Page 1
1-2 (No.MA471)
SPECIFICATION
Designs & specifications are subject to change without notice.KW-XR418
AUDIO AMPLIFIER SECTION
Power Output 20 W RMS × 4 Channels at 4 Ω and < 1% THD+N
Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 Ω)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0
Middle ±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25
Treble ±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed)
Frequency Response 40 Hz to 20 000 Hz
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal USB input terminal, AUX (auxiliary) input jack, Antenna input, Steering wheel remote input
TUNER SECTION
Frequency Range FM 87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz)
87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz)
AM 530 kHz to 1 710 kHz (with channel interval set to 10 kHz)
531 kHz to 1 602 kHz (with channel interval set to 9 kHz)
FM Tuner Usable Sensitivity 9.3 dBf (0.8 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 40 dB
AM Tuner Sensitivity/Selectivity 20 µV/40 dB
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format MPEG1/2 Audio Layer 3
Max. Bit Rate: 320 kbps
WMA (Windows Media
® Audio) Decoding Format Max. Bit Rate: 320 kbps
USB SECTION
USB Standard USB 1.1, USB 2.0
Data Transfer Rate (Full Speed) Max. 12 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Playable Audio Format MP3/WMA
Max. Current DC 5 V 500 mA
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)
Dimensions (W × H × D) Installation Size (approx.) 182 mm × 111 mm × 160 mm (7-3/16" × 4-3/8" × 6-5/16")
Panel Size (approx.) 188 mm × 117 mm × 23 mm (7-7/16" × 4-5/8" × 5/16")
Mass (approx.) 1.8 kg(3.9 lbs) (excluding accessories)
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(No.MA471)1-3 Designs & specifications are subject to change without notice.KW-XR411/KW-XR417
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output
(RMS)Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 1% total har-
monic distortion.
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0
Middle ±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25
Treble ±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed)
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Subwoofer-Out Level/Impedance 2.5 V/20 kΩ load (full scale)
Output Impedance 1 kΩ
Other Terminal AUX (auxiliary) input jack, USB input terminal, Aerial input, Steering wheel remote input
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
FM-LO (KW-XR417) 65.0 MHz to 74.0 MHz
AM MW: 522 kHz to 1 620 kHz
LW: 144 kHz to 279 kHz
Usable Sensitivity 9.3 dBf (0.8 µV/75 Ω)
50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)
Alternate Channel Selectivity (400 kHz) 65 dB
Frequency Response 40 Hz to 15 000 Hz
Stereo Separation 40 dB
MW Tuner Sensitivity 20 µV
Selectivity 40 dB
LW Tuner Sensitivity 50 µV
CD PLAYER SECTION
Type Compact disc player
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response 5 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Decoding Format: (MPEG1/2 Audio Layer 3) Max. Bit Rate: 320 kbps
WMA (Windows Media
® Audio) Decoding Format Max. Bit Rate: 320 kbps
USB SECTION
USB Standard USB 1.1, USB 2.0
Data Transfer Rate (Full Speed) Max. 12 Mbps
Compatible Device Mass storage class
Compatible File System FAT 32/16/12
Playable Audio Format MP3/WMA
Max. Current DC 5 V 500 mA
GENERAL
Power Requirement Operating Voltage DC 14.4 V (11 V to 16 V allowance)
Grounding System Negative ground
Allowable Operating Temperature 0°C to +40°C
Dimensions (W × H × D):
(approx.)Installation Size 182 mm × 111 mm × 160 mm
Panel Size 188 mm × 117 mm × 23 mm
Mass 1.8 kg (excluding accessories)
Page 10
(No.MA471)1-11 3.2.2 Removing the top cover (See Fig.3 to 5)
- Remove the MECHANISM CONTROL BOARD assembly.
(1) From the front side of the CD MECHANISM assembly,
change the hook position of the two roller springs. (See
Fig.3.)
Fig.3
(2) From the side of the CD MECHANISM assembly, remove
the six screws B attaching the top cover. (See Fig.3 and 4.)
Fig.4(3) Take out the top cover in an upward direction. (See Fig.5.)
Fig.5
3.2.3 Removing the roller (See Fig.6)
- Remove the MECHANISM CONTROL BOARD assembly and
top cover.
(1) From the bottom side of the top cover, remove the screw C
attaching the gear holder.
(2) Remove the R.holder assembly from disc plate, and then
take out the roller from R.holder assembly in the direction
of the arrow.
Reference:
When attaching the R.ACT gear (2) and R.ACT gear (3),
apply grease to the section d of R.holder assembly.
Fig.6
B
Top cover
Roller spring Roller spring
B
B
Top cover
Top cover
Roller coller
Roller
R.ACT gear(3)
Roller gear
Gear holder
R.ACT gear(2)
R.holder assembly
Top cover Disc plateWasher
C
d
