Infinity Overture 3 Compositions Series Manuel utilisateur

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Compositions Series

Overture 3

Powered Loudspeakers

Service Manual

Infinity Systems, Inc

250 Crossways Park Dr.

Woodbury, New York 797

Rev1 5/2004

TABLE OF CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . ……. . . . .3

DETAILED SPECIFICATIONS . . . . . . . . . . . . . .. . . . . . . . . . …… . . . . .4

WIRING THE SYSTEM . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . …….. . . . .5

OPERATING THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . ……. . . . .6

REPLACING THE FUSE . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . ……. . . .7

CARE OF YOUR SPEAKER SYSTEM/TROUBLESHOOTING . ….…. .10

MECHANICAL/PACKAGING PARTS LIST . . . ……….……………... . . .11

EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . …………... . . . . . . .12

PACKAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ……. . . . . . . . . .13

SERVICE BULLETIN INF9704 NOV. 1997 …………………………….....14

SERVICE BULLETIN INF9705 NOV. 1997 . . .. . . . . …………. . . . . . . .16

SERVICE BULLETIN INF9802 JUNE 1998. . .. . . . . …………. . . . . . . .17

TEST SET UP AND PROCEDURE . . . . . . . . ........................................18

NOTE ON OVTR 2/3 AMPLIFIER REVISION……………………………..19

PCB DRAWINGS . . . . . . . . . . . . . . . . . . . . . . . . . ……... . . . . . . . . . . . .20

ELECTRICAL PARTS LIST (120V) . . . . . .. . . . . . . …………………. . . .22

ELECTRICAL PARTS LIST (230V) . . . . . . . . . . . . . . . . …... . . . . . . . . .25

INTEGRATED CIRCUIT DIAGRAMS . . . . . . . . . . . . . . ……. . . . . . . . . .28

WIRING DIAGRAM/CROSSOVER NETWORK SCHEMATIC (120V) . . .29

WIRING DIAGRAM/CROSSOVER NETWORK SCHEMATIC (230V) . . .30

120V SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . … . . . .31

230V SCHEMATICS . . . . . . . . . . . . . . . . . . . . . . . .. . . . …….. . . . . . . . .34

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.

Overture 3

2

Overture 3

3

Specifications

Overture 3 Frequency Response: 25Hz - 20,000Hz (±3dB)

Recommended Amplifier Power Range 10-200 watts*

Amplifier Peak Output: 500VA

Maximum Output: 115 dB SPL

Sensitivity: 94 dB 2.83V @ 1 meter

Nominal Impedance: 8Ω

Crossover Frequencies: 350 and 3,000Hz

Low-Frequency Driver: (4) 6-1/2” (165mm) high efficiency,

dynamically balanced, magnetically

shielded woofers.

Midrange Driver: (2) 5-1/4” (125mm) high-efficiency,

magnetically shielded midrange drivers.

High-Frequency Driver: (1) 1” (25mm) soft dome, high-

efficiency, neodymium magnet,

magnetically shielded tweeter.

Dimensions (H x W x D): 46" x 6-7/8" x 15-3/4"

(1,168mm x 175mm x 400mm)

Weight: 59 lb/(26.8 kg)

Power Consumption: 300 watts (Maximum)

* The maximum recommended amplifier power rating will ensure proper system headroom to allow

for occasional peaks. We do not recommend sustained operation at these maximum power levels.

Detailed Specifications

Overture 3

4

Overture 3

5

Wiring The System

Overture 3

6

Operating The System

Overture 3

7

Operating The System/ eplacing The Fuse

Overture 3

8

eplacing the Fuse (Cont.)

Overture 3

9

eplacing The Fuse (Cont.)

UTILSER UN FUSIBLE DE

RECHANGE DE MEME TYPE ET

CALIBRE

FOR CONTINUED PROTECTION AGAINST

RISK OF FIRE,REPLACE ONLY WITH SAME

TYPE OF FUSE: T1.6A 250V

CAUTION: ATTENTION:

POWER FUSE

T 1.6A 250V ~ 230V 50Hz

150W MAX

00435

F

U

S

E

F

U

S

E

FUSE T3, 1.6A

250V

OVTR 2 & 3 FUSE

Overture 3

0

Troubleshooting