Service Bulletin, E250P subwoofer | JBL P12SW instruction

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JBL P12SW service manual Service Bulletin, E250P subwoofer

Contents

Powered Subwoofers Northridge E-SeriesE250P Performance Series P12SWModels 250 Crossways Park Dr E250P/P12SW subwoofers CONTENTSE250P, P12SW SPECIFICATIONS List of Safety Components Requiring Exact ReplacementsLeakage/Resistance Check Critical Components E250P Packaging P12SW Packaging JBL E250P/P12SW Powered Sub/ Plate Amp E250P/P12SW subwoofers SPEAKER CONNECTION SpecificationE250P/P12SW subwoofers QA Test ing any other wires. Do not twist together E250P/P12SW subwoofersimportant that you avoid join Subwoofer Analog Receiver/Processor - Line-LevelConnections E250P/P12SW subwoofersDigital Receiver/Processor - LFE Connection OPERATION PowerCrossover Adjustments E250P/P12SW subwoofers Phase Control TROUBLESHOOTINGE250P/P12SW subwoofers E250P Exploded View P12SW Exploded View TEST SET-UPAND PROCEDURE E250P/P12SW subwoofersGeneral Function UUT = Unit Under Test Sweep Function E250P/P12SW subwoofers P10SW &P12SW Service Bulletin E250P subwoofer For models E150P,E250P TIP# JBLTT2003-04Rev2P10SW, P12SW PB10,PB12 Revision DETAILED TROUBLESHOOTING A. Power Amp Section2. Power Up LED RED 4. Check Switching Frequency DETAILED TROUBLESHOOTING CONTD E250P/P12SW subwoofers2. High Level Input Sensitivity 3. Low-Pass FLOW 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 E250P/P12SW subwoofers Part NumberCapacitors Semiconductors Part Number E250P/P12SW subwoofersMiscellaneous E250P/P12SW subwoofers Part Number Semiconductor Pinout Diagrams E250P/P12SW subwoofers See service bulletin for E250P E250P/P12SW subwoofersP12SW Value of C65 = 47uf NOTE THIS VOLTAGE IS REFERENCED TO NOTE THIS VOLTAGE IS REFERENCED TO E250P/P12SW subwoofersNOT CIRCUIT GROUND