56
BDP-LX55
1
2
3
4
A
B
C
D
E
F
1
2
3
4
10.7 MAIN BOARD ASSY (7/15) : AUDIO DAC (Sheet No.8)
A
7/15
01USAMP
01UAAMP2H-
3
01.DSN
STANDBY
Pl
a
ced to BOTTOM
DVDD
DAC_CS
DAC_CCLK
DAC_CDTI
AOUT_R-
AOUT_L-
MUTE_L
MUTE_R
-12VB
+12VB
MUT
AOUT_R-
-12VB
VDDLR
AOUT_L-
MUTE_2
MUTE_1
LCH
+12VB
-12V_D
RCH
MUT
D
D
V
A
D
D
V
A
D
D
V
A
D
D
V
A
+12VB
-12VB
VDDLR
+12V_D
VDDLR
DVDD
DVDD
AVDD
+12V_D
-24V_D
LRCK
5
AOSDATA0/DSDL1
5
AUDIO_RESET#
9
AOBCK/DDCLK
5
AOMCLK
5
AM
[5]
B_MU
7
DAC_CS
6
DAC_CCLK
6
DAC_CDTI
6
C
33
1
100pF/
50V/
NP0
C
33
1
100pF/
50V/
NP0
R
3
1
2.4K/1%
R
3
1
2.4K/1%
R
3
6
470
R
3
6
470
R1422
1M
R1422
1M
R146
NC
R146
NC
C49
0.
1UF/
25V/
Y
5V
C49
0.
1UF/
25V/
Y
5V
C17
10
u
F/
10V/
Y
5V
C17
10
u
F/
10V/
Y
5V
C
3
70
NC
C
3
70
NC
R
3
2
470R
R
3
2
470R
Q4
NPN_
3
DG
3
904M
Q4
NPN_
3
DG
3
904M
U5
AK44
8
0
U5
AK44
8
0
VREFLR
15
VREFLL
16
DIF0
5
TST1/CAD0
2
SMUTE/CSN
1
VREFHR
14
VDDR
1
3
DEM0/CCLK
3
DIF1/DZFL
6
PSN
8
DIF2/DINR
7
AOUTR+
10
VSS1
12
TST2/DZFR
9
AOUTR-
11
DEM1/CDT1
4
VREFHL
17
VDDL
1
8
VSS2
19
AOUTL-
20
AOUTL+
21
VSS
3
22
AVDD
2
3
MCLK
24
VSS4
25
DVDD
26
PDN
27
BICK
2
8
DSD
29
LRCK
3
0
R121
2.4K
R121
2.4K
R60
0
R60
0
R1
3
NC
R1
3
NC
Q
3
NPN_
3
DG
3
904M
Q
3
R17
100
R17
100
C
338
10pF/
50V/
NP0
C
338
10pF/
50V/
NP0
R1
33
0
R1
33
0
R220
6
8
0/1%
R220
6
8
0/1%
Q19
MC
/N
P
N
_
3
DG
3
904M
Q19
MC
/N
P
N
_
3
DG
3
904M
C
3
45
NC
C
3
45
NC
+
CE22
10
u
F/
25V/
S
M
D
+
CE22
10
u
F/
25V/
S
M
D
C54
33
00pF/
50V/
X7R
C54
33
00pF/
50V/
X7R
C15
8
20pF/
50V/
N
P0
C15
C
3
29
100pF/
50V/
N
P0
C
3
29
100pF/
50V/
N
P0
+
CE5
22
u
F/16V
+
CE5
22
u
F/16V
R49
470
R49
470
R42
100
R42
100
+
CE21
10
u
F/
25V/
SM
D
+
CE21
10
u
F/
25V/
SM
D
+
CE11
220
u
F/
25V
+
CE11
220
u
F/
25V
R142
3
NC/1M
R142
3
NC/1M
R50
8
NC
R50
8
NC
R11
0
R11
0
C
1059
NC/1
u
F/
50V/
Y5V
C
1059
NC/1
u
F/
50V/
Y5V
R
3
9
2.4K/1%
R
3
9
2.4K/1%
R47
100K
R47
100K
+
-
U17B
NE55
3
2
+
-
U17B
NE55
3
2
5
6
7
8
4
R12
NC
R12
NC
C
33
6
0.
1UF/
50V/
NP0
C
33
6
0.
1UF/
50V/
NP0
C412
NC
C412
NC
R55
1M
R55
1M
C5
3
33
00pF/
5
0V/
X7R
C5
3
33
00pF/
5
0V/
X7R
C74
33
pF/
50V/
NP0
C74
33
pF/
50V/
NP0
C
3
71
10
u
F/
10V/
Y
5V
C
3
71
10
u
F/
10V/
Y
5V
C
33
0
NC/
100pF/
5
0V/
NP0
C
33
0
NC/
100pF/
5
0V/
NP0
Q20
NC/NPN_
3
DG
3
904M
Q20
NC/NPN_
3
DG
3
904M
+
CE7
22
u
F/16V
+
CE7
22
u
F/16V
R
3
7
2.4K/1%
R
3
7
2.4K/1%
R1421
NC/1M
R1421
NC/1M
C16
8
20pF/50V/NP0
C16
8
20pF/50V/NP0
C
1060
1000PF/
50V/
Y5V
C
1060
1000PF/
50V/
Y5V
R219
220/1%
R219
220/1%
R147
NC
R147
NC
C1
0.
1U
F/
25V/
Y
5
V
C1
0.
1U
F/
25V/
Y
5
V
+
CE1
220
u
F/
25V
+
CE1
220
u
F/
25V
R5
3
100
R5
3
100
C
33
5
NC/10
0
pF
/5
0
V
/NP0
C
33
5
NC/10
0
pF
/5
0
V
/NP0
R27
2.0K/1%
R27
2.0K/1%
R56
1M
R56
1M
C27
8
20pF/
50V/
N
P0
C27
8
20pF/
50V/
N
P0
R
3
0
100K
+
-
U17A
NE55
3
2
+
-
U17A
NE55
3
2
3
2
1
8
4
R51
100
R51
100
R
3
5
150/1%
R
3
5
150/1%
C
33
2
NCC
33
2
NC
R509
NC
NC
R29
470R
R29
470R
C
33
4
N
C
/100pF/
50V/
N
P0
C
33
4
N
C
/100pF/
50V/
N
P0
C2
3
0.
1U
F/
25V/
Y
5
V
C2
3
0.
1U
F/
25V/
Y
5
V
R1
3
1
0
R1
3
1
0
C
3
7
3
10
u
F/
10V/
Y
5V
C
3
7
3
10
u
F/
10V/
Y
5V
+
CE
8
100
u
F/
25V
+
CE
8
100
u
F/
25V
C
3
2
8
NC/1
0
0
p
F
/5
0
V
/NP
0
C
3
2
8
NC/1
0
0
p
F
/5
0
V
/NP
0
R46
2.0K/1%
R46
2.0K/1%
R59
1M
R59
1M
R24
2.0K/1%
R24
2.0K/1%
R4
3
2.4K/1%
R4
3
2.4K/1%
C50
10
u
F/
10V/
Y5V
C50
10
u
F/
10V/
Y5V
ZD2
ZMM12V
ZD2
ZMM12V
C179
0.1
u
F/25V/Y5V
C179
0.1
u
F/25V/Y5V
R
33
150/1%
R
33
150/1%
U4
AS1117
U4
AS1117
ADJ
1
IN
3
OUT
2
OUT1
4
C524
NC/
33
pF/
50V/
NP0
C524
NC/
33
pF/
50V/
NP0
C21
0.
1UF/
25V/
Y
5V
C21
0.
1UF/
25V/
Y
5V
+
CE4
100
u
F/
25V
+
CE4
100
u
F/
25V
C
33
7
100pF/
50V/
NP0
R1
8
2.0K/1%
R1
8
2.0K/1%
R5
8
1M
R5
8
1M
C
106
3
NC/1
0
P
/5
0
V
/Y
5
V
C
106
3
NC/1
0
P
/5
0
V
/Y
5
V
R1420
1M
R1420
1M
C
33
8
20pF/50V/NP0
C
33
8
20pF/50V/NP0
R1
3
6
2.4K
R1
3
6
2.4K
+
CE2
220
u
F/
25V
+
CE2
220
u
F/
25V
M
a
in Bo
a
rd Circ
u
it Di
a
gr
a
m:A
u
dio_DAC
PCM DSD
AOLRCK B12
AOSDATA
3
/DSDR1 E10
AOSDATA0/DSDL1
/AOSDATA0 C11
AOBCK/DDCLK
/AOBCK A12
AOMCLK
/AOMCLK C12
DAC_CS
/SFCS AH5
DAC_CCLK
/SFCK AF5
DAC_CDTI
/SFDI AG5
AKM44
8
0
LRCK
DSD
BICK
MCLK
SMUTE/CSN
DEMO/CCLK
DEM1/CDT1
PCM/DSD SWITCH FOR DA/C AKM44
8
0
R26 150/1%
R2
8
150/1%