5-1
BKPF-L753A
5-1
Section 5
Block Diagram
1
RV1
1
RV4
1
2
1
2
2
1
2
1
2
1
1
2
2C
2C
1C
1C
2A
2A
1A
1A
CN2
CN2
CN1
CN1
CN3
CN2
CN101
CN101
CN101
CN101
IN L(+)
IN L(-)
IN R(-)
IN R(+)
DIFF
AMP
DIFF
AMP
GAIN
AMP
S1
OFF
ON
600 Ω
ON/OFF
S1
OFF
ON
600 Ω
ON/OFF
1 GAIN
1 FINE
1
RV3
2 FINE
IC5
1CMMR
1
RV2
2CMMR
POWER
AMP
POWER
AMP
AMP
INV
POWER
AMP
POWER
AMP
AMP
INV
CN101
5A
5B
CN101
5A
5B
5C
5C
6B
CN101
6A
7C
6C
CN101
9
CN3
5
17
13
18
10
14
6
18
14
17
6
9
13
10
5
4
7
10
13
5
8
11
14
CN2
OUT L(+)1
OUT L(+)2
OUT L(+)3
OUT L(+)4
OUT L(-)1
OUT L(-)2
OUT L(-)4
OUT L(-)3
CN2
GAIN
AMP
2 GAIN
IC3
18
14
14
9B
6
7
OUT R(+)3
18
14
CN101
17
5
CN2
CN101
9
OUT R(+)4
10A
6
9A
13
OUT R(-)2
9C
CN101
10
8A
10B
8
OUT R(-)4
10
9
13
10C
5
OUT R(+)1
13
CN2
10
CN101
17
5
11
OUT R(-)3
OUT R(+)2
CN2
4
OUT R(-)1
Q5,6,13,14,21,22,29,30
Q7,8,15,16,23,24,31,32
IC6
Q9,10,17,18,25,26,33,34
Q11,12,19,20,27,28,35,36
IC4
13A
CN101
13B
13C
14C
12B
12A
15B
12C
IC11
DIAG
S/N 10001-11870
15A
SDA
SCL
CARD ADD.
DIAG
Q37
D1
POWER
DETECT
5V
IN
12V
OUT
-12V
OUT
DD-36
DD1/DD36
Q1-4
+12V
-12V
CN-1855
(1/2)
CN-1856
(R)(1/2)
CN-1856
(L)(1/2)
CN-1855
(2/2)
COR3
MONO
STEREO
9B
9C
9A
10C
10A
8A
10B
CN-1856
(R)(2/2)
CN-1856
(L)(2/2)
+8dB
+4dB
0dB
-4dB
-8dB
+4dB
-4dB
-8dB
0dB
+8dB
IC2
IC1
ADA-55
COR2
COR1
6A
7C
6C
6B
CN101
CN101
7
B
7
B
8B
8B
CN1
CN1
CN3
CN2
CN1
CN1
TO/FROM
MOTHERBOARD
G
R
POWER
Overall
Overall
Overall
