SERVICE MANUAL
CD RECEIVER
KW-XG56TU, KW-XR411E, KW-XR411EU, KW-XR411EY, KW-XR414UI, KW-XR416DU, KW-XR416DUH, KW-XR416DUN, KW-XR416SUN, KW-XR416U, KW-XR416UH, KW-XR416UN, KW-XR416UP, KW-XR416UT, KW-XR417EE, KW-XR418J
only KW-XR418
except KW-XR411/KW-XR417 for KW-XR411/KW-XR417
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5 2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8 3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9 4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17 5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22
COPYRIGHT © 2011 Victor Company of Japan, Limited
No.MA471<Rev.005>
2011/7
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SPECIFICATION |
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KW-XR418 |
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AUDIO AMPLIFIER SECTION |
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Power Output |
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20 W RMS × 4 Channels at 4 Ω and < 1% THD+N |
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Signal-to-Noise Ratio |
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80 dBA (reference: 1 W into 4 Ω) |
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Load Impedance |
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4 Ω (4 Ω to 8 Ω allowance) |
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Tone Control Range |
Bass |
±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 |
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Middle |
±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 |
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Treble |
±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed) |
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Frequency Response |
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40 Hz to 20 000 Hz |
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Line-Out Level/Impedance |
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2.5 V/20 kΩ load (full scale) |
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Subwoofer-Out Level/Impedance |
2.5 V/20 kΩ load (full scale) |
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Output Impedance |
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1 kΩ |
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Other Terminal |
USB input terminal, AUX |
(auxiliary) input jack, Antenna input, Steering wheel remote input |
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TUNER SECTION |
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Frequency Range |
FM |
87.5 MHz to 107.9 MHz (with channel interval set to 100 kHz or 200 kHz) |
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87.5 MHz to 108.0 MHz (with channel interval set to 50 kHz) |
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AM |
530 kHz to 1 710 kHz (with channel interval set to 10 kHz) |
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531 kHz to 1 602 kHz (with channel interval set to 9 kHz) |
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FM Tuner |
Usable Sensitivity |
9.3 dBf (0.8 µV/75 Ω) |
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50 dB Quieting Sensitivity |
16.3 dBf (1.8 µV/75 Ω) |
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Alternate Channel Selectivity |
(400 kHz) |
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65 dB |
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Frequency Response |
40 Hz to 15 000 Hz |
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Stereo Separation |
40 dB |
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AM Tuner |
Sensitivity/Selectivity |
20 µV/40 dB |
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CD PLAYER SECTION |
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Type |
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Compact disc player |
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Signal Detection System |
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Non-contact optical pickup (semiconductor laser) |
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Number of channels |
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2 channels (stereo) |
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Frequency Response |
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5 Hz to 20 000 Hz |
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Dynamic Range |
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96 dB |
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Signal-to-Noise Ratio |
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98 dB |
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Wow and Flutter |
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Less than measurable limit |
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MP3 Decoding Format |
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MPEG1/2 Audio Layer 3 |
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Max. Bit Rate: 320 kbps |
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WMA (Windows Media® Audio) Decoding Format |
Max. Bit Rate: 320 kbps |
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USB SECTION |
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USB Standard |
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USB 1.1, USB 2.0 |
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Data Transfer Rate (Full Speed) |
Max. 12 Mbps |
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Compatible Device |
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Mass storage class |
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Compatible File System |
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FAT 32/16/12 |
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Playable Audio Format |
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MP3/WMA |
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Max. Current |
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DC 5 V 500 mA |
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GENERAL |
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Power Requirement |
Operating Voltage |
DC 14.4 V (11 V to 16 V allowance) |
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Grounding System |
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Negative ground |
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Allowable Operating Temperature |
0°C to +40°C (32°F to 104°F) |
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Dimensions (W × H × D) |
Installation Size (approx.) |
182 mm × 111 mm × 160 mm (7-3/16" × 4-3/8" × 6-5/16") |
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Panel Size (approx.) |
188 mm × 117 mm × 23 mm (7-7/16" × 4-5/8" × 5/16") |
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Mass (approx.) |
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1.8 kg(3.9 lbs) (excluding accessories) |
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Designs & specifications are subject to change without notice.
1-2 (No.MA471<Rev.005>)
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KW-XR411/KW-XR417 |
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AUDIO AMPLIFIER SECTION |
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Maximum Power Output |
Front/Rear |
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50 W per channel |
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Continuous Power Output |
Front/Rear |
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20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 1% total har- |
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(RMS) |
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monic distortion. |
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Load Impedance |
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4 Ω (4 Ω to 8 Ω allowance) |
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Tone Control Range |
Bass |
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±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 |
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Middle |
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±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 |
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Treble |
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±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed) |
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Frequency Response |
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40 Hz to 20 000 Hz |
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Signal-to-Noise Ratio |
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70 dB |
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Line-Out Level/Impedance |
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2.5 V/20 kΩ load (full scale) |
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Subwoofer-Out Level/Impedance |
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2.5 V/20 kΩ load (full scale) |
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Output Impedance |
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1 kΩ |
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Other Terminal |
AUX (auxiliary) input jack, |
USB input terminal, Aerial input, Steering wheel remote input |
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TUNER SECTION |
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Frequency Range |
FM |
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87.5 MHz to 108.0 MHz |
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FM-LO (KW-XR417) |
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65.0 MHz to 74.0 MHz |
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AM |
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MW: 522 kHz to 1 620 kHz |
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LW: 144 kHz to 279 kHz |
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Usable Sensitivity |
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9.3 dBf (0.8 µV/75 Ω) |
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50 dB Quieting Sensitivity |
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16.3 dBf (1.8 µV/75 Ω) |
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Alternate Channel Selectivity |
(400 kHz) |
65 dB |
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Frequency Response |
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40 Hz to 15 000 Hz |
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Stereo Separation |
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40 dB |
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MW Tuner |
Sensitivity |
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20 µV |
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Selectivity |
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40 dB |
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LW Tuner |
Sensitivity |
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50 µV |
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CD PLAYER SECTION |
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Type |
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Compact disc player |
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Signal Detection System |
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Non-contact optical pickup (semiconductor laser) |
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Number of Channels |
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2 channels (stereo) |
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Frequency Response |
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5 Hz to 20 000 Hz |
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Dynamic Range |
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96 dB |
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Signal-to-Noise Ratio |
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98 dB |
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Wow and Flutter |
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Less than measurable limit |
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MP3 Decoding Format: (MPEG1/2 Audio Layer 3) |
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Max. Bit Rate: 320 kbps |
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WMA (Windows Media® Audio) Decoding Format |
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Max. Bit Rate: 320 kbps |
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USB SECTION |
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USB Standard |
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USB 1.1, USB 2.0 |
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Data Transfer Rate (Full Speed) |
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Max. 12 Mbps |
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Compatible Device |
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Mass storage class |
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Compatible File System |
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FAT 32/16/12 |
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Playable Audio Format |
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MP3/WMA |
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Max. Current |
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DC 5 V 500 mA |
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GENERAL |
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Power Requirement |
Operating Voltage |
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DC 14.4 V (11 V to 16 V allowance) |
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Grounding System |
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Negative ground |
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Allowable Operating Temperature |
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0°C to +40°C |
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Dimensions (W × H × D): |
Installation Size |
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182 mm × 111 mm × 160 mm |
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(approx.) |
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Panel Size |
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188 mm × 117 mm × 23 mm |
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Mass |
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1.8 kg (excluding accessories) |
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Designs & specifications are subject to change without notice.
(No.MA471<Rev.005>)1-3
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KW-XR416/KW-XR414/KW-XG56TU |
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AUDIO AMPLIFIER SECTION |
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Maximum Power Output |
Front/Rear |
50 W per channel |
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Continuous Power Output |
Front/Rear |
20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 1% total har- |
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(RMS) |
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monic distortion. |
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Load Impedance |
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4 Ω (4 Ω to 8 Ω allowance) |
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Tone Control Range |
Bass |
±12 dB (60 Hz, 80 Hz, 100 Hz, 200 Hz) Q1.0, Q1.25, Q1.5, Q2.0 |
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Middle |
±12 dB (0.5 kHz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Q0.75, Q1.0, Q1.25 |
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Treble |
±12 dB (10.0 kHz, 12.5 kHz, 15.0 kHz, 17.5 kHz) Q (Fixed) |
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Frequency Response |
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40 Hz to 20 000 Hz |
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Signal-to-Noise Ratio |
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70 dB |
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Line-Out Level/Impedance |
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5.0 V/20 kΩ load (full scale) |
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Subwoofer-Out Level/Impedance |
5.0 V/20 kΩ load (full scale) |
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Output Impedance |
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1 kΩ |
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Other Terminal |
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AUX (auxiliary) input jack, USB input terminal, Antenna input |
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TUNER SECTION |
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Frequency Range |
FM |
87.5 MHz to 108.0 MHz |
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AM |
531 kHz to 1 602 kHz |
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FM Tuner |
Usable Sensitivity |
9.3 dBf (0.8 µV/75 Ω) |
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50 dB Quieting Sensitivity |
16.3 dBf (1.8 µV/75 Ω) |
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Alternate Channel Selectivity |
(400 kHz) |
65 dB |
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Frequency Response |
40 Hz to 15 000 Hz |
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Stereo Separation |
40 dB |
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AM Tuner |
Sensitivity |
20 µV |
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Selectivity |
40 dB |
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CD PLAYER SECTION |
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Type |
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Compact disc player |
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Signal Detection System |
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Non-contact optical pickup (semiconductor laser) |
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Number of Channels |
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2 channels (stereo) |
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Frequency Response |
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5 Hz to 20 000 Hz |
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Dynamic Range |
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96 dB |
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Signal-to-Noise Ratio |
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98 dB |
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Wow and Flutter |
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Less than measurable limit |
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MP3 Decoding Format: (MPEG1/2 Audio Layer 3) |
Max. Bit Rate: 320 kbps |
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WMA (Windows Media® Audio) Decoding Format |
Max. Bit Rate: 320 kbps |
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USB SECTION |
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USB Standard |
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USB 1.1, USB 2.0 |
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Data Transfer Rate (Full Speed) |
Max. 12 Mbps |
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Compatible Device |
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Mass storage class |
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Compatible File System |
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FAT 32/16/12 |
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Playable Audio Format |
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MP3/WMA |
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Max. Current |
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DC 5 V 500 mA |
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GENERAL |
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Power Requirement |
Operating Voltage |
DC 14.4 V (11 V to 16 V allowance) |
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Grounding System |
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Negative ground |
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Allowable Operating Temperature |
0°C to +40°C |
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Dimensions (W × H × D): |
Installation Size |
178 mm × 100 mm × 160 mm |
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(approx.) |
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Panel Size |
184 mm × 112 mm × 23 mm |
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Mass |
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1.4 kg (excluding accessories) |
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Designs & specifications are subject to change without notice.
1-4 (No.MA471<Rev.005>)
(1)This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.
(2)Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.
(3)Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.
(4)The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling.
(5)Leakage shock hazard testing
After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.
•Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).
•Alternate check method
Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000Ω per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the AC
voltmeter.
Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC (r.m.s.).
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AC VOLTMETER |
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(Having 1000 |
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ohms/volts, |
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or more sensitivity) |
0.15 F AC TYPE |
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Place this |
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probe on |
1500 10W |
each exposed |
metal part. |
Good earth ground
(1)This equipment has been designed and manufactured to meet international safety standards.
(2)It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
(3)Repairs must be made in accordance with the relevant safety standards.
(4)It is essential that safety critical components are replaced by approved parts.
(5)If mains voltage selector is provided, check setting for local voltage.
Burrs formed during molding may be left over on some parts of the chassis.
Therefore, pay attention to such burrs in the case of preforming repair of this system.
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)
(No.MA471<Rev.005>)1-5
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.5.1Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products. Be careful to use proper grounding in the area where repairs are being performed.
(1)Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.
(2)Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(caption)
Anti-static wrist strap
1M
Conductive material (conductive sheet) or iron palate
(3)Handling the optical pickup
•In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
•Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.
(1)Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2)Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector.
(3)Handle the flexible cable carefully as it may break when subjected to strong force.
(4)I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
*Please refer to "Disassembly method" in the text for the pickup unit.
•Apply solder to the short land sections before the card wire is disconnected from the connector on the servo board. (If the card wire is disconnected without applying solder, the pickup may be destroyed by static electricity.)
•In the assembly, be sure to remove solder from the short land sections after connecting the card wire.
Mechanism control board |
Short land section |
CN102
Flexible wire |
Pickup |
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1-6 (No.MA471<Rev.005>)
1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.
4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able to function.
6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure.
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Please use enough caution not to |
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see the beam directly or touch it |
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in case of an adjustment or operation |
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check. |
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REPRODUCTION AND POSITION OF LABELS and PRINT
WARNING LABEL and PRINT
(No.MA471<Rev.005>)1-7
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-8 (No.MA471<Rev.005>)
SECTION 3
DISASSEMBLY
3.1Main body (Used model: KW-XR418)
3.1.1 Removing the Front panel (See Fig.1)
(1)Remove the two screws A attaching the both side of the Front panel.
(2)Disengage four hooks a engaged both side of the Front panel.
A hook a
Fig.1
3.1.2 Removing the Bottom chassis (See Fig.2, 3)
(1)Remove the two screws B attaching the both side of the Bottom chassis. (See Fig.2)
B
Fig.2
(2)Remove the three screws C attaching the Bottom chassis. (See Fig.3)
(3)Remove the two screws D and two screws E attaching the Heat sink. (See Fig.3)
(4)Remove the three screws F and one screw G attaching the Rear bracket. (See Fig.3)
F G D E D F
C
Fig.3
3.1.3 Removing the Main board (See Fig.4, 5)
(1)Remove the two screws H and one screw J attaching the Side plate. (See Fig.4)
H J H
Fig.4
(2)Remove the three screws K attaching the Main board. (See Fig.5)
(3)Disconnect B-B connector CN501 of the Main board connected the CD mechanism and Main board. (See Fig.5)
K
CN501
K
Fig.5
(No.MA471<Rev.005>)1-9