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Kenwood DMF-3020 Service Manual

Kenwood DMF-3020
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P QSRT
2
1
3
5
7
4
6
4.9V
4.9V
5.2V
5.2V
4.9V
0V
4.9V
-20.7V
-21.4V
-21.4V
4.9V
POWER ON :
5.2V
0V
0V
4.8V
1.5V
3.3V
0V
4.9V
0V
0V
4.9V
4.9V
4.9V
4.9V
4.9V
4.9V
4.9V
1.9V
4.9V
4.9V
4.9V
3.1V
4.9V
3.3V
0V
4.9V
3.3V
0V
3.3V
4.9V
0V
0V
0.5V
4.9V
1.7V
4.9V
0V
0V
0V
0V
4.9V
4.9V
0V
0V
0V
4.8V
4.9V
4.9V
4.8V
0V
3.3V
4.9V
3.3V
1.7V
3.3V
4.9V
3.3V
0V
3.3V
4.9V
3.3V4.8V
2.3V
3.3V
R69 100K
R68 100K
R66 100K
R67 100K
R65 100K
R64 100K
R53
R52
1.8K
1.8K
28
27
26
25
24
23
21
20
19
18
17
16
15
14
13
8
7
6
5
4
3
100K
R33
7
19
18
17
16
15
14
13
12
11
10
4
3
5
6
7
9
8
ENCB
ENCA
KR3
KR2
uGND
KR1
KR0
u+5V
POW
-33V
AC
AC
FLDCE
DCLK
DWDT
REM
TM SW
4CHACK-IN
3STTLMT
5
6
7
PB-P
PROTECT
REFRECT
LDON 11
8
9
10
(RMS)MOD
REC-P
GND
MNT2(X BUSY) 12
SCL
XINT 13
14
(XRST)DIG-RST 16
SQSY 15
DQSY 17
SENSE
MNT1(SHCK) 18
19
1+5V
2DISC-IN
12
29
28
SCLK
SRDT
XLATCH
25
27
26
SWDT
WRDWP
MNT3(SLOCK)
22
21
24
23
SDA
MNTO(FOK)
SCTX
ADDT
BCK
19M GND
20
M GND
18
M+5V
14
M+5V
16DADT
17
LRCK
15
LOAD-IN
13
GND 11
7D IN
10
9GND
LOAD-OUT
83.3V
6H+5V
4+5V
5D OUT
2512fs
3+5V
1H GND
3
5
3
7
10
4
7
9
8
6
5
3
2
1
11
17
14
12
13
15
16
18
19
20
4
GND
7
5
6
8
10
9
VCC
3
2
12
11
13
114
34
GND
7
6
8
5
4
2
3
1
11
10
9
13
12
14
VCC
13
7
GND
6
5
4
3
2
8
9
10
12
11
1
14
VCC
C49
1
3
5
31
36
65
12
8
2
13
50
47
48
45
32
21
11
13
9
1
3
5
33
16
18
19
28
27
24
23
25
26
R43
1.8K
R40
2.7K
4
7
VREF
IN1
9
OUT1
8
GND
VS
6
NC
5
OUT2
3
IN2
VCC
2
1
33K
R61
12K
R59
0.1
C51
57
44
74
75
72
4
5
55
56
54
53
3
7
R60
8.2K
100
R63
100
R62
R70
100K
63
70
13
11
9
1
3
5
17
R37
47K
79
0.01
C50
100K
R45
1.2V
2.4V
1K
R36
R55
330
R99
1K
100K
R51
REC 2
1STANDBY
+5V
+5V
+5V
+5V
+5V
+5V
+5V+5V
+5V +5V
31V
+5V
+5V
+5V
+5V
+3.3V
+3.3V+3.3V
C44
0.01
R71
100K
470
R56
C54
0.01
R57
470
10K
R58
82
76
R235
10K
+5V
100K
R47
2.7K
R49
2.7K
R48
+5V
+5V
C48
0.01
78
W223
W221
+5V
10
11
10
11
100K
R30
Q14,15,26,28
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
+5V
31V 31V
3,4
(PHOT SW)
0.8V
2.5V
+5V
0.01
20
35
66
67
R42
100K
100K
R41
100K
R39
18
14
16
12
1
100K
R38
12
14
16
18
17
18
R35
100
+5V
+5V
+5V
+5V
+5V
MEMORY
SELECT
CONTROL
CHIP
Q30
Q31
CN5
CN3
CN2
D29
BUFFER
BUFFER
3 STATE BUFFER
3 STATE BUFFER
LOADING
LOADING DRIVER
VOLTAGE
CHANGEOVER
Q25
Q27
INPUT/OUTPUT
CONTROL
-MBL-3
MECHA.
1/3
1/3
-MBL-3
MECHA.
D41
Q26
Q28
D40
Q15
Q14
D43 D44
FL SEG
CONTROL
DIGITAL OUT
OUT
DIGITAL
IC39
IC38
IC37
IC36
IC35
(X25-618X-XX) (A/5)
B
A
ELECTRIC UNIT
2SA954
2SA992
2SC1845
2SD1302
DTA144EUA
DTC114YUA
DTC143TUA
UN5216
UN5219
2SB1218A
2SC4081
2SD1819A
2SD2061 FMW1 2SB798-DL DTC114EUA2SD2012
DMF-5020(K) COVER1,1P( 98.12.9 16:41 y[W 17
www.freeservicemanuals.info
9/8/2013
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Instruction Manual56 pages

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Kenwood DMF-3020 Specifications

DMF-5020

Digital Audio Performance IconDigital Audio Performance
frequency response (playback mode)8 Hz ~ 20 kHz (± 1 dB)
signal to noise ratio (playback mode)More than 105 dB
dynamic range (playback mode)More than 94 dB
total harmonic distortion (1 kHz, playback mode)Less than 0.007 %
analog input sensitivity / input impedance500 mV / 22 kΩ or more
analog output level / output impedance2.0 V / Less than 400 Ω
headphone output20 mW/32 Ω load
digital input (coxaial)0.5 Vp-p / 75 Ω
digital input (optical)Wave length 660 nm, - 15 dBm ~ - 21 dBm
digital output (coxaial)0.5 Vp-p / 75 Ω
digital output (optical)Wave length 660 nm, - 15 dBm ~ - 21 dBm
General Specifications IconGeneral Specifications
power consumption18 W
dimensions (W x H x D)440 mm x 94 mm x 379 mm
weight4.0 kg

DMF-3020/MD-203

Digital Audio Performance IconDigital Audio Performance
frequency response (playback mode)8 Hz ~ 20 kHz (± 1 dB)
signal to noise ratio (playback mode)More than 100 dB
dynamic range (playback mode)More than 90 dB
total harmonic distortion (1 kHz, playback mode)Less than 0.01 %
analog input sensitivity / input impedance500 mV / 22 kΩ or more
analog output level / output impedance2.0 V / Less than 400 Ω
headphone output20 mW/32 Ω load
digital input (coxaial)0.5 Vp-p / 75 Ω
digital input (optical)Wave length 660 nm, - 15 dBm ~ - 21 dBm
digital output (coxaial)0.5 Vp-p / 75 Ω
digital output (optical)Wave length 660 nm, - 15 dBm ~ - 21 dBm
General Specifications IconGeneral Specifications
power consumption18 W
dimensions (W x H x D)440 mm x 94 mm x 379 mm
weight4.0 kg
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