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KD-DVH462-UN
Service Manual
115 pgs9.03 Mb0
Table of contents
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Jvc KD-DVH462-UN, KD-DV5308-EE, KD-DV5307-EE, KD-DV5306-UT, KD-DV5306-UN Service Manual

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SERVICE MANUAL
DVD/CD RECEIVER

MA30820073SERVICE MANUAL

KD-ADV5380J,KD-DV5300J,KD-DV5301E,KD-DV5301EU,
KD-DV5302E,KD-DV5302EU,KD-DV5304UI,KD-DV5305U,
KD-DV5306UN,KD-DV5306UT,KD-DV5306A,KD-DV5307EE,
KD-DV5308EE,KD-DV5388UF,KD-DV4304UI,KD-DV4305U,
KD-DV4306UN,KD-DV4306UT,KD-DV4306A,KD-DV4388UF,
KD-DVH426UN
except
KD-DVH426
only for
KD-ADV5380
KD-DV5300
KD-ADV5380/KD-DV5300/KD-DV5306 KD-DV5305/KD-DV5304/KD-DV5303
COPYRIGHT © 2007 Victor Company of Japan, Limited
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)
KD-DV5308/KD-DV5307/KD-DV5302 KD-DV5301/KD-DV4306/KD-DV4305 KD-DV4304/KD-DV4303
KD-DVH426
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-40
only for KD-DV5308 KD-DV5307 KD-DV5302 KD-DV5301
COPYRIGHT © 2007 Victor Company of Japan, Limited
No.MA308
2007/3
SPECIFICATION
KD-ADV5380/KD-DV5300
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 at 100 Hz
Treble ±12 dB at 10 kHz
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color system NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal CD changer, AUX (auxiliary) input jack
TUNER SECTION
Frequency Range FM (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 107.9 MHz
FM (with channel interval set to 50 kHz) 87.5 MHz to 108.0 MHz
AM (with channel interval set to 10 kHz) 530 kHz to 1 710 kHz
AM (with channel interval set to 9 kHz) 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 35 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
Sampling Frequency DivX: MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
WMA Bit Rate 32 kbps - 320 kbps
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
WAV Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
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 × 52 mm × 158 mm (7-3/16" × 2-1/16" × 6-1/4")
Panel Size (approx.) 187 mm × 58 mm × 13 mm (7-3/8" × 2-5/16" × 9/16")
Mass (approx.) 1.6 kg (3.6 lbs) (excluding accessories)
720 × 576 pixels (25 fps)
MPEG Video: 32 kbps - 384 kbps
DivX: MPEG-2: 16 kHz, 22.05 kHz, 24 kHz MPEG Video: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Design and specifications are subject to change without notice.
1-2 (No.MA308)
KD-DV5302/KD-DV5301
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Signal to Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color system PAL
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal CD changer, LINE IN, Steering wheel remote input
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM (MW) 522 kHz to 1 620 kHz
(LW) 144 kHz to 279 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB LW Tuner Sensitivity 50 µV
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
720 × 576 pixels (25 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
MPEG Video: 32 kbps - 320 kbps
Sampling Frequency DivX: MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
DivX: MPEG-2: 16 kHz, 22.05 kHz, 24 kHz MPEG Video: 32 kHz, 44.1 kHz, 48 kHz
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
WMA Bit Rate 32 kbps - 320 kbps
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
WAV Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Panel Size (approx.) 187 mm × 58 mm × 13 mm
Mass (approx.) 1.6 kg (excluding accessories)
Design and specifications are subject to change without notice.
(No.MA308)1-3
KD-DV5304/KD-DV4304
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±10 dB at 100 Hz
Treble ±10 dB at 10 kHz
Signal to Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color system PAL/NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal KD-DV5304 : CD changer, LINE IN, AUX (auxiliary) input jack
KD-DV4304 : CD changer
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
720 × 576 pixels (25 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
MPEG Video: 32 kbps - 384 kbps
Sampling Frequency: DivX MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Sampling Frequency: MPEG Video 32 kHz, 44.1 kHz, 48 kHz
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
WMA Bit Rate 32 kbps - 320 kbps
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
WAV Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Panel Size (approx.) 187 mm × 58 mm × 13 mm
Mass (approx.) 1.6 kg (excluding accessories)
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Design and specifications are subject to change without notice.
1-4 (No.MA308)
KD-DV5306/KD-DV5305/KD-DV4306/KD-DV4305
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS)
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Signal to Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Color system PAL/NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal KD-DV5306/KD-DV5305 : CD changer, LINE IN, AUX (auxiliary) input jack
Frequency Range FM 87.5 MHz to 108.0 MHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
MP3 Bit Rate
WMA Bit Rate 32 kbps - 320 kbps
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Mass (approx.) 1.6 kg (excluding accessories)
Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total har-
monic distortion
Treble ±12 dB at 10 kHz
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
KD-DV4306/KD-DV4305 : CD changer
TUNER SECTION
AM 531 kHz to 1 602 kHz
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 30 dB
DVD/CD PLAYER SECTION
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
720 × 576 pixels (25 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
MPEG Video: 32 kbps - 384 kbps
Sampling Frequency: DivX MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Sampling Frequency: MPEG Video 32 kHz, 44.1 kHz, 48 kHz
32 kbps - 320 kbps
Sampling Frequency
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
Panel Size (approx.) 187 mm × 58 mm × 13 mm
MPEG-1: 32 kHz, 44.1 kHz, 48 kHz MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
GENERAL
Design and specifications are subject to change without notice.
(No.MA308)1-5
KD-DV5308/KD-DV5307
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Signal to Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color system PAL
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal CD changer
TUNER SECTION
Frequency Range FM1/FM2 87.5 MHz to 108.0 MHz
FM3 65.00 MHz to 74.00 MHz
AM (MW) 522 kHz to 1 620 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB LW Tuner Sensitivity 50 µV
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
Sampling Frequency DivX: MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
WMA Bit Rate 32 kbps - 320 kbps
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
WAV Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Panel Size (approx.) 187 mm × 58 mm × 13 mm
Mass (approx.) 1.6 kg (excluding accessories)
(LW) 144 kHz to 279 kHz
720 × 576 pixels (25 fps)
MPEG Video: 32 kbps - 320 kbps
DivX: MPEG-2: 16 kHz, 22.05 kHz, 24 kHz MPEG Video: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
GENERAL
Design and specifications are subject to change without notice.
1-6 (No.MA308)
KD-DV5388/KD-DV4388
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8%
total harmonic distortion
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass ±12 dB at 100 Hz
Treble ±12 dB at 10 kHz
Signal to Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color system PAL/NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal KD-DV5388 : CD changer,LINE IN, AUX (auxiliary) input jack
KD-DV4388 : CD changer
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 30 dB
MW Tuner Sensitivity/Selectivity 20 µV/35 dB
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz/96 kHz 16 Hz to 22 000 Hz
CD, fs=44.1 kHz 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
DivX/MPEG Video Video Max. Resolution 720 × 480 pixels (30 fps)
720 × 576 pixels (25 fps)
Audio Bit Rate DivX: 32 kbps - 320 kbps
MPEG Video: 32 kbps - 384 kbps
Sampling Frequency : DivX MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Sampling Frequency : MPEG Video 32 kHz, 44.1 kHz, 48 kHz
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency MPEG-1: 32 kHz, 44.1 kHz, 48 kHz
WMA Bit Rate 32 kbps - 320 kbps
Sampling Frequency 22.05 kHz, 32 kHz, 44.1 kHz, 48 kHz
WAV Quantization Bit Rate 16 bit
Sampling Frequency 44.1 kHz
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Panel Size (approx.) 187 mm × 58 mm × 13 mm
Mass (approx.) 1.6 kg (excluding accessories)
MPEG-2: 16 kHz, 22.05 kHz, 24 kHz
Design and specifications are subject to change without notice.
(No.MA308)1-7
KD-DVH426
AUDIO AMPLIFIER SECTION
Maximum Power Output Front/Rear 50 W per channel
Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total
harmonic distortion
Load Impedance 4 Ω (4 Ω to 8 Ω allowance)
Tone Control Range Bass/Treble ±10 dB at 100 Hz/±10 dB at 10 kHz
Frequency Response 40 Hz to 20 000 Hz
Signal-to-Noise Ratio 70 dB
Audio Output Level Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm
Output level: -21 dBm to -15 dBm
Line-Out Level/Impedance 2.0 V/20 kΩ load (full scale) Output Impedance 1 kΩ
Color System PAL/NTSC
Video Output (composite) 1 Vp-p/75 Ω
Other Terminal CD changer
TUNER SECTION
Frequency Range FM 87.5 MHz to 108.0 MHz
AM 531 kHz to 1 602 kHz
FM Tuner Usable Sensitivity 11.3 dBf (1.0 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 30 dB
AM Tuner Sensitivity/Selectivity 20 µV/35 dB
DVD/CD PLAYER SECTION
Signal Detection System Non-contact optical pickup (semiconductor laser)
Number of Channels 2 channels (stereo)
Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz
DVD, fs=96 kHz 16 Hz to 44 000 Hz
VCD/CD/MP3/WMA 16 Hz to 20 000 Hz
Dynamic Range 96 dB
Signal-to-Noise Ratio 98 dB
Wow and Flutter Less than measurable limit
MP3 Bit Rate 32 kbps - 320 kbps
Sampling Frequency 48 kHz, 44.1 kHz, 32 kHz
WMA Bit Rate 32 kbps - 192 kbps
Sampling Frequency MPEG-1: 48 kHz, 44.1 kHz, 33 kHz
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) Installation Size (approx.) 182 mm × 52 mm × 158 mm
Panel Size (approx.) 188 mm × 58 mm × 11 mm
Mass (approx.) 1.6 kg (excluding accessories)
MPEG-2: 24 kHz, 22.05 kHz, 16 kHz
GENERAL
Design and specifications are subject to change without notice.
1-8 (No.MA308)

1.1 Safety Precautions

SECTION 1
PRECAUTION
!
!
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.
Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
(No.MA308)1-9

1.2 Preventing static electricity

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.
1.2.1 Grounding 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 plate
(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.

1.3 Handling the traverse unit (optical pickup)

(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) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.4 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the pickup unit.
• Apply solder to the short land before the card wire is disconnected from the connector on the pickup unit. (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 after connecting the card wire.
[except KD-DVH426] [for KD-DVH426]
Flexible wire
Flexible wire
1-10 (No.MA308)
CN101
Short-circuit points
Mechanism control board
CN101
Short-circuit points
Mechanism control board

1.5 Important for laser products

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.
!
Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
REPRODUCTION AND POSITION OF LABELS and PRINT
WARNING LABEL and PRINT
(No.MA308)1-11
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-12 (No.MA308)

3.1 Main body

3.1.1 Removing the Bottom chassis (See Fig.1)
(1) Disengage the five hooks a engaged bottom chassis.
SECTION 3
DISASSEMBLY
3.1.2 Removing the Heat sink (See Fig.2)
(1) Remove the two screws A and three screws B attaching
the Heat sink.
a
a
a
a
a
Fig.1
A
3.1.3 Removing the Front chassis assembly (See Fig.3)
(1) From the both side of Front chassis, remove the two
screws C attaching the Front chassis.
(2) Disengage the both side of four hooks b engaged Front
chassis.
B
Fig.2
b
C
b
Fig.3
(No.MA308)1-13
3.1.4 Removing the Main board assembly (See Fig.4 and 5)
(1) Remove the three screws D attaching the Main board as-
sembly. (See Fig.4)
(2) Remove the three screws E attaching Rear bracket. (See
Fig.5)
(3) Disconnect the connector CN961
anism assembly. (See Fig.4)
connected to DVD mech-
CN961
D
D
Fig.4
E
Fig.5
1-14 (No.MA308)
3.1.5 Removing the DVD mechanism assembly
(See Fig.6 and 7)
(1) Remove the three screws F attaching the DVD mechanism
assembly. (See Fig.6)
(2) Remove the two screws G attaching the DVD bracket. (See
Fig.7)
F
F
Fig.6
3.1.6 Removing the Switch board assembly
(See Fig.8)
(1) Remove the Volume knob from Front panel assembly. (2) Remove the five screws H attaching the Back cover. (3) Disengage the fourteen hooks c engaged Back cover.
G
G
Fig.7
HH
cccc
cc
HHH
cc
Fig.8
(No.MA308)1-15

3.2 DVD mechanism assembly (except KD-DVH426)

3.2.1 Removing the mechanism control board (See Fig.1)
Caution:
Before disconnecting the flexible wire extending from the DVD pickup, solder the short-circuit point on the flexible wire using a grounding soldering iron. If you do not follow this instruction, the DVD pickup may be damaged. (1) Turn over the body, and solder the short-circuit points on
the flexible wire extending from the DVD pickup.
(2) Disconnect the flexible wire from connector CN101
mechanism control board.
(3) Disconnect the card wire from connector CN201
mechanism control board.
(4) Disconnect the flexible wire from connector CN202
mechanism control board.
(5) Unsolder two soldered points a on the mechanism control
board and remove the wire extending from the feed motor. (6) Remove the screw A attaching the lug wire. (7) Remove the two screws B and screw C attaching the
mechanism control board.
Caution:
• As the flexible wire to be connected to CN101
attach it to the mechanism control board using a double tape.
• After reassembling, unsolder the short-circuit points.
on the
on the
on the
, make sure to
Flexible wire
Double tape
CN101
B
Short-circuit points
A
Lug wire
B
CN201
Feed motor
a
C
CN202
Mechanism control board
Fig.1
1-16 (No.MA308)
3.2.2 Removing the top cover (See Fig.2)
(1) Remove the two screws D attaching the top cover on the
back of the body.
(2) Remove the top cover upward.
Reference:
When reassembling, set part b of the top cover under the bending part c of the chassis frame.
3.2.3 Removing the mechanism section (See Fig.2 to 4)
• Remove the top cover.
(1) From the bottom of the body, remove the screw E attaching
the lug wire. (See Fig.2.)
(2) Remove the two screws F attaching the right and left stop-
pers on the front side. (See Fig.2.)
(3) Remove the two floating springs on the bottom of the body.
(See Fig.3.)
(4) Move the mechanism section upward and remove from the
chassis frame. The three damper springs come off from the dampers. (See Fig.4.)
Caution:
• When reassembling, reattach the damper spring to the damper respectively and insert the three shafts on the bot­tom of the mechanism to the dampers.
• Before inserting the shaft to the dampers, apply IPA to the hole of damper.
Floating spring
Fig.3
Mechanism section
Stopper
F
Top cover
Stopper
F
D
D
b
c
E
Lug wire
Damper SP.(F)
(Silver)
Damper (F) (Black)
Damper SP.(F)
(Silver)
Damper (F) (Black)
Fig.4
Damper SP.(R)
(Red)
Damper (R) (Purple)
Chassis frame
Fig.2
(No.MA308)1-17
3.2.4 Removing the clamper unit (See Fig.5 to 7)
• Remove the top cover and the mechanism section.
(1) Remove the clamper2 spring on the bottom of the mecha-
nism section. (See Figs.5.and 6.)
(2) Release the part d of the clamper spring from the bending
part of the chassis base assembly. (See Fig.7.)
(3) Move the clamper unit in the direction of the arrow and turn.
Release the two joints e and f, then remove the clamper unit upward. (See Fig.6.)
3.2.5 Reattaching the clamper unit (See Fig.5 to 9)
(1) Attach the clamper spring to the clamper unit. (See Fig.8.) (2) Move the clamper unit to set the side joints e and f to each
boss of the chassis base assembly. Make sure that part g is inserted to the notch of the chassis base assembly. (See Figs.5 and 9.)
(3) Move the part d of the clamper spring to the outside of the
bending part of the chassis base assembly. (See Fig.7.)
(4) Attach the clamper2 spring to the chassis base assembly.
(See Figs.5 and 6.)
Caution:
When reattaching, temporarily hook the end of the clamper spring as shown in the figure to make the work easy. (See Fig.8.)
Clamper unit
Clamper2 spring
Chassis base assembly
Fig.6
Clamper spring
Clamper spring
f
Clamper2 spring
Chassis base assembly
g
d
Chassis base assembly
Fig.7
e
Fig.5
1-18 (No.MA308)
Clamper unit
Clamper unit
Clamper spring
Fig.8
Fig.9
g
Notch
(No.MA308)1-19
3.2.6 Removing the front unit (See Fig.10 to 12)
• Remove the top cover and the mechanism section.
(1) Disconnect the flexible wire from connector CN202 on the
mechanism control board at the bottom of the body. (See Fig.10.)
(2) Remove the screw G attaching the front unit on the top of
the body. (See Fig.11.)
(3) Move the front unit toward the front to release joint h, and
release two joints i and j on the right side of the chassis base assembly. Then remove the front unit upward. (See Figs.11 and 12.)
(4) Remove the two screws H attaching the switch board. (See
Fig.12.)
Reference:
You can remove the switch board only without removing the front unit.
Caution:
When reassembling, attach the flexible wire extending from the switch board using the double tape. (See Figs.10 and 12.)
Mechanism control board
G
Front unit
h
Fig.11
CN202
Double tape
Fig.10
Flexible wire
Double tape
j
i
H
Switch board
Front unit
G
1-20 (No.MA308)
h
Fig.12
3.2.7 Removing the loading arm assembly
(See Fig.13 , 14)
• Remove the top cover, the mechanism section and the front
unit. (1) From the top of the body, move the loading arm assembly
from the front side upward, and release the bosses from the right and left joints k and m of the chassis base assem­bly.
(2) Release the boss from notch n of the connect arm on the
right side of the body, and release the boss from notch p of the slide cam assembly on the left side.
m
Loading arm assembly
Side cam assembly
p
m
k
Fig.13
Loading arm assembly
k
n
n
Connect arm
Fig.14
(No.MA308)1-21
3.2.8 Removing the rod (L)(R)/roller assembly (See Fig.15 and 16)
• Remove the top cover, the mechanism section, the front unit
and the loading arm assembly. (1) Release the rod (L) and (R) from the joints q at the bottom
of the loading arm assembly (See Fig.15.)
(2) Remove the roller assembly from the loading arm assem-
bly. (See Fig.16.)
(3) Remove the two collars and washer from the roller assem-
bly. (See Fig.16.)
Caution:
After attaching the loading arm assembly to the roller assem­bly, attach the rod (L) and (R). Attach the rods to the right and left collars of the roller. (See Fig.15.) When reattaching the rod (L) and (R) to the loading arm as­sembly, engage each joint as shown in Fig.15. As joints q of the rod (L), let the rod through q before reattaching it.
Collar
Collar
Rod(R) Rod(L)
q
q
q
Collar
Rod(L)
Rod(R)
q
Loading arm assembly
Fig.15
Roller assembly
Loading arm assembly
q
Rod(L)
q
Collar
Washer
Rod(R)
1-22 (No.MA308)
Fig.16
3.2.9 Removing the DVD pickup assembly
(See Fig.17 to 19)
• Remove the mechanism control board.
(1) From the bottom of the body, turn the feed gear in the di-
rection of the arrow to move the DVD pickup outwards. (See Fig.17.)
(2) Remove the screw J attaching the thrust spring. (See
Fig.17.)
(3) Remove the DVD pickup assembly upward on the L.S.gear
side and release from sub shaft at joint r. Move the lead screw of the DVD pickup assembly in the direction of the arrow to release from joint s. (See Fig.18.)
Caution:
• When releasing the lead screw at joint s, the L.S.collar comes off at the end of the lead screw. When reas­sembling, reattach the L.S.collar to the lead screw and engage joint s. (See Fig.18.)
• When reattaching the L.S.collar, reattach it to the point s of the lead screw, and to the rod (M). Make sure that the L.S.collar is set on the rod (M) spring. (See Fig.18.)
(4) Remove the screw K attaching the rack spring/ rack plate
on the DVD pickup. (See Fig.19.)
(5) Pull out the lead screw. (See Fig.19.)
Caution:
Perform adjustment after replacing the pickup.
DVD Pickup assembly
DVD Pickup assembly
Feed gear
J
Thrust spring
Fig.17
s
L.S.collar
Rod(M)
Lead screw
Sub shaft
L.S.collar
r
L.S.gear
Fig.18
K
Rack spring
Lead screw
Rack plate
DVD Pickup
Fig.19
(No.MA308)1-23
3.2.10 Removing the spindle motor
r
(See Fig.20)
• Remove the mechanism control board. Remove the two screws L attaching the spindle motor on the bottom of the body.
Caution:
Perform adjustment when reattaching the spindle motor.
3.2.11 Removing the feed motor assembly
(See Fig.21 and 22)
• Remove the mechanism control board. (1) Remove the feed TRI. spring on the bottom of the body.
(See Fig.21.)
(2) Remove the two screws M attaching the feed motor as-
sembly. (See Fig.21.)
(3) Remove the slit washer from the motor H. assembly and
pull out the worm wheel. (See Fig.22.) Remove the two screws N attaching the feed motor. (See Fig.22.)
Spindle motor
Feed TRI. spring
L
Fig.20
M
Feed motor assembly
1-24 (No.MA308)
Fig.21
Slit washer
Worm wheel
Feed moto
N
Motor H. assembly
Fig.22

3.3 DVD mechanism assembly (for KD-DVH426)

3.3.1 Removing the mechanism control board (See Fig.1)
Caution:
Before disconnecting the flexible wire extending from the DVD pickup, solder the short-circuit point on the flexible wire using a grounding soldering iron. If you do not follow this instruction, the DVD pickup may be damaged. (1) Turn over the body, and solder the short-circuit points on
the flexible wire extending from the DVD pickup.
(2) Disconnect the flexible wire from connector CN101
mechanism control board.
(3) Disconnect the card wire from connector CN201
mechanism control board.
(4) Disconnect the flexible wire from connector CN202
mechanism control board.
(5) Unsolder two soldered points a on the mechanism control
board and remove the wire extending from the feed motor. (6) Remove the screw A attaching the lug wire. (7) Remove the two screws B and screw C attaching the
mechanism control board.
Caution:
• As the flexible wire to be connected to CN101
attach it to the mechanism control board using a double tape.
• After reassembling, unsolder the short-circuit points.
on the
on the
on the
, make sure to
Flexible wire
Double tape
CN101
B
Short-circuit points
A
Lug wire
B
CN201
Feed motor
a
C
CN202
Mechanism control board
Fig.1
(No.MA308)1-25
3.3.2 Removing the top cover (See Fig.2)
(1) Remove the two screws D attaching the top cover on the
back of the body.
(2) Remove the top cover upward.
Reference:
When reassembling, set part b of the top cover under the bending part c of the chassis frame.
3.3.3 Removing the mechanism section (See Fig.2 to 4)
• Remove the top cover.
(1) From the bottom of the body, remove the screw E attaching
the lug wire. (See Fig.2.)
(2) Remove the two screws F attaching the right and left stop-
pers on the front side. (See Fig.2.)
(3) Remove the two floating springs on the bottom of the body.
(See Fig.3.)
(4) Move the mechanism section upward and remove from the
chassis frame. The three damper springs come off from the dampers. (See Fig.4.)
Caution:
• When reassembling, reattach the damper spring to the damper respectively and insert the three shafts on the bot­tom of the mechanism to the dampers.
• Before inserting the shaft to the dampers, apply IPA to the hole of damper.
Floating spring
Fig.3
Mechanism section
Stopper
F
Top cover
Stopper
F
D
D
b
c
E
Lug wire
Damper SP.(F)
(Silver)
Damper (F) (Black)
Damper SP.(F)
(Silver)
Damper (F) (Black)
Fig.4
Damper SP.(R)
(Red)
Damper (R) (Purple)
Chassis frame
1-26 (No.MA308)
Fig.2
3.3.4 Removing the clamper unit (See Fig.5 to 7)
• Remove the top cover and the mechanism section.
(1) Remove the clamper2 spring on the bottom of the mecha-
nism section. (See Figs.5.and 6.)
(2) Release the part d of the clamper spring from the bending
part of the chassis base assembly. (See Fig.7.)
(3) Move the clamper unit in the direction of the arrow and turn.
Release the two joints e and f, then remove the clamper unit upward. (See Fig.6.)
3.3.5 Reattaching the clamper unit (See Fig.5 to 9)
(1) Attach the clamper spring to the clamper unit. (See Fig.8.) (2) Move the clamper unit to set the side joints e and f to each
boss of the chassis base assembly. Make sure that part g is inserted to the notch of the chassis base assembly. (See Figs.5 and 9.)
(3) Move the part d of the clamper spring to the outside of the
bending part of the chassis base assembly. (See Fig.7.)
(4) Attach the clamper2 spring to the chassis base assembly.
(See Figs.5 and 6.)
Caution:
When reattaching, temporarily hook the end of the clamper spring as shown in the figure to make the work easy. (See Fig.8.)
Clamper unit
Clamper2 spring
Chassis base assembly
Fig.6
Clamper spring
Clamper spring
f
Clamper2 spring
Chassis base assembly
g
d
Chassis base assembly
Fig.7
e
Fig.5
(No.MA308)1-27
Clamper unit
Clamper unit
Clamper spring
Fig.8
1-28 (No.MA308)
Fig.9
g
Notch
3.3.6 Removing the front unit (See Fig.10 to 12)
• Remove the top cover and the mechanism section.
(1) Disconnect the flexible wire from connector CN202
mechanism control board at the bottom of the body. (See Fig.10.)
(2) Remove the screw G attaching the front unit on the top of
the body. (See Fig.11.)
(3) Move the front unit toward the front to release joint h, and
release two joints i and j on the right side of the chassis base assembly. Then remove the front unit upward. (See Figs.11 and 12.)
(4) Remove the two screws H attaching the switch board. (See
Fig.12.)
Reference:
You can remove the switch board only without removing the front unit.
Caution:
When reassembling, attach the flexible wire extending from the switch board using the double tape. (See Figs.10 and 12.)
Mechanism control board
on the
G
Front unit
h
Fig.11
CN202
Double tape
Fig.10
Flexible wire
Double tape
j
i
H
Switch board
Front unit
G
Fig.12
h
(No.MA308)1-29
3.3.7 Removing the loading arm assembly (See Fig.13 , 14)
• Remove the top cover, the mechanism section and the front
unit. (1) From the top of the body, move the loading arm assembly
from the front side upward, and release the bosses from the right and left joints k and m of the chassis base assem­bly.
(2) Release the boss from notch n of the connect arm on the
right side of the body, and release the boss from notch p of the slide cam assembly on the left side.
m
Loading arm assembly
Side cam assembly
p
m
k
Fig.13
Loading arm assembly
k
n
n
Connect arm
1-30 (No.MA308)
Fig.14
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