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Kenwood DPX-4020 Service Manual

Kenwood DPX-4020
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CD CASSETTE DSP RECEIVER
DPX-5030
SERVICE MANUAL
© 2002-3 PRINTED IN JAPAN
B51-7942-00 (4) 167
Refer to the Destination "M1" of service manual DPX-4020's parts list (B51-7776-00)
except the following parts.
PARTS LIST
AUD
DIGITAL
SIGNAL
PROCESSOR
DSP
EQ
FM+
DISC
B NR
SCRL 1 SCN 2 RDM 3 REP 45M. RDM 6
AT T
USER B.S METAL
DISP
DIGITAL
PULSE
AXIS
CONTROL
NAME.S
PWR
OFF
FNC
CD-R/CD-RW
AVAILABLE
CRSC
SRC
S.A
CD CASSETTE DSP RECEIVER
OPEN
DPAC
COMPACT
DIGITAL A
UDIO
DOLBY B NR
*New Parts
AN AN
Ref. No. d e Parts No. Description Ref. No. d e Parts No. Description
dw dw
250 2E K24-3888-03 KNOB (CD EJECT)
251 2E K24-3889-03 KNOB (OPEN)
204
3E A22-2974-02 SUB PANEL ASSY 252 3H K24-3891-03 KNOB (DSP)
205
3E A22-2975-01 SUB PANEL 253 3H K24-3892-03 KNOB (EQ)
207
1H A46-1721-21 REAR COVER 254 3H K24-3890-03 KNOB (SA)
208
1H A46-1725-03 REAR COVER
PA1
3G A64-2778-02 PANEL ASSY 255 1H K25-1288-03 KNOB (CASSETTE EJECT)
256 3H K25-1467-02 KNOB (SRC)
213
3G B10-4289-01 FRONT GLASS 257 2H K25-1468-02 KNOB (SEEK)
258 3H K25-1469-02 KNOB (FM)
-
H54-2572-03 ITEM CARTON CASE 259 3H K25-1470-03 KNOB (VOL)
260 3H K25-1471-02 KNOB (1-6)
271 1F N99-1724-05
SCREW SET
DPX-5030
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1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
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9
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2
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299

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Kenwood DPX-4020 Specifications

DPX-4020 GM type

FM Section IconFM Section
frequency range87.5MHz~108.0MHz
usable sensitivity9.3dBf(0.8µ/75Ω)
quieting sensitivity15.2dBf(1.6µV/75Ω)
frequency response30Hz~15kHz
signal-to-noise ratio70dB(MONO)
selectivity≥80dB(±400kHz)
stereo separation40dB(1kHz)
AM Section IconAM Section
frequency range531kHz~1611kHz
usable sensitivity28dBµV(25µV)
Cassette Section IconCassette Section
tape speed4.76cm/sec
wow & flutter0.08(%)(WRMS)
frequency response25Hz~22kHz(70µs)
stereo separation40(1kHz)
signal-to-noise ratio Dolby NR off60dB(BNR off)
signal-to-noise ratio Dolby BNR on68dB
CD Section IconCD Section
laser diodeGaAIAs(λ=780nm)
digital filter8 Times Over Sampling
D/A converter1Bit
spindle speed500~200rpm(CLV)
frequency response10Hz~20kHz(±1dB)
total harmonic distortion0.01%(1kHz)
signal-to-noise ratio93dB(1kHz)
dynamic range93dB
channel separation85dB
Amplifier Section IconAmplifier Section
maximum power47W✕4
full bandwidth power22W✕4(at less than 1%THD)
preout level1500mV/10kΩ
preout impedance≤600Ω
General IconGeneral
operating voltage14.4V(11V~16V)
current consumption10A
installation size (W)178mm(7in)
installation size (H)100mm(3-15/16in)
installation size (D)155mm(6-1/8in)
weight2.7kg

DPX-4020 GK type

FM Section IconFM Section
frequency range87.9MHz~107.9MHz
usable sensitivity9.3dBf(0.8µ/75Ω)
quieting sensitivity15.2dBf(1.6µV/75Ω)
frequency response30Hz~15kHz
signal-to-noise ratio70dB(MONO)
selectivity≥80dB(±400kHz)
stereo separation40dB(1kHz)
AM Section IconAM Section
frequency range530kHz~1700kHz
usable sensitivity28dBµV(25µV)
Cassette Section IconCassette Section
tape speed4.76cm/sec
wow & flutter0.08(%)(WRMS)
frequency response25Hz~22kHz(70µs)
stereo separation40(1kHz)
signal-to-noise ratio Dolby NR off60dB(BNR off)
signal-to-noise ratio Dolby BNR on68dB
CD Section IconCD Section
laser diodeGaAIAs(λ=780nm)
digital filter8 Times Over Sampling
D/A converter1Bit
spindle speed500~200rpm(CLV)
frequency response10Hz~20kHz(±1dB)
total harmonic distortion0.01%(1kHz)
signal-to-noise ratio93dB(1kHz)
dynamic range93dB
channel separation85dB
Amplifier Section IconAmplifier Section
maximum power47W✕4
full bandwidth power22W✕4(at less than 1%THD)
preout level1500mV/10kΩ
preout impedance≤600Ω
General IconGeneral
operating voltage14.4V(11V~16V)
current consumption10A
installation size (W)178mm(7in)
installation size (H)100mm(3-15/16in)
installation size (D)155mm(6-1/8in)
weight2.7kg (5.9lbs)

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