Speaker Amplifier - Toshiba 26SL738G Service Manual

A_MUTE
LO = > MUTE
AUDIO_MUTE
HI = > UN-MUTE
+5VSB
R729
15K 1/10W
10K 1/10W
SP_Amp_MUTE Q133
BC847C
R730
R746
1K 1/10W
BAS316
+5VSB
D102
+ C322
R361
D103
47uF/16V
1K 1/10W
+5V_SW
1
R362
ZD113 10K 1/10W
PDZ3.9B A_MUTE
2
R363
470R 1/10W 1% BAV70
Q117
MMBT3904
3,6,14,16,17
R365
3,4,5,6,7,8,9,10,12,13,14,15,16,17
10K 1/10W
A
Audio Mute Control
7 AUDIO_MUTE
Audio Speaker Amp
6 SP_Amp_MUTE
9 A_MUTE
AGAIN1 GAIN
AGAIN0
0
0 20dB=10
1 26dB=20
0
32dB=37.5
1 0
1
1 36dB=60
+5VSB
1
D109

Speaker Amplifier

3
NC/10K 1/10W
R725
2
R726
NC/0R05OHM1/16W
NC/BAV70
NC/10K 1/10W
Q132
R728
R711
NC/BC847C
0R01 1/10W
+5VSB
R727
20K 1/10W
R360
10K 1/10W
Q116
3
BC847C
+5VSB
+5VSB
GND
9 SPEAKER_L
9 SPEAKER_R
AUDIO_MUTE
SP_Amp_MUTE
A_MUTE
5W
R686,R767,R691,R768=11.3k
R686,R767,R691,R768=3.9k
10W
A
+5VSB
U602
R756
100K 1/10W
1
SDZ
R766
0R01 1/10W
2
FAULTZ
R686
220N 25V
C706
3
LINP
3.9K 1/10W
R767 220N 25V
C709
4
LINN
3.9K 1/10W
AGAIN0
5
GAIN0
AGAIN1
6
GAIN1
+24V
R758
7
AVCC
10 OHM +-5% 1/4W
C714
1uF 50V
8
AGND
C716
1uF 25V
9
GVDD
1uF 25V
R366
C718
3.3K +-1% 1/10W
10
PLIMIT
R761 NC/10K 1/10W
R768 220N 25V
C721
11
RINN
3.9K 1/10W
R691 220N 25V
C724
12
RINP
3.9K 1/10W
+5VSB
R764
R763 13
NC
NC/10K 1/10W
10K 1/10W
AGAIN0
AGAIN1
14
PBTL
R371
R765
NC/0R01 1/10W
0R01 1/10W
A
29
Thermal Pad
28
PVCCL
C704
C705
1N 50V
0.1uF 50V
27
PVCCL
26
BSPL
C708
0.22uF 50V
25
OUTPL
24
PGND
23
OUTNL
C712
0.22uF 50V
22
BSNL
21
BSNR
C717
0.22uF 50V
20
OUTNR
19
PGND
C722
18
OUTPR
0.22uF 50V
17
BSPR
16
PVCC
C726 C725
0.1uF 50V
1N 50V
15
PVCC
TPA3110D2
MAIN [9] MUTE/SPEAKER/AMP
+24V
1 2
FB140 220R/2000mA
C786 C785
+
4.7UF 50V 100UF 35V
L123 33uH
C710
330N 50V
C711
330N 50V
L124 33uH
CN128 A
4
L+
NEAR OP AMP 3
L-
2
R+
1
R-
L125 33uH
C719
330N 50V CONN
C720
330N 50V
L126 33uH
+24V
1 2
FB141 220R/2000mA
C787 C728
+
4.7UF 50V 100UF 35V