TCL L40B2800 Service Manual page 29

MUTE Circuit
AMP_MUTE
Power AMP TPA3113D2
12VA
SD
close to SOC
R611
R635 AMP_L
100R
HP_L
C628 1U
HP_L
1K
C604
1000P
C630 R636
6.8N CLOSE AMP IC
R612
10R
NC/100K
1U/50V
C636
DGND
C605 1U
C606 1U
R614
10K
AMP_R
R620
HP_R
C629 1U
HP_R
1K
R615
100R
C609
1000P
C631 R621
6.8N NC/100K
CLOSE AMP IC
DGND
3_3VSB
3_3VSB
T MUTE
SD
R606
C
10K Q602
B
BT3904
E
DGND
DGND
R629
L600
100K
12VA 392170
U600
C610
C611
R610
1000P 0.1U
1K
1 28
SD PVCCL2
2 27
C612
FAULT PVCCL1
0.22U
10R
3 26
C602 1U DGND
LINP BSPL R622
C603 1U 4 25
C613
LINN OUTPL
GAIN0 5 24 330P
GAIN0 PGND2
DGND 10R
GAIN1 6 23
C618
GAIN1 OUTNL R616
0.22U
7 22 C616
DGND
AVCC BSNL
330P
C619
8 21
DGND
AGND BSNR R617 220R/NC
0.22U
R613 9 20 10R
C620
L606
GVDD OUTNR
10K
22UH
10 19
330P
PLIMIT PGND1
DGND 10R
11 18
C607 1U
RINN OUTPR R628
220R/NC
0.22U
12 17
C608 1U C624
L608
RINP BSPR
DGND 330P
13 16 C623 22UH
NC PVCCR2
DGND
12VA
14 15
PBTL PVCCR1
C625
C626
1000P
0.1U
DGND TPA3113D2
DGND
DGND
12V
3_3VSB
R631
10K
L601 GAIN0
22UH
L602
OUTLP
220R/NC
R633
C614 NC/0R
L603 0.1U/50V
22UH 0.1U/50V C617
L604
OUTLN
DGND DGND
220R/NC
L605
OUTRN
C621 0.1U/50V
0.1U/50V
C622
L607
OUTRN
OUTRP
DGND
OUTRP
OUTRN
OUTLP
OUTLN
GAIN1 GAIN0 GAIN
L L 20dB
R632 L H 26dB
NC/10K H L 32dB
H H 36dB
GAIN1
R634
0R
C641
0.1U
OUTRP OUTRN
C642
OUTLP 0.1U
OUTLN
OUTRP
T T
R+
1
R- RED
2
P600
OUTLN OUTLP
T T
L+
1 WHITE
L-
2
P601