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KDADV-5380-J
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JVC KDADV-5380-J Service manual

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-DHV426UN
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)
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