JBL Test Set-Upand Procedure, E250P/P12SW subwoofers, General Function UUT = Unit Under Test

Contents Models Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW 250 Crossways Park DrE250P, P12SW SPECIFICATIONS CONTENTSE250P/P12SW subwoofers Leakage/Resistance Check List of Safety ComponentsRequiring Exact Replacements Critical ComponentsE250P PackagingP12SW PackagingJBL E250P/P12SW Powered Sub/ Plate Amp E250P/P12SW subwoofersE250P/P12SW subwoofers SPEAKER CONNECTIONSpecification QA Testimportant that you avoid join ing any other wires. Do not twist togetherE250P/P12SW subwoofers SubwooferDigital Receiver/Processor - LFE Connection E250P/P12SW subwoofersAnalog Receiver/Processor - Line-LevelConnections Crossover Adjustments OPERATIONPower E250P/P12SW subwoofersE250P/P12SW subwoofers TROUBLESHOOTINGPhase Control E250P Exploded ViewP12SW Exploded ViewGeneral Function UUT = Unit Under Test TEST SET-UPAND PROCEDUREE250P/P12SW subwoofers Sweep FunctionE250P/P12SW subwoofers P10SW &P12SWService Bulletin E250P subwooferP10SW, P12SW For models E150P,E250PTIP# JBLTT2003-04Rev2 PB10,PB12 Revision2. Power Up LED RED DETAILED TROUBLESHOOTINGA. Power Amp Section 4. Check Switching Frequency2. High Level Input Sensitivity DETAILED TROUBLESHOOTING CONTDE250P/P12SW subwoofers 3. Low-PassE250P/P12SW subwoofers DETAILED TROUBLESHOOTING CONTDFLOW CHART E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers Resistors E250P/P12SW 120v Electrical Parts ListE250P/P12SW subwoofers Capacitors E250P/P12SW subwoofersPart Number SemiconductorsMiscellaneous E250P/P12SW subwoofersPart Number E250P/P12SW subwoofers Part NumberSemiconductor Pinout Diagrams E250P/P12SW subwoofersP12SW Value of C65 = 47uf See service bulletin for E250PE250P/P12SW subwoofers NOTE THIS VOLTAGE IS REFERENCED TONOT CIRCUIT GROUND E250P/P12SW subwoofersNOTE THIS VOLTAGE IS REFERENCED TO