56
&
Service Manual
• IN_AB,
ANALOG PCB (1/4)
22KJ
R520
100PF
C507
100KJ
R518
910J
R51
1
7.5KJ
R513
0.039UF-CHA
C501
1/50MV
C509
100KJ
R1
11
0.01UF
C515
P48
2.2/35MV
C514
100KJ
R1
14
100KJ
R1
12
1MJ
R502
0.047UF
C502
91J
R1
17
1/50MV
C510
100KJ
R504
15KJ
R523
10/16MV
C109
1MJ
R501
3.3KJ
R508
0.0033UF-CHA
C512
MSJ-064-20A
J101
1
5 3
2 4
S101
16
17
18
19
20
2.2/35MV
C513
47J
R505
22/16MVKBP
C103
1.3KJ
R108
4.7KJ
R1
13
S101
21
22
10KJ
R524
1KJ
R503
22/16MVKBP
C104
MLB-0120L
L101
12
1.5KJ
R512
33KJ
R521
22PF
C504
22PF
C107
R107
78
2.2KJ
R507
22PF
C505
4.7/25MV
C506
0.001UF-CHA
C516
0.0033UF
C51
1
1.3KJ
R109
1SS133
D502
1
2
560J
R506
NON
C503
100KJ
R105
100KJ
R106
1SS133
D501
1
2
10/16MV
C108
MLB-0120L
L102
12
DGND
910J
R519
1.5KJ
R522
100KA
R509
1
3
2
0.022UF-CHA
C517
1SS133
D503
1
2
MSJ-064-20A
J103
1
5
3
2
4
1SS355
D504
1
2
NJM2068M
U101
2
1
3
NJM2068M
U501
5
7
6
NJM2068M
U501
3
1
2
1KJ
R514
82KJ
R517
82KJ
R515
12KJ
R516
470J
R1
16
470PF
C1
10
A+15
DST_GND
R509
45
DST_GND
DST_GND
AGND
DAN217
D101
1
2
3
DAN217
D102
1
2
3
A+15
A-15
DST_GND
NJM2068M
U101
6
7
5
NON
C106
100KJ
R1
10
22PF
C105
JY
-5033
J102
12
3
47/50LLA
C101
47/50LLA
C102
6.8KD
R101
6.8KD
R102
100KJ
R103
100KJ
R104
100PF
C508
MLB-0120L
L201
12
NJM2068M
U201
2
1
3
100KJ
R210
100KJ
R21
1
6.8KD
R202
6.8KD
R201
NON
C206
A+15
47/50LLA
C202
1.3KJ
R209
100KJ
R205
22/16MVKBP
C204
100KJ
R204
R207
78
47/50LLA
C201
22PF
C207
1.3KJ
R208
MLB-0120L
L202
12
JY
-5033
J202
12
3
DAN217
D202
1
2
3
100KJ
R203
A-15
MSJ-064-20A
J201
1
5 3
2 4
22/16MVKBP
C203
22PF
C205
100KJ
R206
DAN217
D201
1
2
3
1/50MV
C1
16
AGND
1/50MV
C216
AGND
P48
100KJ
R1
15
NON
C1
11
100KJ
R215
NON
C21
1
NJM2068M
U201
6
7
5
470PF
C210
10/16MV
C209
470J
R216
91J
R217
AGND
0.01UF
C1
17
0.01UF
C217
2SK209GR/BL
Q501
3
1
2
S101
1
2
3
4
5
SLIDE-SSSF1_4-3-L09
S101
11
12
13
14
15
S101
6
7
8
9
10
AGND
500KCC
R107
13
2
500KCC
R107
46
5
500KCC
R207
13
2
500KCC
R207
46
5
INPUT_SEL[0] INPUT_SEL[1]
COLD_A
HOT_A
DIST_IN
DIST_OUT
CLEAN_IN
CLEAN_OUT
10/16MV
C1
14
0.01UF
C1
12
AGND
A+15
NJM2068M
U101
8
4
A-15
0.01UF
C1
13
10/16MV
C1
15
HOT_B COLD_B
0.01UF
C212
0.01UF
C213
NJM2068M
U201
8
4
A+15
AGND
10/16MV
C214
A-15
10/16MV
C215
INPUT_B
VCOM_B
VCOM_A
INPUT_A
G = -14dB ~ 38dB
INSER
T
DIST
OR
TION
ADDA
ADDA
CLEAN
-CLEAN-
-DIST -
- OFF -
-CLEAN-
-DIST -
- OFF -
-CLEAN-
-DIST -
- OFF -
ADDA
Full Scale Input V
o
ltage : 0.56V
A
= 2.8Vpp
Full Scale Level : - 0.09dBV
REF-12dB Level : -12.09dBV
fc=34KHz
-48 ~ +4dBu
A
channel
INPUT
LEVEL
B channel
A
capacitor for filtering must be placed
close to the
AD conveter IC.
NJM2068M
U501
8
4
A-15
10/16MV
C520
A+15
0.01UF
C518
0.01UF
C519
DST_GND
10/16MV
C521
Splitted and wired from Power
Supply connector
.