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JVC KS-AR7002J Service Manual

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SERVICE MANUAL
8 S ERVICE MANUAL
2007
MA347
KS-AR7002J, KS-AX5602E,
COPYRIGHT © 2007 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
POWER AMPLIFIER
KS-AX5602U
KS-AR7002
TABLE OF CONTENTS
COPYRIGHT © 2007 Victor Company of Japan, Limited
KS-AX5602
No.MA347
2007/8

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  Summary of Contents for JVC KS-AR7002J

  • Page 1 SERVICE MANUAL POWER AMPLIFIER MA347 2007 8 S ERVICE MANUAL KS-AR7002J, KS-AX5602E, KS-AX5602U KS-AR7002 KS-AX5602 COPYRIGHT © 2007 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION.
  • Page 2 SPECIFICATION KS-AR7002 150 W RMS x 2 channels at 4 Ω and [< or =] 1% THD + N Power Output 80 dBA (reference: 1 W into 4 Ω) Signal-to-Noise Ratio Maximum Power Output 800 W 4 Ω (2 Ω to 8 Ω allowance) Load Impedance 4 Ω...
  • Page 3 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. SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Main body (Using figures are KS-AR7002)
  • Page 4 3.1.2 Removing the CROSSOVER BOARD assembly (See Fig.2, 3) (1) Remove the two screws B attaching the TOP COVER. (See Fig.2) (2) Remove the three knobs. (3) Disconnect the connector wire from CROSSOVER BOARD assembly connected to connector CON1 of the Fig.2 MAIN BOARD assembly.
  • Page 5: Troubleshooting

    3.1.5 Removing the MAIN BOARD assembly (See Fig.5, 6) (1) Remove the five screws F and one screw G attaching the BACK PANEL. (See Fig.5) (2) Remove the nine screws H attaching the TRANSISTOR BRACKET. (See Fig.6) (3) Remove the two screws J attaching the THERMISTOR. (See Fig.6) Fig.5 (4) Remove the nine screws K and one screw L attaching the...
  • Page 6 Victor company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA347) Printed in Japan...
  • Page 7: Parts List

    PARTS LIST KS-AR7002J,KS-AX5602E,KS-AX5602U * 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.01~03) Packing materials and accessories parts list (Block No.M3)
  • Page 8 Exploded view of general assembly and parts list Block No. PWM-C board Main board LED board Illuminator board Sub board The parts without symbol number are not service.
  • Page 9 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local QH700233Z MAIN DIECASTING QH700234Z SUB HEAT SINK QH700235Z SUB HEAT SINK QH700236Z SUB HEAT SINK QP700362Z BACK PANNEL QD700038Z BADGE AR7002J QD700037Z BADGE AX5602E,AX5602U QO400029P TOP CONT SHEET AR7002J QO400025P TOP CONT SHEET...
  • Page 10: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] P4KE DIODE HD100006A  Symbol No. Part No. Part Name Description Local FR104 DIODE HD100003A FMG32S RECTFIAER DIODE HD500010H FMG32R RECTFIAER DIODE HD500009H ICF1 HI300006C NJM 2068(M)
  • Page 11  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local HC205011R METAL CAPACITOR 100nJ 100V (104) RB19 HR300020C CHIP RESISTOR 2012 47 KΩ 1W 4.7 Ω HC300008C CHIP CAPACITOR 2012 222 RB20 HR108002A M.O RESISTOR HC300007C...
  • Page 12  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local HR300011C CHIP RESISTOR 2012 2.7 KΩ HC300007C CHIP CAPACITOR 2012 104 HR300011C CHIP RESISTOR 2012 2.7 KΩ HC300007C CHIP CAPACITOR 2012 104 HR107023A C.F RESISTOR 1/8W 1.5 KΩ1%...
  • Page 13  Symbol No. Part No. Part Name Description Local HC202006R E CAPACITOR 16V 47uF HC202006R E CAPACITOR 16V 47uF CS1A HC300015C CHIP CAPACITOR 2012 47P CS1B HC300015C CHIP CAPACITOR 2012 47P CS2A HC205013R METAL CAPACITOR 82nJ 100V (823) CS2B HC205013R METAL CAPACITOR 82nJ 100V (823) CS3A HC205013R...
  • Page 14 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A9,A10,A11,A12 A1,A2,A3, A4,A5,A6,A7,A8 The parts without symbol number are not service.
  • Page 15 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local LVT1700-001A INST BOOK ENG FRE AR7002J LVT1697-001A INST BOOK ENG FRE AX5602E,AX5602U LVT1700-002A INST BOOK AR7002J LVT1697-002A INST BOOK AX5602E LVT1697-006A INST BOOK CHI THA AX5602U LVT1697-003A INST BOOK...
  • Page 16: Power Amplifier

    SCHEMATIC DIAGRAMS POWER AMPLIFIER KS-AR7002J,KS-AX5602E,KS-AX5602U CD-ROM No.SML200708 KS-AR7002 KS-AX5602 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagram Standard schematic diagrams Printed circuit boards 2-5 to 6 No.MA347SCH COPYRIGHT 2007 Victor Company of Japan, Limited.
  • Page 17 Safety precaution 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.
  • Page 18: Block Diagram

    Block diagram MAIN section LINE ICF3 OUTPUT AMP. LINE INPUT FRONT L/R (LOW) SUB1 section ICF6,ICF7 ICF1 ICF5,VR1 FULL FRONT LEVEL BASS LINEIN AMP. ADJ. ICS1 to ICS5 BOOST VRS1 LINE INPUT FRONT L/R (HIGH) H.P.F ICS6,ICS7 L.P.F ICX1 QA7 to QA11 QA3 to QA6 R AMP.
  • Page 19 Standard schematic diagrams Audio section RA12 RA10 +VCC RA11 RA13 1SR156-400 IRFP240 1SR156-400 +VCC" RA31 100K RA23 FRONT L IN A1220A C1027 C1027 A1220A IRFP240 CA11 CA10 RA21 47/16V RA221 RA30 RA22 C3875 4.7K 100K 1.2K 1.2K 560P RA26 RA27 L CH OUTPUT RAS1 RA16...
  • Page 20 Input/Cross-over/Front section +15V RS9A MC2838 or KDS184 FULL FRONT L OUT ICF3B LINE OUT LCH NJM2068 2.2K RS17A RCA1 4.7K RS11A CS2A CS1A ICF6A CS4A C50KX4 CS3A C50KX4 X- OVER -15V RF13A 4.7K NJM2068 RS3A VRS1 VRS1 VRS1 RS5A C50KX4 ICS1A ICS3A NJM2068...
  • Page 21 Power section 2.7K 3.3K +VCC 2.7K 1N4148 LED1A RP15 +15V LED2A BLUE 47/2W(S) BLUE RP13 RP11 680/25V 470/16V 10/100V 4.7K 3.3K C3875 CP13 CP15 DC P.T REMOTE RP12 A1661 2.7K C3875 470/16V 680/25V CP16 4.7K 100/16V RP14 RPS1 1N4148 C3875 CP14 5.6K 2.2K...
  • Page 22: Printed Circuit Boards

    Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side RB26 RB27 CON2 CP22 CP23 RB28 RA22 CP25 CP24 CB10 J104 FET6 RP23 RA23 J103 RP22 FET5 RA16 RA21 RA221 RP17...
  • Page 23 Sub board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side CS2B CS3B RS16B RF10A RS8B RS3A ICF5 RS8A RF14B CF10A CF8B ICF6 RF10B CS1B CS3A RF13B CS4B CS1A RS12B CS6B RS3B ICS1 RF15B ICF7...
  • Page 24 < M E M O >...
  • Page 25 Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken,371-8543,Japan Printed in Japan (No.MA347SCH)

This manual is also suitable for:

Ks-ax5602eKs-ax5602u