Troubleshooting, E250P/P12SW subwoofers, Phase Control

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Contents

250 Crossways Park Dr Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW Models E250P, P12SW SPECIFICATIONS CONTENTSE250P/P12SW subwoofers Critical Components List of Safety ComponentsRequiring Exact Replacements Leakage/Resistance Check Packaging E250P Packaging P12SW E250P/P12SW subwoofers JBL E250P/P12SW Powered Sub/ Plate Amp QA Test SPEAKER CONNECTIONSpecification E250P/P12SW subwoofers Subwoofer ing any other wires. Do not twist togetherE250P/P12SW subwoofers important that you avoid join Digital Receiver/Processor - LFE Connection E250P/P12SW subwoofersAnalog Receiver/Processor - Line-LevelConnections E250P/P12SW subwoofers OPERATIONPower Crossover Adjustments E250P/P12SW subwoofers TROUBLESHOOTINGPhase Control Exploded View E250P Exploded View P12SW Sweep Function TEST SET-UPAND PROCEDUREE250P/P12SW subwoofers General Function UUT = Unit Under Test P10SW &P12SW E250P/P12SW subwoofers E250P subwoofer Service Bulletin PB10,PB12 Revision For models E150P,E250PTIP# JBLTT2003-04Rev2 P10SW, P12SW 4. Check Switching Frequency DETAILED TROUBLESHOOTINGA. Power Amp Section 2. Power Up LED RED 3. Low-Pass DETAILED TROUBLESHOOTING CONTDE250P/P12SW subwoofers 2. High Level Input Sensitivity E250P/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 Semiconductors E250P/P12SW subwoofersPart Number Capacitors Miscellaneous E250P/P12SW subwoofersPart Number Part Number E250P/P12SW subwoofers E250P/P12SW subwoofers Semiconductor Pinout Diagrams NOTE THIS VOLTAGE IS REFERENCED TO See service bulletin for E250PE250P/P12SW subwoofers P12SW Value of C65 = 47uf NOT CIRCUIT GROUND E250P/P12SW subwoofersNOTE THIS VOLTAGE IS REFERENCED TO

JBL service manual Troubleshooting, E250P/P12SW subwoofers, Phase Control

Models: P12SW E250P