LG LG-D855 - Page 154

3. TROUBLE SHOOTING
- 154 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Speaker contact is OK on the contact point? check the ANT10002_TP1, ANT10003_TP2
2. Check PCB part (L6204_TP3, L6203_TP4). Speaker sound OK?
3. Check PCB part (FB6201_TP5, FB6202_TP6). Speaker sound OK?
ANT10002
EAG63652301
FEED
ANT10003
EAG63652301
FEED
L6203
100n
L6204
100n
D6700
D6701
SPK_P
SPK_N
rev.B
rev.B
12/09
12/10
12/03
(DGMS Guide)
12/20
TP1
TP2
TP4
TP3
C6928 DNI
R6120
DNI
R6117
44.2K
TP6101
C6927
22u
TP6102 TP6103
R6118 0
R6119
0
C6203
1u
C6204 1u
TP6104
R6116
2.2K
FB6202 60
60FB6201
C6207
33p
0.1
R6111
C6208
33p
0.1u
C6926
0.1u
C6210
4.7u C6209
C6202
10u
0.1u
C6201
U6200
EAN63029101
CS35L32
D6
E5
C6
B5
C5
E6A5
D5
B2
E2
C3
B3
A3
E3
B4
E4
A2
A4
D3
B1
D2
A1
C2
D4
C1
C4
E1
A6
B6
D1
SW2
FLOUT1
FLOUT2/AD0
VBST
FLINH
SW1
FLEN
GNDP1
SDA
SPKOUT+
VP
SPKOUT-/VSENSE-
SCLK
SCL
IN+
LRCK
IN-
SDOUT
RESET
GNDP2
SPKRSUPPLY
INT
IREF+
MCLK ISENSE+
GNDA
GNDPLED
VA
ISENSE-/VSENSE+
FILT+
L6201
1u
TP6105
COMMON_I2C_SCL
COMMON_I2C_SDA
+1V8_VREG_S3A
+1V8_VREG_S3A
+VPWR
AMP_I2S_DOUT
AMP_I2S_WS
AMP_I2S_SCLK
AMP_I2S_MCLK
AMP_INT_N
LINE_OUT_N
LINE_OUT_P
SPK_P
SPK_N
AMP_RESET_N
11/28
TP5
TP6