Related Manuals for Infinity BU2
Summary of Contents for Infinity BU2
- Page 1 Powered Subwoofer Technical Manual Technical Manual INFINITY SYSTEMS INC. 250 Crossways Park Drive Woodbury, New York 11797 A Harman International Company Part No.: 1112-BU2 11/98...
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Page 2: Table Of Contents
Powered Subwoofer THIS MANUAL IS FOR THE BU2 REVISION WITHOUT AN EXTERNAL POWER SWITCH (120v Only - 230v version has a power switch) TABLE OF CONTENTS BU2 SPECIFICATIONS ..........1 BU2 PACKAGING EXPLODED VIEW ......10 TABLE OF CONTENTS..........1 INTEGRATED CIRCUIT DIAGRAMS ......11 BU2 CONTROLS AND THEIR FUNCTION ....2... -
Page 3: Bu2 Controls And Their Function
1. Auto Power - This Auto On/Off switch controls whether the BU2’s Automatic turn-on circuit is frequencies as generated by the music source active. When this switch is ON, the BU2 will turn (receiver, amplifier, etc.) itself on, indicated by a green LED, when it is 4. -
Page 4: Bu2 Test Procedure
Powered Subwoofer BU2 TEST PROCEDURE Turn on generator and adjust so that speaker level output TEST PROCEDURE is 2.0V, 50 Hz. Turn VOLUME control full clockwise. Green LED should light, immediate bass response should Equipment needed: be heard and felt from port tube opening. -
Page 5: Block Diagram
Powered Subwoofer BU2 BLOCK DIAGRAM (for 120v & 230v versions) -
Page 6: Bu2 Cabinet Exploded View
Powered Subwoofer BU2 CABINET EXPLODED VIEW... -
Page 7: Amplifier Exploded View
Powered Subwoofer AMPLIFIER EXPLODED VIEW Amplifier Exploded View... -
Page 8: Bu2 Mechanical Parts List
(THERMOSWITCH) (FRONT PLATE) BR1567 FIN-XTOR BAR TO-218 FOR BU2 HA1132 HARNESS AC CORD BU-1/BU-2 (FRONT PLATE) BR1568 FIN-XTOR BAR TO 220 FOR BU2 XX1343 KNOB BLACK W-POSITION INDICATOR SP1072 Sil Pad TO-220 0.750" x 0.500" (CUSTOM) (POT.) (TO-220 TRANSISTOR) HS1171... -
Page 9: Bu2 Electrical Parts Lists
Powered Subwoofer BU2 ELECTRICAL PARTS LISTS Ref.# Part # Description Ref.# Part # Description Capacitors Diodes C1, 2 CP1584 CAP A.E. 6800uF,20%,63V D1, 2, 3, 4 DI1005 Rectifier Diode 3A/200V 1N5401 C3, 4, 5, 11 CP1552 SMD Cap .1uF 20% 100v Z5U 1210... - Page 10 SW101, 102 SW1084 Auto On, Phase, slide switch DPDT R60, 102, 103, RS1702 SMD RES 100Kohm 5% 1/8W 1206 MI1211 Power Transformer 120v BU2 104, 105, 116, MI1216 Power Transformer 230v BU2 T2(XFORMER), TE1175 Trmnl Male Tab .032"x.250"PC M RS2449...
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Page 11: Bu2 Packaging Exploded View
Powered Subwoofer BU2 PACKAGING EXPLODED VIEW... -
Page 12: Integrated Circuit Diagrams
Powered Subwoofer INTEGRATED CIRCUIT DIAGRAMS... -
Page 13: Pcb (Top View, Component Side)
Powered Subwoofer PRINTED CIRCUIT BOARDS (TOP VIEW, component side) -
Page 14: Pcb (Bottom View, Solder Side)
Powered Subwoofer PRINTED CIRCUIT BOARDS (BOTTOM VIEW, solder side) -
Page 15: Preamp/Crossover Schematic 120V
Powered Subwoofer PREAMP/CROSSOVER SCHEMATIC 120V VERSION... -
Page 16: Amplifier Schematic 120V
Powered Subwoofer POWER SCHEMATIC 120V VERSION... -
Page 17: Preamp/Crossover Schematic 230V
Powered Subwoofer PREAMP/CROSSOVER SCHEMATIC 230V VERSION... -
Page 18: Amplifier Schematic 230V
Powered Subwoofer POWER SCHEMATIC 230V VERSION...
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