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JVC KSAX5700 - Amplifier Service Manual Download Page 8

1-8 (No.MA195)

SECTION 5

TROUBLESHOOTING

5.1

Troubleshooting guide

There are five ranks A, B, C, D and E of POWER FET  
(Q111, Q112, Q113, Q114, Q115, Q116, Q211, Q212, Q213, Q214, Q215 and Q216).
There are following four groups of IC. If you replace any IC, do other two ICs in the group 
at a time to be equal in rank. 

Q111, Q113, Q115 (MLE20)
Q112, Q114, Q116 (MJD20)
Q211, Q213, Q215 (MLE20)
Q212, Q214, Q216 (MJD20)

The rank is stamped here (A, B, C, D and E).

www. xiaoyu163. com

QQ 376315150

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TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for KSAX5700 - Amplifier

Page 1: ...CONTENTS 1 PRECAUTION 1 2 2 SPECIFIC SERVICE INSTRUCTIONS 1 2 3 DISASSEMBLY 1 3 4 ADJUSTMENT 1 6 5 TROUBLESHOOTING 1 8 Area suffix J Northern America E Southern Europe U Other Areas www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiao...

Page 2: ...o 50 000 Hz 0 3 dB Input Sensitivity Impedance 1 V 20 kΩ 0 3 V to 6 V variable Distortion Less than 0 004 at 1 kHz Power Requirement DC 14 4 V 11 V to 16 V allowance Grounding system Negative ground Dimensions W H D 400 mm 264 mm 63 mm 15 3 4 in 10 7 16 in 2 1 2 in Mass approx 5 7 kg 12 6 lbs Burrs formed during molding may be left over on some parts of the chassis Therefore pay attention to such ...

Page 3: ...rews B the two screws D attaching the main board 4 From the front side of the body remove the six screws E and the four screws F attaching the cover Fig 1 Fig 2 Fig 3 A A Cover B B B D D CN2 Main board E E F F E Rear cover www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 89249...

Page 4: ...rd 5 Remove the washer and nut from the bass boost A board 6 Remove the screw K attaching the LED A board Attention You can remove the LED A board only from the main board Fig 4 Fig 5 Fig 6 Fig 7 G G Main board Bass boost A board Cross over A board H CN591 CN504 CN505 Main board Bass boost A board Cross over A board LED A board Bracket J K Nat Washer Bracket Cross over A board Bass boost A board L...

Page 5: ...d the LED C board 2 Remove the two screws N attaching the LED B board and the LED C board Fig 8 Fig 9 LED B board LED C board M N N Bracket Bracket LED B board LED C board www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 6: ...tage at six point TP205 TP210 and adjust the point highest in voltage to 2 0 mV VR201 Measure the voltage at the six points again and confirm it meets the specification Specification for verification after adjustment MIN 0 2 mV MAX 2 5 mV EXAMPLE TP105 107 109 205 207 209 VALUE TP106 108 110 206 208 210 VALUE 105 or 205 TP 106 or 206 107 or 207 108 or 208 109 or 209 110 or 210 1 5 FIRST MEASURE mV...

Page 7: ...45 R146 R147 R148 R149 R150 R151 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230 R231 R232 R233 R234 R235 R239 R240 R241 R243 R244 R246 R247 R248 R249 R250 R251 TP111 C517 R501 R507 R509 R510 R511 R512 R513 R514 R601 R609 R610 R611 R612 R613 R614 R901 R902 T1 C73 TH1 TH2 TP1 TP2 TP3 TP4 TP5 TP6 TP...

Page 8: ...eplace any IC do other two ICs in the group at a time to be equal in rank Q111 Q113 Q115 MLE20 Q112 Q114 Q116 MJD20 Q211 Q213 Q215 MLE20 Q212 Q214 Q216 MJD20 The rank is stamped here A B C D and E www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 co...

Page 9: ...aoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 10: ...y 371 8543 Japan Victor Company of Japan Limited VPT Printed in Japan www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 11: ... Block diagram Standard schematic diagrams Printed circuit boards Lead free solder used in the board material Sn Ag Cu melting point 219 Centigrade CD ROM No SML200509 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 12: ...such burrs in the case of preforming repair of this system Safety precaution www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 13: ...IER D1921 D1922 1CH OUT 1CH FLAT 2CH OUT 2CH FLAT PROTECTLED POWERLED FAN POWER THERMAL VP CROSS 1CH OUT CROSS 2CH OUT BASS BOOST 1CH IN BASS BOOST 2CH IN 1CH POWER IN 2CH POWER IN BH BH BL BL 15V 15V MUTE MUTE 15V 15V SP OUT1 SP OUT1 SP OUT2 SP OUT2 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13...

Page 14: ...2SA1530A R X 6 8 6 8 2SC3928A R X 2SC3928A R X FKV550N 2SC3928A R X QQR1664 001 3300 25 FKV550N 10k QNG0059 001 1 1000p 3300 25 22k 16k QQR1277 001Z FKV550N FKV550N FKV550N 2SC5171 39k 0 1 2SC3 2SC3928A R X 2SA2054K Q X 2SA1530A R X 4 7k 6 8k 2SA1530A R X 0 1 QGA2001F1 03 QGA2001F1 02 0 01 QUB220 20DMHP E FMG 22R 1 5k 1 5k 4 7k 4 7k 1 3k 1SS355 X 1 5 25 3 3k 4 7k 12k 10k 3 3k 3 3k 0 01 10 0 1 2 2k...

Page 15: ... QGA2001F1 03 2SC3928A R X 2SA2054K Q X 4 7k 47K 47K 2SK368 Y X SPR 39MVWF 470 ICP S1 2 X 470 22k 2SC5734K QR X 0 01 1000p 100 100 100 100 10K 10K 0 01 1SR156 400 X 10 1SR156 400 X 5600 100 1000p 0 1 100 0 1 100 22 22 10k 10k 1000p 1000p 0 1 100 0 1 100 5600 5600 1k 10 50 10 50 10 50 10 50 0 1 0 1 15k 1 2k 1 2k UDZS15B X UDZS15B X 0 01 5600 NAD0035 471X 15k 27k 120k 0 01 220 6 3 27k 47 25 QAD0070 ...

Page 16: ...SC5171 2SC5171 47 16 10 16 2SK198 R X 10k 47k 100 100 10k 100 MLE20 47 16 47 16 33 2SA2054K G X 2SA2054K G X 2SA1930 2SA1930 2SC5171 2SC5171 47 16 10 16 2SK198 R X MLE20 33 MJD20 MLE20 MLE20 MJD20 MJD20 MJD20 100 100 100 1 2k 47 220 15k QVP0033 501Z 100 100 2 7k 2 7k 1 6k 2 7k 1 6k 1k 1 1k 1SS355 X 2SC1815 GL T 10 16 1000p 1SS355 X 100p 0 1 100p 56p 100 12k 820 100 16 1 2k 1SS355 X 0 1 0 1 QVP0033...

Page 17: ...400 X 1SR156 400 X 2SC3138 Y X QNB0278 001 MLE20 MJD20 MJD20 MJD20 MJD20 MJD20 1SS376 X 0 1 50 1SR156 400 X 1SR156 400 X 1SS376 X 1SS376 X QQLZ003 1R0 1SS376 X QQLZ003 1R0 100 100 100 1000p 0 1 50 0 01 0 01 1SS355 X 1SS376 X 2SC1815 GL T 1SS355 X 56k 0 1 1SS355 X 0 1 0 1 0 1 330 1SS355 X 1 5k 1 5k 0 01 1SS376 X 1SS355 X 0 047 0 047 1SS355 X 1SS355 X 0 1 50 0 1 50 4 7 1 5k 0 01 1 5k 2SC1815 GL T 10...

Page 18: ...C2836 X MC2836 X QGA2001C1 10 QGA2001C1 10 10 16 22k 22p 27k 22k NJM4580V X 10 16 10 16 4 7k 0 01 NJM4580V X 10k 10k 10k NJM4580V X 330 16 QNN0745 001 1k 1k 0 NJM4580V X 22k 10k 22k NJM4580V X 15p 15p 10k 0 QGA2001C1 03 WJS0046 004A E WJS0046 1000p 100k MC2838 X MC2836 X MC2838 X MC2836 X 0 1 0 1 27k 82k 100p 1000p 1000p 1000p 1000p 1000p 100k 27k 100p 82k 82k 82k 22p 22p 22k 22k 10 50 10 50 10k 1...

Page 19: ...M4580V X NJM4580V X 10K 10k 10k 10k 9 1k 9 1k 47p 0 056 0 056 QVQ0339 C54 QVQ0339 C54 22 16 QSW1151 001 NJM4580V X NJM4580V X 10k 10k 10k 10k 9 1k 9 1k 47p 0 056 0 056 QVQ0339 C54 QVQ0339 C54 22 16 QSW1151 001 0 1 0 1 WJS0070 001A E NJM4580V X QVQ0338 B24 NJM4580V X NJM4580V X 22 16 47p 0 1 0 1 18p 1k 100k 1k 1k 20k 5 6k 15k NJM4580V X QVQ0338 B24 NJM4580V X 22 16 47p 27p 1k 68k 1k 1k 20k 5 6k NJM...

Page 20: ...2 R223 R224 R225 R226 R227 R228 R229 R230 R231 R232 R233 R234 R235 R239 R240 R241 R243 R244 R246 R247 R248 R249 R250 R251 T1 TH2 TP4 TP9 TP103 TP203 VR201 B12 B13 C217 C218 C119 C219 TH3 Q135 Q136 Q137 Q138 D37 R176 R177 R172 R173 R174 R175 R178 R179 R180 R181 R182 R183 R184 R74 R73 C72 C132 F5 Q17 Q18 C25 C22 C23 EP101 C62 R26 W311 R162 R163 C131 R166 R164 Q133 R161 Q132 R169 C130 R160 Q130 Q131 ...

Page 21: ...05 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R139 R140 R141 R143 R144 R145 R146 R147 R148 R149 R150 R151 R233 TP111 C517 R501 R507 R509 R510 R511 R512 R513 R514 R601 R609 R610 R611 R612 R613 R614 R901 R902 T1 C73 TH1 TP1 TP2 TP3 TP5 TP6 TP7 TP8 TP20 TP23 TP24 TP26 TP102 TP202 TP501 TP601 VR1...

Page 22: ...34 R1635 R1636 R1637 R1638 R1639 R1640 S1531 VR531 W1531 C1561 C1562 C1563 C1564 C1565 C1566 C1567 C1661 C1662 C1663 C1664 C1667 IC561 IC562 IC563 R1561 R1562 R1563 R1564 R1565 R1566 R1567 R1568 R1569 R1570 R1571 R1572 R1661 R1662 R1663 R1664 R1665 R1666 R1667 R1668 R1669 R1670 R1671 R1672 VR561 VR562 W1561 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1...

Page 23: ...yu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 24: ...tari machi Maebashi city 371 8543 Japan Victor Company of Japan Limited www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 25: ...Block No 01 02 Packing materials and accessories parts list Block No M3 KS AX5700 3 2 3 4 3 8 Area suffix J Northern America E Southern Europe U Other Areas MA195 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 26: ...4 51 46 48 48 45 50 46 46 E D 28 28 A A C C C C B a b b c f f d d c a Front side D E e Back side 7 14 17 18 13 47 47 15 15 8 16 16 14 16 W311 The parts without symbol number are not service 47 47 42 42 49 49 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www x...

Page 27: ...MA TAP SCREW M3 x 6mm x2 27 LV22102 002A TOP COVER 28 LV40846 050A SPACER F x2 29 LV44496 001A SPACER 30 QYSDSG3010MA TAP SCREW M3 x 10mm x3 31 LV22118 001A TOP LED LENS 32 LV44458 003A SCREW x5 33 QYSDSG3010ZA TAP SCREW M3 x 10mm x2 34 LV22112 002A BOTTOM PLATE 35 QYSDSG3010MA TAP SCREW M3 x 10mm x4 36 QYSDSG3010MA TAP SCREW M3 x 10mm x2 37 LV22113 001A COVER L 38 LV22114 001A COVER R 39 QYYYSP40...

Page 28: ...OWER MOSFET Q216 MJD20 POWER MOSFET Q219 2SC3138 Y X TRANSISTOR Q220 2SA1255 Y X TRANSISTOR D1 FMG 22R SI DIODE D3 1SS355 X SI DIODE E U D4 1SS355 X SI DIODE E U D5 FMG 32S SI DIODE D6 FMG 32R SI DIODE D7 UDZS15B X Z DIODE D8 UDZS15B X Z DIODE D11 1SR156 400 X DIODE C M D16 UDZS7 5B X Z DIODE D17 UDZS15B X Z DIODE D18 1SS355 X SI DIODE D19 1SR156 400 X DIODE C M D22 1SS355 X SI DIODE D23 1SS355 X ...

Page 29: ...art Name Description Local C514 NDC31HJ 150X C CAPACITOR 15pF 50V J C516 QCZ0202 155Z C CAPACITOR 1 5uF 25V Z C528 QEKJ1HM 106Z E CAPACITOR 10uF 50V M C529 QEKJ1HM 106Z E CAPACITOR 10uF 50V M C601 NDC31HJ 102X C CAPACITOR 1000pF 50V J C602 QEKJ1CM 106Z E CAPACITOR 10uF 16V M C603 QEKJ1CM 106Z E CAPACITOR 10uF 16V M C609 NDC31HJ 220X C CAPACITOR 22pF 50V J C610 NDC31HJ 101X C CAPACITOR 100pF 50V J ...

Page 30: ...A63J 103X MG RESISTOR 10kΩ 1 16W J R182 NRSA63J 124X MG RESISTOR 120kΩ 1 16W J R183 NRSA63J 470X MG RESISTOR 47Ω 1 16W J R184 NRSA63J 470X MG RESISTOR 47Ω 1 16W J R185 NRSA63J 223X MG RESISTOR 22kΩ 1 16W J R186 NRSA63J 223X MG RESISTOR 22kΩ 1 16W J R201 NRSA63J 102X MG RESISTOR 1kΩ 1 16W J R202 NRSA63J 272X MG RESISTOR 2 7kΩ 1 16W J R203 NRSA63J 162X MG RESISTOR 1 6kΩ 1 16W J R204 NRSA63J 272X MG ...

Page 31: ...J1CM 226Z E CAPACITOR 22uF 16V M C1662 NDC31HJ 270X C CAPACITOR 27pF 50V J C1663 QFV61HJ 224Z MF CAPACITOR 0 22uF 50V J C1664 QFV61HJ 183Z MF CAPACITOR 0 018uF 50V J C1667 NDC31HJ 470X C CAPACITOR 47pF 50V J R1531 NRSA63J 103X MG RESISTOR 10kΩ 1 16W J R1532 NRSA63J 103X MG RESISTOR 10kΩ 1 16W J R1533 NRSA63J 103X MG RESISTOR 10kΩ 1 16W J R1534 NRSA63J 912X MG RESISTOR 9 1kΩ 1 16W J R1535 NRSA63J 1...

Page 32: ...ion E version U version KIT A9 A8 A10 A11 P1 P6 P7 P5 P3 A7 P2 A1A2 A5A6 A3 A4 P2 P4 A1A2A4 P2 A1A2 A13 A14 A12 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 33: ... M4 x 20mm x4 A 10 QYYYSP4008RA BOLT M4 x 8mm x2 A 11 LV43881 001A HEX SPANNER A 12 WARRANTY CARD BT 51018 4 J A 13 BT 51034 2 REGISTRATION CARD J A 14 WARRANTY CARD BT 52006 2 J KIT SRW AX5500E SCREW PARTS KIT A9 A10 A11 P 1 LV22140 002A CARTON P 2 QPA02403404P ENVELOPE 24cm x 34cm P 3 QPA01505005 POLY BAG 15cm x 50cm P 4 QPA00801205 POLY BAG 8cm x 12cm P 5 QPA03506005P POLY BAG 35cm x 60cm P 6 L...

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