GR
UNDIG Ser
vice
Chassis SE
2 - 22
Audio-Verstärker / Audio Amplifier
P
C
B
In
de
x
R
-4
P
C
B
In
de
x
R
-4
P
C
B
In
de
x
R
-4
P
C
B
In
de
x
R
-4
PCB Index R-4
R813
47K
R816
470R
C826
3n3
R819
47K
C824
3n3
R811
470R
R801
10K
C811
470n
R803
10K
R800
10K
P24V_AMP
P24V_AMP
GAIN2
GAIN1
AMP-Gain 20dB
L
L
L
26dB
H
L
30dB
H
H
36dB
H
TO SPEAKER
R804
NC
C817
1u
C814
2u2
C813
2u2
R802
NC
L801
33uH
C808
470u/35V
L802
33u
C809
470u/35V
C807
1u/25V
C806
220n
SP_RIGHT
C805
220n
SP_LEFT
C803
1u/6.3V
C800
47
0u
/3
5V
P24V
C810
470n
GAIN1
GAIN0
GAIN1
GAIN0
1
2
3
4
S800
SPEAKER
C835
2n2
GND
R826
4K7
C841
2n2
C842
3n3
C840
1u
GND
GND
C827
100u/16V
C834
100u/16V
C830
1n
C837
1n
GND
GND
GND
OUTA
1
INA(NEG)
2
INA(POS)
3
VSS
4
INB(POS)
5
INB(NEG)
6
OUTB
7
VDD
8
IC802
PT2308
GND
C839
100n
R822
10K
R823
10K
GND
C832
1n5
R814
22K
C536
1n5
R521
22K
R818
4K7
C836
3n3
C833
1u
GND
VCC5V
GND
VCC5V
C820
1u
HPL
HPR
AU_DACO_HL
AU_DACO_HR
R815
470R
R825
470R
L803
300R/100MHz
L804
300R/100MHz
C831
220p
C838
220p
GND
GND
GND
RIGHT
LEFT
GND
Right
Left
GND
S500
Headphone
R810
0R
AU_OP_L
AU_OP_R
AU_DACO_L
AU_DACO_R
PVCCL
1
#SD
2
PVCCL
3
MUTE
4
LIN
5
RIN
6
BYPASS
7
AGND
8
AGND
9
PVCCR
10
VCLAMP
11
PVCCR
12
PGNDR
13
PGNDR
14
ROUT
15
BSR
16
GAIN1
17
GAIN0
18
AVCC
19
AVCC
20
BSL
21
LOUT
22
PGNDL
23
PGNDL
24
T
H
E
R
M
A
L
25
IC800
TPA3121D2
MUTE_S
POP
VCC3.3V-ST
VCC3.3V-ST
R805
10K
Audio-ON/OFF
R806
100R
R853
(2.2K)
Audio-ON/OFF
MUTE_S
C801
C846
100u/35V
1u
C802
1u
C843
NC
R830
*
R836
2K 1%
2
3
1
IC803
ZTL431AFFTA
T800
BC847B
GND
R832
4.7k
R833
22K
R834
*
R835
1.2k %1
R837
*
R838
*
R839
330R %1
+12V
+5V_ST
P24V
AU_SW_L
AU_SW_R
VCC
GND
1
2
4
3
5
IC806
74LVC1G66GW
VCC
GND
1
2
4
3
5
IC805
74LVC1G66GW
AU_SW_L
AU_SW_R
AU_OP_L
AU_OP_R
GND
C844
1u
+5V_ST
R844
22K
P24V
R843
100R
R842
4.7k
R841
*
R840
*
D800
30V 3A
C845
100u/16V
R
84
6
10
K
R
84
5
10
K
R
84
9
4.
7K
R
84
9
4.
7K
R
85
1
22
0R
L800
120R/100MHz
R847
2.2K
1
2
3
5
4
VCC
Z
E
GND
Y
74LVC1G66GW
LS
HS
OSC/RAMP
BYPASS
AVDD
AVCC
LIN
RIN
MUTE
BYPASS
GAIN1
GAIN0
SD
BSL
PVCCL
LOUT
PGNDL
VCLAMP
BSR
PVCCR
ROUT
PGNDR
VCLAMP
AVDD
AVDD
AVDD/2
AVDD
AVDD
AVDD/2
REGULATOR
AGND
+
+
–
–
CONTROL
BIAS
THERMAL
MUTE
CONTROL
AV
CONTROL
SC
DETECT
SC
DETECT
LS
HS
VCLAMP
TPA3124D2
PT2308
-
-
+
+
2
3
5
6
V IN 1
V IN 2
V R E F
V R E F
1 8
7 4
V D D
G N D
V O U T 1
V O U T 2
16
16
15
15
%
^
Vorabversion
Preliminary Version