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JVC MX-C55A Service Manual
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JVC MX-C55A Service Manual

JVC MX-C55A Service Manual

Compact component system
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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
8
2006
MB557
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
MX-C55A
SP-MXC55

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
CA-MXC55
SP-MXC55
No.MB557
2006/8

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Summary of Contents for JVC MX-C55A

  • Page 1: Table Of Contents

    SERVICE MANUAL COMPACT COMPONENT SYSTEM MB557 2006 MX-C55A SP-MXC55 CA-MXC55 SP-MXC55 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION Amplifier section (CA-MXC55) 98 W per channel, min. RMS, driven into 3 Ω at 63 Hz with no more than 10% total har- Output Power SUBWOOFERS monic distortion (IEC 268-3) 80 W per channel, min. RMS, driven into 6 Ω at 1 kHz with no more than 10% total har- MAIN SPEAKERS monic distortion (IEC 268-3) Audio input sensitivity...

  • 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 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 5: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.MB557)1-5...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the top cabinet (See Figs.1 and 2) (1) From the both sides of the main body, remove the six screws A attaching the top cabinet. (See Fig.1) (2) From the back side of the main body, remove the three screws B attaching the top cabinet.
  • Page 7 3.1.3 Removing the main AMP board (See Figs.5 to 7) • Remove the top cabinet and CD mechanism assembly. (1) From the right side of the main body, remove the one screw E attaching the main AMP board to the main body. (See Fig.5) (2) From the top side of the main body, disconnect the wire Main AMP board...
  • Page 8 3.1.6 Removing the front cabinet assembly (See Figs.9 and 10) • Remove the top cabinet and CD mechanism assembly. (1) From the top side of the main body, remove the one screw Front cabinet assembly M attaching the earth wire on the bottom cabinet. (See Fig.9) (2) From the both sides of the main body, remove the two screws N attaching the front cabinet assembly.
  • Page 9 3.1.7 Removing the VFD board (See Fig.11 and 12) • Remove the top cabinet, the CD mechanism assembly and the front cabinet assembly. Preset knob (1) From the front side of the front cabinet assembly, pull out the two knobs. (See Fig.11) (2) From the inside of the front cabinet assembly, remove the seven screws P attaching the VFD board.
  • Page 10 3.1.9 Removing the USB board (See Fig.13) • Remove the top cabinet, CD mechanism assembly, front cab- inet assembly, Knobs and VFD board. LED1 board LED2 board (1) From the inside of the front cabinet assembly, remove the three screws R attaching the USB board. (2) Take out the USB board from the front cabinet assembly.

  • Page 11: Adjustment

    SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MB557)1-11...
  • Page 12 Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB557) Printed in Japan...
  • Page 13 PARTS LIST MX-C55A * All printed circuit boards and its assemblies are not available as service parts. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01~04) 3-12 Packing materials and accessories parts list (Block No.M3)
  • Page 14 Exploded view of general assembly and parts list Block No. VFD board Front board LED1 bo LED3 board...
  • Page 15 CD board SMPS board Main AMP board 1 board LED2 board USB board...
  • Page 16 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local AH64-03850B VFD WINDOW PMMA AH64-03851B CD WINDOW PMMA AH64-03848B VOLUME KNOB PMMA AH67-00408A VOLUME LENS AH81-01982B DECO VOLUME AH64-03849B PRESET KNOB AH81-01996B PRESET DECO AH67-00413A PRESET LENS PMMA AH67-00409B CAP SIDE L...
  • Page 17 Electrical parts list Front board  Symbol No. Part No. Part Name Description Local Block No. [0][1] FR104 2001-000258 C RESISTOR 1.8KΩ 1/8W  Symbol No. Part No. Part Name Description Local FR105 2001-000449 C RESISTOR 2.2KΩ 1/8W FR106 2001-000591 C RESISTOR 3.3KΩ...
  • Page 18  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local UR133 2001-000786 C RESISTOR 47KΩ 1/8W FW103 3708-001696 CONNECTOR UR134 2001-000786 C RESISTOR 47KΩ 1/8W FW104 3711-000967 CONNECTOR 4P 1R 2mm UR135 2001-000786 C RESISTOR 47KΩ...
  • Page 19  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local EC02L 2203-000575 CHIP CAPACITOR 220nF 25V HC05R 2203-000595 CHIP CAPACITOR 0.22nF 50V EC02R 2203-000575 CHIP CAPACITOR 220nF 25V HE002 2401-001508 E CAPACITOR 47uF 16V EC03L 2203-001036...
  • Page 20  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local XC102 2203-000634 CHIP CAPACITOR 0.022nF 50V MR104 2007-000947 CHIP RESISTOR 47Ω 1/8W XC103 2203-000206 CHIP CAPACITOR 100nF 50V MR105 2007-000290 CHIP RESISTOR 100Ω...
  • Page 21  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local HQ01R KTD1304 TRANSISTOR 0501-002184 C140 2203-000239 CHIP CAPACITOR 0.1nF 50V 600 Ω 300mA ML101 3301-001345 FERRITE BEADS C141 2203-000239 CHIP CAPACITOR 0.1nF 50V 600 Ω...
  • Page 22  Symbol No. Part No. Part Name Description Local R114 2007-000941 CHIP RESISTOR 47KΩ R115 2007-000338 CHIP RESISTOR 120KΩ R116 2007-000338 CHIP RESISTOR 120KΩ R117 2007-001039 CHIP RESISTOR 56KΩ R118 2007-001208 CHIP RESISTOR 82KΩ R119 2007-000653 CHIP RESISTOR 27KΩ R120 2007-000941 CHIP RESISTOR 47KΩ...
  • Page 23 <MEMO> 3-11...
  • Page 24 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. 3-12...
  • Page 25 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local AH68-01856D INST BOOK LVT1541-004A ENG AH59-01163L REMOCON AH39-00320C FM WIRE AH42-00023A AM LOOP ANT ------------ BATTERY (x2) AH65-00007A FERRITE CORE ------------ WARANTY CARD ------------ WARANTY CARD AH81-01978A SPEAKER BOX L LEFT...
  • Page 26 SCHEMATIC DIAGRAMS COMPACT COMPONENT SYSTEM MX-C55A CD-ROM No.SML200608 SP-MXC55 CA-MXC55 SP-MXC55 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagrams Standard schematic diagrams Printed circuit boards 2-6 to 9 No.MB557SCH COPYRIGHT 2006 Victor Company of Japan, Limited.
  • Page 27 In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety.
  • Page 28 Block diagram FM / AM POWER STAGE M A I N F U N C T I O N CD / CD-R I N P U T 1 F R O N T PWM AUDIO M U LT I - AUX / GAME I N P U T 2 A / D...
  • Page 29 Standard schematic diagrams Amplifier section CN101 TR02L TR01L 32P, ST ER02R +12V L_OUT AQ102 GND_1 EE011 TR02R TR01R KTA1273 R_OUT -VPP ER02L 220nF 50V TE101 ER112 TUNED 47uF STEREO PROTECT 820K AR101 P-ON/OFF RESET ER111 H/P_SENSE +5. 6V ER105 330K FMU-SM1-15PM FMU-SM1-25PM BASIC D77...
  • Page 30 Front section V F D 1 DIODE MATRIX OPTION MX-C55 UD01 AREA FREQ. STEP SELECT FR323 AREA FREQ. STEP SELECT UD02 63 62 61 60 59 58 57 56 55 54 53 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 UR128 UX103...
  • Page 31 CD section CW107 3P, ANGLE C119 68nF D. OUT C 11 8 R114 10uF R120 47K R119 27K C127 33nF CW101 1 6 P, S T KSA812 Q101 C503 100uF10V S P O R122 C129 1nF R111 82K C115 C116 C501 R123 S P M...
  • Page 32 SMPS section JVC DELETE KTA1273 SMD40 SMQ41 EU01W 100V AREA 200V AREA SMIC45 SMC04 JUMP WIRE 330uF 250V 7808 SMPN02 3P, ANGLE SMC05 330uF 250V 330uF 250V Input Output SMC14 JUMP WIRE 68uF 250V SMC15 68uF 250V 68uF 250V KSA2328A-Y...
  • Page 33 Printed circuit boards Amp board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side reverse side HX-D77/MX-C55 PCB AMP AE101 AE101 SE102 EQ101 EE010 FL + FL - -30V -30V EE010 (2P) SQ107 EE009 ER102...
  • Page 34 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) L D 3 1 0 L D 3 0 9 L D 3 0 8 (Front board) U W 2 0 2 FW401 F R 2 2 2 F R 3 11 MX-C55 FRONT-PCB...
  • Page 35 SMPS board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) SECONDARY PRIMARY SMC04 SMPN01 SMCN01 1 3 : PVDD SMD60 4 6 : P_GND SMR50 7 : - 1 2 V SMFU01 8 : S_GND 9 : 1 2 V T4AL 2 5 0 V (4A 250V)
  • Page 36 CD board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side CW102 JW10 CW107 JW32 CW101 JW21 D301 CW103 R E V C207 A H 4 1 - 0 0 9 2 3 A G6HI-3CD C210 C212L...
  • Page 37 Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB557SCH)

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Sp-mxc55Ca-mxc55