LG D686 Service Manual page 86

VBATT
HPH_R
SPK_AMP_R_EN
VBATT
HPH_L
SPK_AMP_L_EN
SPEAKER1 SPEAKER2
L1001,L1002
L1001
1
SPK_LP
L1002
SPK_LN
1
LGE Internal Use Only
C501
C506,505
10u
C506 47n
C505 47n
C509 0
C510 DNI
C503
C507,508
10u
C508 47n
C507 47n
C511
0
C512 DNI
33n
1
ANT10001
FEED
2
33n
1
ANT10003
FEED
2
L501
1 2
2.2u
B4 A3 A2 A1
D3
IN-
D2 B1
IN+ OUT+
U501
B2 C1
GAIN OUT-
B3
AGC
D4
ENB
C3
END
A4 C2 C4 D1
L502
1 2
2.2u
B4 A3 A2 A1
D3
IN-
D2 B1
IN+ OUT+
U502
B2 C1
GAIN OUT-
B3
AGC
D4
ENB
C3
END
A4 C2 C4 D1
SPK_RN
SPK_RP
- 86 - Copyright © 2013 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
C502
10u
FB501 60
60
FB503
FB501,503
C513
33p
C504
10u
FB502,504
FB502 60
FB504 60
C515
33p
L1003,L1004
L1003 33n
1
1
FEED
2
L1004 33n
1
1
FEED
2
Only for training and service purposes
SPK_RP
SPK_RN
C514
33p
SPK_LP
SPK_LN
C516
33p
ANT10000
ANT10002