JVC KS-AX6700 Service Manual

JVC KS-AX6700 Service Manual

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3 7 63 1515 0

SERVICE MANUAL

TE
L 13942296513
Caution
If electricity is connected during disassembly, it must be a no load current. If it is load
current, be sure to attach a heat sink to the power-amp IC. This will be damaged if the
above precautions are not followed, as it does not have a sub heat sink attached to it.
Contents
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http://www.xiaoyu163.com

POWER AMPLIFIER

KS-AX6700
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u163
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This service manual is printed on 100% recycled paper.
COPYRIGHT
2000 VICTOR COMPANY OF JAPAN, LTD.
http://www.xiaoyu163.com
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KS-AX6700
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Areas suffix
J -------- Nothem America
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E ----- Continental Europe
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No. 49559
Jun. 2000
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  Summary of Contents for JVC KS-AX6700

  • Page 1: Table Of Contents

    KS-AX6700 3 7 63 1515 0 SERVICE MANUAL POWER AMPLIFIER KS-AX6700 Areas suffix J -------- Nothem America L 13942296513 E ----- Continental Europe Caution If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC.
  • Page 2: Safety Precaution

    KS-AX6700 Safety precaution 3 7 63 1515 0 ! CAUTION 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 3: Location Of Main Parts

    KS-AX6700 3 7 63 1515 0 Location of main parts Volume knob Control panel Heat sink Switch knob L 13942296513 Heat sink Rear panel Fuse Output terminal Input for power Low input(R) Heat sink Front panel u163 High input connector Low input(L) http://www.xiaoyu163.com...
  • Page 4 KS-AX6700 3 7 63 1515 0 Heat sink (Bottom view) Main P.C. board GND wire Sub1 P.C. board L 13942296513 Main P.C. board 2pin connector Sub2 P.C. board (to CCFL P.C. board) Wire assemb'y (from Main) u163 CCFL P.C. board...
  • Page 5: Removal Of Main Parts

    KS-AX6700 3 7 63 1515 0 Removal of main parts CAUTION: electricity connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC. This will be...
  • Page 6 KS-AX6700 3 7 63 1515 0 Remove the 6 screws E retaining the panels on both Rear panel sides of the main unit. Fig. 5 Front panel Fig. 6 Remove the 13 screws F attaching the main P.C. board to the bottom of the main unit.
  • Page 7 KS-AX6700 3 7 63 1515 0 Removing the CCFL board (see Fig. 9 to 12) Remove the bottom cover. CCFL cover Then remove the Main P.C. board. From the bottom side of the main unit, remove the 4 screws G retaining the CCFL cover.
  • Page 8: Adjustment Method

    KS-AX6700 3 7 63 1515 0 Adjustment method Check the voltage and frequency of the secondary FREQUENCY COUNTER toroidal coil. POWER SUPPLY FREQUENCY:24.35kHz ±10Hz VOLTAGE VALUE:55Vp-p 14.4V TEST SET MAIN PCB Measuring Points 2. Measure the secondary toroidal coil, if the standard frequency value of 24.35 kHz ±...
  • Page 9: Wire Connection Diagram

    KS-AX6700 3 7 63 1515 0 Wire connection diagram MAIN PCB WHITE WHITE/BLACK GRAY GRAY/BLACK HIGH INPUT connector CCFL +12V BLACK CCFL PCB L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 10 KS-AX6700 http://www.xiaoyu163.com 3 7 63 1515 0 L 13942296513 u163 VICTOR COMPANY OF JAPAN, LIMITED MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK B.U. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan Printed in Japan (No. 49559) 200006(S) http://www.xiaoyu163.com...
  • Page 11: Block Diagram

    KS-AX6700 3 7 63 1515 0 Block diagram BOOST 0-12dB CROSSOVER INPUT 50-250Hz 12dB/OCT VARIABLE VARIABLE/INV.CIRCUIT(Gain1)/Amplifier POWER R-IN SW101A R-OUT U101 U102 U106 U103 U104 U105 VR101B VR103A VR102A VR102C Q142-Q146 Q148,Q149 Q152 L-OUT Q161-Q166 L-IN SW101B U101 U102...
  • Page 12: Q Q

    KS-AX6700 3 7 6 3 1 5 1 5 0 Standard schematic diagrams Main board and sub [1/2] /sub2 board circuit diagram 1 3 9 4 2 2 9 6 5 1 3 SUB2 PCB SUB1 PCB Indicates main signal...
  • Page 13 KS-AX6700 3 7 6 3 1 5 1 5 0 Main board [2/2] and CCFL board circuit diagram CCFL - Inverter board CCFL PCB 1 3 9 4 2 2 9 6 5 1 3 Parts are safety assurance parts.
  • Page 14 KS-AX6700 3 7 6 3 1 5 1 5 0 Printed circuit boards Main board Surface side view 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Caution If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC.
  • Page 15 KS-AX6700 3 7 6 3 1 5 1 5 0 Bottom side view 1 3 9 4 2 2 9 6 5 1 3 w w w u 1 6 3 Caution If electricity is connected during disassembly, it must be a no load current. If it is load current, be sure to attach a heat sink to the power-amp IC.
  • Page 16 KS-AX6700 3 7 63 1515 0 Sub1/sub2 P.C. board (Volume board) L 13942296513 CCFL P.C. board u163 http://www.xiaoyu163.com...
  • Page 17: Parts List

    KS-AX6700 3 7 63 1515 0 PARTS LIST KS-AX6700 * All printed circuit boards and its assemblies are not available as service parts. Areas suffix --------------- Nothem America E ------------ Continental Europe L 13942296513 - Contents - Exploded view of enclosure assembly and parts list...
  • Page 18 KS-AX6700 3 7 63 1515 0 Exploded view of enclosure assembly and parts list Block No. L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 19 KS-AX6700 3 7 63 1515 0 Parts list ( Enclosure assembly ) Block No. M1MM Item Parts number Parts name Q'ty Description Area MAHS070047-2 HEAT SINK MAFP076019-1 FRONT PANEL MARP706021-1 REAR PANEL MABC076014-1 BOTTOM COVER MATC041489-1 CONTROL PANEL MASO051491-1...
  • Page 20 KS-AX6700 3 7 63 1515 0 Eiectrical parts list Block No. 01 Electrical parts list ( MAIN PCB ) Item Remarks Parts number Parts name Area Item Parts number Parts name Remarks Area C 101 ELE4.7/50VSMS CAPACITOR ELECTROLYTIC SM...
  • Page 21 KS-AX6700 3 7 63 1515 0 Electrical parts list ( MAIN PCB ) Block No. 01 Item Remarks Item Remarks Parts number Parts name Area Parts number Parts name Area FH 01 WF-9604 FUSE HOLDER PCB TYPE Q 850...
  • Page 22 KS-AX6700 3 7 63 1515 0 Electrical parts list ( MAIN PCB ) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area R 247 CAR1/5WJ1K RESISTOR CARBON FILM 1/5 R 757...
  • Page 23 KS-AX6700 3 7 63 1515 0 Block No. 02 Electrical parts list ( SUB1/SUB2/CCFL PCB ) Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area C 107 CER470PF50V CAPACITOR CERAMIC DISK 50 R 216...
  • Page 24 KS-AX6700 3 7 63 1515 0 Packing and accessories Packing and accessories Block No. Block No. Block No. Block No. A1,A2,A7 L 13942296513 u163 http://www.xiaoyu163.com...
  • Page 25 WARRANTY CARD BT-51020-2 J=REGIST CARD BT-52004-1 WARRANTY CARD BT-54013-1 WARRANTY CARD CHD114-N CONNECTOR ASS'Y ACCES FUSE25A/32V AUTO FUSE MOCU014167-0 RUBBER RING MBSC02240-20 SCREW L 13942296513 BT-20071B JVC CENTER LIST KIT 1 KSAX6300-SCREW SCREW PARTS KIT A5, A6, P6 u163 http://www.xiaoyu163.com...