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JVC SP-PW100 Service Manual

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SERVICE MANUAL
POWERED SUBWOOFER
SP-PW100
ST AN
SP -P
D BY
W 10 0
/O N
PO W
ER ED
Contents
Safety precautions
Disassembly method
Description of major ICs
COPYRIGHT
SU BW
OO FE
R
2002 VICTOR COMPANY OF JAPAN, LTD.
SP-PW100
Area suffix
UP ---------------- Korea
1- 2
1- 3
1- 7~8
No.21106
May. 2002

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  • Page 1 SP-PW100 SERVICE MANUAL POWERED SUBWOOFER SP-PW100 Area suffix UP ---------------- Korea ST AN SP -P D BY W 10 0 /O N PO W ER ED SU BW OO FE Contents Safety precautions 1- 2 Disassembly method 1- 3 Description of major ICs 1- 7~8 No.21106...
  • Page 2 SP-PW100 1. This design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

  • Page 3: Disassembly Method

    SP-PW100 Disassembly method <Main body> Removing the front net (See Fig.1, 2) Front net Remove the front net from the four holders that are fixing the front net. When it is hard to remove the front net, insert a Note: minus driver, etc.

  • Page 4: Removing The Front Panel

    SP-PW100 Removing the front panel (See Fig.5) Place the bottom of the front panel upward. While inserting a minus driver, etc. in the two grooves, remove the four holders that are fixing the front panel. Front panel Note: Exercise care not to damage the main body and the front net when inserting the minus driver.

  • Page 5: Removing The Rear Panel

    SP-PW100 Crossover frequency knob Volume knob <Amplifier box> Removing the rear panel (See Fig.9) Amplifier box Pull out the volume knob and the crossover frequency knob. Remove the three screws D attaching the input jack and speaker terminal. Remove the two screws D' attaching the voltage selector, and then remove the rear panel.

  • Page 6: Removing The Transformer

    SP-PW100 Removing the amplifier board (See Fig.13) Prior to performing the following procedure, remove the rear panel, the terminal board. Remove the connectors CN881 and CN891 Amplifier board Remove the six screws I attaching the amplifier board. CN891 CN881 Fig.13 Removing the transformer (See Fig.14)

  • Page 7: Description Of Major Ics

    SP-PW100 Description of major ICs STK411-290E(IC821) : Front power amp.
  • Page 8 SP-PW100 NJM4580D(IC811, IC812, IC813) : Dual ope. amp. 1. Pin layout A OUT A -IN B OUT A +IN B -IN B +IN (TOP VIEW) 2. Block diagram INPUT OUTPUT TC74HCU04AP(IC851) : 2Ch NOR gate 2. True table 1. Pin layout & block diagram...

  • Page 9: Block Diagram

    SP-PW100 Block diagram...
  • Page 10 SP-PW100 Standard schematic diagram VR811 10KB IC821 STK411-290E C8201 100P/50 FW801 D8201 D8202 R8223 R8224 R8203 MTZJ8.2C-T2 MTZJ8.2C-T2 C8213 C8219 C8218 C8217 1/50 S8101 10/50 10/50 8.2P/50 R8202 QSW0834-001 C8204 C8252 10/50 R8252 C8101 R8103 R8105 10/50 D8205 D8206 C8203...
  • Page 11 SP-PW100 SP-PW100 Printed circuit boards Terminal board D8501 CN811 R8501 R8502 R8506 B8009 C8509 IC851 C8504 Volume board B8006 R8512 R8107 R8108 R8109 B8601 R8113 R8514 C8111 C8121 C8505 D8509 C8506 R8117 R8115 D8508 R8103 R8515 IC811 R8522 D8507 R8518...

  • Page 12: Exploded View Of General Assembly And Parts List

    SP-PW100 Exploded view of general assembly and parts list Block No.
  • Page 13 SP-PW100 Parts list (General assembly) Block No. M1MM Item Description Parts number Parts name Q'ty Area AA000021-02 WOOD CABINET 99-160-104-11 SARAN BOARD TAPPING SCREW 7004690801 66-000-074-11 CIE.BORAD ASSY 53-000-145-01 PANEL 70-059-416-02 SCREW CR160058-01 CONE SPEAKER 29-100-079-01 RING SDSA4020M SCREW 6000167301...

  • Page 14: Amp. Assembly And Parts List

    SP-PW100 Amp. assembly and parts list Block No.
  • Page 15 SP-PW100 Parts list (Amp. assembly) Block No. M2MM Item Description Parts number Parts name Q'ty Area LV10253-002A COVER LV20997-010A BACK PANEL VOLUME BRACKET LV42236-001A LV41147-001A AC BRACKET LV31303-002A HEAT SINK LV41211-001A HEAT SINK LV41148-002A CORD COVER LV30225-025A SPACER LV30225-026A SPACER...
  • Page 16 SP-PW100 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area CN811 QGB2016J1-15 CONNECTOR TO WOOF.PWB C8704 QTE1E28-107Z E CAPACITOR CN821 QGB2016K1-15 CONNECTOR TO CONT.PWB C8801 QETN1HM-105Z E CAPACITOR 1.0MF 20% 50V...
  • Page 17 SP-PW100 Electrical parts list (Main board) Block No. 01 Item Parts number Parts name Remarks Area Item Parts number Parts name Remarks Area RY881 QSK0109-001 RELAY R8503 QRE141J-104Y C RESISTOR 100K 5% 1/4W R8101 QRE141J-474Y C RESISTOR 470K 5% 1/4W...

  • Page 18: Packing Materials And Accessories Parts List

    SP-PW100 Packing materials and accessories parts list Block No. Block No. A1,A2 A3~A5...
  • Page 19 SP-PW100 Parts list (Packing) Block No. M3MM Item Description Parts number Parts name Q'ty Area QPA02503503P POLY BAG 2 FOR INST LV31492-013A CARTON BOTTOM CUSHION 80-000-449-11 80-000-449-01 TOP CUSHION 8500037721 POLY BAG 85-000-353-21 MIRROR MAT Parts list (Accessories) Block No. M5MM...

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