Vestax VCI-100MKII, Service Manual

Page: 35 / 63

1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D D
C C
B B
A A
Ҕ
ર კ
ဦ
Ӝ
ᆀ
Vestax
೛
ी
ހ ԃ
/
Д
/
В ԛ ೛ी ፓࢗ
A3
+3.3V
+3.3V
Monitor Output Circuit
ɀݙཀ
:
OPA
ߕ߈ޑႝ৒׷፦ፎᒧҔ
X5R or X7R
A-VCC AVCC
A-VCC
AVCC
1
2
3
4
5
6
7
8
9
10
TE5
1
4
2
5
3
6
SW300
1
2
3
VR1A
50KA
1'
2'
3'
VR1B
50KA
+
EC301
10/25
+
EC300
10/25
3 2
1
Q301
D2114
3 2
1
Q300
D2114
R313
1K
R312
1K
HTJ-064-12D
1
2
3
JK300
C301
100P
C300
100P
C305
104
C304
104
C306
104
C307
104
C308
104
C309
104
1
2
3
4
5
6
TE6
3
2
1
VR2
10KB
3
2
1
VR3
10KB
3
2
1
VR4
10KB
3
2
1
VR5
10KB
MUTE
MUTE
MUTE
MASTER_2_R
MASTER_2_R
MASTER_2_L
MASTER_2_L
MASTER_1_L
MASTER_1_L
MASTER_1_R
MASTER_1_R
From Sound Card PCB
TE5
To Control PCB
CN3
MAIN MIX VOLUME C.F. CURVE
L-CH
R-CH
L_CH
R_CH
3
2
1
IC301A
NJM4556AM
5
6
7
IC301B
NJM4556AM
8
4
IC301C
NJM4556AM
VOLUME
MIX
MAIN
C.F._CURVE
R300
10K
R301
10K
R302
47K
R303
47K
R304
18K
R305
18K
R306
47K
R307
47K
R308
68
R310
68
R309
68
R311
68
C303
DNS
C302
DNS
Front
Monitor
Level
+
EC303
47/25
+
EC302
47/25