Detailed Troubleshooting, E250P/P12SW subwoofers

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Contents

Models Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW 250 Crossways Park Dr CONTENTS E250P/P12SW subwoofersE250P, P12SW SPECIFICATIONS Leakage/Resistance Check List of Safety ComponentsRequiring Exact Replacements Critical Components E250P Packaging P12SW Packaging JBL E250P/P12SW Powered Sub/ Plate Amp E250P/P12SW subwoofers E250P/P12SW subwoofers SPEAKER CONNECTIONSpecification QA Test important that you avoid join ing any other wires. Do not twist togetherE250P/P12SW subwoofers Subwoofer E250P/P12SW subwoofers Analog Receiver/Processor - Line-LevelConnectionsDigital Receiver/Processor - LFE Connection Crossover Adjustments OPERATIONPower E250P/P12SW subwoofers TROUBLESHOOTING Phase ControlE250P/P12SW subwoofers E250P Exploded View P12SW Exploded View General Function UUT = Unit Under Test TEST SET-UPAND PROCEDUREE250P/P12SW subwoofers Sweep Function E250P/P12SW subwoofers P10SW &P12SW Service Bulletin E250P subwoofer P10SW, P12SW For models E150P,E250PTIP# JBLTT2003-04Rev2 PB10,PB12 Revision 2. Power Up LED RED DETAILED TROUBLESHOOTINGA. Power Amp Section 4. Check Switching Frequency 2. High Level Input Sensitivity DETAILED TROUBLESHOOTING CONTDE250P/P12SW subwoofers 3. Low-Pass DETAILED TROUBLESHOOTING CONTD FLOW CHARTE250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW subwoofers E250P/P12SW 120v Electrical Parts List E250P/P12SW subwoofersResistors Capacitors E250P/P12SW subwoofersPart Number Semiconductors E250P/P12SW subwoofers Part NumberMiscellaneous E250P/P12SW subwoofers Part Number Semiconductor Pinout Diagrams E250P/P12SW subwoofers P12SW Value of C65 = 47uf See service bulletin for E250PE250P/P12SW subwoofers NOTE THIS VOLTAGE IS REFERENCED TO E250P/P12SW subwoofers NOTE THIS VOLTAGE IS REFERENCED TONOT CIRCUIT GROUND

JBL Detailed Troubleshooting, E250P/P12SW subwoofers, A. Power Amp Section, Power Up LED RED

Models: P12SW E250P