Infinity BU-2 Technical Manual Download Page 10

Ref.#

Part #

Description

Qty

R9, 10, 35, 44,

RS1701

SMD RES 10Kohm 5% 1/8W 1206

13

46, 52, 59, 67,
113, 121, 123,
127, 130

R11, 12, 15, 17

RS1717

SMD RES 100 ohm 5% 1/8W 1206

4

R13, 14, 40, 57

RS1722

SMD RES 470 ohm 5% 1/8W 1206

4

R16, 23, 26, 50, 61 RS1706

SMD RES 47Kohm 5% 1/8W 1206

5

R18, 24, 119

RS1703

SMD RES 2.2Kohm 5% 1/8W 1206

3

R19, 22

RS1725

SMD RES 15Kohm 5% 1/8W 1206

2

R25, 125

RS1883

SMD RES 1.5Kohm 5% 1/8W 1206

2

R27, 28, 29,

RS1898

SMD RES 10Kohm 1% 1/8W 1206

5

49, 56

R30

RS2160

SMD RES 11Kohm 1% 1/8W 1206

1

R31

RS2468

SMD RES 1Mohm 1% 1/8W 1206

1

R32, 54, 55

RS2448

SMD RES 47.5Kohms 1% 1/8W 1206

3

R33

RS1877

SMD RES 4.3Kohm 5% 1/8W 1206

1

R36, 37

RS2180

RES M/O F/P 470 ohm 5% 1W T/R

2

R38, 39, 53, 58

RS1705

SMD RES 4.7Kohm 5% 1/8W 1206

4

R41, 42

RS1715

SMD RES 5.6Kohm 5% 1/8W 1206

2

R45, 126, 128,

RS1704

SMD RES 22Kohm 5% 1/8W 1206

4

129

R47

RS1700

SMD RES 1Kohm 5% 1/8W 1206

1

R48

RS1782

SMD RES 1.8Kohm 5% 1/8W 1206

1

R51

RS2422

RES M/O F/P 100 ohm 5% 1W T/R

1

R60, 102, 103,

RS1702

SMD RES 100Kohm 5% 1/8W 1206

7

104, 105, 116,
122

R62

RS2449

SMD RES 182Kohms 1% 1/8W 1206

1

R63

RS1943

SMD RES 22.1Kohm 1% 1/8W 1206

1

R64

RS1957

SMD RES 4.99Kohm 1% 1/8W 1206

1

R65

RS2446

SMD RES 1.18Kohms 1% 1/8W 1206

1

R66

RS2450

SMD RES 2.21Kohm 1% 1/8W 1206

1

R68

RS1958

SMD RES 18.7Kohms 1% 1/8W 1206

1

R69

RS2447

SMD RES 3.65Kohms 1% 1/8W 1206

1

R101, 108

RS1998

RES C/F 4.7ohm 5% 1/4W T/R

1

R109, 110

RS1790

SMD RES 2.7Kohm 5% 1/8W 1206

2

R112, 115

RS1713

SMD RES 56Kohm 5% 1/8W 1206

2

R114

RS1793

SMD RES 470Kohm 5% 1/8W 1206

1

R117

RS1968

SMD RES 2.2Mohm 5% 1/8W 1206

1

R118

RS1710

SMD RES 3.3Kohm 5% 1/8W 1206

1

R120

RS1892

SMD RES 10Mohm 5% 1/8W 1206

1

Ref.#

Part #

Description

Qty

R124

RS1767

SMD RES 1Mohm 5% 1/8W 1206

1

R131

RS1992

SMD RES 390Kohm 5% 1/8W 1206

1

R132, 133, 134,

RS1724

SMD RES 6.8Kohm 5% 1/8W 1206

4

135

R136, 137

RS2479

SMD RES 14Kohm 1% 1/8W 1206 T/R

1

Miscellaneous

AC1, 2, CT,

TE1185

Terminal male type

4

TI(AC-H1)

quick-fit 0.187 TAB

CONN101

HA1186

HARNESS 7-POSITION 0.1"

1

CENTER-CENTER L=4"

CONN102

CO1334

JACK SPEAKER OCTAL PC MOUNT

1

RIGHT ANGLE

F1

FS1067

Fuse Slo-Blo 2A/250v 5x20 120v GMC

1

Fuse Slo-Blo 1.6A/250v 5x20 230v GMC 1

F1 (CLIP)

XX1297

Fuse Clip 5x20 PC Mount

2

K1

RE1019

Relay,12A,48VDC

1

L1

MI1100

Inductor Air Core 0.38uH

1

LED101

LE1032

Led Bicolor Red/Green 5mm

1

TH1

TH1006

NTC THERMISTOR 10Kohm @ 25DegC

1

RCA101

CO1407

CONNECTOR RCA DUAL VERT.

1

PC MOUNT WHT/RED R/A GOLD

SPKOUT

CO1343

Strght Sq Hdr 0.156"Center

1

SW1

507-8046 AC Power Switch 230v version only

1

SW101, 102

SW1084

Auto On, Phase, slide switch DPDT

2

T1

MI1211

Power Transformer 120v BU2

1

MI1216

Power Transformer 230v BU2

1

T2(XFORMER),

TE1175

Trmnl Male Tab .032"x.250"PC M

2

T3(AC LO)

T4

HA1175

HARNESS, POCKET TERMINAL

1

TO FASTON.250, 5",#18 GRE

TP1, 2

TE1213

TERMINAL TURRET

2

VR101

RS2426

POT 20K DUAL 16mm B-TAPER

1

SHAFT “F” PC MOUNT R/A
VOLUME

VR102

RS2427

POT 20K QUAD 16mm B-TAPER

1

SHAFT “F” PC MOUNT R/A
FREQUENCY

9

Powered Subwoofer

BU2

Summary of Contents for BU-2

Page 1: ...BU2 Powered Subwoofer A Harman International Company Part No 1112 BU2 11 98 Technical Manual Technical Manual INFINITY SYSTEMS INC 250 Crossways Park Drive Woodbury New York 11797...

Page 2: ...ional refinements may be made to existing products without notice but will always meet or exceed original specifications unless otherwise stated TABLE OF CONTENTS BU2 SPECIFICATIONS 1 TABLE OF CONTENT...

Page 3: ...OT A TRUE AC POWER SWITCH AS IT DOES NOT DISCONNECT THE AMPLIFIER FROM THE AC LINE 2 Standby LED The LED will light green when the unit is plugged in and is receiving signal When in standby mode when...

Page 4: ...ated amplifier fed by the signal generator 7 Turn on generator and adjust so that speaker level output is 2 0V 50 Hz Turn VOLUME control full clockwise 8 Green LED should light immediate bass response...

Page 5: ...4 Powered Subwoofer BU2 BU2 BLOCK DIAGRAM for 120v 230v versions...

Page 6: ...5 Powered Subwoofer BU2 BU2 CABINET EXPLODED VIEW...

Page 7: ...6 Powered Subwoofer BU2 AMPLIFIER EXPLODED VIEW BU2 Amplifier Exploded View E E D D C C B B A A 7 7 6 6 5 5 4 4 3 3 2 2 1 1 2 17 1 3 4 5 6 13 15 22 13 18 19 20 14 24 23 16 16 7 8 10 11 12 21 11 11 9 2...

Page 8: ...racket Pwr Support Bass550 2 14 SP1082 SPONGE W ADHESIVE L 1 4 W 1 4 2 T 3 16 TO 92 15 SP1073 Sil Pad TO 3P 1 0 x 0 750 POWER 3 XTORS TO 218 1X TO 220 2X 16 SC1194 Screw 6 32x3 8 Tapt Thr Hex Washr 2...

Page 9: ...5mm H 16 5mm T R C128 CP1915 CAP POLY FILM 8200pF 5 50V 1 LS 5mm H 16 5mm T R C129 CP1918 CAP POLY FILM 0 27uF 5 50V 1 LS 5mm H 16 5mm T R C130 131 CP1914 CAP POLY FILM 0 039uF 5 50V 2 LS 5mm H 16 5m...

Page 10: ...109 110 RS1790 SMD RES 2 7Kohm 5 1 8W 1206 2 R112 115 RS1713 SMD RES 56Kohm 5 1 8W 1206 2 R114 RS1793 SMD RES 470Kohm 5 1 8W 1206 1 R117 RS1968 SMD RES 2 2Mohm 5 1 8W 1206 1 R118 RS1710 SMD RES 3 3Koh...

Page 11: ...1 0 Powered Subwoofer BU2 BU2 PACKAGING EXPLODED VIEW...

Page 12: ...1 1 Powered Subwoofer BU2 INTEGRATED CIRCUIT DIAGRAMS...

Page 13: ...1 2 Powered Subwoofer BU2 PRINTED CIRCUIT BOARDS TOP VIEW component side...

Page 14: ...1 3 Powered Subwoofer BU2 PRINTED CIRCUIT BOARDS BOTTOM VIEW solder side...

Page 15: ...1 4 Powered Subwoofer BU2 PREAMP CROSSOVER SCHEMATIC 120V VERSION...

Page 16: ...pF C9 2N5401 Q9 R16 47K 2 2K R18 100pF C10 Q8 2N5551 C7 0 1uF R9 10K R10 10K Q3 TIP31E TIP32E Q4 R5 100 C6 0 1uF 15K R22 C5 0 1uF 100V C3 0 1uF C4 0 1uF C2 6800uF 63V C1 6800uF 63V 1N5401 D4 1N5401 D3...

Page 17: ...1 6 Powered Subwoofer BU2 PREAMP CROSSOVER SCHEMATIC 230V VERSION...

Page 18: ...6 0 1uF C25 0 1uF 4 7K R38 C22 0 1uF 8 2K R39 R58 4 7K 330uF 16V C17 R60 100K R61 47K IN4002 D12 R52 10K R53 4 7K Q20 2N5401 R51 100 1W 10K R46 RLS4148 D9 R8 10 L1 5 8uH DTC114TK Q14 10K R59 Q13 2SA10...

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