JBL For models E150P,E250P, TIP# JBLTT2003-04Rev2, P10SW, P12SW, PB10,PB12 Revision, Tech Tips

Contents Northridge E-SeriesE250P Performance Series P12SW Powered SubwoofersModels 250 Crossways Park DrE250P, P12SW SPECIFICATIONS CONTENTSE250P/P12SW subwoofers Requiring Exact Replacements List of Safety ComponentsLeakage/Resistance Check Critical ComponentsPackaging E250PPackaging P12SWE250P/P12SW subwoofers JBL E250P/P12SW Powered Sub/ Plate AmpSpecification SPEAKER CONNECTIONE250P/P12SW subwoofers QA TestE250P/P12SW subwoofers ing any other wires. Do not twist togetherimportant that you avoid join SubwooferDigital Receiver/Processor - LFE Connection E250P/P12SW subwoofersAnalog Receiver/Processor - Line-LevelConnections Power OPERATIONCrossover Adjustments E250P/P12SW subwoofersE250P/P12SW subwoofers TROUBLESHOOTINGPhase Control Exploded View E250PExploded View P12SWE250P/P12SW subwoofers TEST SET-UPAND PROCEDUREGeneral Function UUT = Unit Under Test Sweep FunctionP10SW &P12SW E250P/P12SW subwoofersE250P subwoofer Service BulletinTIP# JBLTT2003-04Rev2 For models E150P,E250PP10SW, P12SW PB10,PB12 RevisionA. Power Amp Section DETAILED TROUBLESHOOTING2. Power Up LED RED 4. Check Switching FrequencyE250P/P12SW subwoofers DETAILED TROUBLESHOOTING CONTD2. High Level Input Sensitivity 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 Part Number E250P/P12SW subwoofersCapacitors SemiconductorsMiscellaneous E250P/P12SW subwoofersPart Number Part Number E250P/P12SW subwoofersE250P/P12SW subwoofers Semiconductor Pinout DiagramsE250P/P12SW subwoofers See service bulletin for E250PP12SW Value of C65 = 47uf NOTE THIS VOLTAGE IS REFERENCED TONOT CIRCUIT GROUND E250P/P12SW subwoofersNOTE THIS VOLTAGE IS REFERENCED TO