JBL service manual Northridge E-SeriesE250P Performance Series P12SW, Models

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Models:

Models:

Northridge™ E-Series E250P Performance Series P12SW

Powered Subwoofers

Service Manual

JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797	Rev3 4/2006

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Contents Northridge E-SeriesE250P Performance Series P12SW Powered SubwoofersModels 250 Crossways Park DrE250P/P12SW subwoofers CONTENTSE250P, P12SW SPECIFICATIONS 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 SubwooferAnalog Receiver/Processor - Line-LevelConnections E250P/P12SW subwoofersDigital Receiver/Processor - LFE Connection Power OPERATIONCrossover Adjustments E250P/P12SW subwoofersPhase Control TROUBLESHOOTINGE250P/P12SW subwoofers 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-PassFLOW 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 Part Number E250P/P12SW subwoofersCapacitors SemiconductorsPart Number E250P/P12SW subwoofersMiscellaneous 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 TONOTE THIS VOLTAGE IS REFERENCED TO E250P/P12SW subwoofersNOT CIRCUIT GROUND

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