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Sony BKPF-L752 Maintenance Manual page 23

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

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