Tascam 302MKII Service Manual page 28

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302
SCHEMATIC DIAGRAM
1 2
to MAIN PCB P107
P801
SLV(1)
REC Sig Lch 1
GND
REC Sig Rch 1
LINE OUT Rch 1
LINE OUT Lch 1
A
DUB
MST
PB IN Rch 1
SLV
10P-JQ
to MAIN PCB P108
P802
B
LINE OUT Rch 2
REC SIG Rch 2
REC Sig Lch 2
to LEVEL VR Rch 2
to LEVEL VR Lch 2
5P-JQ
C
D
4052
U801,802,901
Vcc 16
-7V
7 Vee
GND 8
Vss
Op Amp
U803,804,903,904
Vcc 8
E
-7V
4 Vee
（Page 3/7）
II
MK
ANALOG SW PCB
3
1
2
3
4
5
6
7
U803A NJM4558D
8
U801 E
R801 3
9 12 13
X0 X
14 2
X1
10 15 3
18K
X2 Y
11 R804
X3
R802 R803
15K
1 47K
Y0
5
Y1
2
18K R805
Y2
4 10K
Y3
6
INH
10
A
9 U803B NJM4558D
B
5
BU4052
6
R808
R807 15K
47K
R809
10K
U802 D
12 13
X0 X
14
X1
15 3
X2 Y
11
X3
1
Y0
5
Y1
2
Y2
1 4
Y3
6
INH
2
10
A
9
3 B
BU4052
4
5
COM
U902 G
13 12
X X0
14
X1
3 15
Y X2
11
X3
1
Y0
5
Y1
2
Y2
4
Y3
6
INH
10
A
9
B
BU4052
Q901
DTC124ES
R901 U901 F U903A NJM4558D
3
18K
12 13
X
X0
14 2
X1
15 3
X2 Y
11 R903
X3
R904
R902 18K 47K
15K
1
Y0
5
Y1
2 R905
Y2
4 10K
Y3
6
INH
10
A
9
U903B NJM4558D
B
5
BU4052
6
R908
15K
C903
R907
47K R909
+7V
10K
R915 100
R815 100
U905 BA335
C905
1/50
+7V
R917 R918
220K 22K
R916
33K C906 C907
0.22/50 0.1/50
4 5
U804B
6
7
5
NJM4558D U804A
2
1
3
R806
D801 68 NJM4558D
1
1SS133
C801 5P D803
1SS133
C802
4.7/50 D804
1SS133 R812
R811 330K
330K
D802 R810 68
7
1SS133
C803 5P
C804
4.7/50
R813 100 LINE OUT Lch1
R814 100 LINE OUT Rch1
+7V
C808
10/25
C809
10/25
-7V
MST
R913 100
D903 R914
100
1SS133
D904
1SS133
U904A
2
1
3
U904B
NJM4558D 6
7
5
D901
R906
1 NJM4558D
68
1SS133
C901 5P
R911
330K
C902
4.7/50
R912
D902 R910 330K
7
1SS133 68
5P
C904
4.7/50
U805 BA335
C805
1/50
R817 R818
220K 22K
R816 C806 C807
33K 0.22/50 0.1/50
Double Auto Reverse Cassette Deck
6 7
to PHONE PCB J601
1 to HEAD PHONE Amp Lch 1
2
to HEAD PHONE Amp Lch 2
3
to HEAD PHONE Amp Rch 1
4
to HEAD PHONE Amp Rch 2
5
+7V
6 GND
7
-7V
P805
7P-PH
P810
3P-PH
1
2
NC
3
P809
2P-PH
1
2
P808
2P-PH
1
2
P804
1
LINE IN Lch 2
2 1/2
to MAIN PCB P110
3 PARA
4
+7V
5 -7V
6
PB IN Rch 2
7 +5V
7P-JQ
to MAIN PCB P109
P803
1
LINE OUT Lch 2
2
to LEVEL VR Rch 2
(LINE OUT Rch 1)
3
to LEVEL VR Lch 2
(LINE OUT Lch 1)
4
LINE IN Lch 1
5
LINE IN Rch 1
6
LINE OUT Rch 2
7
LINE OUT Lch 2
8
LINE IN Rch 2
8P-JQ
to CONTROL PCB J507
P806
1
to METER A/D Rch 2
2 to METER A/D Lch 2
3
to METER A/D Rch 1
4 to METER A/D Lch 1
5
CPS 1
6
CPS 2
7 MST
8 SLV
9 COMMON/SEPARATE
10
COMMON1
11 SLV(1)
11P-PH
302
1 st Issue; January 2002
II
MK