JBL service manual E250P/P12SW subwoofers

Contents Models Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW 250 Crossways Park DrE250P/P12SW subwoofers CONTENTSE250P, P12SW SPECIFICATIONS 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 SubwooferAnalog Receiver/Processor - Line-LevelConnections E250P/P12SW subwoofersDigital Receiver/Processor - LFE Connection Crossover Adjustments OPERATIONPower E250P/P12SW subwoofersPhase Control TROUBLESHOOTINGE250P/P12SW subwoofers 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-PassFLOW CHART DETAILED TROUBLESHOOTING CONTDE250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW 120v Electrical Parts ListResistors Capacitors E250P/P12SW subwoofersPart Number SemiconductorsPart Number E250P/P12SW subwoofersMiscellaneous 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 TONOTE THIS VOLTAGE IS REFERENCED TO E250P/P12SW subwoofersNOT CIRCUIT GROUND