LG KF750 Service Manual page 116

S p e a k r e A m . p
TP29_BB
C531, c532
A C C _ G P 1 3 _ S P K _ A M P _ E N
C 5 3 1 4 7 n
S P K R P
C 5 3 2 4 7 n
S P K R N
5
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Only for training and service purposes
TP30_BB
U500
2
1
R 5 1 7 1 % 3 9 K
B Y P A S S G N D
C 1 B
_ S H U T D O W N V O -
B 1 A
R 5 2 0 1 % 1 0 K
0 6 0 3
N I + V O +
C 2 B
R 5 2 1 1 % 1 0 K
0 6 0 3
N I - V D D
C 3 A
U 5 0 0 T P A 6 2 0 5 A 1 Z Q V
0 6 0 3
R 5 2 4 1 % 3 9 K
Measured 1khz Sine Wave Signal
4. TROUBLE SHOOTING
V B A T
C 5 2 5
2 2 . u
R 5 1 8 1 % 1
B E A R P
2
R 5 1 9 1 % 1
B E A R N
1
3
3
R
A C C _ G P 2 7 _ A M P _ S W _ E N
- 117 -
TP31_BB
3
U501
U 5 0 1 F S A 2 2 6 8 T U M X
5 1 0 8
1 B 0 1 A
1 7
1 B 1 S 1
5 2 5
2 B 0 2 A
V B A T
3 6
2 B 1 S 2
4 9
G N D V C C
0 6 0 3
LGE Internal Use Only
S P K _ R C V +
S P K _ R C - V
C 5 3 5
1 0 n
0 6 0 3