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SERVICE MANUAL
2009
3 S ERVICE MANUAL
MA446
KD-AVX20E, KD-AVX20EU, KD-AVX20EE,
KD-AVX20UT, KD-AVX20A, KD-AVX40J,
KD-AVX40E, KD-AVX40EE
Only for
KD-AVX40J
COPYRIGHT © 2009 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
DVD/CD RECEIVER
Except KD-AVX40J

TABLE OF CONTENTS

COPYRIGHT © 2009 Victor Company of Japan, Limited
Except KD-AVX20UT,
Only for KD-AVX40
KD-AVX20A, KD-AVX40J
Except KD-AVX40J
No.MA446
2009/3

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Table of Contents

   Related Manuals for JVC KD-AVX20E

   Summary of Contents for JVC KD-AVX20E

  • Page 1: Table Of Contents

    SERVICE MANUAL DVD/CD RECEIVER MA446<Rev.001> 2009 3 S ERVICE MANUAL KD-AVX20E, KD-AVX20EU, KD-AVX20EE, KD-AVX20UT, KD-AVX20A, KD-AVX40J, KD-AVX40E, KD-AVX40EE Except KD-AVX40J Only for Except KD-AVX20UT, Only for KD-AVX40 KD-AVX40J Except KD-AVX40J KD-AVX20A, KD-AVX40J COPYRIGHT © 2009 Victor Company of Japan, Limited...
  • Page 2 SPECIFICATION KD-AVX40J 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 60.0 Hz, 150.0 Hz, 400.0 Hz, 1.0kHz, 2.5kHz, 6.3kHz,...
  • Page 3 Compatible Device Mass storage class Compatible File System FAT 32/16/12 Max. Current DC 5 V 500 mA BLUETOOTH Version Bluetooth 1.2 certified Output Power +4 dBm Max. (Power class 2) Service Area Within 10 m (10.9 yd) Profile HFP (Hands-Free Profile) 1.5 OPP (Object Push Profile) 1.1 A2DP (Advanced Audio Distribution Profile) 1.2 AVRCP (Audio/Video Remote Control Profile) 1.3...
  • Page 4 DVD/CD Signal Detection System Non-contact optical pickup (semiconductor laser) Frequency Response DVD, fs=48/96 kHz 16 Hz to 22 000 Hz VCD/CD 16 Hz to 20 000 Hz Dynamic Range 93 dB Signal-to-Noise Ratio 95 dB Wow and Flutter Less than measurable limit MONITOR Screen Size 3.5 inch wide liquid crystal display...
  • Page 5 Signal-to-Noise Ratio 70 dB Audio Output Level LINE Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) OUT (REAR)/SUBWOOFER Output Impedance 1 kΩ Color System NTSC/PAL 1 Vp-p/75 Ω Video Output (composite) Other Terminals Input LINE IN, VIDEO IN, USB input terminal, Antenna input Output VIDEO OUT, DIGITAL OUT Others...
  • Page 6: 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 7 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 8 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 9: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Main body (Used figure are KD-AVX40J) 3.1.1 Removing the Bottom chassis (See Fig.1 to 4) (1) Remove the two screws A and two screws B attaching the Heat sink.
  • Page 10 Fig.9 Fig.6 3.1.4 Removing the Connection board (See Fig.10) (5) Remove the one screw J attaching the Heat sink. (See (1) Disconnect the card wire from DVD mechanism connected Fig.7) to connector CN395 of the Connection board. (6) Remove the four screws K and one screw L attaching the (2) Disconnect the connector wire from BT antenna connected Rear bracket.
  • Page 11 DVD mechanism assembly section 3.2.1 Removing the Traverse mechanism assembly (See Fig.1 to 6) (1) Solder the short land section on the flexible wire of pickup. (See Fig.1) Caution: * Solder the short land section on the flexible wire of pickup before disconnecting the flexible wire form the connector CN101 on the Front end board.
  • Page 12 3.2.2 Removing the Front end board (See Fig.7) (1) Remove the Motor wires from loading motor soldered to TP79 TP81 of the Front end board. Loading arm (2) Remove the two screws B attaching the Front end board. spring L TP81 TP79 Fig.9...
  • Page 13 3.2.6 Removing the Loading moor assembly (See Fig.12) 3.2.9 Removing the Loading motor (See Fig.15 to 18) (1) Remove the three screws E attaching the Loading motor (1) Remove the A wheel gear. (See Fig.15) assembly. (2) Remove the A worm gear, M connect gear and M wheel gear by sequentially.
  • Page 14 3.2.10 Removing the Roller assembly (See Fig.19) 3.2.11 Removing the Roller (See Fig.20) (1) Remove the Slit washer. (1) Remove the Slit washer. (2) Remove the R middle gear. (2) Pull out the Roller shaft. (3) Remove the R connect gear. CAUTION: (4) Snap off the part a of the Roller assembly.
  • Page 15: Adjustment

    SECTION 4 ADJUSTMENT Test instruments required for adjustment Standard volume position (1) Digital oscilloscope (100MHz) Balance and Bass &Treble volume : lndication"0" (2) Digital tester Loudness : OFF (3) Test Disc Dummy load (4) Extension cable : EXTAV70X-50PF Exclusive dummy load should be used for AM, and FM. EXTGS004-26PL For FM dummy load, there is a loss of 6dB between SSG out- EXTSH002-22P...
  • Page 16: No.ma446)1

    Service mode 4.6.1 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 [ ] button NO EJECT? and [...
  • Page 17 4.6.2 Service mode 2 Set to service mode 2: [SOURCE] [EJECT] [MENU] [PLAY/PAUSE] [FOLDER UP] Screen indication SERVICE MODE 2 INITIALIZE ALL INITIALIZE INITIALIZE DVD INITIALIZE BT Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
  • Page 18 4.6.3 Service mode 3 Set to service mode 3: [SOURCE] [EJECT] [MENU] [PLAY/PAUSE] [DISP] Screen indication SERVICE MODE 3 SERVICE MODE 3 INITIALIZE ALL RUNNING MODE Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
  • Page 19 4.6.4 Service mode 4 Set to service mode 4: [SOURCE] [EJECT] [MENU] [PLAY/PAUSE] [REW] Screen indication SERVICE MODE 4 RDS S MODE MONITOR S MODE HD RADIO S MODE Exchanging it operate a menu of a service mode with the [ ] button and [ ] button.
  • Page 20 Error code tables 4.8.1 Mechanism error code Error contents Details Error code Detailed error code Disc loading error (3) D1 time out 0013 Eject error (3) B1 time out 0023 (4) C1 time out 0024 Error in loading wait Loading of a running mode 0031 Disc was pulled out in a wait.
  • Page 21 Error code Detail (Service mode) Open error 0A0001 1. Time out error by OPEN position cannot detect. Close error (ANGLE 1 error) 0B0006 1. Time out error by ANGLE 1 position cannot detect. Angle positioning error Moving to 10 degrees (ANGLE 2 error) 1.
  • Page 22 4.10 Monitor adjustment * When adjusting, switch on the main unit and insert a test disc (VT-501). And play the test disc and pause it. 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 23 00037 00000 00255 00227 00227 Conversion coefficients from YUV to RGB (PBCL) 00038 00000 00255 00218 00218 Conversion coefficients from YUV to RGB (YCL) 00039 00000 00255 00199 00199 Conversion coefficients from YUV to RGB (BCL) 00040 00000 00511 00261 00261 Conversion coefficients from YUV to RGB (RCL) 00041...
  • Page 24 00084 00000 00255 00035 00035 Appoint gamma revision gain 5 of the Green signal 00085 00000 00255 00035 00035 Appoint gamma revision gain 6 of the Green signal 00086 00000 00255 00035 00035 Appoint gamma revision gain 7 of the Green signal 00087 00000 00255...
  • Page 25 00130 00000 16383 00220 00220 Amplitude killer off level setting 00131 00000 16383 00212 00212 Amplitude killer on level setting 00132 00000 00127 00071 00071 Clamp DC level adjustment setting 00133 00000 00015 00015 00015 Clamp speed adjustment setting Noise filter band setting of horizontal synchronization signal 00134 00000 00063...
  • Page 26: Troubleshooting

    SECTION 5 TROUBLESHOOTING 16 PIN CORD DIAGRAM (for KD-AVX40J, KD-AVX20UT/A) Black Gray GN/BK WH/BK Brown VI/BK GY/BK Blue Yellow Green White Orange Violet Yellow BL/WH Green OR/WH OR/WH BL/WH GN/BK VI/BK WH/BK GY/BK 1-26 (No.MA446<Rev.001>)
  • Page 27 16 PIN CORD DIAGRAM (for KD-AVX40E/EE, KD-AVX20E/EU/EE) GN/BK WH/BK Black Gray VI/BK GY/BK Brown Blue Yellow Green White Orange BL/WH Violet Yellow OR/WH Green BL/WH BL/WH OR/WH OR/WH GN/BK VI/BK WH/BK VI/BK GY/BK WH/BK GY/BK GN/BK (No.MA446<Rev.001>)1-27...
  • Page 28 Victor Company of Japan, Limited Mobile Entertainment Division 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA446<Rev.001>) Printed in Japan...

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