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4. TROUBLE SHOOTING
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Copyright © 2011 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
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SPK block diagram [L1/L2/R]
*Main/Sub SPK module [SPK L1 / SPK R / SPKL2]
B3
C3
A2
B1
A6
B4
C4
B5
C5
LINEOUT1N
LINEOUT1P
LINEOUT2N
LINEOUT2P
LINEOUTFB
SPKOUTLN
SPKOUTLP
SPKOUTRN
SPKOUTRP
C821
DNI
TP809
TP812
TP808
SPK_R+
SPK_R-
SPK_L+
SPK_L-
U802
6
5
7
4
8
3
9
2
10
1
VCC
NO2
NO1
COM2
COM1
IN2
IN1
NC2
NC1
GND
1u
C817
VDD_3V3_ALWAYS
81
8
R
K0
74
Q801
D
G
S
V_POWERRAIL
SPK_L2-
SPK_L1-
SPK_L+
SPK_CHANGE
SPK_L-
Analog S/W
Audio Block
*Check Manul soldering status
*Check Manul
soldering status