LG -V909DW Service Manual page 90

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