JBL-ARCSUB8_MK3-pwr-sm 维修电路原理图.pdf

S E R V I C E M A N U A LARC SUB 8Discrete Output, High Current8” Powered SubwooferJBL Consumer Products Inc.250 Crossways Park DriveWoodbury, N.Y. 117971112-ARCSUB8 Rev C 4/2001RadioFans.CN 收音机爱 好者资料库TABLE OF CONTENTSPowered SubwooferARC SUB 81SPECIFICATIONS.1WARRANTY.2SAFETY SYMBOLS .2CONTROLS AND THEIR FUNCTION.3TEST PROCEDURES.4CAUTIONS AND WARNINGS .5ARC SUB 8 AMPLIFIER BLOCK DIAGRAM .7CABINET EXPLODED VIEW.8Service Bulletin JBL9903 Rev1 - February 2001 .9Service Bulletin JBL2000-01 Rev2 - February 2001.10ARC SUB 8 ELECTRICAL PARTS LISTS .11ARC SUB 8 MECHANICAL PARTS LISTS.12PACKAGING EXPLODED VIEW.13INTEGRATED CIRCUIT DIAGRAM .14PRINTED CIRCUIT BOARD (TOP VIEW).15SCHEMATIC DIAGRAM 1 .16SCHEMATIC DIAGRAM 2 .17Amplifier Power (RMS) .80 watts 1% THDDrivers.8” with high-polymer-laminated coneInputs.Line Level and High LevelOutputs* .High level with High-Pass filter at 180HzCrossover Frequency.50-150Hz(continuously variable)Frequency Response.45Hz to 150Hz(determined by crossover setting)Input Impedance.20k ohmInput Sensitivity.220mVExternal Dimensions (Inches)Height .9 ”Width.14”Depth.12 ”Weight.18 lbsExternal Dimensions (mm)Height .235 mmWidth.356 mmDepth.318 mmWeight.8.1 kgGENERAL 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 willalways meet or exceed original specifications unless otherwise stated.This Product is Part of the ARC CINEMA II SYSTEMRadioFans.CN 收音机爱 好者资料库Powered SubwooferARC SUB 82WARRANTYIMPORTANT SERVICE NOTES: When testing the ARCSeries amplifier, a load must always be connected to theoutput 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 anisolation transformer.Powered SubwooferARC SUB 83CONTROLS AND THEIR FUNCTIONPowered SubwooferARC SUB 84TEST PROCEDURESPowered SubwooferARC SUB 85CAUTIONS AND WARNINGSPowered SubwooferARC SUB 86CAUTIONS AND WARNINGS (Cont.)Powered SubwooferARC SUB 87ARC SUB 8 AMPLIFIER BLOCK DIAGRAMPowered SubwooferARC SUB 88CABINET EXPLODED VIEW910Powered SubwooferARC SUB 811ARC SUB 8 ELECTRICAL PARTS LISTPowered SubwooferARC SUB 812ARC SUB 8 MECHANICAL PARTS LISTSPowered SubwooferARC SUB 813PACKAGING EXPLODED VIEWPowered SubwooferARC SUB 814INTEGRATED CIRCUIT DIAGRAMPowered SubwooferARC SUB 815PRINTED CIRCUIT BOARD (TOP VIEW)Powered SubwooferARC SUB 816SCHEMATIC DIAGRAM 1Powered SubwooferARC SUB 817SCHEMATIC DIAGRAM 2