JBL-ARCSUB8_MK3-pwr-sm 电路图 维修手册.pdf

S E R V I C E M A N U A L ARC SUB 8 Discrete Output, High Current 8” Powered Subwoofer JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1112-ARCSUB8 Rev C 4/2001 RadioFans.CN 收音机爱 好者资料库 TABLE OF CONTENTS Powered Subwoofer ARC SUB 8 1 SPECIFICATIONS.1 WARRANTY.2 SAFETY SYMBOLS .2 CONTROLS AND THEIR FUNCTION.3 TEST PROCEDURES.4 CAUTIONS AND WARNINGS .5 ARC SUB 8 AMPLIFIER BLOCK DIAGRAM .7 CABINET EXPLODED VIEW.8 Service Bulletin JBL9903 Rev1 - February 2001 .9 Service Bulletin JBL2000-01 Rev2 - February 2001.10 ARC SUB 8 ELECTRICAL PARTS LISTS .11 ARC SUB 8 MECHANICAL PARTS LISTS.12 PACKAGING EXPLODED VIEW.13 INTEGRATED CIRCUIT DIAGRAM .14 PRINTED CIRCUIT BOARD (TOP VIEW).15 SCHEMATIC DIAGRAM 1 .16 SCHEMATIC DIAGRAM 2 .17 Amplifier Power (RMS) .80 watts 1% THD Drivers.8” with high-polymer-laminated cone Inputs.Line Level and High Level Outputs* .High level with High-Pass filter at 180Hz Crossover Frequency.50-150Hz (continuously variable) Frequency Response.45Hz to 150Hz (determined by crossover setting) Input Impedance.20k ohm Input Sensitivity.220mV External Dimensions (Inches) Height .9 ” Width.14” Depth.12 ” Weight.18 lbs External Dimensions (mm) Height .235 mm Width.356 mm Depth.318 mm Weight.8.1 kg GENERAL SPECIFICATIONS * 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. This Product is Part of the ARC CINEMA II SYSTEM RadioFans.CN 收音机爱 好者资料库 Powered Subwoofer ARC SUB 8 2 WARRANTY IMPORTANT SERVICE NOTES: When testing the ARC Series amplifier, a load must always be connected to the output terminals, whether the woofer, or a 4 to 8 ohm resis- tive load. All AC powered test instruments (meters, oscilloscopes, etc.) must have a floating ground, i.e. be connected to an isolation transformer. RadioFans.CN 收音机爱 好者资料库 Powered Subwoofer ARC SUB 8 3 CONTROLS AND THEIR FUNCTION Powered Subwoofer ARC SUB 8 4 TEST PROCEDURES Powered Subwoofer ARC SUB 8 5 CAUTIONS AND WARNINGS Powered Subwoofer ARC SUB 8 6 CAUTIONS AND WARNINGS (Cont.) Powered Subwoofer ARC SUB 8 7 ARC SUB 8 AMPLIFIER BLOCK DIAGRAM Powered Subwoofer ARC SUB 8 8 CABINET EXPLODED VIEW 9 10 Powered Subwoofer ARC SUB 8 11 ARC SUB 8 ELECTRICAL PARTS LIST Powered Subwoofer ARC SUB 8 12 ARC SUB 8 MECHANICAL PARTS LISTS Powered Subwoofer ARC SUB 8 13 PACKAGING EXPLODED VIEW Powered Subwoofer ARC SUB 8 14 INTEGRATED CIRCUIT DIAGRAM Powered Subwoofer ARC SUB 8 15 PRINTED CIRCUIT BOARD (TOP VIEW) Powered Subwoofer ARC SUB 8 16 SCHEMATIC DIAGRAM 1 Powered Subwoofer ARC SUB 8 17 SCHEMATIC DIAGRAM 2