Jbl arcsub service manual
This is the 18 pages manual for jbl arcsub service manual.
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Extracted text from jbl arcsub service manual (Ocr-read)
Page 1
1 Powered SubwooferARC SUB TABLE OF CONTENTS Specifications .................................................................1 Warranty .........................................................................2 Safety Symbols ..............................................................2 Controls and Their Functions.........................................3 Test Procedures .............................................................4 Trouble Shooting Before Opening .................................5 Removing the Amplifier ..................................................5 Trouble Shooting After Removal ...................................5 Components Requiring Exact Replacement..................6Block Diagram ................................................................7 Amplifier Exploded View ................................................8 Cabinet Exploded View ..................................................9 Parts Lists.....................................................................10 Packaging and Shipping ..............................................12 Integrated Circuit Diagrams .........................................13 Printed Circuit Boards .................................................14 Schematic Diagrams ...................................................16 SPECIFICATIONS Amplifier Power RMS...........75Watts Drivers................8"with high-polymer-laminated cones Inputs................Line level and High Level Outputs*...............High level with High-Pass filter at 180Hz Crossover Frequency...........50-150Hz (continuosly variable) Frequency Response...........45Hz to (50 - 150Hz) (determined by crossover setting) External Dimensions (Inches) Height................91/4" Width................14" Depth................121/2" Weight................23lbs External Dimensions (mm) Height................235mm Width................356mm Depth................318mm Weight................10.5 kg * High-Level (speaker) outputs are active only if high-level input are used. Occasional refinements may be made to existing products without notice, but will always meet or exceed original specifications unless otherwise stated.
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2 Powered SubwooferARC SUB WARRANTY This amplifier is warranted against defects in material and workmanship for a period of 90 days from date of shipment, when installed in accordance with the owners manual in a clean, dry, interior home environment. THIS AMPLIFIER IS NOT SUITABLE FOR OPERATION OUTSIDE OR IN HARSH ENVIRONMENTS. During the warranty period, the manufacturer will, at its option, either repair of replace products which prove to be defective. For warranty service or repair, this product must be properly packed and returned to a service facility designated by the manufacturer. Buyer shall prepay shipping charges to the designated facility and the manufacturer shall pay shipping charges to return the product to buyer. However, Buyer shall pay all shipping charges, duties and taxes for products returned to the manufacturer from another country. The manufacturer does not warrant that the operation of the product will be uninterrupted or error-free. The Buyer must determine the suitability of the product for his or her purposes. LIMITATION OF WARRANTY The foregoing warranty shall not apply to defects resulting from improper or inadequate maintenance by Buyer, Buyer-supplied interfacing, unauthorized modification or misuse, operation outside of the environment specifications for the product including inadequate ventilation, or improper site preparation, installation, or maintenance. NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. THE MANUFACTURER SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. EXCLUSIVE REMEDIES THE REMEDIES PROVIDED HEREIN ARE BUYERS SOLE AND EXCLUSIVE REMEDIES. THE MANUFACTURER SHALL NOT BE LIABLE FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY. SAFETY SYMBOLS The following symbols are used throughout this manual and in the product. Familiarize yourself with each of the symbols and its meaning before servicing this amplifier. Instruction manual symbol. The product will be marked with this symbol when it is necessary for the user to refer to the instruction manual in order to protect the unit against damage. Indicates dangerous voltages are present. Be extremely careful. TheCAUTIONsign denoted a hazard. It calls attention to a procedure which, if not correctly performed or adhered to, could result in damage to or destruction of the amplifier. Do not proceed beyond aCAUTIONsign until the indicated conditions are fully understood and met. TheWARNINGsign denotes a hazard. It calls attention to a procedure which, if not correctly performed or adhered to could result in injury or loss of life. Do not proceed beyond aWARNINGsign until the indicated conditions are fully understood and met. GENERAL SAFETY CONSIDERATIONS THIS UNIT DOES NOT HAVE A POWERSWITCH; HAZARDOUS VOLTAGES ARE PRESENT WITHIN THE UNIT WHENEVERIT IS PLUGGED IN.This still applies when the over-temperature thermostat opens, as it may automatically reset at any time. There are voltages and hot components at many points in the amplifier which can, if contacted, cause serious injury. Be extremely careful. Any adjustments or service procedures that require operation of the amplifier out of its enclosure should be performed only by trained service personnel.