Kenwood DPX-MP4070 Service Manual page 20

A
DPX-MP4070/MP4070B
QQ
3 7 63 1515 0
1
2
3
TE
L 13942296513
4
5
CAUTION : For continued safety, re-
place safety critical components only
6
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-
www
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
7
individual instruments or/and units.
20
EQUALIZER UNIT (1/1)
B
C258B
DOLBY
ADJ(R)
x ao
y
. i
CASSETTE MECHA. (CME1)
C
8
MAIN UNIT-
CN301
A
2/3
CN251
1 2 3 4 5 6 7 8 9 10
4.7V
21 0V
MSSW
22
C261B
NC4 0.3V
0.1
23
TCH2 4.0V
24
R256
LINEOUT2
22K
25
DIREF 1.2V
IC250
0V 26
GND
DOLBY/EQ/MS
C259B
1000P 0.1u50
27
TAPEIN2
+
28
OUTREF2
29
4.0V
PBOUT2
VR250B 10K
30
PBTC2
4.0V 4.0V
Q Q
3 6 7
R255B
100
R251B R251A
100K 100K
C252B C252A
470P 470P
R250B R250A
100K 100K
C250B C250A
470P 470P
1 2 3 4 5
CN250
1 2 3 4 5 11 10 9 8
u163
HD1
D
2 9 9 4
EQUALIZER UNIT
5.0V
4.0V
10
MSLPF
9
NC2
8
TCH1
7 4.0V
LINEOUT1
6
C260
NC1
22u16
5 8.0V
VCC
+
C259A C258A
0.1u50 1000P
4
TAPEIN1
+
3
OUTREF1
2
4.0V
PBOUT1
VR250A 10K
1
PBTC1
DOLBY
4.0V
ADJ(L)
1 3 1 5 0 5 8 2 9
R255A
100
IC250 : CXA2560Q
SIGNAL LINE
GND LINE
B LINE
DPX-MP4070/MP4070B (1/3)
MAIN UNIT-
CN351
B
2/3
m
7 6 5 4 3 2 1
co
.
E
2 8
9 9
9 4 2 8 9 9