Instruction/ maintenance manual of the product E250P JBL
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Models: Northridge ™ E -Series E 250P Performance S eries P12S W Powered Subwoofer s Service Manual JBL Cons umer Produc ts 250 Cr ossw ays Par k D r.
- CONTENTS - BASIC SPECIF I CATIO N S ……………. ……..…………..1 SAFET Y INF ORMAT ION …………….……..….………..2 E250P P ACKING……..………………….….….….……...3 P12SW PACKING……..……………………….
W ar ning Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is assumed that any person who removes the amplifier fr om this cabinet has been properly trained in pr otecting against avoidable injury and shock.
1 5 3 14 2 4 E250P Packaging Ref# Part N umbe r Description Qty 1 3512 49-0 02 M ANUAL, O W NER- E25 0P/ E250 P 1 2 35 1249-0 01 CAR TON,M ASTER -E 250P (BEEC H M ODEL) 1 3512 49-0 03 CAR TON,M ASTER .
1 5 3 2 4 Packaging P12SW 6 Ref # Pa rt Numbe r De scription Qty 1 361803- 001 P12S W Owner ’s M anual 1 2 3618 13-0 01 P12S W Out er Car ton 1 3 351252- 001 Packin g Foam (T op) 1 4 351252- 002 Pac.
JBL E250P/P12SW Powered Sub/ Plate Amp LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation EU 230vac/50-60Hz Yes 207-264 230 Vrms Normal operation, MOMS required Parameter Specification Unit QA Test Limits Conditions Notes Amp Section Type (Class AB, D, other) D n/a n/a Load Impedance (speaker) 5.
Parameter Specification Unit QA Test Limits Conditions Notes Turn-on Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from OFF to ON Turn-off Transient 50 mV-peak 2v-pp @ Speaker Outputs AC Line cycled from ON to OFF Efficiency Efficiency 65 % 64 Nominal Line voltage 120 VAC Stand-by Input Power 24 Watts 26 @ nom.
Analog Receiver/Processor – Speaker -Level Connections Use this installation method only with an analog receiver/ processor that does not have digital processing or bass management, and also does no.
Digital Receiver/Processor – LFE Connection Use this installation method for Dolby Digital, DTS ® or other digital surround processors that have bass-management programming, or for analog receivers/processors that have a filtered subwoofer output: IMPORT ANT : Make sure that the LFE toggle switch on the subwoofer is in the “LFE” position.
OPERA TION When the unit is plugged in and the power switch is on and no signal is received, the LED on the top of the unit will turn red. When a signal is present, the LED will turn green. Note: It will take several min- utes for the LED to turn from green to red after the input signal to the subwoofer is removed.
TROUBLESHOOTING If you used the high-level (speaker) inputs and there is no sound from any of the speakers: • Check that the receiver/ amplifier is on and a source is playing. • Check that the powered subwoofer is plugged into an active electrical outlet and is switched on.
Ref# Part N umbe r Description Qty 6 3513 48-0 01 PLAT E,LED/ LOGO- E25 0P 1 7 3381 25-0 02 ASY,L ED-E2 50P/E 250P 1 8 3364 86-0 01 ASY,F OOT ,PLSTC - E 250P 4 9 763- 3111 0-4 0 SCR EW, 8 X 2 1/ 2,TR,PH ,PB ,BLK Z INC ,LC S (F OOT) 4 10 9083 02-012 SCRE W , P B,HXS, #6x.
9 8 Amplifier – Not for Sale Exploded V iew P 12S W Ref # Pa rt Numbe r De scription Qty 1 352024- 003 ASY, GRI LLE, BLK, F RNT 1 2 3332 49-0 01 CU P,GRI LLE 4 3 88 2-41 110-1 2 SCRE W , 6 X 3/ 4,PA.
TEST SET-UP A ND PROCEDURE Ge nera l F unc ti o n UUT = Unit Under Test 1) Connect a pai r of level input cables (RCA) f rom signal generator to eit her Right or Left Level input on UUT. LEVEL contr ol shoul d be f ull count ercl ock wise (MI N). Make sure the LF E/Norm al sw i t ch is in the NO RMAL positi on.
& P10SW & P12SW 14 E250P/ P12SW subwoo fers.
JBL I n corporated 250 C ross ways Park D r. W oodbury, N e w Yor k 11797 (516) 496-3400 Serv ice Bu lletin Serv ice bul leti n # JBL2005- 01 Decem ber 2005 W a rranty l abor rate: M IN OR repair To: .
TECH TIPS Troubl esh ooting tips a nd s olu tion s to comm on ser v ice pr oblems For models: E150P,E 250P T I P# JBLT T 2003-04 Rev 2 P10S W, P12S W PB10,P B12 (Revision 2) * Su b ject: Replaci ng MO.
A. Power Amp Section Resistance Check Resistance from S+ (SPK O/P) to GND should be >1M Ω (NO LOAD) Resistance from V+ (C6 P+) to V- (C8 P-) gradually Fully CHARGED should read >10k Ω Resistance from V+ (C6 P+) to S+ (SPK O/P) should read >1M Ω Resistance from V- (C8 P-) to S+ (SPK O/P) should read >1M Ω 2.
- Voltage measurements OP AMP U2(1) U2(14) U2(8) U3(7) U3(1) U3(14) U3(8) U5(7) U5(1) SPEAKER O/P 306.9mV 461mV 460mV 658mV 628mV 598mV 2.326V 2.02V 3.57V 23.33V 2. High Level Input Sensitivity -Set up Turn level, X’OVER FREQ POT Fully CW and LFE switch off Set Generator at 1.
CAUTION : SPEAKER OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT TO GROUND. ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST BE FLOATING. ATTACH THE SCOPE PROBE TIP TO S - and REFERENCE LEAD TO S+.
20 E250P/ P12SW subwoo fers.
21 E250P/ P12SW subwoo fers.
22 E250P/ P12SW subwoo fers.
23 E250P/ P12SW subwoo fers.
E250P/P12SW (120v) Electrical Parts List Part Number Description Reference Designator Qty Resistors 020-220497-120 Carbon Film 2K2 1/4W J R11 1 021-100401-120 MOF Resistor 1K 1W J R103 1 021-120403-02.
Part Number Description Reference Designator Qty 024-470698-120 SMD Resistor 470K 1/8W J 0805 R70 1 024-470798-120 SMD Resistor 4M7 1/8W J 0805 R60 1 024-487498-100 SMD Resistor 4K87 1/8W F 0805 R51,5.
Part Number Description Reference Designator Qty 051-005600-100 PNP Transistor PN:MPSW56RLRA TO-92 (ON) Q3 1 051-222200-100 NPN Transistor PN:MPS2222ARLRA TO-92 Q21 1 051-290700-100 PNP Transistor PN:.
Part Number Description Reference Designator Qty 063-010012-000 Brckt for pwr transistor P/N:TRK-1 063-321100-001 E250P Faceplate 322x105.7x15mm BLK (94V0)ABS E250P 063-321101-000ZR P12SW Faceplate 322x105.7x15mm BLK (94V0)ABS P12SW 063-531808-000 Bucket 322x105.
OPAMP, QUAD TL074CDR U2, 3 OPAMP, DUAL TL072CDR SO-8, NJM4558M-TE3 U5, 6, 4 IR2111 HALF-BRIDGE DRIVER U7 2 Base 3 Collector 1 Emitter 1 2 3 2N5401 Q1 2 Base 3 Collector 1 Emitter 1 2 3 MPSW06RLRA, MPS.
SCHEMATICS NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND 29 E250P/ P12SW subwoo fers P12SW Value of C65 = 47uf See service bulle.
30 E250P/ P12SW subwoo fers NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND.
An important point after buying a device JBL E250P (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought JBL E250P yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data JBL E250P - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, JBL E250P you will learn all the available features of the product, as well as information on its operation. The information that you get JBL E250P will certainly help you make a decision on the purchase.
If you already are a holder of JBL E250P, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime JBL E250P.
However, one of the most important roles played by the user manual is to help in solving problems with JBL E250P. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device JBL E250P along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
