Service manual

8.11. AUDIO AMPLIFIER
2006/02/15_modified
Gain 24dB
L,L H,H
36dB
L,H
18dB30dB
H,LVOL[1:0]
AO1AUXL
AO1AUXR
MUTE
HPDET
MUTEC
MUTE
AO1AUXR
AO1AUXL
HPDETGND
+12V
+5VSB
Amp12V OPCTRL6
GPIO_20
GPIO_20
OPCTRL6
DV33SB
MUTE11
MUTE11
AO1AUXL11
AO1AUXR11
HPDET11GND2,3,4,5,6,7,8,9,10,11,13,14
+12V2,11,13
+5VSB2,9,10,13,14
Amp12V2 OPCTRL64
GPIO_204
DV33SB2,4,5,6,9,11,13,14
12V_Amp
12V_Amp
12V_Amp
REF5V
REF5V
Amp12V
+5VSB
+5VSB
DV33SB
L162
FB/200R/2A
L0805
Q125
2PD601AR
SOT-23
1
2 3
C464
0.1uF
C0805
R415
4.7K
R0603
C468
1uF/16V/Y5V
C0603
R342 10K
R0603
R329
NC
R0603
L153
FB/200R/2A
L0805
C478
0.1uF
C0603
R327
0
R0603
R331
33K
R0603
R336
300K
R0603
R341 4.7K
R0603
R328
0
R0603
L154 15uH
LC050100
+
C459
1000uF/16V/LowESR
CE050100
R338
33K
R0603
+
C466
4.7uF/50V
CE025050
P112
CON4 P=2.5mm
1
2
3
4
L-
L+
R-
R+
R332
NC
R0603
C461
0.1uF
C0603
L157 FB/200R/2A
L0805
R343
NC
R0603
C467
0.1uF
C0603
R335
300K
R0603
C506
1uF/16V/X7R
C0603
R409
1K
R0603
+
C475
4.7uF/50V
CE025050
C470 1uF/16V/Y5V
C0603
R330
1K
R0603
C472
10uF/10V/Y5V
C0805
R334
NC
R0603
L158 FB/200R/2A
L0805
C477
0.1uF
C0805
R410
NC
R0603
L151
FB/200R/2A
L0805
R344
820K
R0603
R333
NC
R0603
C463
0.33uF/63V
C462
0.1uF
C0805
Q131
2N3904
SOT-23
1
2 3
I125
YDA138
SSOP42
1
2
3
4
5
6 7 8 9 10 11 12 13 14 15 16
37
38
39
40
41
22
23
24
25
26
27
28 29 30 31 32
17
18
19 20 21
42 36 35 34 33
43
HPOR
AVSS
VSSBGR
VREFR
INR
MUTEN PVDDPR OUTPR PVSSR PVSSR PVSSR PVSSR PVSSR OUTMR PVDDMR PROTN
HP
INL
VREFL
PVDDREG
REFA
DVDD
MODE0
MODE1
MODE2
VOL0
VOL1
PVDDML
OUTML
PVSSL PVSSL PVSSL
SLEEPN
DVSS
CKIO XO XI
HPOL
PVDDPL
OUTPL
PVSSL PVSSL
EARTH
R337
1K
R0603
+
C465
4.7uF/50V
CE025050
L155 15uH
LC050100
+
C476
4.7uF/50V
CE025050
R340
10K
R0603
C473
0.1uF
C0805
C471
1uF/16V/Y5V
C0603
C474
0.33uF/63V
L152 15uH
LC050100
C460
0.1uF
C0603
R339
100K
R0603
C469
1uF/16V/Y5V
C0603
L156 15uH
LC050100
R326
0
R0603
Q124
2N3904
SOT-23
1
2 3
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