Infinity Beta SW-12 Preliminary Service Manual
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Infinity Beta SW-12 Preliminary Service Manual

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See also: Owner's Manual
Beta
SW Series
™
SW-12 Subwoofer
PRELIMINARY SERVICE MANUAL
Infinity Systems, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797

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Summary of Contents for Infinity Beta SW-12

  • Page 1 Beta SW Series ™ SW-12 Subwoofer PRELIMINARY SERVICE MANUAL Infinity Systems, Inc. 250 Crossways Park Dr. Woodbury, New York 11797...

  • Page 2: Table Of Contents

    (425mm x 378mm x 505mm) Weight: 45 lb (20.5 kg) Infinity continually strives to update and improve existing products, as well as create new ones. The specifications and construction details in this and related Infinity publications are therefore subject to change without notice.

  • Page 3: Detailed Specifications

    SW-12 SW-12 300W Powered Sub/ Plate Amp LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes US 120vac/60Hz 108-132 Vrms Normal Operation EU 230vac/50-60Hz 207-264 Vrms Normal operation, MOMS required QA Test Parameter Specification Unit Limits Conditions Notes Amp Section Bridge type amplifier, None of the speaker...
  • Page 4 SW-12 QA Test Parameter Specification Unit Limits Conditions Notes Line In (L,R) & LFE functional Dual RCA jack, Lor R is used in LFE mode Spkr/Hi Level In functional Binding post connector L&R Signal Sensing (ATO) Auto-Turn-On (yes/no) functional Auto - on selection switch in Auto...

  • Page 5: Controls And Connections

    SW-12 ONTROLS AND ONNECTIONS Rear Panel ™ £ ¢ B A S S O P T I M I Z A T I O N S Y S T E M FREQUENCY LEVEL WIDTH ¡ Normal ∞ PHASE GREEN: ON...
  • Page 6 SW-12 ONNECTIONS If you have a Dolby* Digital or DTS ® receiver/processor If your receiver/amplifier does not have subwoofer with a low-frequency-effects (LFE) output: outputs for the left and right channels or an LFE output: SUBWOOFER OR LFE OUTPUT RECEIVER/AMPLIFIER...

  • Page 7: Operation

    SW-12 PERATION Power On Plug your subwoofer’s AC cord into a wall outlet. Do not use the Crossover Adjustments outlets on the back of the receiver. NOTE: This control will have no effect if the Normal/LFE Selector Initially set the Subwoofer Level (Volume) Control ª to the Switch §...

  • Page 8: Bass Optimization System

    “boomy” or “lumpy” bass can be truly aggravating over a It is a fact of audio that what we hear at low frequencies is period of time. Infinity’s Bass Optimization System can fix this. determined as much or more by the listening room than by the loudspeaker itself.

  • Page 9: Sw-12 External/Mechanical Parts List

    351511-001 WOOFER,12",SUB DCR = 3.4 ohms ±10% 1 EA 352050-003 ASY,GRILLE, BLK, FRNT, SW-12 (BLACK) 1 EA 352050-004 ASY,GRILLE, BLK, FRNT, SW-12 (BEECH) (CHERRY) 352179-001 PORT TUBE SW-12 1 EA Package Part Number Description 352050-003 ASY,GRILLE, BLK, FRNT, SW-12 (BLACK)

  • Page 10: Block Diagram

    SW-12...

  • Page 11: Electrical Parts List (120V)

    SW-12 SW-12 120V Electrical parts list Part number Description Reference Designator Resistors 021-100398-100 Metal Film Resistor 100R 1/8W F R339 021-100401-020 MOF Resistor 1K 1W J FK TYPE R173 021-100498-100 Metal Film Resistor 1K 1/8W F R363,381 021-100598-100 Metal Film Resistor...
  • Page 12 SW-12 Part number Description Reference Designator 024-150498-121 SMD Resistor 1K5 1/4W J 1206 R251 024-150598-120 SMD Resistor 15K 1/8W J 0805 R20,21 024-150598-121 SMD Resistor 15K 1/4W J 1206 R223 024-160598-100 SMD Resistor 16K 1/8W F 0805 R13,13B 024-200598-120 SMD Resistor...
  • Page 13 SW-12 Part number Description Reference Designator 026-500595-254 VR 50KA P/N:RK163111R405-EJ R216 026-500595-267 VR 50KBx4 PN:RD1631411001D-50KBx4 (EJ) R233 Capacitors 031-100184-100 SMD Capacitor 0u01/250V K 0805 X7R C104,119 031-100244-100 SMD Ceramic Capacitor 0u01/50V K 0805 X7R C27,28 031-100244-100 SMD Ceramic Capacitor 0u01/50V K 0805 X7R...
  • Page 14 SW-12 Part number Description Reference Designator Semiconductors 050-505200-001 PN:LT-2402-21 LED1 051-000600-100 NPN Transistor PN:MPSW06RLRA TO-92 (ON) 051-000600-100 NPN Transistor PN:MPSW06RLRA TO-92 (ON) 051-005600-100 PNP Transistor PN:MPSW56RLRA TO-92 (ON) 051-222200-100 NPN Transistor PN:MPS2222ARLRA TO-92 Q20,22 051-290700-100 PNP Transistor PN:MPS2907A RLRA TO-92...
  • Page 15 SW-12 Part number Description Reference Designator 072-010058-000 RCA Jack PN:0502000W1G (Red,White) J201 072-040007-000 Connector JS-1001-07 P3,4 072-040008-110 Connector JS-1001-08 072-040008-110 Connector JS-1001-08 072-040039-000 Terminal PC205 (t=0.8m/m) T205MA 072-040064-000 Terminal PC250(t=0.8),T250MA T2,TER6 072-040064-000 Terminal PC250(t=0.8),T250MA TER2 072-040096-000 Terminal (t=0.8mm) PC187(0.8) TER5,TER7...

  • Page 16: Electrical Parts List (230V)

    SW-12 SW-12 230V Electrical parts list Part number Description Reference Designator Resistors 216-0300201-000 MOF Resistor 1K 1W J FK TYPE R173 216-0300201-000 MOF Resistor 470R 5W J (NORMAL SIZE) 216-0300201-000 MOF Resistor 560R 5WS J 8x25 KINK 216-0300201-000 Resistor PN:SQM 0R05 5W J 25x13...

  • Page 17: R221

    SW-12 Part number Description Reference Designator 216-0300203-001 Metal Film Resistor 12K1 1/8W F R354,369 216-0300203-001 Metal Film Resistor 14K 1/8W F R380 216-0300203-001 Metal Film Resistor 1K5 1/8W F R341 216-0300203-001 Metal Film Resistor 162R 1/8W F R384 216-0300203-001 Metal Film Resistor...
  • Page 18 SW-12 Part number Description Reference Designator 216-0300201-000 SMD Capacitor 220pF/50V K 0805 NPO 216-0300201-000 SMD Capacitor 0u0047/50V K 0805 X7R C1G1 216-0300201-000 END Mylar Capacitor 1uF/250V K P:15 C37,39,30 216-0300201-000 NPE Capacitor 3u3/50V K10 (R)8x13 SBE C114,137 216-0300201-000 NPE Capacitor...
  • Page 19 SMD FERRITE BEAD PN:321611 600R/100MHz 1206 FB1,FB2 216-0300202-000 HEADER Right Angle PN:211-107-000-400 7PIN PIN2 216-0300202-000 HEADER Right Angle PN:211-111-000-400 11PIN PIN1 316-0300201-001 SW-12 PRE PCB ASS'Y 230V ASS'Y 216-0300203-001 ;FR-4 168.5x114x1.6mm;(KAPPA/SW12) 216-0300203-001 RCA JACK 2P PN:0502000W1G (Red,White) J201 216-0300203-001 SWA101 JS-1001-07...

  • Page 20: Vr302

    Q13,17 316-0300201-001 Washer 16x21mm t=2mm for Q11,15 316-0300201-001 (KAPPA1000) 12.83x8.33x3.93"ABS 94V0 316-0300201-001 Bracket for Power Transistor P/N:TRK-2 for Q11,13,15,17,TH1 316-0300201-001 PANEL (SW-12 230V) 12.83x8.33" t=.984" SPCC 316-0300201-001 UL PVC 300V 105 φ1mm 500 ) 316-0300201-001 PMS-H;M3x10mm TRx5 316-0300201-001 M3x8mm...

  • Page 21: Pcb Drawings

    SW-12...
  • Page 22 SW-12...
  • Page 23 SW-12...
  • Page 24 SW-12...
  • Page 25 SW-12...
  • Page 26 SW-12...
  • Page 27 SW-12...
  • Page 28 SW-12...
  • Page 29 SW-12...

  • Page 30: Semiconductor Pinouts

    SW-12...

  • Page 31: Schematics (120V)

    SW-12 85 ℃ 85 ℃ New DESIGN...
  • Page 32 SW-12 New DESIGN...
  • Page 33 SW-12 New DESIGN...
  • Page 34 SW-12 New DESIGN...

  • Page 35: Schematics (230V)

    SW-12 105 ℃ 105 ℃ New DESIGN CHANGE:R14,F1,C1,C4...
  • Page 36 SW-12 New DESIGN CHANGE:R14,F1,C1,C4...
  • Page 37 SW-12 New DESIGN CHANGE:R14,F1,C1,C4...
  • Page 38 SW-12 New DESIGN CHANGE:R14,F1,C1,C4...

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