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JVC SX-DW303, Service Manual

The JVC SX-DW303 Instructions Manual is available for free download on our website. This comprehensive manual provides detailed information on operating and setting up the JVC SX-DW303 product. Get the most out of your device by downloading the manual from manualshive.com today.

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2-5

(Terminal board)

(Volume board)

Printed circuit boards

Main board (1/3)

 C5001 

 C5002 

 C5003 

 C5004 

 C5005 

 C5006 

 C5007 

 C5008 

 C5009 

 C5010 

 C5011 

 C5012 

 C5013 

 C5014 

 C5015 

 CN501 

 CN504 

 D5001 

 D5002 

 D5003 

 D5004 

 IC501 

 IC502 

 IC503 

 IC504 

 Q5001 

 Q5002 

 Q5003 

 Q5004 

 R5001 

 R5002 

 R5003 

 R5004 

 R5005 

 R5006 

 R5007 

 R5008 

 R5009 

 R5010 

 R5011 

 R5012 

 R5013 

 R5014 

 R5015 

 R5016 

 R5017 

 R5018 

 R5019 

 R5020 

 R5021 

 R5022 

 R5023 

 R5024 

 R5025 

 R5026 

 R5027 

 R5028 

 R5029 

 R5030 

 R5031 

 R5032 

 R5033 

 R5034 

 R5035 

 R5036 

 R5037 

 R5038 

 R5039 

 TP501 

 VR501 

 VR502 

 B5101 

 C5913 

 C5914 

 C5915 

 C5916 

 D5905 

 D5906 

 IC591 

 IC592 

 C1001 

 C1002 

 C1003 

 C1004 

 C1005 

 C1006 

 C1007 

 C1008 

 C1009 

 C1010 

 C1011 

 C1012 

 C1013 

 C1014 

 C1015 

 C1016 

 C1017 

 C1018 

 C1019 

 C1020 

 C1021 

 C1022 

 C1023 

 C1024 

 C1025 

 C1026 

 C1027 

 C1028 

 C1029 

 C1030 

 C1031 

 C1032 

 C1033 

 C1034 

 C1035 

 C1036 

 D1003 

 CN103 

 D1001 

 D1002 

 IC101 

 IC102 

 IC103 

 IC104 

 J1001 

 J1002 

 Q1001 

 Q1002 

 Q1003 

 Q1004 

 Q1006 

 Q1007 

 R1001 

 R1002 

 R1003 

 R1004 

 R1005 

 R1006 

 R1007 

 R1008 

 R1009 

 R1010 

 R1011 

 R1012 

 R1013 

 R1014 

 R1015 

 R1016 

 R1017 

 R1019 

 R1020 

 R1021 

 R1022 

 R1023 

 R1025 

 R1028 

 R1030 

 R1031 

 R1032 

 R1033 

 R1034 

 R1035 

 R1036 

 R1037 

 R1038 

 R1039 

 R1040 

 R1041 

 R1044 

 R1046 

 R1047 

 R1048 

 R1049 

 R1050 

 R1051 

 R1052 

 R1053 

 R1054 

 R1055 

 R1056 

 R1057 

 R1059 

 R1060 

 R1061 

 R1062 

 R1064 

 R1066 

 R1067 

 S1001 

 VR101 

 W1001 

 CN101 

 Q1005 

 R1065 

 R1068 

 C1037 

 R1069 

 K1001 

 R1071 

 C1039 

 R1070 

 C1038 

www.freeservicemanuals.info

Absolutly Free manuals

Summary of Contents for SX-DW303

Page 1: ...ED No MB082 2003 11 POWERED SUBWOOFER MB082 2003 11 SX DW303 TABLE OF CONTENTS 1 PRECAUTION 1 3 2 SPECIFIC SERVICE INSTRUCTIONS 1 5 3 DISASSEMBLY 1 6 4 ADJUSTMENT 1 9 5 TROUBLESHOOTING 1 10 J U S A Area Suffix www freeservicemanuals info Absolutly Free manuals ...

Page 2: ...200 Hz Input impedance 50 kΩ LOW LEVEL 470 Ω HIGH LEVEL Input terminals INPUT 1 LOW LEVEL INPUT 2 HIGH LEVEL Power requirements AC 120 V 60 Hz Output power of built in amp 100 W 45 Hz 4 Ω 10 THD Power consumption 25 W Dimensions W H D 217 mm 393 mm 376 mm 8 9 16 in 15 1 2 in 14 13 16 in Mass 9 2 kg 20 3 lbs www freeservicemanuals info Absolutly Free manuals ...

Page 3: ... be sure the product is safe to operate without danger of electrical shock Do not use a line isolation transformer during this check Plug the AC line cord directly into the AC outlet Using a Leakage Current Tester measure the leakage current from each exposed metal parts of the cabinet particular ly any exposed metal part having a return path to the chassis to a known good earth ground Any leakage...

Page 4: ...n the safety Caution For continued protection against risk of fire replace only with same type 3A 250V for F9001 This symbol specifies type of fast operating fuse Power switch board Forward side F9001 www freeservicemanuals info Absolutly Free manuals ...

Page 5: ... No MB082 1 5 SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS www freeservicemanuals info Absolutly Free manuals ...

Page 6: ... Fig 2 4 Disconnect the speaker wire from the speaker terminal See Fig 2 Fig 1 Fig 2 3 2 Removing the back panel See Fig 3 Prior to performing the following procedures remove the am plifier assembly 1 Pull out the volume knob and frequency knob 2 Remove the seven screws B attaching the back panel Fig 3 Amplifier assembly Service cabinet A A A Wire connecter Speaker terminal Amplifier assembly Serv...

Page 7: ...NOB See Fig 5 3 Disconnect the wires from the connecters CN102 and CN503 See Fig 5 4 Disconnect the amplifier board assembly from the connec tors CN951 and CN952 on the regulator board See Fig 6 5 Take out the amplifier board assembly from the amplifier assembly 3 5 Removing the regulator board See Fig 6 Prior to performing the following procedures remove the back panel power cord and amplifier bo...

Page 8: ...side Fig 7 Fig 8 3 7 Removing the speaker unit See Fig 9 Prior to performing the following procedures remove the stand 1 Remove the four screws J attaching the speaker unit 2 Take out the speaker unit from the service cabinet toward this side Fig 9 Stand Foot spacer Foot spacers H H H Stand H H Speaker unit Service cabinet J J www freeservicemanuals info Absolutly Free manuals ...

Page 9: ... No MB082 1 9 SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT www freeservicemanuals info Absolutly Free manuals ...

Page 10: ...1 10 No MB082 SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING www freeservicemanuals info Absolutly Free manuals ...

Page 11: ... No MB082 1 11 www freeservicemanuals info Absolutly Free manuals ...

Page 12: ... AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan VICTOR COMPANY OF JAPAN LIMITED WPC Printed in Japan www freeservicemanuals info Absolutly Free manuals ...

Page 13: ...service parts Contents Exploded view of general assembly and parts list Block No M1 Electrical parts list Block No 01 Packing materials and accessories parts list Block No M3 SX DW303 3 2 3 4 3 8 Area suffix J Northern America MB082 www freeservicemanuals info Absolutly Free manuals ...

Page 14: ...board Terminal board Power switch board Acessories K K A B 1 2 3 3 17 40 40 51 47 52 55 57 53 57 62 61 61 62 59 60 61 61 62 54 58 56 57 14 15 50 16 6 5 3 63 45 7 44 43 43 41 28 42 20 18 32 19 34 46 9 29 30 39 23 35 36 38 33 37 31 24 25 21 12 26 26 12 26 26 22 22 27 8 11 4 10 66 64 65 48 30 13 49 www freeservicemanuals info Absolutly Free manuals ...

Page 15: ...ACER 32 LV21342 014A BACK PANEL 33 LV30225 0H4A SPACER 34 LV30225 0H5A SPACER 35 QYSBSGY3008E SPECIAL SCREW 3mm x 8mm 36 QYSBSGY3008E SPECIAL SCREW 3mm x 8mm x2 37 QYSBSGY3008E SPECIAL SCREW 3mm x 8mm 38 QYSBSGY3008E SPECIAL SCREW 3mm x 8mm 39 QYSBSGY3008E SPECIAL SCREW 3mm x 8mm x2 40 QYSDSA4020M TAP SCREW M4 x 20mm x11 41 LV33803 001A HEAT SINK 42 QYSBSG3012Z TAP SCREW M3 x 12mm 43 LV30225 0G7A ...

Page 16: ...IODE D5009 MTZJ18B T2 Z DIODE D5010 MTZJ18B T2 Z DIODE D5011 M1FL20U X FR DIODE D5012 M1FL20U X FR DIODE D5013 1SS355 X SI DIODE D5703 1SS133 T2 DIODE D5704 1SS355 X SI DIODE D5705 1SS355 X SI DIODE D5706 1SS355 X SI DIODE D5707 1SS355 X SI DIODE D5708 MA3200 H X Z DIODE D5709 MA3200 H X Z DIODE D5710 1SS355 X SI DIODE D5711 1SS355 X SI DIODE D5712 MA3300 L X Z DIODE D5713 MA3300 L X Z DIODE D5714...

Page 17: ...502 QCZ0366 102 C CAPACITOR 1000pF Symbol No Part No Part Name Description Local C9503 NCB31HK 471X C CAPACITOR 470pF 50V K C9504 QETN1VM 107Z E CAPACITOR 100uF 35V M C9505 NCB31HK 471X C CAPACITOR 470pF 50V K C9506 QFKB2JK 103 MM CAPACITOR 0 01uF 630V K C9507 QCZ0213 472 C CAPACITOR 4700pF 1kV K C9508 QCZ0213 472 C CAPACITOR 4700pF 1kV K C9509 QFG32AJ 223Z PP CAPACITOR 0 022uF 100V J C9510 QFG32A...

Page 18: ...25 NRSA63J 683X MG RESISTOR 68kΩ 1 16W J R5726 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R5727 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R5728 NRSA63J 333X MG RESISTOR 33kΩ 1 16W J Symbol No Part No Part Name Description Local R5729 NRSA63J 683X MG RESISTOR 68kΩ 1 16W J R5730 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R5731 NRSA63J 103X MG RESISTOR 10kΩ 1 16W J R5732 NRSA63J 104X MG RESISTOR 100kΩ 1 16W J R...

Page 19: ...K5001 QQR1183 001Z FERRITE BEADS K5002 QQR1183 001Z FERRITE BEADS K9501 QQR0779 001Z COIL LF901 QQR1360 001 LINE FILTER LF902 QQR1360 001 LINE FILTER RY502 QSK0148 001 RELAY S1001 QSW1002 001 PUSH SW S1501 QSW0999 001 PUSH SW S9001 QSW1001 001 POWER SW TH501 QAD0015 153Z THERMISTOR 15kΩ TH591 NAD0032 330X P THERMISTOR 33Ω TH592 NAD0032 330X P THERMISTOR 33Ω TH593 NAD0032 330X P THERMISTOR 33Ω TH59...

Page 20: ...3 8 Packing materials and accessories parts list P5 P1 P3 P8 P4 P7 P6 P2 A5 A6 Block No M M M 3 A1 A2 A3 A4 www freeservicemanuals info Absolutly Free manuals ...

Page 21: ...9 001 PIN CABLE A 5 LV43196 003B CAUTION SHEET A 6 SXDW303K SPBOX SPEAKER BOX P 1 QPA02503503P POLY BAG 25cm x 35cm P 2 LV31492 047A CARTON P 3 LV33917 001A CARTON SHEET P 4 QPH03004510 POLY SHEET 30cm x 45cm P 5 QPA07007505P POLY BAG 70cm x 75cm P 6 LV21345 002A BOTTOM CUSHION P 7 LV21345 002A BOTTOM CUSHION P 8 LV21345 001A TOP CUSHION www freeservicemanuals info Absolutly Free manuals ...

Page 22: ...IGHT 2003 VICTOR COMPANY OF JAPAN LTD SX DW303 Contents Block diagram Standard schematic diagram Printed circuit boards 2 1 2 3 2 5 to 7 CD ROM No SML200311 POWERED SUBWOOFER Area suffix J U S A www freeservicemanuals info Absolutly Free manuals ...

Page 23: ...e 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 This regulation does not correspond to J and C version www freeservicemanuals info Absolutly Free manuals ...

Page 24: ... M E M O www freeservicemanuals info Absolutly Free manuals ...

Page 25: ... AUTO POWER ON LED CONT IN PUT L H AMP H P FILTER L P FILTER PHASE A H B IN PUT L H AMP IC103 2 2 IC102 AMP VARIABLE FIX CUT OFF FILTER SW FREQUENCY VOLUME IC103 1 2 VOLUME PHASE SW NORMAL REVERSE ON CANCEL Switch board J1001 J1002 Terminal board CN151 W1001 www freeservicemanuals info Absolutly Free manuals ...

Page 26: ...VR502 Carrier Freq POWER SUPPLY W9001 to 4 VR501 CN504 Amplifier board SPEAKER OUT MUTE Q5902 Q5903 Q5904 REGULATOR RY502 CN503 CN505 IC571 INV Q5706 IC505 INV IC506 DRV Q5006 Q5007 Q5905 CN102 CN861 RED GREEN Indicator B LED CN502 Volume board Power switch board Regulator board IN www freeservicemanuals info Absolutly Free manuals ...

Page 27: ...8 R9519 R9520 R9521 R9522 R9523 R9526 R9524 R9525 C1022 R1025 56k 0 1 68k 56k 4 7 50 4 7 50 0 0022 12k BA15218F BA15218F 0 047 0 1 5 6K 1 5K 6 8k 0 022 150k 150k 150k 150k 470 1W 470 1W 47 47 2SC2412K 2SC2412K 220k BA15218F BA15218F NQR0129 003X 5 6k 5 6k 20KB 15k 10k 10 35 0 0033 BA15218F 4 7 50 1M 47p 4 7 50 4 7k BA15218F 1M QGB2016K1 05 1K 47 2SA1037AK QGB2016J1 05 2SC2412K QSW1001 001 0 01 275...

Page 28: ...R5061 R5062 C5027 C5028 R5063 2SA1037AK 2SC2412K 100 2SC2412K QSK0148 001 2SK303 3 4 X BA15218F NJM311M XE 2SA1037AK 2SC2412K 10k TC74HC00AF W TC74HC14AF X 4 7k 4 7k 10k 10k 4 7 4 7 13K 10k 5K 10k 2SA1037AK 2 2 1k 47p 10k 1SS133 20K 2 2 MTZJ6 8B 10 25 10 16 10 25 10 16 MTZJ6 8B 2SA1514K BU4584BF X 1SS133 1SS133 8 2K 8 2K 560 IR2113S X KRC104S X 10k 2 2 1 2W 22 1 4W 22 1 4W MTZJ18B MTZJ18B IRFI540N...

Page 29: ...03 C1004 C1005 C1006 C1007 C1008 C1009 C1010 C1011 C1012 C1013 C1014 C1015 C1016 C1017 C1018 C1019 C1020 C1021 C1022 C1023 C1024 C1025 C1026 C1027 C1028 C1029 C1030 C1031 C1032 C1033 C1034 C1035 C1036 D1003 CN103 D1001 D1002 IC101 IC102 IC103 IC104 J1001 J1002 Q1001 Q1002 Q1003 Q1004 Q1006 Q1007 R1001 R1002 R1003 R1004 R1005 R1006 R1007 R1008 R1009 R1010 R1011 R1012 R1013 R1014 R1015 R1016 R1017 R...

Page 30: ...042 R5043 R5044 R5045 R5046 R5048 R5049 R5050 R5051 R5052 R5053 R5054 R5055 R5056 R5057 R5058 R5059 R5701 R5702 R5713 R5714 R5715 R5716 R5717 R5718 R5719 R5720 R5721 R5722 R5723 R5724 R5725 R5726 R5727 R5728 R5729 R5730 R5731 R5732 R5733 R5734 R5735 R5736 R5737 R5738 R5739 R5740 R5741 R5742 R5901 R5902 R5910 C5907 C5908 R5911 RY502 R5912 D5909 D5712 D5713 D5708 D5709 B8102 B8105 B8103 B8104 B8111 ...

Page 31: ... D9511 D9512 IC951 K9501 PC951 Q9504 Q9508 Q9509 Q9510 R9501 R9502 R9503 R9504 R9505 R9506 R9508 R9510 R9516 R9517 R9518 R9519 R9520 R9521 R9522 R9523 R9524 R9525 R9526 R9527 R9528 R9529 W9001 W9002 W9003 W9004 HS953 HS952 EP951 EP952 HS954 T9501 C9001 C9002 C9003 C9004 C9005 CN901 D9001 LF901 R9001 S9001 TH901 W9001 W9002 W9003 W9004 Z9001 Z9002 R9002 LF902 www freeservicemanuals info Absolutly F...

Page 32: ... M E M O www freeservicemanuals info Absolutly Free manuals ...

Page 33: ...PANY OF JAPAN LIMITED No MB082SCH Printed in Japan WPC AV MULTIMEDIA COMPANY AUDIO VIDEO SYSTEMS CATEGORY 10 1 1chome Ohwatari machi Maebashi city 371 8543 Japan www freeservicemanuals info Absolutly Free manuals ...

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