP
SPK_LN
EARMIC_P
EARMIC_N
HP_AMP_SGND
HP_AMP_SGND
RCV_P
RCV_N
VMIC
SPK_AMP_R_EN
SPK_AMP_L_EN
EAR_R
EAR_R
EAR_L
EAR_L
FM_ANT
HS_JACK_DET
MIC2_N
Contact Type
Receiver
RevB 1800 -> 600
Sub Mic
changed to BSE
D-Class DUO Speaker AMP
Cutoff Freq. 320Hz, 15.5dB Gain
Close to 3.5pi ear-jack
3.5pi Ear Jack Connector
LOW
HIGH(DEFAULT)
STATE
UNMATING
HS_JACK_DET
A
UDIO
MATING
MAIN GND