DPX-MP4070/MP4070B
20
A
B
C
D
E
1
2
3
4
5
6
7
CN250
DOLBY
ADJ(R)
ADJ(L)
DOLBY
CN251
DOLBY/EQ/MS
T
AKE UP
SUPPL
Y
M
MAIN MO
T
OR(CM1)
M
SUB MO
T
OR(CM2)
Lch REV
C-MECHA
Rch REV
Lch FWD
Rch FWD
2/3
MAIN UNIT-
CN351
MAIN UNIT-
CN301
2/3
CXA2560Q
:
IC250
SIGNAL LINE
B LINE
GND LINE
HD1
(494)
(494)
20
19
18
17
16
15
14
13
12
11
31
32
33
34
35
36
37
38
39
40
MSMODE
DRSW
TA
PESW
MUTESW
NRSW
NC3
MSOUT
MSTC
G1FB
G2FB
PBFB2
PBRIN2
PBGND
PBIN2
VCT
PBREF
PBFIN1
PBGND2
PBRIN1
PBFB1
1
2
3
4
5
HEAD L FWD
HEAD R FWD
HEAD R REV
HEAD L REV
HEAD COMMON
4700P
C264
51K
R259
R258
3.9K
C263
0.47
C265 0.1
R260 220K
R262 22K
R261 0
C266 2.2
2.2u35
C262B
2.2u35
C262A
C261A
0.1
22u16
C260
+
VR250A 10K
1000P
C258A
0.1u50
C259A
+
VR250B 10K
0.1u50
C259B
+
22u16
+
C257
0.01
C256B
180
R254B
14
20
16
17
18
19
10P
C254A
100
R252B
100
R253B
100
R253A
R252A
100
10P
C254B
TP260
TP261
TP262
TP263
TP264
16
9
DOLBY
MUSIC
10
TP258
TP259
14
TA
R
c
h
A GND
A
UDIO 8V
MS MODE
T
ALch
DRSW
MET
A
L
EQ MUTE
TP253
7
8
5
6
TP256
TP257
TP255
TP254
3
4
2
1
TP251
TP252
TP250
18
17
20
19
LINEOUT1
2
1
PBTC1
TAPEIN1
3
4
PBOUT1
9
TCH1
NC1
VCC
7
6
5
8
NC2
MSLPF
10
TAPEIN2
OUTREF2
PBOUT2
LINEOUT2
GND
29
PBTC2
30
28
27
26
22
DIREF
TCH2
24
25
23
NC4
MSSW
21
0.01
C256A
100
R255A
180
R254A
100
R255B
1000P
C258B
0.1
C261B
22K
R256
100K
R251B
100K
R251A
470P
C252B
470P
C252A
100K
R250B
100K
R250A
470P
C250A
470P
C250B
2
C
3
1
1
2
3
6
4
5
7
8
11
9
10
5
4
3
2
1
HEAD L FWD
HEAD R FWD
S MO-
F REEL
ANODE
R REEL
MODE 1
MODE 3
SW 5V
MODE 2
M MO+
S MO+
HEAD L REV
HEAD R REV
HEAD
GND
COMMON
10
R257
OUTREF1
IC250
CASSETTE MECHA. (CME1)
B
A
EQUALIZER UNIT
4.0V
0.3V
4.0V
8.0V
5.0V
4.0V
0V
4.7V
0V
4.0V
4.0V
0.3V
4.7V
4.0V
0V
0V
0V
4.0V
4.0V
1.2V
DPX-MP4070/MP4070B (1/3)
10P
C255A
10P
C255B
CAUTION : For continued safety, re-
place safety critical components only
with manufacturer’s recommended parts
(refer to parts list).
Indicates safety critical components.
To reduce the risk of electric shock,
leakage-current or resistance measure-
ments shall be carried out (exposed parts
are acceptably insulated from the supply
circuit) before the appliance is returned
to the customer.
• DC voltages are as measured with a
high impedance voltmeter. Values may
vary slightly due to variations between
individual instruments or/and units.
EQUALIZER UNIT (1/1)
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TEL 13942296513 QQ 376315150 892498299