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YORKVILLE LS801P Service Manual

YORKVILLE LS801P
18 pages
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U.S.A.
Yorkville Sound Inc.
4625 Witmer Industrial Estate
Niagara Falls, New York
14305 USA
Voice: (716) 297-2920
Fax: (716) 297-3689
WORLD HEADQUARTERS
WEB ACCESS: http://www.yorkville.com
CANADA
Yorkville Sound
550 Granite Court
Pickering, Ontario
L1W-3Y8 CANADA
Voice: (905) 837-8481
Fax: (905) 837-8746
Quality and Innovation Since 1963
Printed in Canada
SERVICE MANUAL
LS801P
TYPE: YS1023; E60
Manual-Service-LS801P-00-1v0• Sept 3/2009
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YORKVILLE LS801P Specifications

General IconGeneral
TypeActive Subwoofer
Power Output800W RMS
Program Power1600W
Driver Size18 inches
Input Sensitivity+4dBu
Phase Switch0 / 180 degrees
InputsXLR, 1/4 inch
OutputsXLR
Input Impedance10k ohms
Enclosure MaterialBirch Plywood
Dimensions (H x W x D)24 x 21 x 23 inches (61 x 53.3 x 58.4 cm)

Summary

Important Safety Instructions

General Safety Precautions

Covers warnings about electric shock, fire hazards, water exposure, and general usage.

Specific Safety Guidelines (UL60065)

Lists numbered safety instructions for operation and maintenance as per UL60065 standards.

Front Panel Overview and Controls

Speaker Configuration Modes

Explains setup options for stereo active and passive speaker configurations.

Level and Tone Adjustments

Details controls for adjusting output level, sound shape, and high-frequency rolloff.

Technical Specifications

System Block Diagram

Circuitry Diagrams - Input and Signal Processing

Gain, Boost, and Limiting Circuits

Illustrates input gain, boost stages, RMS detection, and peak limit detection circuits.

Rolloff Frequency and Signal Path

Depicts the rolloff frequency adjustment and the signal flow through processing stages.

Circuitry Diagrams - Amplifier Stages

Woofer Amplifier and Driver Circuits

Shows the woofer amplifier section, driver chip supply, and associated power components.

Limit and Protection Circuits

Details the electronic circuits responsible for limiting output and providing protection.

Circuitry Diagrams - Power Supply and Oscillator

Power Supply Unit Schematic

Provides a schematic of the internal power supply unit and its connections.

Triangle Oscillator Circuit

Illustrates the electronic circuit for generating the triangle waveform.

PCB Interconnection Overview

Semiconductor Component Identification

Printed Circuit Board Layout

Production Notes and Component Details

Production Revision History

Lists significant changes and updates made to the product over its development history.

Control Knob Assignments

Maps specific controls on the unit to their corresponding part numbers and knob types.

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