JBL service manual Contents, E250P/P12SW subwoofers, E250P, P12SW SPECIFICATIONS

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E250P/P12SW subwoofers

E250P/P12SW subwoofers

- CONTENTS -

BASIC SPECIFICATIONS …………….……..…………..1

SAFETY INFORMATION …………….……..….………..2

E250P PACKING……..………………….….….….……...3

P12SW PACKING……..……………………….…………4

DETAILED SPECIFICATIONS ……….……..…………..5

CONNECTIONS………………………...……..…...…..…6

OPERATION ……..………………….……...…….….…...9

BASIC TROUBLESHOOTING…………………………..10

E250P EXPLODED VIEW/PARTS LIST……………….11

P12SW EXPLODED VIEW/PARTS LIST……….……..12

TEST SET-UP AND PROCEDURE….…………………13

AMPLIFIER BLOCK DIAGRAM…………………………14

E250P BULLETIN JBL2005-01..……………..… ……..15

E250P/P12SW TECH TIP JBLTT2003-04 ..…….…...16

DETAILED TROUBLESHOOTING……………………..17

P.C.B. DRAWINGS……………………………………….20

ELECTRICAL PARTS LIST ..……….……….……….…24

IC/TRANSISTOR PINOUTS..……..….…….….….….….28

SCHEMATICS……………………….……………………29

E250P, P12SW SPECIFICATIONS

Amplifier Power (RMS):

250 Watts

Peak Dynamic Power *:

E250P: 550 Watts

 

P12SW: 500 Watts

Driver:

12" (305mm) PolyPlas™

Inputs:

Line Level (switchable to LFE) and Speaker Level

 

with 5-way binding posts

Low-Pass Frequency:

Variable from 50Hz to 150Hz

Frequency Response:

25Hz – Low-pass crossover setting

Dimensions (H x W x D):

19-3/4" x 14-3/8" x 16-1/2"

 

(502mm x 365mm x 419mm)

Weight:

43 lb/19.5kg

JBL continually strives to update and improve existing products, as well as create new ones. The specifications and details in this and related JBL publications are therefore subject to change without notice.

*The Peak Dynamic Power is measured by recording the highest center-to-peak voltage measured across the output of a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.

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Contents Models Powered SubwoofersNorthridge E-SeriesE250P Performance Series P12SW 250 Crossways Park DrE250P, P12SW SPECIFICATIONS CONTENTSE250P/P12SW subwoofers 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 SubwooferDigital Receiver/Processor - LFE Connection E250P/P12SW subwoofersAnalog Receiver/Processor - Line-LevelConnections Crossover Adjustments OPERATIONPower E250P/P12SW subwoofersE250P/P12SW subwoofers TROUBLESHOOTINGPhase Control 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-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 Capacitors E250P/P12SW subwoofersPart Number SemiconductorsMiscellaneous E250P/P12SW subwoofersPart Number 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 TONOT CIRCUIT GROUND E250P/P12SW subwoofersNOTE THIS VOLTAGE IS REFERENCED TO
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