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Sony BKPF-L752 Maintenance Manual page 30

Audio d/a converter board
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BKPF-L752 (SY) : S/N 10001 and Higher
1
2
3
4
5
A
B
DAC-38 (5/5)
DAC-38 (5/5)
!
L1
+5VIN
10uH
PS1
C701
C702
47uF
0.1uF
25V
C707
1uF
50V
GND
GND
L2
10uH
Q8
2SA812-T1-M5M6
+12V
R723
10k
R724
10k
R721
R719
33k
15k
Q4
2SC1623-T1-L5L6
Q3
R722
2SC1623-T1-L5L6
1k
GND
R720
D3
33k
CL-155UR/G-DT
GND
GND
-12V
Q1
2SB1204S-FA-TL
C714
R709
IC4
10uF
220
M5237ML-TP1
16V
1
IN
REF
GND
3
GND-A
Q2
2SB1204S-FA-TL
C712
C715
R710
C713
IC5
47uF
10uF
220
0.1uF
16V
25V
M5237ML-TP1
GND
GND
1
REF
IN
GND
3
GND
6-6
C
D
TP3
+12V
L3
+12V
10uH
DD701
C709
C722
C703
C705
220uF
1
6
220uF
+VIN
220uF
0.1uF
+VOUT
16V
16V
16V
2
4
-VIN
COM
5
3
VSET
C723
C710
C704
-VOUT
C706
GND-A
220uF
220uF
220uF
0.1uF
16V
7 8
16V
16V
RV3
L4
GNDGND
TP4
20k
10uH
1
3
-12V
-12V
R727
E8
43k
2
1 RV3:±12V ADJ.
GND
Q6
2SC1623-T1-L5L6
E-POWER
4
+
-12V
R725
1k
TP1
+5V-A
GND
1 RV1:+5V-A ADJ.
+5V-A
R718
100
C718
C716
RV1
C720
330uF
1k
0.001uF
0.1uF
6.3V
R711
GND-A
GND-A
15k
2
R712
R715
5.6k
NM
TP2
+5V
1 RV2:+5V ADJ.
+5V
R717
100
C719
C717
RV2
C721
330uF
1k
0.001uF
0.1uF
6.3V
R713
GND
GND
15k
2
R714
R716
5.6k
NM
6-6
E
F
DAC-38 (5/5)
BOARD NO. 1-674-129-11
LOT NO. 902-
BKPF-L752
G
H

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