72
BDP-LX55
1
2
3
4
A
B
C
D
E
F
1
2
3
4
10.15 MAIN BOARD ASSY (15/15) : MCU/SWITCH (Sheet No.16)
A
15/15
CEC1
CEC2 (siI91
3
6)
HDMI_SWITCH
PCM/DSD SWITCH 1
OES
L
L
L
H
A--B2
A--B1
OUTPUT
INPUT
H
X
DISCONNECT/ no
u
se
DSD
PCM
H
4--
3
4--1
L
6S
H
4--
3
4--1
L
6 OUT/IN
PCM
DSD
deb
u
g the softw
a
re
of Extern
a
l MCU
FFC j
a
ck
connect to QDEO2750
a
nd HDMI TX91
3
6
LRCK
cl
RESET
CI RCU I T
B
2N
1
VCC R/R to Q
3
.b
5.000V 0.772V
4.5
3
2V 0.700V
3
.
88
5V 0.600V
3
.2
3
7V 0.500V
en_
en_
J27 MT
8
555
FOR DA/C AKM44
8
0
FOR HDMI_TX SIL91
3
6
PCM/DSD SWITCH 2
F25
E26
E25
G2
8
G27
H24
E10 AOSDATA
3
B12 AOLRCK
AE6 GPIO5
AO2SDATA5_S
AO2SDATA
3
_S
AO2LRCLK_S
DSD/PCM-switch
CEC_2
3
.
3
V
FLMD0
TOOL1
AO2SDATA1
AO2SDATA
3
_S
AO2SDATA4_S
en_
en_
AO2SDATA1
TOOL0
3
.
3
VU
AOSDATA
3
/DSDR1
AOLRCK
91
3
6_HDMI_INT
RESET
SPDIF2
HDMI-CEC-switch
CEC_1
CEC_M
VCC_D
VCC_D
VCC
3
.
3
VU
3
.
3
VU
3
.
3
V
3
.
3
VU
VCC_D
3
.
3
VU
HDMI-CEC-switch
7
AO2SDATA4_S
7
WS/DR0
14
SD1/DR1
14
AO2SDATA5_S
7
AO2SDATA1
7
AO2LRCLK_S
7
CEC_M 5
CEC_1
5
CEC_2
14
SD
3
/DR2
14
MCU_SCL
14 1
3
MCU_SDA
14 1
3
91
3
6_HDMI_INT
14
DSD/PCM-switch
6
SPDIF2
7
LRCK
8
AOSDATA
3
/DSDR1
5
AOLRCK
5
SPDIF_IN/DL2
14
MCU_RESET
7
AO2SDATA
3
_S
7
R
3
60
100OHM
C
3
75
33
P/50V
C
3
75
33
P/50V
R
3
51
10K
R
3
51
10K
R
3
5
3
100
R
3
5
3
100
C
3
77
NC/22pF/50V/NP0
R
33
1
1K
R
33
1
1K
R
3
10
100
R
3
10
100
R
3
19
4.7K/1%
R
3
19
4.7K/1%
C4
8
5
10P/50V/NPO
C4
8
5
10P/50V/NPO
FB27
FB500/0.2A
FB27
FB500/0.2A
C
3
96
0.
1
u
F/
25V
C
3
96
0.
1
u
F/
25V
R
33
6
4.7K
R
3
25
2.7K
R
3
25
2.7K
C4
8
7
C4
8
7
R
33
2
0R
R
33
2
0R
FB24
FB10/2A ELN100
FB24
FB10/2A ELN100
Q9
NPN_
3
DG
3
904M
Q9
NPN_
3
DG
3
904M
U
3
1
TS5A
3
157
U
3
1
TS5A
3
157
NO
1
GND
2
NC
3
COM
4
V+
5
IN
6
C
383
1
u
F/25V
C
383
1
u
F/25V
U
3
2
TS5A
3
157
U
3
2
TS5A
3
157
NO
1
GND
2
NC
3
COM
4
V+
5
IN
6
C4
8
6
10pF/
50V/
NPO
C4
8
6
10pF/
50V/
NPO
R
3
50
1K
R
3
50
1K
Y
3
01
NC/20MHz/20PPM
Y
3
01
R
3
26
NC/
33
K
R
3
5
8
NC/1K
R
3
5
8
NC/1K
R
3
14
20K
R
3
14
20K
Q
8
NPN_
3
DG
3
904M
Q
8
NPN_
3
DG
3
904M
C
38
6
0.1
u
F/25V
C
38
6
0.1
u
F/25V
C
38
5
0.1
u
F/25V
C
38
5
0.1
u
F/25V
D21
LL414
8
D21
LL414
8
R
3
29
4.7K
R
3
29
4.7K
C
3
94
NC/0
.1
u
F/
25V/
N
C
C
3
94
NC/0
.1
u
F/
25V/
N
C
R
333
0R
R
333
0R
Q7
NPN_
3
DG
3
904M
Q7
NPN_
3
DG
3
904M
R
3
59
100R
+
10
u
F/16V/NC
CE6
8
+
10
u
F/16V/NC
CE6
8
R
3
52
1K
R
3
52
1K
R
33
5
4.7K
R
33
5
4.7K
U1
3
SN74CBT
3
257
U1
3
SN74CBT
3
257
S
1
1B1
2
1B2
3
1A
4
2B1
5
2B2
6
2A
7
GND
8
3
A
9
3
B2
10
3
B1
11
4A
12
4B2
1
3
4B1
14
OE
15
VCC
16
R19
NC/10
R19
NC/10
C4
83
27pF/
50V/
NPO
C4
83
27pF/
50V/
NPO
XP15
8
PIN/1.0mm
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
+
10
u
F/16V
CE70
+
10
u
F/16V
CE70
R
3
06
3
.
3
K
R
3
06
3
.
3
K
C
3
76
NC/22pF/50V/NP0
R1
NC
C
3
95
22
u
F/
16V/
Y
5V
C
3
95
22
u
F/
16V/
Y
5V
M
a
in Bo
a
rd Circ
u
it Di
a
gr
a
m:MCU&Switch
SII91
3
6 PINPCM
MT
8
555DSD MT
8
555
SCK
MCLK
WS/DR0
SD0/DL0
SD1/DR1
SD2/DL1
SD
3
/DR2
SPDIF_IN/DL2
DR
3
DL
3
AO2BCLK J2
8
AO2MCLK J26
AO2LRCLK H24
AO2SDATA0 F24
AO2SDATA1 E26
AO2SDATA2 F26
AO2SDATA
3
E25
SPDIF2 F25
DSD CLK J2
8
DSD MCLK J26
AO2SDATA
3
E25
AO2SDATA0 F24
AO2SDATA5 G2
8
AO2SDATA2 F26
AO2SDATA4 G27
AO2SDATA1 E26
NA
NA
NA
NA
FOR HDMI_TX SIL91
3
6
FB
3
0
33
-KLN221-NTX
27pF/25V/NPO