JVC SX-DW303 Service Manual Download

Page: 27 / 33

2-3

Standard schematic diagram

R1004

C1011

R1005

R1003

C1003

C1004

C1005

R1038

IC101

C1018

C1010

R1021

R1020

R1013

C1007

R1008

R1009

R1011

R1010

R1006

R1007

R1015

R1017

Q1002

Q1001

R1047

IC104

IC103

K1001

R1030

R1031

VR101

R1036

R1035

C1016

C1502

S1501

S1001

IC102

C1028

R1051

C1029

C1030

R1053

IC104

R1061

CN952

R1065

R1062

Q1006

CN103

Q1007

S9001

C9005

IC103

R1040

C1020

W9001

R9001

R1070

CN151

W1001

R1071

C1039

R9529

Q1003

R1068

C1038

D1003

D1002

C1035

C1014

C1037

R1032

R1019

Q1005

F9001

T9501

LF901

EP952

TH901

D9001

IC951

D9506

Q9504

D9503

D9504

R9508

W9001

D9502

D9501

LF901

LF902

R9510

D9509

C9515

W9002

D9510

C9507

C9508

PC951

D9511

R9517

C9513

Q9508

D9512

C9514

Q9509

Q9510

CN861

R9503

EP951

R8601

D8601

D8602

IC102

C1013

R1028

R1044

R1064

W9002

W9003

W9004

W9003

W9004

J1001

C1019

R1023

R1022

R1048

R1002

R1001

C1002

C1001

R1014

R1012

C1006

J1002

C1025

C1026

C1009

C1008

R1046

C1023

C1017

R1037

VR151

C1501

R1501

R1034

R1033

C1015

R1050

R1052

C1027

C1031

Q1004

D1001

R1049

R1054

R1057

R1056

C1032

R1059

R1060

R1055

C1034

C1033

R1016

R9002

R1067

CN101

CN501

R1039

C1012

C1021

C5001

R5002

R5001

R5006

R1041

CN951

CN502

R1066

C1036

D5907

D5908

R9528

R1069

CN901

C9001

C9002

C9003

C9004

C9504

D9505

R9506

R9505

C9505

R9527

R9504

C9503

R9502

R9501

K9501

C9502

C9501

D9507

C9506

C9509

C9510

C9511

C9512

R9516

R9518

R9519

R9520

R9521

R9522

R9523

R9526

R9524

R9525

C1022

R1025

56k

0.1

68k

56k

4.7/50

0.0022

12k

BA15218F

0.047

0.1

5.6K

1.5K

6.8k

0.022

150k

470/1W

2SC2412K

220k

BA15218F

NQR0129-003X

5.6k

20KB

15k

10k

10/35

0.0033

BA15218F

4.7/50

47p

4.7/50

4.7k

BA15218F

QGB2016K1-05

2SA1037AK

QGB2016J1-05

2SC2412K

QSW1001-001

0.01/275

BA15218F

68K

0.0022

100k/2W

1K/1/4W

QGA2001C1-08

QJB001-080701

1K/1/4W

0.68

75K/1/4W

2SC2412K

0.68

1SS133

0.018

0.056

0.0033

680K

4.7K

2SD2114K

( D) 3.15A/125V

QQS0172-001

QQR1353-001

QAD0141-6R0

RBV-606

STR-F6676

AG01Z

2SC2412K

AG01Z

MTZJ20B

22/1W

AG01Z

AW04

QQR1360-001 QQR1360-001

75K/1/4W

FML-G22S

0.0033/250

FML-G22S

0.0047/1K

PC123Y22

MTZJ15A

10k

0.01

2SA1514K

MTZJ15A

0.01

2SA1514K

2SC2412K

680

220

SPR325MVW

BA15218F

100/16

QNN0090-001

10/35

180K

33K

470k

0.001

56k

6.8k

0.022

QNB0159-002

150p

100/16

82K

1/50

0.068

39k

10KB

10/35

3.9k

10K

0.22

47k

2.2K

0.01

2SA1037AK

1SS133

2.2k

150K

10k

470/16

100k

220k

1.5k

10/16

15K

3.3M

QGB2016K1-08

QGB2016J1-08

22k

100/16

47/16

10K

15K

QGB2510J1-10

QGB2510K1-10

47k

0.15

MTZJ16B

75K/1/4W

QGA7901F2-02

0.22/275

0.1/275

0.001/250

100/35

MTZT20B

10k

2.2k

470P

2.2k

3.3k

470P

0.33/1W

QQR0779-001Z

( D) 680P/2K

470/400

SARS03

0.01/630

0.022/100

2200/50

13K

10K

10k

13K

10k

4.7k

47/16

47/1/4W

www.freeservicemanuals.info

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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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