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JBL E250P/P12SW subwoofers, P12SW Value of C65 = 47uf, See service bulletin for E250P

Models: P12SW E250P

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Page 30

Image 30

E250P/P12SW subwoofers

SCHEMATICS

NOTE: THIS VOLTAGE IS

REFERENCED TO -V,

NOT CIRCUIT GROUND

P12SW Value of C65 = 47uf

See service bulletin for E250P

NOTE: THIS VOLTAGE IS

REFERENCED TO -V,

NOT CIRCUIT GROUND

Page 30

Image 30

JBL service manual E250P/P12SW subwoofers, P12SW Value of C65 = 47uf, See service bulletin for E250P, Not Circuit Ground

Contents

Models Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW 250 Crossways Park DrCONTENTS E250P/P12SW subwoofersE250P, 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 SubwooferE250P/P12SW subwoofers Analog Receiver/Processor - Line-LevelConnectionsDigital Receiver/Processor - LFE Connection Crossover Adjustments OPERATIONPower E250P/P12SW subwoofersTROUBLESHOOTING Phase ControlE250P/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-PassDETAILED 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 SemiconductorsE250P/P12SW subwoofers Part NumberMiscellaneous 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 TOE250P/P12SW subwoofers NOTE THIS VOLTAGE IS REFERENCED TONOT CIRCUIT GROUND