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5-1
BKPF-L752
5-1
OVERALL Block DiagramBlock Diagram OVERALL
Section 5
Block Diagram
OVERALL
R
G
12
34
1
RV101
1
RV201
1
RV301
1
RV401
CH1 GAIN ADJ
CH2 GAIN ADJ
CH3 GAIN ADJ
CH4 GAIN ADJ
R
G
12
34
S3-3
S3-4
AUDIO_IN CH2(+)
FROM
MOTHERBOARD
DETECT
CONVERTOR
DC-DC
DAC-38
13B
13A
DD701
Vcc DOWN
13B
13A
AUDIO_IN CH1(-)
POWER
CN2
CN-1859
13C
CN1
AES/EBU_IN CH1
CN-1858
CN5
AUDIO_IN CH1(+)
13C
CN1
AUDIO_IN CH2(-)
CN2
AUDIO_IN CH4(-)
AUDIO_IN CH3(+)
AUDIO_IN CH3(-)
AUDIO_IN CH4(+)
CN1
CN4
CN1
BALANCED
GAIN AMP.
GAIN AMP.
D/A
CONVERTOR
D/A
CONVERTOR
OVERSAMPLING
FILTER
BUFFER
BUFFER
AES/EBU_IN CH2
REGULATOR
REGULATOR
+5V-A
+5V
-12V
CN1
CN1
IC104
IC103
IC103
IC303
IC303
IC501
IC1
DE-EMPHASIS
ON/OFF
DE-EMPHASIS
ON/OFF
IC2
IC3
IC3
Q1,IC4
Q2,IC5
D3
RECEIVER
AES/EBU
DIGITAL
OVERSAMPLING
FILTER
DIGITAL
LPF
LINE DRIVER
BALANCED
LINE DRIVER
1
RV3
±12V ADJ
1
RV1
+5V ADJ
BALANCED
GAIN AMP.
GAIN AMP.
LINE DRIVER
BALANCED
LINE DRIVER
IC204
IC304
IC404
LPF
+12V
Q3,4,6,8
IC502
D815
R
G
12
34
RECEIVER
AES/EBU
D814
CN-1858
CN2
CH2
AES/EBU
CH1
AES/EBU
AMP.
IC101
AMP.
IC201
AMP.
IC301
AMP.
IC401
AMP.
IC101
AMP.
IC201
AMP.
IC301
AMP.
IC401
FILTER
IC102
FILTER
IC202
FILTER
IC302
FILTER
IC402
10A10A
9A9A
7A7A
6A6A
10C10C
9C9C
7C7C
6C6C
77
66
22
11
77
66
22
1
7
6
2
1
7
6
2
11
1
RV2
+5V ADJ