Genelec OY 1031A Lautsprecher
Hersteller:
Modell:
1031A
Datum:
1993
Kategorie:
Gruppe:
Beschreibung:
Monitor Speaker

Information

The 1031A is a compact monitoring Speaker designed for broad band high output and low coloration. Due to its small cabinet, this Speaker is ideally suited to applications such as: high powered Near Field monitoring, TV broadcast monitoring and mobile vans This speakers precision even allows for CD mastering. It may be either horizontally or vertically mounted, by simple rotation of the Directivity Control Waveguide (DCW). Designed as an active Speaker, this unit includes drivers, power ^ amplifiers andactive Crossover filtering. This provides a totally dedicated and reliable system which simply requires a signal input and a mains supply. The Amplifier unit is mounted to the rear of the Speaker cabinet on quick release vibration isolators, to ensure long term reliability. This unit incorporates power amplifiers, Bass and treble driver overload protection, Amplifier thermal overload protection, active Crossover filter, treble tilt, Bass tilt and Bass roll-off controls. By use of active tone controls, this Speaker may be exactly matched to any application. These include free field mounting, near field on top of console, wall mounting in control room and even corner mounting. These versatile controls allow for precise alignment of the Speaker to differing acoustic environments, making it a true all rounder. The 1031A uses DCW technology in conjunction with some of the finest driver technology. The woofer unit is a high efficiency 210 mm polymer composite cone, custom optimized for use in a small active cabinet. The tweeter unit is a 25 mm metal dome with pure piston behavior upto 23 kHz. When mounted in the DCW this driver offers superior transient and off axis response to conventional direct radiating soft domes. These has resulted in perfect driver directivity matching as well as phase and delay uniformity at the Crossover frequency. DCW technology also ensures low diffraction and constant directivity in addition to providing higher driver sensitivity. The speakers response is thus flat upto an angle of 60 degrees. The cabinet is constructed of veneered MDF, which is heavily braced to eliminate structural resonance. Carefully placed damping remove internal standing waves which might lead to coloration in the midrange. Non resonant port techniques have been employed to eliminate the effects of port ringing found in conventional designs.

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Serviceanleitung
Dokumenttyp:
Serviceanleitung
Seiten:
44
Größe:
4.46 Mbytes (4679084 Bytes)
Sprache:
english
Revision:
Dokument-ID:
Datum:
1993 01 01
Qualität:
Gescanntes Dokument, teilweise schwer oder teilweise nicht zu lesen.
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2017 08 16
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1. General Information ... 1-1 1.1 Description ... 1-1 1.2 Technical specifications ... 1-2 1.2.1 System specifications ... 1-2 1.2.2 Amplifier section ... 1-3 1.2.3 Crossover section ... 1-3 2. Functional description ... 2-1 2.1 General description ... 2-1 2.2 Circuit Description ... 2-2 2.2.1 Input Amplifier and Crossover network ... 2-2 2.2.2 Treble and Bass driver protection circuit ... 2-2 2.2.3 Power Amplifiers ... 2-3 2.2.4 Power supply ... 2-3 3. Adjustments ... 3-1 3.1 Test configuration ... 3-1 3.2 Adjustment points ... 3-1 3.3 Adjustment procedures ... 3-2 3.3.1 Bass Amplifier offset voltage and bias current adjustment ... 3-2 3.3.2 Treble Amplifier offset voltage and bias current adjustment ... 3-2 3.3.3 Crossover network level control adjustment ... 3-2 4. Servicing ... 4-1 4.1 Safety considerations ... 4-1 4.2 Servicing facilities ... 4-1 4.3 Disassembly instructions ... 4-2 4.3.1 Removing the rear panel ... 4-2 4.3.2 Detaching the Amplifier deck ... 4-2 4.3.3 Detaching the circuit board ... 4-2 4.4 Troubleshooting ... 4-3 4.4.1 Checking Crossover filter response ... 4-3 4.4.2 Checking the total voltage gain values ... 4-4 4.4.3 Voltage gain adjustment procedure ... 4-4 4.4.4 Checking the protection circuits ... 4-7 4.4.5 Changing the Power Amplifier Driver Board ... 4-8 4.4.6 Changing the Power Transistors ... 4-8 5. Spare Parts ... 5-1 5.1 Ordering Information ... 5-1 5.2 Recommended spare parts stock ... 5-1 6. Drawings ... 6-1 List of drawings ... 6-1

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