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12.4. A-Board (3/16) Schematic Diagram
A-BOARD (3/16)
!
K1KY06BA0387
TO SPEAKER
A12
1
L-
2
L+
3
R+
4
R-
5
6
HP_LOUT
TO 4/16
HP_ROUT
TO 4/16
MONITOROUT_MUTE
19
20
L4901
G1C100MA0533
C4921
25V
1u
VJ4911
P
VJ4901
P
C4922
25V
VJ4912
1u
P
VJ4902
TP4901
P
L4902
VJ4913
G1C100MA0533
TP4902
P
VJ4903
TP4903
P
L4903
VJ4904
TP4904
G1C100MA0533
P
VJ4914
P
C4923
25V
1u
C4924
25V
1u
L4904
G1C100MA0533
VJ4915
TP4905
P
L4905
VJ4905
G1C150MA0533
P
C4946
0.47u
25V
C4947
0.47u
25V
TP4906
L4906
VJ4906
G1C150MA0533
P
VJ4916
P
C4971
4V
100u
P_HP1_L
TO 13/16
P_HP1_R
C4972
4V
100u
R4974
R4973
10k
10k
Q4971
B1ABKE000001
R4976
100
Q4972
TO 7/16
HP_MUTE
R4977
R4975
B1ABKE000001
MUTE
100
1.2k
OPERATE
EXT_MUTE
TO 7/16
R4980
MUTE
3.3k
SUB3.3V
OPERATE
OPERATE
R4981
MUTE
10k
Q4981
TO 13/16
P_A_MUTE
B1ABCE000015
R4982
MUTE
47k
OPERATE
21
22
P15V
R4900
0
C4900
35V
10u
AUDIO AMP
IC4900
C1AB00003871
C4903
16V
0.1u
SUB3.3V
C4901
35V
10u
C4904
16V 0.1u
17
8
C4905
VCCP1
REG3
16V 0.1u
R4917
18
GNDP1
7
4.7k
FILA
PLIMT0
REG_G
C4906
19
6
16V 0.1u
PLIMT1
MUTEX
20
5
R4918
R4915
4.7k
CLK_MOD
RSTK
S
21
33
4
R4916
ERROR
LRCLK
S
22
3
GNDP2
MCLK
VCCP2
BLCK
23
2
24
1
C4909
35V
10u
C4907
35V
10u
AUDIO AMP
IC4901
C1AB00003871
C4933
16V
0.1u
C4931
10u
35V
C4934
17
8
16V 0.1u
C4935
VCCP1
REG3
16V 0.1u
18
GNDP1
7
R4933
FILA
PLIMT0
REG_G
C4936
S
19
6
16V 0.1u
R4934
PLIMT1
MUTEX
S
20
5
R4935
CLK_MOD
RSTK
S
21
33
4
R4936
ERROR
LRCLK
S
22
GNDP2
3
R4950
MCLK
VCCP2
BLCK
P
23
2
R4951
P
24
1
C4937
10u
35V
23
24
48
R4911
S
R4912
S
R4901
R4903
68
VARAY405
D1HY6804A012
P_ALRCKO
P_ASDOUT0
P_ABCKO
P_ASMCK
R4931
R4902
S
R4932
68
P_ASDOUT1
S
R4904
VARAY405
TO 13/16
R4907
AMP_XRST
1k
P_PORT21
SUB3.3V
OPERATE
R4955
10k
R4956
SOS
SOUND_SOS
1k
P_STMGPIO7
SUB3.3V
R4906
8.2k
OPERATE
MUTE
R4908
AMP_MUTE
1k
TO 7/16
AMP_STBY
25
26
27
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