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JVC KD-ADV7380J Service Manual
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JVC KD-ADV7380J Service Manual

JVC KD-ADV7380J Service Manual

Dvd/cd receiver
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SERVICE MANUAL
2007
4 S ERVICE MANUAL
MA312
KD-ADV7380J, KD-DV7300J, KD-DV7301E,
KD-DV7301EU, KD-DV7302E, KD-DV7302EU,
KD-DV7304UI, KD-DV7305U, KD-DV7305UN,
KD-DV7305UT, KD-DV7305A, KD-DV7306U,
KD-DV7306UN, KD-DV7306UT, KD-DV7306A,
KD-DV7307EE, KD-DV7308EE, KD-DV7388UF
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)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-31
DVD/CD RECEIVER
KD-ADV7380
KD-DV7300

TABLE OF CONTENTS

COPYRIGHT © 2007 Victor Company of Japan, Limited
KD-ADV7380
KD-DV7300
KD-DV7301
KD-DV7302
KD-DV7307
KD-DV7308
No.MA312
2007/4

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Summary of Contents for JVC KD-ADV7380J

  • Page 1: Table Of Contents

    SERVICE MANUAL DVD/CD RECEIVER MA312 2007 4 S ERVICE MANUAL KD-ADV7380J, KD-DV7300J, KD-DV7301E, KD-DV7301EU, KD-DV7302E, KD-DV7302EU, KD-DV7304UI, KD-DV7305U, KD-DV7305UN, KD-DV7305UT, KD-DV7305A, KD-DV7306U, KD-DV7306UN, KD-DV7306UT, KD-DV7306A, KD-DV7307EE, KD-DV7308EE, KD-DV7388UF KD-DV7301 KD-DV7302 KD-DV7307 KD-DV7308 KD-ADV7380 KD-ADV7380 KD-DV7300 KD-DV7300 COPYRIGHT © 2007 Victor Company of Japan, Limited...
  • Page 2 SPECIFICATION KD-ADV7380/KD-DV7300 AUDIO AMPLIFIER SECTION 20 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N Power Output 80 dBA (reference: 1 W into 4 Ω) Signal to Noise Ratio 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Equalizer Control Range Frequencies...
  • Page 3 Quantization Bit Rate 16 bit Sampling Frequency 44.1 kHz USB SECTION USB Standard USB 1.1/USB 2.0 Data Transfer Rate Full Speed Max. 12 Mbps Low Speed Max. 1.5 Mbps Compatible Device Mass storage class Compatible File System FAT 12/16/32 Playable Audio/Video Format DivX/MPEG Video/MP3/WMA/AAC/WAV Max.
  • Page 4 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 720 × 480 pixels (30 fps) DivX/MPEG Video Video Max.
  • Page 5 1 Vp-p/75 Ω Video Output (composite) Other Terminal CD changer, LINE IN, 2nd AUDIO OUT TUNER SECTION Frequency Range 87.5 MHz to 108.0 MHz 531 kHz to 1 602 kHz 11.3 dBf (1.0 µV/75 Ω) FM Tuner Usable Sensitivity 16.3 dBf (1.8 µV/75 Ω) 50 dB Quieting Sensitivity Alternate Channel Selectivity (400 kHz) 65 dB...
  • Page 6 KD-DV7306/KD-DV7305 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more than 0.8% total har- Continuous Power Output (RMS) Front/Rear monic distortion 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Equalizer Control Range Frequencies...
  • Page 7 Compatible Device Mass storage class Compatible File System FAT 12/16/32 Playable Audio/Video Format DivX/MPEG Video/MP3/WMA/WAV Max. Current 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 ×...
  • Page 8 720 × 480 pixels (30 fps) DivX/MPEG Video Video Max. Resolution 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 MPEG-2: 16 kHz, 22.05 kHz, 24 kHz Sampling Frequency: MPEG Video 32 kHz, 44.1 kHz, 48 kHz Bit Rate...

  • Page 9: Precaution

    SECTION 1 PRECAUTION Safety Precautions 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.
  • Page 10 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.
  • Page 11 Important for laser products 1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able to function. 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation 6.CAUTION : Use of controls, adjustments or performance of when open.

  • Page 12: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-12 (No.MA312)

  • Page 13: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the BOTTOM CHASSIS (See Fig.1) (1) Disengage the five hooks a engaged BOTTOM CHASSIS. hook hook hook Fig.1 3.1.2 Removing the HEAT SINK (See Fig.2) (1) Remove the four screws A attaching the HEAT SINK. Fig.2 3.1.3 Removing the FRONT CHASSIS (See Fig.3, 4)
  • Page 14 3.1.4 Removing the MAIN BOARD assembly (See Fig.5, 6) (1) Remove the three screws D attaching the REAR BRACK- ET. (See Fig.5) (2) Remove the three screws E attaching the MAIN BOARD assembly. (See Fig.6) (3) Disconnect the connector CN501 connected MAIN BOARD assembly and DVD mechanism assembly.
  • Page 15 3.1.6 Removing the REAR COVER (See Fig.8, 9) (1) Remove the VOLUME KNOB. (2) Remove the one screw G attaching the REAR COVER. (See Fig.8) (3) Remove the four screws H attaching the REAR COVER. (See Fig.9) (4) Disengage nine hooks c engaged REAR COVER. (See Fig.9) Fig.8 hook...
  • Page 16 DVD mechanism assembly 3.2.1 Removing the mechanism control board (See Fig.1) Caution: Before disconnecting the flexible wire extending from the DVD Lug wire Flexible wire pickup, solder the short-circuit point on the flexible wire using Feed motor a grounding soldering iron. If you do not follow this instruction, Double tape the DVD pickup may be damaged.
  • Page 17 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.
  • Page 18 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- Clamper2 spring 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.
  • Page 19 Clamper unit Clamper spring Fig.8 Clamper unit Notch Fig.9 (No.MA312)1-19...
  • Page 20 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 Front unit Fig.10.) (2) Remove the screw G attaching the front unit on the top of the body.
  • Page 21 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 assem- bly.
  • Page 22 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. Collar Collar (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.
  • Page 23 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- Feed gear rection of the arrow to move the DVD pickup outwards. (See Fig.17.) (2) Remove the screw J attaching the thrust spring.
  • Page 24 3.2.10 Removing the spindle motor (See Fig.20) • Remove the mechanism control board. Remove the two screws L attaching the spindle motor on the Spindle motor bottom of the body. Caution: Perform adjustment when reattaching the spindle motor. Fig.20 3.2.11 Removing the feed motor assembly (See Fig.21 and 22) •...

  • Page 25: Adjustment

    SECTION 4 ADJUSTMENT Test instruments required for adjustment Standard measuring conditions (1) Digital oscilloscope (100MHz) Power supply voltage : DC14.4V(11V to 16V) Load impedance : 4 Ω (2 Speakers connection) (2) Jitter meter Line output : 20k Ω (3) Digital tester (4) Electric voltmeter Caution: (5) Tracking offset meter...
  • Page 26 Adjustment method for jitter After replacing the pickup, set the unit in the service mode to display a jitter value on the LCD. Confirm that the jitter value measured with a jitter meter is within 12% of the jitter value displayed on the LCD. If it is within 12%, then adjustment is not necessary.
  • Page 27 Jitter value conversion table Load the test DVD and set the unit to the service mode. A jitter value converted to the hex value is displayed on the LCD. Refer to the corresponding decimal notation value shown in the following Jitter Conversion Table. The adjustment is OK if the jitter value measured with a jitter meter is within 12% of the jitter value displayed on the LCD.
  • Page 28 Operation procedures Keep this state more than 2 seconds while continuing pressing the [SEL] button, [STANDBY/ON ATTENUATOR] button and [SOURCE] button sequentially. The unit enters the service mode. "INIT ALL" is Press the [SEL] key Initialize all data to the factory setting indicated on the LCD.
  • Page 29 Detailed error code (2 bytes) *Displayed with loading/ejection error only..First byte Higher 4 bits Route NO. (Process of error occurrence) Refer to charts 1.1 and 1.2..Lower 4 bits Error type [1] Time out [2] Switch status error [3] Swinging error...
  • Page 30 DVD unit check mode Change LCD indication with a [FF ] button and a [REW ] button. Check item list Example of A/D key DVD unit operation Indication contents LCD indication Start at normal speed NORMPLAY (After start, it is measured JITTER on the Laser current value * * * * internal position)

  • Page 31: Troubleshooting

    SECTION 5 TROUBLESHOOTING 16PIN CORD DIAGRAM (for KD-ADV7380) GN/BK WH/BK Black Green GY/BK VI/BK Violet Gray Blue White Yellow BL/WH Yellow Green Brown OR/WH Orange MEMORY OR/WH ILLUMINATION CONTROL WH/BK GY/BK GN/BK VI/BK REMOTE BL/WH TEL MUTING PARKING PARKING BRAKE Rear Right ACC Line Front Right...
  • Page 32 16 PIN CORD DIAGRAM (for KD-DV7300) Black Green GN/BK WH/BK Violet VI/BK GY/BK Gray Blue White Yellow Yellow Green Orange BL/WH OR/WH 1 BK MEMORY 16 YL 2 RD 15 OR/WH ILLUMINATION CONTROL 9 WH 10 WH/BK 12 GY 11 GY/BK 8 GN 7 GN/BK 5 VI...
  • Page 33 16 PIN CORD DIAGRAM (for KD-DV7301, KD-DV7302, KD-DV7307, KD-DV7308) Black Green Violet GN/BK WH/BK Gray VI/BK Blue GY/BK White Yellow Orange Brown Yellow Green BL/WH OR/WH BL/WH OR/WH 2 RD RD 7 MEMORY 16 YL YL 4 1 BK 3 BL/WH REMOTE 13 BR TEL MUTING...
  • Page 34 16 PIN CORD DIAGRAM (for KD-DV7304, KD-DV7305, KD-DV7306) Black Green GN/BK WH/BK Violet VI/BK GY/BK Gray Blue White Yellow Brown Orange BL/WH Yellow Green OR/WH 1 BK MEMORY 16 YL 2 RD 15 OR/WH ILLUMINATION CONTROL 9 WH 10 WH/BK 12 GY 11 GY/BK 8 GN...
  • Page 35 16 PIN CORD DIAGRAM (for KD-DV7308) Black Green GN/BK WH/BK Violet VI/BK GY/BK Gray Blue White Yellow BL/WH YellowGreen Brown OR/WH Orange OR/WH YL 2 OR/WH GN/BK VI/BK WH/BK GY/BK BL/WH VI/BK GY/BK WH/BK GN/BK (No.MA312)1-35...
  • Page 36 Victor company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan (No.MA312) Printed in Japan...

This manual is also suitable for:

Kd-dv7301eKd-dv7300jKd-dv7301euKd-dv7302eKd-dv7302euKd-dv7304ui ... Show all