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JVC KD-ADV38J Service Manual
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JVC KD-ADV38J Service Manual

JVC KD-ADV38J Service Manual

Dvd/cd receiver
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Download this manual See also: Instruction Manual
SERVICE MANUAL
4 S ERVICE MANUAL
2007
MA321
KD-ADV38J, KD-AVX33J,
KD-AVX33E, KD-AVX33EE,
KD-AVX33U, KD-AVX33A
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-39
DVD/CD RECEIVER

TABLE OF CONTENTS

COPYRIGHT © 2007 Victor Company of Japan, Limited
KD-ADV38J
KD-AVX33E
KD-AVX33J
KD-AVX33EE
No.MA321
2007/4

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Summary of Contents for JVC KD-ADV38J

  • Page 1: Table Of Contents

    SERVICE MANUAL DVD/CD RECEIVER MA321 2007 4 S ERVICE MANUAL KD-ADV38J, KD-AVX33J, KD-AVX33E, KD-AVX33EE, KD-AVX33U, KD-AVX33A KD-ADV38J KD-AVX33E KD-AVX33J KD-AVX33EE COPYRIGHT © 2007 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
  • Page 2 SPECIFICATION KD-ADV38/KD-AVX33J AMPLIFIER 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 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz...
  • Page 3 Profile HSP (Headset Profile) HFP (Hands-Free Profile) A2DP (Advanced Audio Distribution Profile) AVRCP (Audio/Video Remote Control Profile) SPP (Serial Port Profile) OPP (Object Push Profile) 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)
  • Page 4 USB Standards USB 1.1 Data Transfer Rate Full Speed: Maximum 12 Mbytes Low Speed: Maximum 1.5 Mbytes Compatible Device: Mass storage class Compatible File System: FAT 32/16/12 Max. Current: Less than 500 mA/5 V BLUETOOTH Version Bluetooth 1.2 certified Output Power +4 dBm Max.
  • Page 5 Signal-to-Noise Ratio 95 dB Wow and Flutter Less than measurable limit MONITOR Screen Size 3.5 inch wide liquid crystal display 211 200 pixels: 960 (horizontal) × 220 (vertical) Number of Pixel Drive Method TFT (Thin Film Transistor) active matrix format Color System PAL/NTSC Aspect Ratio...
  • Page 6 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 Frequency Response 40 Hz to 15 000 Hz Stereo Separation 35 dB 20 µV/35 dB AM Tuner Sensitivity/Selectivity DVD/CD...
  • Page 7 Audio Output Level LINE OUT (FRONT/ Line-Out Level/Impedance 5.0 V/20 kΩ load (full scale) REAR)/CENTER OUT/SUBWOOFER Output Impedance 1 kΩ Color System NTSC/PAL 1 Vp-p/75 Ω Video Output (composite) Other Terminals Input LINE IN, VIDEO IN, MIC IN, USB input terminal, Antenna input Output 2nd AUDIO OUT, VIDEO OUT Others...

  • Page 8: 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 9 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 10 Important for laser products when open. Do not stare into beam. procedures other than those specified here in may result in (Others) Visible and/or invisible class 1M laser radiation hazardous radiation exposure. 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.

  • Page 11: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MA321)1-11...

  • Page 12: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the Heat sink (See Fig.1) (1) Remove the two screws A and two screws B attaching the Heat sink. Fig.1 3.1.2 Removing the Top chassis assembly (See Fig.2 to 4) (1) From the top side of the main body, remove the two screws C attaching the both side of Top chassis assembly.
  • Page 13 3.1.3 Removing the Main board assembly (See Fig.5 and 6) (1) Remove the two screws F attaching the Rear bracket as- sembly. (See Fig.5) (2) Disconnect the connector wire from Gear bracket unit con- nected to connector CN891 of the main board assembly. (See Fig.6) (3) Disconnect the connector wire from motor connected to connector...

  • Page 14: See Fig.

    3.1.5 Removing the Connection board assembly (See Fig.8) (1) Disconnect the card wire from DVD mechanism assembly connected to connector CN965 CN969 of the Connec- tion board assembly. (2) Remove the four screws J attaching the Connection board assembly. CN965 CN969 Fig.8 3.1.6 Removing the Rear cover...
  • Page 15 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 16 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 17: See Fig.5 And

    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 18: No.ma321)1

    Clamper unit Clamper spring Fig.8 Clamper unit Notch Fig.9 1-18 (No.MA321)
  • Page 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 Front unit Fig.10.) (2) Remove the screw G attaching the front unit on the top of the body.
  • Page 20 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 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. 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 22 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 23 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 24: Adjustment

    SECTION 4 ADJUSTMENT Test instruments required for adjustment Standard measuring conditions (1) Digital oscilloscope (100MHz) Power supply voltage : DC14.4V(11 to 16V) Load impedance : 4 Ω (2 Speakers connection) (2) Jitter meter (3) Digital tester Line Output : 20kΩ (4) Electric voltmeter Caution: (5) Tracking offset meter...
  • Page 25 Service mode 4.4.1 Service mode 1 (Indication of a service mode 1 is nothing.) Keep this state more 2 seconds while continuing pressing the [STANDBY/ON ATTENUATOR] button and [EJECT] button sequentially. Screen indication Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] NO EJECT? button.
  • Page 26 INITIALIZE DVD Full initialization of EEPROM of a DVD unit ( It is included a permanent domain) After clear completion, this indication is continued till an effective key is input. INITIALIZE DVD OK ** INITIALIZE BT Full initialization of EEPROM of Bluetooth After clear completion, this indication is continued till an effective key is input.
  • Page 27 TEMPERATURE Temperature data reading Temperature data by the temperature sensor in the main micon and JD9-PCB is read every 5 seconds and displayed in hex numbers. MEMORY CHECK (It is displayed only at the time of the disc insertion) Memory residual quantity indication mode Data residual quantity of a disc is displayed by LCD.
  • Page 28 INITIALIZE ALL INITIALIZE ALL (Each EEPROM is initialized by a factory shipment state.) Main micon EEPROM initialization (user entry INITIALIZE ALL INITIALIZE ALL domain, error history, speaker setting, subarea OK ** of J-version, data to pre-set ) Panel micon EEPROM initialization (picture adjustment data) DVD unit EEPROM initialization (except a permanent domain)
  • Page 29 DVD check mode DVD CHECK MODE DVD CHECK MODE DVD CHECK MODE NORMAL PLAY EEPROM DATA DISP STOP EF OUT-TRACKING OFF EEPROM DATA CLEAR OPEN EF IN-TRACKING OFF TEMPERATURE CD-LASER ON SEARCH & JITTER DVD-LASER ON MONITOR DVDx1 JITTER MODE PLAY Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button.
  • Page 30 4.6.2 Disc error code Error contents Details Error code Detailed error code 0x84 0x0059 TOC read error TOC lead movement of a CD is not completed. First track access error Even if TOC reading passes after the end with 0x80 0x0060 CD running mode for 30 seconds, the first track access is not finished.
  • Page 31 Running mode Indication Explanation Operation contents of 1 cycle In mecha error In disc error Door mecha running 1 Panel close Panel open RUNNING1 MECHA RUNNING2 MECHA Door mecha running 2 Panel close Panel open Panel detach position Retry Panel angle RETRY 3 position Panel angle 1 position...
  • Page 32 * Operate a PC as "Waiting updating" indication. 2) Connect a dongle to the USB port of the PC. (* JVC does not always guarantee the operation of dongle from all manufacturers.) * Right screen is an example 3) Select "New connection" from the dongle setting screen.
  • Page 33 5) Select the appropriate device from the screen, and then enter the PIN code "0000". * If There is no input a few minute, the message of " failed" may come out. In that case, please rechoose bluetooth apparatus again. 6) Select the "Serial"...
  • Page 34 9) Right click the newly created connection icon, and then select "Connect". 10) Please download the software for updating from JS-NET. 11) Please unpack the file (double click "Updater_BT.exe") and install in your PC. 12) Please start software "Parrot Flash Update Wizard" installed in procedure 11. 1-34 (No.MA321)
  • Page 35 13) Select the file required for the update. 14) Select "Virtual serial connection". 15) Select the COM port. (The number confirmed in 7.) 16) Select any speed. (Around 460k is OK.) 17) Click "OK". (No.MA321)1-35...
  • Page 36 18) "Success" dialog appears. 19) "Now Updating" appears in the receiver screen after about one minute. Bluetooth Update Now Updating * Note: Never turn off the main power during the above display. 20) "Complete Please Power Off" appears on the receiver screen. Bluetooth Update Complete Please Power Off 21) After turning on the receiver again, confirm whether the "SW BT MODULE"...
  • Page 37 Monitor adjustment * When adjusting, switch on the main unit and insert a test disc (VT-501). And play the test disc and pause it. (Exit for VCO FREE-RUN adjustment) 1. Set the service mode 4. 2. Exchanging it operate a menu of a service mode with the [UP] button and [DOWN] button. 3.
  • Page 38 Indication Minimum Maximum Reference Detail value value register value Com Amp Common pulse amplitude Com DC Preference DC output AFC2 Phase AFC2 phase control DRVSEL Driving ability of pulse output stage Unknown 1 Unknown 2 Unknown 3 DOTCLK Freq. Range DOTCLK adjustment EXCHFI VD phase phase...

  • Page 39: Troubleshooting

    SECTION 5 TROUBLESHOOTING 16 PIN CORD DIAGRAM (for KD-ADV38J, KD-AVX33J) LOCKING THE WIRE WITH INSULOK Black Green CONNECTOR Violet 16PIN MOLEX Gray Blue White Yellow YellowGreen Brown WIRE CUT Orange DIMENSION CASE WH/BK GN/BK VI/BK GY/BK VIEW TOP BL/WH VIEW SIDE...
  • Page 40 16 PIN CORD DIAGRAM (for KD-AVX33E, KD-AVX33EE) Black Green Violet LOCKING THE WIRE WITH INSULOK Gray Blue CONNECTOR White Yellow 16PIN MOLEX YellowGreen Brown OR Orange 300501-2 WH/BK GN/BK VI/BK GY/BK OR/WH BL/WH BL/WH OR/WH YL 1 BL/WH OR/WH GN/BK VI/BK WH/BK GY/BK...
  • Page 41 16 PIN CORD DIAGRAM (for KD-AVX33U, KD-AVX33A) LOCKING THE WIRE WITH INSULOK Black Green CONNECTOR Violet 16PIN MOLEX GY Gray Blue White Yellow YellowGreen Brown WIRE CUT Orange DIMENSION CASE GN/BK WH/BK VI/BK GY/BK VIEW TOP BL/WH VIEW SIDE OR/WH OR/WH WH/BK GY/BK...
  • Page 42 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.MA321) Printed in Japan...

This manual is also suitable for:

Kd-avx33jKd-avx33uKd-avx33aKd-avx33eKd-avx33ee