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8.9. AUDIO AMPLIFIER
Amp12V
Gain = 20 log(200K/10K) = 26dB
TP01
AL1
R367
C448
AL1
1K
4.7uF/16V/Y5V
R0402
C0805
R372
33K
R0402
C458
4.7uF/16V/Y5V
C0805
TP02
AR1
R380
C470
AR1
1K
4.7uF/16V/Y5V
R0402
C0805
R385
33K
R0402
C478
Remove AC
4.7uF/16V/Y5V
pop sound CKT
C0805
DV33
+5VSB
R454
D152
1K
1N4148
R0402
R455
1N4148
1K
R456
Q133
R0402
1
1K
2N3906
1
R0402
SOT-23
D153
1N4148
1N4148
R457
+
C521
10K
470uF/16V/LowESR
R0402
CE050100
DV33SB
R392
OPCTRL1
ViewSonic Corporation
12V_Amp
+
C441
470uF/16V/LowESR
CE050100
C446
0.1uF
C0402
OUT1-
R366
200K/1%
R0402
R368
R369
R370
10K/1%
10K
10K
R0402
C452
R0402
R0402
220pF
C0402
C454
C455
47pF
R374
220pF
R375
C0402
R376
10K/1%
C0402
10K
10K
R0402
R0402
R0402
R377
200K/1%
R0402
C463
0.33uF
OUT1+
C0805
OUT2-
R378
200K/1%
R0402
R381
R382
R383
10K/1%
10K
10K
R0402
C474
R0402
R0402
220pF
C476
C0402
68pF
C477
C0402
R386
220pF
R387
R388
10K/1%
C0402
10K
10K
R0402
R0402
R0402
R389
200K/1%
R0402
12V_Amp
R453
OUT2+
+5VSB
1K
R0402
R438
NC/4.7K
ADIN1
R0402
R458
H:ON
R390
NC/4.7K
L:SLEEP
Q134
4.7K
R0402
2N3904
D148
R0402
SOT-23
NC/1N4148
AMP_MUTEN
1N4148
R391
MUTE
10K
Q123
1
R0402
2N3904
D154
C479
SOT-23
1N4148
0.1uF
1N4148
C0402
D150
HPDET
1N4148
1N4148
4.7K
R452
R0402
D151
10K
1N4148
R0402
Q128
1
1N4148
2N3904
C480
SOT-23
0.1uF
C0402
73
N3735w-2M
Confidential - Do Not Copy
12V_Amp
L162
FB/200R/2A
L0805
L164
FB/200R/2A
C444
R365
L0805
0.1uF
C445
+
10/1206
C0402
470uF/16V/LowESR
R1206
CE050100
C447
0.1uF
C0402
26
OUT1P
C449
0.22uF
2
IN1P
C0603
27
BOOT1P
29
BOOT1N
C459
0.22uF
3
IN1N
C0603
28
OUT1N
C462
1uF/16V/X7R
8
31
CDELAY
STABI1
C0603
6
I130
SO/OL
C465
18
STABI2
TFA9815
1uF/16V/X7R
C0603
7
ENABLE
SO32
23
OUT2P
C467
10
DIAG
0.22uF
C0603
11
22
TEST
BOOT2P
15
20
IN2P
BOOT2N
C475
0.22uF
C0603
21
OUT2N
14
IN2N
HS
H108
HEATSINK33X13
C439
+
C440
470uF/16V/LowESR
0.1uF
CE050100
C0402
OUT1+
L166
15uH
R371
C450
10/1206
470pF
LC050100
C451
R1206
C0402
1uF/100V
CM1006P5A
R373
C456
10/1206
470pF
L167
15uH
C457
R1206
C0402
1uF/100V
CM1006P5A
C461
OUT1-
LC050100
0.1uF/16V/X7R
C0402
C464
0.1uF/16V/X7R
OUT2+
L168
15uH
C0402
R379
C468
10/1206
470pF
LC050100
C469
R1206
C0402
1uF/100V
CM1006P5A
R384
C471
10/1206
470pF
L169
15uH
C472
R1206
C0402
1uF/100V
CM1006P5A
LC050100
OUT2-
4
OPCTRL1
9
AR1
9
AL1
9
HPDET
9
MUTE
4,9
ADIN1
2
Amp12V
2,4,7,8,12
+5VSB
2,4,7,9,12
DV33SB
2,4,5,9,11,12
DV33
2,3,4,5,6,7,8,9,11,12
GND
C453
1nF
C0603
C460
1nF
C0603
P116
1
L-
2
L+
3
R-
4
R+
B4B-XH-A
C466
4P250VM
1nF
C0603
C473
1nF
C0603
OPCTRL1
AR1
AL1
HPDET
MUTE
ADIN1
Amp12V
+5VSB
DV33SB
DV33
GND
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