JVC MX-JE3 Service Manual
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JVC MX-JE3 Service Manual

Compact component system
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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
2005
4
MB385
(SP-MXJE3)
(SP-MXJE31)
1
Precaution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
Specific Service Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-34
5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-41
MX-JE3,MX-JE31
(CA-MXJE3)
(CA-MXJE31)

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COPYRIGHT © 2005 Victor Company of Japan, Limited
(SP-MXJE3)
(SP-MXJE31)
MX-JE3
Area suffix
US ------------------------ Singapore
UW ----------- Brazil,Mexico,Peru
UX -------------------- Saudi Arabia
UY ------------------------ Argentina
UG --- Turkey,South Africa,Egypt
UE -----------------------------Turkey
UN ----------------------------- Asean
MX-JE31
Area suffix
UX -------------------- Saudi Arabia
UG --- Turkey,South Africa,Egypt
UN ----------------------------- Asean
No.MB385
2005/4

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  • Page 1 SERVICE MANUAL COMPACT COMPONENT SYSTEM MB385 2005 MX-JE3,MX-JE31 MX-JE3 Area suffix US ------------------------ Singapore UW ----------- Brazil,Mexico,Peru UX -------------------- Saudi Arabia UY ------------------------ Argentina UG --- Turkey,South Africa,Egypt UE -----------------------------Turkey UN ----------------------------- Asean MX-JE31 (SP-MXJE3) (CA-MXJE3) (SP-MXJE3) Area suffix UX -------------------- Saudi Arabia...
  • Page 2 AC 110 V / AC 127 V / AC 220 V / AC 230 V - AC 240 V , (ad- justable with the voltage selector), 50 Hz / 60 Hz Power consumption 125 W (at operation) (MX-JE3/JE31) 17 W (on standby) 265 mm × 335 mm × 352 mm (W/H/D) Dimensions (approx.)

  • Page 3: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...
  • Page 4 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. 1.5.1 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 5 Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated. Avoid direct exposure to beam. procedures other than those specified here in may result in 3.CAUTION : There are no serviceable parts inside the hazardous radiation exposure.

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB385)

  • Page 7: Table Of Contents

    SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the metal cover (See Figs.1 to 3) (1) From the both sides of the main body, remove the two screws A attaching the metal cover. (See Figs.1 and 2.) Metal cover (2) From the back side of the main body, remove the six screws B attaching the metal cover.
  • Page 8 3.1.2 Removing the front panel assembly (See Figs.4 to 7) • Remove the metal cover. (1) From the right side of the main body, remove the screw C Plastic rivet attaching the earth wires on the reverse side of the main CN860 CN880 Main board...
  • Page 9 Front panel assembly Fig.6 Front panel assembly Fig.7 (No.MB385)1-9...
  • Page 10 3.1.3 Removing the tuner (See Figs.8 and 9.) • Remove the metal cover. (1) From the top side of the main body, disconnect the card Tuner wire from the connector CN21 on the main board. (See CN410 CN21 Main board Fig.8.) (2) From the back side of the main body, remove the two screws G attaching the tuner to the rear panel.
  • Page 11 3.1.5 Removing the rear panel (See Figs.10 and 11) • Remove the metal cover. (1) From the back side of the main body, remove the screw J attaching the rear cover. (See Fig.10.) (2) Release the sections c and remove the rear cover from the rear panel.

  • Page 12: No.mb385)1

    3.1.6 Removing the DVD mechanism assembly (See Figs.12 and 13) • Remove the metal cover, tuner and video board. (1) From the top side of the main body, remove the three DVD mechanism assembly Center chassis screws M attaching the DVD mechanism assembly on the center chassis.
  • Page 13 3.1.7 Removing the main board (See Figs.14 and 15) • Remove the metal cover, tuner, video board and rear panel. (1) From the right side of the main body, remove the screw N Main board CN880 CN11 CN513 attaching the earth wires on the reverse side of the main board.
  • Page 14 3.1.8 Removing the center chassis assembly (See Fig.16) • Remove the metal cover, tuner, video board and rear panel. (1) From the top side of the main body, disconnect the card Main board wires from the connectors (CN11, CN511, CN513) on the main body.
  • Page 15 3.1.10 Removing the speaker terminal board (See Fig.18.) • Remove the metal cover, tuner, video board, rear panel, main board and center chassis assembly. Speaker terminal board (1) From the top side of the main body, remove the tie band fix- ing the parallel wire.
  • Page 16 3.1.11 Removing the regulator board and main amplifier board (See Figs.19 and 20) • Remove the metal cover, tuner, video board, rear panel, main board, center chassis assembly and speaker terminal board. Main amplifier board (1) From the top side of the main body, disconnect the regula- tor and main amplifier boards in an upward direction while releasing the locks (k, m) of the connectors (CN202, CN202...
  • Page 17 3.1.12 Removing the primary board (See Fig.21) • Remove the metal cover, tuner, video board, rear panel, main board, center chassis assembly, speaker terminal board, reg- Primary board Bottom chassis ulator board and main amplifier board. (1) From the top side of the main body, disconnect the wire from the connector CN119 on the transformer board.
  • Page 18 3.1.13 Removing the FL board (See Figs.22 and 23) • Remove the metal cover and front panel assembly. (1) From the front side of the front panel assembly, pull the vol- ume knob out of the front panel assembly. (See Fig.22.) FL board (2) From the inside of the front panel assembly, remove the six screws T attaching the FL board.
  • Page 19 DVD mechanism section • Remove the DVD mechanism assembly from the main body. (See "3.1.6 Removing the DVD mechanism assembly".) 3.2.1 Removing the clamper base (See Fig.1) (1) From the top side of the DVD mechanism assembly, re- move the two screws A attaching the clamper base. Clamper base (2) Lift the clamper base in an upward direction to remove it from the projections a of the DVD mechanism assembly.
  • Page 20 3.2.3 Removing the traverse mechanism assembly (See Figs.3) (1) From the bottom side of the DVD mechanism assembly, re- move the four screws C attaching the traverse mechanism DVD mechanism assembly assembly. (2) Take out the traverse mechanism assembly with the DVD DVD module board module board.
  • Page 21 3.2.5 Removing the pickup (See Figs.4,6 to 8) • Remove the traverse mechanism assembly. (1) From the side of the traverse mechanism assembly, solder the short land sections d on the pickup. (See Fig.4.) (2) Release the lock of the connector on the pickup in the di- rection of the arrow and disconnect the card wire.
  • Page 22 3.2.6 Attaching the pickup (See Figs.4,6 to 9) • See "3.2.5 Removing the pickup". (1) Attach the shaft, SW actuator and lead spring to the pickup. Pickup (See Fig.8.) (2) Align the pickup to the section n of the traverse mechanism assembly first and set the both ends of the shaft of the pick- up in the sections (k, m) of the traverse mechanism assem- bly.
  • Page 23 3.2.7 Removing the feed motor (See Figs.10 to 12) • Remove the traverse mechanism assembly. (1) From the top side of the traverse mechanism assembly, re- Feed gear M Lead screw move the screw G attaching the plate and thrust spring. Feed motor (See Fig.10.) Feed gear E...
  • Page 24 3.2.9 Removing the switch board (See Fig.14.) (1) From the bottom side of the DVD mechanism assembly, re- move the screw L attaching the switch board. Switch board (2) Disconnect the card wire from the connector on the switch board. (3) Remove the wires from the soldered section u on the Card wire switch board.
  • Page 25 Cassette mechanism assembly section • Prior to performing the following procedures, remove the cassette mechanism assembly. (See "3.1.16 Removing the cassette mechanism assembly".) 3.3.1 Removing the main motor and replacing the main belts (See Figs.1 and 2) (1) From the front side of the cassette mechanism assembly, remove the two screws A attaching the main motor.
  • Page 26 3.3.3 Removing the clutch assemblies (See Figs.4 to 7) • Prior to performing the following procedures, remove the main motor, main belts and F/R belts. Cassette mechanism assembly • Remove the wires of the main motor as required. (1) From the front side of the cassette mechanism assembly, remove the three slit washers attaching the flywheel 1, fly- wheel 2 and flywheel 3.
  • Page 27 3.3.4 Removing the leaf switches (See Fig.8) (1) From the back side of the cassette mechanism assembly, remove the solders from the soldered sections e attaching Switch board the leaf switches on the switch board. (2) From the front side of the cassette mechanism assembly, Wire (Black) pull out the leaf switches.
  • Page 28 3.3.7 Removing the R/P head block (See Fig.10) (1) From the front side of the cassette mechanism assembly, release the claw m in the direction of the arrow 1 and pull Cassette mechanism assembly R/P head out the pinch roller L in an upward direction. (2) Release the claw n in the direction of the arrow 2 and pull out the pinch roller R in an upward direction.

  • Page 29: See Figs.1 To

    Speaker section (For MX-JE3) 3.4.1 Removing the front panel assembly (See Figs.1 to 3) (1) Insert the tip of a flat-bladed screwdriver or similar tool into the space between the speaker main body and front panel Net assembly assembly, and lift the front panel assembly little by little to remove the joint sections a.
  • Page 30 3.4.2 Removing the speaker (See Figs.4 and 5) • Remove the front panel assembly. (1) From the front side of the speaker main body, remove the Speaker four screws A attaching the speaker. (See Fig.4.) (2) Take out the speaker from the speaker main body and dis- connect the wires (red/black, gray/black) from the terminal of the speaker.
  • Page 31 Speaker section (For MX-JE31) 3.5.1 Removing the net assembly (See Fig.1) From the front side of the speaker main body, remove the sec- tions a of the net assembly toward this side. Net assembly Fig.1 (No.MB385)1-31...
  • Page 32 3.5.2 Removing the front panel assembly (See Figs.2 to 4) • Remove the net assembly as required. (1) Insert the tip of a flat-bladed screwdriver or similar tool into Front panel assembly the space between the speaker main body and front panel assembly, and lift the front panel assembly little by little to remove the sections b.
  • Page 33 3.5.3 Removing the speaker (See Figs.5 and 6) • Remove the front panel assembly. (1) From the front side of the speaker main body, remove the Speaker four screws A attaching the speaker. (See Fig.5.) (2) Take out the speaker from the speaker main body and dis- connect the wires (red/black, gray/black) from the terminal of the speaker.

  • Page 34: Adjustment

    SECTION 4 ADJUSTMENT Measurement Instruments Required for Adjustment (1) Low frequency oscillator 4.2.2 Tuner section This oscillator should have a capacity to output 0dBs to FM Band cover: 87.5 - 108.0MHz 600Ω at an oscillation frequency of 50Hz-20kHz. AM Band cover: 531 - 1,710kHz (at 9kHz) (2) Attenuator impedance : 600Ω...
  • Page 35 Arrangement of adjusting positions PB Head REC/PB Head Cassette mechanism assembly (Deck-A) (Deck-B) (Front side) Head azimuth screw Head azimuth screw (Forward side) (Forward side) Head azimuth screw Head azimuth screw (Reverse side) (Reverse side) Tape recorder section Measurement Standard Adjusting Items Measurement method...
  • Page 36 Press the FADE MUTING button again while pressing the ENTER, STANDBY/ON buttons on the remote controller. FL indication ZZ : Region (Example) MX-JE3 MX-JE3 Press the FADE MUTING button again while pressing the ENTER, STANDBY/ON buttons on the remote controller.
  • Page 37 4. Change AM frequency step 9kHz/10kHz (Toggle) Press the STANDBY/ON button while pressing the STOP button on the main unit at standby. ## : 9K or 10K FL indication AM ## Setting of AM frequency is completed. AM frequency changes by the same operation again. 5.
  • Page 38 9. DVD test mode Insert the power cord in an outlet while pressing the SET and buttons on the main unit. TEST FL indication TEST FE Learning Condition Region VERSION VERSION LIST: JC / 1U / D / E / 2U / 3U / UB / UT / 4U / UY / EE / UF Press the "PAUSE"...
  • Page 39 FL indication Press the "1" button on the remote controller. CHECK START PLAY FL indication WOBBLE display Press the "2" button on the remote controller. WOBBLE FL indication CD Laser Current Press the "4" button on the remote controller. CD LASER Current FL indication DVD Laser Current Press the "5"...
  • Page 40 4.5.3 Indicating check for FL display Function FL display Note DVD TEST MODE TEST START By AC cord on with holding SET and (Version info) : VERSION @: FE learning condition #: REGION By pressing PAUSE (Front) A. EEPROM INITIALIZE (NORMAL) B.

  • Page 41: Troubleshooting

    SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MB385)1-41...
  • Page 42 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB385) Printed in Japan...

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