LG D686 - Page 86

3. TROUBLE SHOOTING
- 86 -
Copyright © 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
33nL1002
2
1
L1004 33n
2
1
33nL1003
2
1
L1001 33n
2
1
ANT10002
1
FEED
ANT10000
1
FEED
ANT10003
1
FEED
ANT10001
1
FEED
SPK_LP
SPK_LN
SPK_RN
SPK_RP
SPEAKER1 SPEAKER2
L1001,L1002
L1003,L1004
0
C511
VBATT
C504
10u
DNIC512
C503
10u
C516
33p
C515
33p
60FB504
FB502 60
L502
2.2u
21
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
C507 47n
47nC508
HPH_L
SPK_LP
SPK_LN
SPK_AMP_L_EN
C507,508
FB502,504
VBATT
2.2u
L501
21
C502
10u
C509 0
10u
C501
60FB501
FB503
60
33p
C513
33p
C514
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
47nC506
C505 47n
C510 DNI
HPH_R
SPK_RN
SPK_RP
SPK_AMP_R_EN
C506,505
FB501,503