Toshiba 32SL738G, Service Manual

Page: 38 / 82

A A
A
A
Speaker Amplifier
HI
=
>
U
N
-M
U
T
E
LO = > MUTE
NEAR OP AMP
0
GAIN
1
1
26dB=20
Audio Mute Control
1
32dB=37.5
0
0
Audio Speaker Amp
AGAIN1
36dB=60
0
1
AGAIN0
20dB=10
R+ R-
L- L+
10W
5W
R686,R767,R691,R768=11.
3
k
R686,R767,R691,R768=3.
9
k
A
_
M
U
T
E
AUDIO_MUTE
SP_Amp_MUTE
A_MU
T
E
AGAIN1 AGAIN0
A
_
M
U
T
E
AUDIO_MUTE
SP_Amp_MUTE
AGAIN0
AGAIN1
SPEAKER_L
9
SPEAKER_R
9
AUDIO_MUTE
7
SP_Amp_MUTE
6
A
_
M
U
T
E
9
GND
3,4,5,6,7,8,9,10,12,13,14,15,16,17
+
5
V
S
B
3,6,14,16,17
+
5
V
S
B
+
5
V
S
B
+
5
V
_
S
W
+
5
V
S
B
+
5
V
S
B
+
5
V
S
B
+
5
V
S
B
+
5
V
S
B
+
2
4
V
+
2
4
V
+
2
4
V
R362
10K 1/10W
L123
33uH
R729 15K 1/10W
C725 0.1uF 50V
C714 1uF 50V
R711
0R01 1/10W
C708
0.22uF 50V
L12
4
33uH
C720
330N 50V
C787 4.7UF 50V
U602
TPA3110D
2
1 2 3 4 5 6 7 8 9
10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15 29
SDZ FAULTZ LINP LINN GAIN0 GAIN1 AVCC AGND GVDD PLIMIT RINN RINP NC PBTL
PVCCL PVCCL
BSPL
OUTPL
PGND
OUTNL
BSNL
BSNR
OUTNR
PGND
OUTPR
BSPR PVCC PVCC
Thermal Pad
D109
NC/BAV70
3
1 2
C704
1N 50V
Q116 BC847C
R765
0R01 1/10W
C722 0.22uF 50V
C712 0.22uF 50V
R363
470R 1/10W 1%
R727
20K 1/10W
R366
3.3K +-1% 1/10W
R686
3.9K 1/10W
R763
10K 1/10W
R766 0R01 1/10W
C721
220N 25V
L12
5
33uH
D103 BAV70
3
1 2
R761
NC/10K 1/10W
R361
1K 1/10W
CN128 CONN
1 2 3 4
C718
1uF 25V
R360
10K 1/10W
C710
330N 50V
R726
NC/0R05OHM1/16W
R768
3.9K 1/10W
R746
1K 1/10W
R758
10 OHM +-5% 1/4W
R728
NC/10K 1/10W
FB141
220R/2000mA
1
2
Q117 M
M
B
T
3
9
0
4
C709
220N 25V
C711
330N 50V
C717
0.22uF 50V
R764
NC/10K 1/10W
C726
1N 50V
C716 1uF 25V
Q132
NC/BC847C
C706
220N 25V
+
C728 100UF 35V
C705 0.1uF 50V
FB140
220R/2000mA
1
2
R365 10K 1/10W
Q133 BC847C
L12
6
33uH
D102
BAS31
6
R725
NC/10K 1/10W
C719
330N 50V
C724
220N 25V
C786 4.7UF 50V
R371
NC/0R01 1/10W
+
C785 100UF 35V
+
C322 47uF/16V
R691
3.9K 1/10W
R756 100K 1/10W
ZD113
PDZ3.9B
1 2
R730
10K 1/10W
R767
3.9K 1/10W
MAIN [9] MUTE/SPEAKER/AMP