Service Manual
Contents
1. LFE VOLUME CTRL POLARITY NORMAL REVERSED LOW PASS SECTION 18 dB Octave SUBSONIC FILTER 12 dB Octavc 157 R33 R35 R38 R24 NOT USED 12 1K ue U3 B 100K M 5 e lt gt TU74c RS R29 i PHASE CTRL 18K SKA SWS 3 1 100K WRI R125 R126 R127 38 VIS A 6 8K 6 8K R21 zl 15 4 im sa C28 200uF 15 243K Otur amp lt z c16 5 U2 A xi I e 4 2 100p i eer t s DM dei c32 e 29 54 BP IP 215 VK on R20 R22 100K 13 Lyo C31 SA R23 VR2 A VR2 B 14 2 05 8 2 20K R42 20K Ras ST ye ew 47K R46 R47 100K 2 AUS 11 6 8K 47K 237K 6 8K 6 8K 5 AC120V 60Hz 15 1 TL072C R59 T N 3 3K v 018 019 CONN1 A2. OUT Nit Nit Voc 7 OUT2 OPAMP DUAL TLO72CDR 50 8 NJ M4558M TE3 U5 6 4 A OUTPUT V A INPUT B OUTPUT BEVEL A INPUT B INPUT INPUT 2111 HALF BRIDGE DRIVER U7 28 MOSFET IRF640 018 22 TIPSIC y H E250P P12SW subwoofers T 8 lt lt 15V SCHEMATICS m 15V FB1 85 jm uos 4 1 2 4 15V MOD GA c52 c42 c43 C44 C45 C53 dig 1uF 1uF 1uF 1uF 01uF 22uF 25V FMMT 5 6V 025 vane R109 R113 5 011 C46 c47 c48 c49 C51 tj cse VK 024 R S44 2 FMMT3904 PROT 1uF 1uF 1uF FB2 01ur 22 25 5 5 2 s lt 4 4 1 2 24 15V MOD 2 NV E R118 AKA a2 22K FMMT3906 lt res 52 013 va FMMT3904 2 7K lt aE E Jl 56
3. olONONR 6 m a E250P P12SW subwoofers UBL ko 5 sur J 19 o ar BE i T 72 gt 42 IN CIJ li C 09 P na i 5 c LI lt Ag ey Da cou 5 1993 Sop CI zz T Zi lt geza L 8 ss Joza CH 7 Ea a j i E riy 8 zou ores 2 n Cd zur J C Jezu su TI 9 3 62H L 919 612 815 2 eid L zo n 190 I Sr Pa u im LJ L A gt COS C 915 8 8 uol KE ee 10 CI LJ 0 Ies Seil EFO 7 90 Con 98 n t X 299 zo us a 8 8 og 68 J dc lt C 65 ut 8
4. o co w o 2 o c c 034 470415 301 Electrolytic Capacitor 4u7 50V M R 0511 P 5 034 470615 301 Electrolytic Capacitor 470uF 16V M R 0812 P 5 038 100363 300 0u1 100V J 038 150393 300 0u15 63V J 25 038 330393 300 0u33 63V J 3 039 100384 100 Safety Capacitor HQX0 1K275VACx2 18x6x12mm 1 051 000600 100 NPN Transistor PN MPSWO6RLRA 92 ON 051 003100 000 NPN Transistor PN TIP 31C TO 220 MOSPEC 25 o N N N N N w N o Capacitors Semiconductors JB E250P P12SW subwoofers Part Number Description 2 2 D Q 2 Qty 051 005600 100 PNP Transistor l l PN MPSW56RLRA TO 92 ON 051 222200 100 PN MPS2222ARLRA TO 92 051 290700 100 PN MPS2907A RLRA TO 92 051 540101 000 2 5401 92 051 555100 000 PN 2N5551 TO 92 051 640001 000 PN IRF640N TO 220 IR 052 400080 000 PN RS804 400V 8A 053 211100 000 PN IR2111 Half Bridge Driver 054 000100 100 PN ES1D 200V 1A 054 001002 100 PN BZX84C10 10V SOT 23 Q21 Q19 23 O N UJ N 35 D6 7 9 U5 6 U2 3 054 001501 100 PN BZX84C15 15V SOT 23 054 007200 100 PN TLO72CDR SO 8 054 007400 100 PN TLO74CDR TI 054 011400 100 PN DTC114TKA SMT3 054 033904 100 PN MMBT3904LT1 SOT23 054 033906 100 PN MMBT3906LT1 SOT2
5. J eso sr 9 E 12 5 868 1168 R84 Ung E Co 263 C Josy Im g mm sey z a 968 ARTT su A eu 1189 m 8 E ped 2 sor HB rp E 17 2 8125 x 3 amp 2 ar 2 509 Jat 3 rb 8 PEST E og lg a I 2 St oz o gw r 3s o XCI C 299 sity 5 gra a TEC N 2 2 fae 9 figa SQ 94y oat J 24 viua 2 I 3 zur BS E oy eur J r3 2 veal sot Ieo 2 gar J Jer boil eio 70 1 10 mam 23 I LILI LI r 1 US LU 988 Lj NET 338228 o zu dd 53955 9 23 JB E250P P12SW subwoofers E250P P12SW 120v Electrical Parts List 5500 p Ex eference Designator i 020 220497 120 021 120403 020 021 120405 020 021 220202 120 R10 022 500003 020 R104 024 000098 120 R125 126 024 100298 120 881 82 024 100398 120 024 100498 120 024 100598 120 A A N a to a N RN A N N w A a gt N 024 100698 120 024 110598 100 024 120698 120 024 121598 100 024 137698 100 A Co N N N N 024 150498 120 024 180598 120 024 187698 100 024 200598 120 024 220398 120 024 220498 121 R1 87 61 024 220598 120 R118 024 220798 120 880 121 024 237598 120 SMD Resistor 23K7
6. 014 R107 FMMT3904 E E 015 R93 R92 R89 R88 FA SW FMMT3806 3 9K 1K 10K 10K C77 c58 15VSW 01 02 c57 T 0 047uF Ss Ri RLS4148 1uF 100pF 1 R106 56pF 543555 017 68 set 10 215551 Ix 15V MOD 2 c62 016 198 2 1 x R81 E MPSWO6 u7 ci Rit 0 047uF ve 33uF 25V s 56pF 3 5 8 1 2 2K 1 4W ie ae Mc ml amp RLS4148 L1UF psev 5 i Sipe L83 a19 FED 1 5 20K 1K 11K 9127792 212907 8 R79 Y aso z PRE O 2174 Fen 255 15 2 IMT5401 des St 3K 1K R83 R84 8 Y rm Y C54 z a VS 4 o 0 FF 1K 1uF 3 QD 10K 4 10911 3 uH 4 3 R82 021 032 1 AM R85 C64 R86 4 2N2222 amp ui 19 855 47 47K Lo RLS4148 7 5 3 5 100uF 25V 2 5 55 SS 1uF 10 034 H s 8 aoe SPKR OUT RLS4148 a bi 15V MOD v 5 2 H ers 47 1 022 10779 023 IRF640 R104 s 2N2907 4 4 W 4 8 05R 3W VN JBL Model no 250 120 Sch name POWER AMP PCB Issue no 29 Date 2003 02 25 Sheet Rev P1A Author VITA
7. 250P P12SW subwoofers DETAILED TROUBLESHOOTING CONT D 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 628 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 3V 50Hz Signal to High level input Voltage measurements 15 3V at speaker output 3 Low Pass Set up Voltage measurement Set Generator at 200 mV 100Hz Signal to Line level input Measure voltage at S speaker output X OVER FREQ Settin Output CW 14 03V CCW 4 8V 4 LFE Set Set Generator at 200mV 200Hz Signal to Line level input Measure voltage at S speaker output LFE switch Setting Output Normal 6V LFE 18 32V See flow chart next page for diagnostics E250P P12SW subwoofers DETAILED TROUBLESHOOTING CONT D FLOW CHART 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 TO S and REFERENCE LEAD S START Resistance check no load between V V V O P V O P and O P to GND 15 gt 10K Replace 018 022 Power up with no signal input LED RED no Discharge C37
8. Check fuse transformer L4 yes rectifier C6 and C8 Check Q4 E TO V 0V D C Check MUTE 8V and Q24 Q25 Q26 yes Use scope to check switching frequency U6 7 100KHz 10 24Vp p CLASS D AMP OK END A 10mV signal may need from the input to trigger the Switch turn on Check 15V MOD 15V voltage at U 6 8 U6 4 Check 2 45 C50 C60 C63 R81 R82 I P 10mv 50HZ Check 15V SW Q4 E TO V Check MUTE 12 9V And Q24 Q25 Q26 Check U7 1 58 3V Check U7 Q16 Q17 020 021 887 D26 D35 C64 Use scope to check O P U7 6 and GND 143Vp p square wave shown Check L2 L3 C71 C72 73 74 19 E250P P12SW subwoofers 30IS 1IN3NOdWOO 2184 0184 200 002102 510 NOISIASY 89 8 2 CAUTION For CONTINUED PROTECTION AGAINST RISK OF FIRE REPLACE i WITH SAME TYPE OF FUSE ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE F1T1 25A 250V LI jJ C39 ZMS LYENOO C23 C25 49 LNNO9 di d8 40 48 SNOLATS 20 gt n o o z er tet 8 i ogogo
9. JBL Models Northridge E Series E250P Performance Series 125 Powered Subwoofers Service Manual JBL Consumer Products 250 Crossways Park Dr Woodbury New York 11797 Rev3 4 2006 CONTENTS BASIC SPECIFICATIONS 1 SAFETY INFORMATION 2 E250P PACKING u u basate var tian 3 ais E e dC 4 DETAILED SPECIFICATIONS 5 CONNECTIONS 6 OPERATION 9 BASIC 10 E250P EXPLODED VIEW PARTS LIST 11 P12SW EXPLODED VIEW PARTS LIST 12 TEST SET UP AND PROCEDURE 13 AMPLIFIER BLOCK DIAGRAVM 14 E250P BULLETIN JBL2005 01 15 E250P P12SW TECH JBLTT2003 04 16 DETAILED TROUBLESHOOTING T7 P C B DRAWINGS 20 ELECTRICAL PARTS LIST 24 IC TRANSISTOR PINOUTS 28 SCHEMATICS fret dida 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
10. 1 8W F 0805 R 024 243698 100 SMD Resistor 243K 1 8W F 0805 R R R R R R R67 68 R R R 024 270498 120 873 64 024 300398 120 024 300598 120 024 330498 120 024 330598 120 84 5 024 332498 100 R26 27 R R D A AN N a 024 360498 120 024 390498 120 024 390598 120 024 430498 100 024 453598 100 62 98 39 38 32 29 45 94 48 36 55 56 28 93 77 78 30 R R R R R 024470208 120 SMDResistr 78 1 8w 30805 R101 02 024 470398 120 024470498 120 SMD 4K7 1 8WJ0805 88586 024 470598 120 7 49 24 i lt Part Number 2 A N A o x E250P P12SW subwoofers JB Part Number Description Qty 2 2 Q 2 024 470698 120 024 470798 120 SMD Resistor 4M7 1 8W J 0805 024 487498 100 SMD Resistor 4K87 1 8W F 0805 SMD Resistor 470K 1 8W J 0805 prr SMD Resistor 70 R51 53 57 R122 R16 18 024 510398 120 510R 1 8W J 0805 024 560598 120 56K 1 8W J 0805 024 620398 100 620R 1 8W F 0805 024 680498 120 6K8 1 8W J 0805 024 680598 120 68K 1 8W J 0805 024 820598 120 82K 1 8W J 0805 2 TL O Ke B o A N u 025 010300 000 TSE 103 K L 50mm 026 200595 269 Pot 20K PN RD163121R03D 20KBXx2 EJ 026 500495 252 Level Pot 5K PN RK163111R52B 5KA EJ 5 a
11. Connections Use this installation method only with an analog receiver processor that does not have digital processing or bass management and also does not have a subwoofer output or a volume controlled preamp line level output Connect the speaker wires for both your main left and right speakers and for the sub woofer to the same speaker terminals on your receiver or amplifier The wires may be joined by twisting together the bare ends of the two leads that will be connected to each terminal on the receiver amplifier as shown in the diagram This procedure should be done only four times involving a total of eight bare wire ends and only for those wire ends that are being con nected to the terminals on your receiver amplifier It is important that you avoid join ing any other wires Do not twist together wire ends that are being inserted into terminals on any speaker or on the subwoofer Do not twist together wire ends that will be used for any speakers other than the front left and right speakers or the subwoofer Refer to the connection dia gram for guidance Twist together the 4 leads at one end of the speaker wires that you have designated for the left front speaker and for To 4 terminal on left speaker To terminal of left input on subwoofer the left high level inputs on the subwoofer Insert the joined twisted wires into the left front terminal on your receive
12. Input L R LFE n a Nominal Filters LP filter 4th order fixed 2nd order variable 2nd order fix 24 db Octave Subsonic filter HPF 3rd Ord LFE Low pass 2nd order 200 gt LP lt 1K LFE input driven only Speaker input driven Speaker out HP speaker out connector 200 loaded with 4 Ohms Applies only to 230V Model Note 120V Models do not Speaker input driven Speaker out have speaker output 100 Hz 10 loaded with 8 Ohms Applies only to 230V Model a i Dn DRM R THD at Max Output Power Maximum Output Power Maximum THD as a result of limiting Features Volume pot Taper lin log LOG functional Phase switch 0 180 deg functional LP Filter defeat switch YES functional Disables LP filter intended for LFE Line In L R amp LFE YES functional Dual RCA jack Spkr Hi Level In YES unctional Binding post connector L amp R i 5 ATO Input test frequency 50 Hz unctiona ATO Level Speaker in 50 mV unctiona Maximum acceptable level ATO Turn on time 5 ms unctional input signal applied Auto Mute Turn OFF Time 15 minutes 15 removed Minutes 3 Sec 4 5 ATO Transient mV peak n a 9 Speaker Outputs 5 E250P P12SW subwoofers QA Test Parameter Specification Limits Conditions Notes Turn on Transient 50 2v pp Turn off Transient 50 mV peak Speak
13. 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 Ib 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 1 E250P P12SW subwoofers SAFETY INFORMATION Warning Any person performing service of this unit will be exposed List of Safety Components Requiring Exact Replacements to hazardous voltages and the risk of electric shock It is assumed that any person who removes the amplifier from this cabinet has been properly trained in protecting against avoidable injury and shock Therefore any service procedures are to be performed by qualified service personal ONLY Caution Early revisions of the unit did not have a power switch Hazardous voltages are resent within the unit whenever it is plugged in Before amplifier is plugged in be sure its rated voltage corresponds to the voltage of the AC power source to be used Incorrect voltage could cause damage to the amp
14. 0 VAC T1 25A 250V Ti 14 Dwg No 1 Edition Sheet W 01 OF 7 1 3 jipami 6 7 8 E250P subwoofer JBL Service Bulletin Service bulletin JBL2005 01 December 2005 Warranty labor rate MINOR repair To All JBL Service Centers Model E150P E250P Subwoofers Subject Chirp Noise on Power Up In the event you receive E150P or E250P with the complaint the subwoofer make a slight chirp noise when it becomes active from the stand by mode perform the following modification Synopsis Change C65 PE capacitor from 470uf to 47 1 1 Remove the amplifer from the enclosure 2 Remove the cover 3 Change C65 Electrolytic capacitor from 470uf 16V to 47uf 16V JBL part 034 470515 200 Observe polarity 4 Replace cover replace amplifier in enclosure test subwoofer FOR COVER REMOVAL F1T1 25A 250V FUSIBLE DE RECHANGE DE MEME TYPE i P N 015 201200 092 REVISION 0 15 JBL Incorporated 250 Crossways Park Dr Woodbury New York 11797 516 496 3400 E250P P12SW subwoofers TECH TIPS Troubleshooting tips and solutions to common service problems For models E150P E250P JBLTT2003 04 Rev2 P10SW P12SW PB10 PB12 Revision 2 Subject Replacing MOSFETS Q18 Q22 In the event you need to replace MOSFET transistors Q18 or Q22 as part of a repair it is important to use ONLY e JBL part 051 640001 000 e Or JBL part
15. 001 P12SW Outer Carton 1 3 351252 001 Packing Foam Top 1 4 351252 002 Packing Foam Bottom 1 5 33838 1 001 Warranty Card 1 6 352024 003 Front Grille 1 E250P P12SW subwoofers Hi Lo Line US 120vac 60Hz Yes 120 Vrms Normal Operation EU 230vac 50 60Hz Yes 230 Vrms Normal operation MOMS required QA Test Specification Limits Conditions Type Class AB D other n a n a Load Impedance speaker Ohms n a Nominal Rated Output Power 120VAG Watts 140 Domestic version only 120 VAC 60 Hz Rated Output Power 230VAG Watts 130 EU Version only 230 VAC 50 Hz Average RMS power 3 20 Cycles 50 Hz Driven AVG RMS Dynamic Power 6dB above its input sensitivity sensitivity THD Rated Power 0 3 22k filter 145 Watts DC Offset 10 mV DC 30 Speaker Outputs Damping factor gt 50 DF 35 Measured at amplifier board THD lt 0 1 96 50 Hz 5 Hz 50 L amp R 240 mVrms 2dB To 150 Watts Single input driven Speaker Hi Level Input 24 Vrms 2dB To 150 Watts Single input driven Eruwmmnvrrrr 90 dBA 70 relative to rated power SNR unweighted 85 dBr 70 relative to rated power SNR rel 1W unweighted 6 d 60 relative to 1W Output Residual Noise Floor Volume max w A P Swept Bandpass Measurement Line Line level inputs must be terminated using Residual Noise Floor 1 5 5 2 freq harmonics BW 20 Khz Input Impedance Line
16. 13 6 7 8 RevNo Revision note Date Signature Checked E250P P12SW subwoofers A SPEAKER LEVEL PHASE CTRL INPUT SWITCH S _ VOLUME CTRL 7 DIF AMP SUMMINGAMP in HPF HPF LPF LPF 4 gt gt Variable P B 18dB Octave 12dB Octave 12dB Octave 12dB Octave gt I LFE Line Level Input LIMITER LPF SUMMI NG DC OFFSET eo J PROTECTION NORMAL SIGNAL SENSE C THERMAL PROTECTION A MUTE ATO CURRENT SIGNAL SENEING PROTECTION Y A MUTE D FUSE LINEAR POWER SUPPLY TO 6 5 d CLASS D S x c gt AMPLIFIER OUTPUT RELAY 4 OHMS EXTERNAL LED INDICATORS 15V SW CONTROLLED gt REGULATOR E gt gt MUTE FUSE RATING E150P amp P10SW L 120 VAC T1 25A 250V 230 VAC T0 8A 250V Designed by 251 Checked by E T Approved by 0 4 Model No Issue No r X X E250P amp P12SW Date Elyt one No 376 120 VAC T2A 250V E150P 250P 2003 08 08 F Title IW 23
17. 16 Rev P1A Author wA
18. 3 054 045580 100 PN NJM4558M TE3 DMP 8 054 050601 100 PN BZX84C5V6 5 6V SOT 23 054 414803 100 PN LL4148 Wishay 054 540100 100 PN MMBT5401 LT1 SOT 23 054 555100 100 PN MMBT5551 LT1 050 505200 001 4 142 4 9 7 tes jM 1935 461 29 Q25 LED PN LT 2402 21 RES i O 1 065 050400 000 3 5 BLK F32 125 C 065 100200 000 ULSleeve 2 5 F322 5 blk 125 C 082 022640 000 L 400mm blk wht 2P Hsing 5TT 091 000182 000 PN LED5 2A 044 100100 000 PN 321611 600R 100MHz 1206 041 115001 000 7 10911 042 010053 003 10615 4 043 300101 000 30uH YT 10033 043 324300 000 324uH YT 10778 043 560200 000 56uH YT 10779 043 700101 000 70uH YT 10682 008 061215 000 12x15 t 5mm CR 008 062002 002 L 32 200x20mm t 5mm PORON 008 062002 012 200x20mm t 2mm CR4305 008 063208 000 321x8 t 1mm CR 008 069304 000 93x4 t 1mm CR 061 020000 000 20 15 UL94V 0 BLK 061 314002 000 Strain Relief P N SB4F 2 061 400014 000 ID 6 2 OD 11 5 t 2mm blk 061 700044 000 13x18mm TO 220 0 C AN 1 4 Q2 0 jo No 5 e IN w P3 o w J 9 N Miscellaneous 26 E250P P12SW subwoofers Part Number Description Reference Designator Q 063 010012 000 P N TRK 1 Brckt for pwr transistor 063 321 100 001 322x105 7x15mm BLK 94 0
19. 338 128 002 ASY WOOFER 12 DCR 4 8 Q 1 13 336799 001 ASY PORT TUBE 1 14 351307 001 GRILLE BLK FRNT 1 15 333249 003 CUP GRILLE TITANIUM BEECH MODEL CHERRY 4 MODEL 333249 001 CUP GRILLE BLACK MODEL 4 16 351243 001 RING TRIM 12 E250P 1 17 903401 012 SCREW 6 X 3 4 PAN PH PB BLK ZINC LCS AMPLIFIER 10 11 JBL P12SW Exploded View Amplifier Not for Sale N Ref Part Number Description Qty 1 352024 003 ASY GRILLE BLK FRNT 1 2 333249 001 CUP GRILLE 4 3 882 41110 12 SCREW 6 X 3 4 PAN PH PB BLK ZINC LCS AMPLIFIER 10 4 903802 016 SCREW PB HXS 8x1 ZINC WOOFER 8 5 351 243 001 RING TRIM 12 1 6 338128 002 ASY WOOFER 12 DCR 4 80 1 7 336799 001 ASY PORT TUBE 1 8 336486 001 ASY FOOT PLSTC 4 9 883 31110 40 SCREW 8 X 2 1 2 TR PH PB BLK ZINC LCS FOOT 4 10 361872 001 JBL LOGO 1 E250P P12SW subwoofers TEST SET UP AND PROCEDURE VOLT METER 6V SIGNAL GENERATOR CROSSOVER Preauewcy gt E250P P12SW AMPUFIER SPEAKER LEVEL OUTPUT FROM AMPLIFIER General Function UUT Unit Under Test 1 Connect a pair of level input cables RCA from signal generator to either Right or Left Level input on UUT LEVEL control should be full counterclockwise MIN Make sure the LFE Normal switch is in the NORMAL position 2 Turn on generator adjust
20. 5 E250P 063 321101 000ZR 322x105 7x15mm BLK 94VO ABS P12SW 063 531808 000 322x105 7x146 5mm 94 071 100608 100 OD 8mm ID 3 2 t 1 red 071 100851 000 ID 5 1 OD 12 t 1m m 072 010007 000 SCJ 1020 2P G wht red 072 040039 000 205 t 0 8m m 205 072 040064 000 PC250 t 0 8 T250MA 072 040096 000 t 0 8mm 187 0 8 072 040169 000 2 PIN JS 1001 2 P 2 5mm 072 060170 000 W Accessory Parts 073 032315 601 Black Anodized 70x58x20mm 073 050001 000 P N CFFH1206 074 020018 000 PN RF1003 BB4 0 074 030002 000 PN L101 T2B4QE 074 300018 000 PN 943 1C 48D 082 022241 001 L 410mm blk wht 083 041802 009 SPT 2 T187 AC1 AC3 T1 T2 AC2 SW2 SWA 093 105202 300 FUSE 2A 250V 5 20mm 181 911600 161 Wire 16AWG UL1007 blk L 610mm 181 911655 135 green L 610mm 181 921600 000 1187 L 140mm 181 921699 000 1187 L 160mm 7 o gt lt 27 E250P P12SW subwoofers Semiconductor Pinout Diagrams 2N5401 Ql pum 3 Collector Base 1 lEmitter 3 MPSWOGRLRA MPSW56RLRAMPQ MPS2222ARLRA 2N2907A 2N5551 Q2 16 3 41 19 23 17 SS 3 Collector 1 Emitter 39041 50723 39061 50723 DTC114EK 5 54011 55511 Q11 14 13 5 8 9 6 10 12 15 7 20 24 26 25 1 Emitter 2 Base 3 Collector OPAMP QUAD TLO74CDR 02 3 OUT4 4 IN4 IN3 OUT3 to Nm p
21. FE106401110 Or only the brands International Rectifier or Fairchild Replace both Q18 and Q22 MOSFET s in the circuit even if only one seems to be damaged Do NOT mix amp match these components from different manufacturers or batches They should be identical Late version PB10 or PB12 subwoofers Revision 2 in the service manual can be identified by Amplifier serial number starts with Output transistors in the open on a large black heatsink Large plastic cup enclosing the rear of the amp assembly Main PCB bottom solder side contains all SMD devices E250P P12SW subwoofers DETAILED TROUBLESHOOTING A Power Amp Section Resistance from S SPK to GND should be gt 1M NO LOAD Resistance from V P to V C8 P gradually Fully CHARGED should read gt 10k Q U U UU Resistance from V C6 P to S SPK O P should read gt 1MQ Resistance from V C8 P to S SPK O P should read gt 1M Q 2 Power Up LED RED With a 5mV signal to Low level input LED should change to GREEN Voltage measurements DVM 3 D C Operation Voltage measurements DVM on CLASS D POWER AMP 4 Check Switching Frequency e Oscilloscope USE THE PROBE TIP TO U6 7 TO GND e Reading 100kHz 10 24Vp p B Pre Amp Section Line Level Input Sensitivity Set up Turn level XOVER FREQ POT Fully CW and LFE switch off Generator Set at 200mV 50Hz Signal to Line level input
22. RS 1 R52 4 R16 R17 RLS4148 RLS4148 INPUT O T c35 68 620 Lecz 1 10uF 25V MMBT3906 Q5 1 22 R51 MMBT3904 R54 ROCKER SW v m 4 87 R53 R60 487K 620 10K 15V 21 474 V V 220p 017 RLS4148 R63 19 R69 022 R71 REGULATOR 15V SW gt 15VSW 1 Die 64 6 RES B2K RLS4148 10K 15V asa 31C RLS41 2 7K C39 R76 FYNT3904 9 22uF 25N FMMT3904 z R124 1 ect R61 020 C12 s 2 2K N f guzie FMMT5401 f 4558 or HA RG MMBT3904 V 4 15 2 22 25 cit E R58 1uF 58 5 10K 059 NOS RLS4148 RLS4148 FAN 9 gt AC PRESENT SIGNAL E 100 CON3B1 R4 R66 33K 07 T D3 04 DTC114TK bak om V 1 55 8s RLS4148 RLS4148 ee e zo 3 R5 nim ORT 47uF 50V 33K act BICOLOR LED 2X gt gt gt Sw2 em 1UF 250eV BR1 SHUNT REG 2 FTT BL 1 3 EG C708 b andi AC2 V R6 MPSWe6 owe L 3 u 1 R E250P P12SW subwoofers 1U 275VAC 5 2 Yr 10616 2 x T2 gt i C6 c3 3 3K 5 04 Lcs gt 3306076067 Laur 2uF 25V Q 01uF 50V 2 250 c7 RB 15V C9 33000780V ZfE22uF 25V FT 0 01uF 50V 3 3K 4 4 12K SHUNT MPSW56 15v JBL Model E259P 12 V Sch n me PRE AMP PCB Issue no Date 2003 02 25 30 Sheet
23. e corresponding speaker terminals on your receiver or amplifier Make sure that you have configured your surround sound processor for Subwoofer On or LFE On The front center and surround speakers should be set to Small or Large depending on their size and frequency response Consult your receiver s or processor s owner s manual RECEIVER PREAMPLIFIER Subwoofer Output LFE LEVEL Max _ re NORMAL PHASE e 180 CROSSOVER FREQUENCY Si OS LEVEL e Max Min LFE NORMAL PHASE 180 5 150Hz R CROSSOVER FREQUENCY E250P P12SW subwoofers OPERATION Power When the unit is plugged in and the power switch is on and no signal is received the LED on the top of the uni 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 Due to J BLs unique high output high efficiency amplifier design power con E250P LED is on the amplifier faceplate sumption is minimal when the subwoofer is not receiving a signal Of course the sub woofer can be turned off whenever desired if you do not wish to leave it in auto standby mode Level Control The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system Pr
24. er Outputs AC Line cycled from OFF to ON 2v pp Speaker Outputs AC Line cycled from ON to OFF 65 64 P Nominal Line voltage 120 VAC Stand by Input Power nom line voltage Maximum allowable input power under nominal Input voltage and frequency HOT or COLD operation Power Cons rated power nom line voltage 150 Watts 5 6 Ohms nominal line voltage Proteins L Short Circuit Protection Thermal Protection functional DC Offset Protection 1 8 max unclipped Power at 1 06 times the input voltage DC present at Speaker Out leads Amplifier should resume operation after short YES functional Direct short at output circuit condition removal Temperature rise in accessible metal parts should not exceed 35K rise for domestic version or 30K rise for European versions refer to requirements sheet Design must insure no Offset at the speaker output under any operating condition including abnormal operation Line Fuse Rating USA Domestic Type T or Slo Blo 250 V Internal fuse with UL SEMKO rated holder EU Type T or Slo Blo 250 V Low Breaking capacity Internal fuse with UL SEMKO rated holder 4 ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE SPEAKER CONNECTION When we designed the E150P E250P P10SW and P12SW powered subwoofers our goal was to offer the user the best possible performance combined with the most flexible and complete insta
25. er with polarized plug UL approved wired with the hot side to fused side Use with factory replacement panel strain relief 70305 only Power Transformer Use only factory replacement BR1 Bridge diode Use only 052 400080 000 factory replacement 3300uF 80V electrolytic filter caps Be sure replacement part is at least the same working C6 8 voltage and capacitance 034 330780 300 rating Also the lead spacing is important Incorrect spacing may cause premature failure due to internal cabinet pressure and vibration Rear Amp Cover 063 531808 000 Use only factory replacement Inductor L1 Use only factory 043 560200 000 replacement Inductor L2 Use only factory 043 300101 000 replacement Inductor L3 Use only factory 043 700101 000 replacement Inductor L4 Use only factory 043 324300 000 replacement PT1 042 010053 003 UBL E250P Packaging Ref Part Number Description Qty 1 351249 002 MANUAL OWNER E250P E250P 1 2 351249 001 CARTON MASTER E250P BEECH MODEL 1 351249 003 CARTON MASTER E250P BLACK MODEL 1 350884 003 CARTON MASTER E250P CHERRY MODEL 1 3 351252 001 PAD END TOP E250P 1 4 351252 002 PAD END BOT E250P 1 5 338381 001 WARRANTY CARD 1 5YR JBL 1 14 352024 001 ASY GRILLE BLK FRNT 1 3 UBL P12SW Packaging Ref Part Number Description Qty 1 361803 001 P12SW Owner s Manual 1 2 361813
26. lifier when the AC power cord is plugged in Do not exceed rated voltage by more than 10 operation below 90 of rated voltage will cause poor performance or may shut the unit off Leakage Resistance Check Before returning the unit to the customer perform a leakage or resistance test as follows Leakage Current Note there is no power switch on early revisions of this unit When the power plug is plugged in the unit is live Connect the unit to its rated power source Using an ammeter measure the current between the neutral side of the AC supply and chassis ground of the unit under test If leakage current exceeds 0 5mA the unit is defective Reverse the polarity of the AC supply and repeat Resistance Measure the resistance from either side of the line cord to chassis ground If it is less than 500k ohms the unit is defective WARNING DO NOT return the unit to the customer if it fails one of these tests until the problem is located and corrected Critical Components All components identified with the IEC symbol in the parts list and schematic diagram designate components in which safety can be of special significance when replacing identified with Use only the replacement parts designated in the parts list or parts with the same rating of resistance wattage or voltage Part Number Description Designator s F1 Line Fuse Slo Blo 2 0 093 105202 300 5 20 083 041802 009 250V UL approved SPT 2 or bett
27. llation options Please look over the following three examples to determine which description best matches your system and follow the corresponding hookup instructions To use the binding post speaker terminals with bare wire unscrew the collar until the hole through the center post is visible under the collar Insert the bare end of the wire through the hole in the post then screw the collar back down until the connection is tight The holes in the center of the collars are intended for banana type connectors Speakers and electronics terminals have corresponding positive and negative terminals It is important to connect both speakers identically positive on the speaker to positive on the amplifier and negative on the speaker to negative on the amplifier Wiring out of phase results in thin sound weak bass and a poor stereo image NOTE The speaker level connection method described on the next page is not a preferred connection and should only be resorted to if your receiver processor does not have a line level or subwoofer output The customer is responsible for proper connections and any damage to JBL or other equipment due to improper connections will not be covered by your JBL warranty Consult with your JBL dealer or an audio installation expert if you have any questions about how to connect your subwoofer using the speaker level inputs E250P P12SW subwoofers Analog Receiver Processor Speaker Level
28. mp S 49 N o lt R1 031 100244 100 0u01 50V K 0805 X7R o O O A Ceramic Capacitor S 031 100343 100 SMD Capacitor 100pF 50V J 0805 NPO 031 100344 100 SMD Capacitor 0u1 50V 0805 X7R C3 7 031 100384 100R SMD Capacitor 0u1 250V K 1206 X7R 031 220344 100 SMD Capacitor 220pF 50V J 0805 NPO C40 34 C62 59 C57 61 56 C70 C70B 73 72 35 64 031 330444 300 SMD Capacitor 3300pF 50V 0805 X7R 031 470244 102 SMD Capacitor 0u047 50V 0805 X7R 031 560243 100 SMD Capacitor 56pF 50V J 0805 NPO 031 560343 102 SMD Capacitor 560pF 50V J 0805 NPO 032 100484 200 Mylar Capacitor 1uF 250V K P 15 N N A N AR gt T AB o aj i Ol N N N N O 033 470444 270 NPE Capacitor 4u7 50V K10 R 8x13 SBE 033 680464 270 NPE Capacitor 6u8 100V K10 R 1020 GNE 034 100525 300 10uF 25V M R 0511 P 5 034 100625 300 100uF 25V M R 6 3x11 P 5 034 220525 301 22uF 25V M R 5x11 P 5 034 220615 301 R Electrolytic Capacitor 220uF 16V M R 0611 P 5 ws 2 7 O 034 330525 300 Electrolytic Capacitor 33uF 25V M R 0511 P 5 034 330615 300 Electrolytic Capacitor 330uF 16V M R 0812 P 5 C12 78 C6 8 034 330780 300 Electrolytic Capacitor 3300 80 M R 22x48 N
29. ntil you begin to hear the desired amount of bass 10 If at some time in the future you happen to rearrange your listening room and move your Speakers you should experi ment with the phase switch in both positions and leave it in the position that maximizes bass performance If you used the line level inputs and there is no sound from the subw oofer 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 Check all wires and connections between the receiver amplifier and the subwoofer M ake sure all wires are connected M ake sure none of the wires are frayed cut or punctured or touching each other Review proper operation of your receiver amplifier Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass Make sure that you have configured your receiver processor so that the sub woofer LFE output is on JBL E250P Exploded View eX 10 Amplifier Not for Sale D T Vy 27 Ref Part Number Description Qty 6 351348 001 PLATE LED LOGO E250P 1 7 338125 002 ASY LED E250P E250P 1 8 336486 001 ASY FOOT PLSTC E250P 4 9 763 31110 40 SCREW 8 X 2 1 2 TR PH PB BLK ZINC LCS FOOT 4 10 908302 012 SCREW PB HXS 6x 75 ZINC LOGO PLATE 4 11 903802 016 SCREW PB HXS 8x1 ZINC WOOFER 8 12
30. oper level adjustment depends on sev eral variables such as room Crossover Adjustments size subwoofer placement type of main speakers and position Adjust the subwoofer level so that the volume of the bass information is pleasing to you The Crossover Frequency Control determines the highest frequency at which the sub woofer reproduces sounds If your main speakers can com fortably reproduce some low frequency sounds set this control to a lower frequency setting between 50Hz and 100Hz This will concentrate the subwoofer s efforts on the ultradeep bass sounds required by today s films and music If you are using smaller bookshelf speakers that do not extend to the lower bass fre quencies set the low pass crossover control to a higher setting between 120Hz and 150Hz This control is not used when the LFE switch is in the LFE position E250P P12SW subwoofers Phase Control 0 Zee Phase The Phase Control determines whether the subwoofer s pis ton like action moves in and outin phase with the main speakers or opposite the main speakers There is no correct or incorrect setting Proper phase adjustment depends on several variables such as subwoofer placement and listener position Adjust the phase switch to maximize bass output at the listening position Remember every system room and listener is different There are no right or wrong settings thi
31. r amplifier Connect the free end of the lead for the left front speaker to the ter minal on the back of the speaker Connect the free end ofthe lead for the left input on the subwoofer to the left binding post terminal Repeat this process for the connections for the left front Left Front Center speaker and left input on the subwoofer and then for the 4 and connections for the right front speaker and right high level inputs on the sub woofer Connect your receiver or amplifier s center and sur round speaker terminals to the corresponding terminals on the back of your center and surround speakers Right Front ERU To front left lt H terminal on receiver amplifier 250P P12SW subwoofers Analog Receiver Processor Line Level Connections Use this installation method with an analog receiver processor that does not have digital processing or bass management and that is equipped with a full range subwoofer output or a volume controlled preamp line level output Use RCA type interconnect cables to connect the line level subwoofer outputs on your receiver or amplifier to the line level inputs on the subwoofer IM PORTANT M ake sure that the LFE toggle switch on the subwoofer is in the Normal position Do not use the LFE position with Dolby Pro Logic only processors Note If your receiver or amplifier has only one
32. s switch offers the added flexibility to adjust your subwoofer for optimum per formance for your specific listening conditions without having to move your speakers 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 e Check that the powered subwoofer is plugged into an active electrical outlet and is switched on Check all wires and connec tions between the receiver amplifier and the speakers Make sure all wires are con nected M ake sure none of the speaker wires are frayed cutor punctured or touching each other except for the wires for the front left and right speakers which may be joined with the wires for the subwoofer atthe receiver amplifier end only if you are using the speaker level connections Review proper operation of your receiver amplifier If there is low or no bass output Make sure the connections to the left and right Speaker Inputs have the correct polarity 4 and Make sure that the sub woofer is plugged into an active electrical outlet and switched on Adjust the crossover point Flip the Phase Control switch to the opposite position f you are using a Dolby Digital DTS receiver or processor make sure that the subwoofer adjustments on the receiver processor are set up correctly Slowly turn the Level Control clockwise u
33. sub woofer output jack then you may connect the subwoofer output on your receiver pre amplifier to either the left or right line level input on the subwoofer It makes no differ ence which jack you choose Connect each speaker to the corresponding speaker terminals on your receiver or amplifier Make sure your receiver or processor is config ured so that the sub woofer is On Note for advanced users If your receiver processor has a built in low pass crossover filter for the subwoofer output then the LFE switch should be set to the LFE position to bypass the subwoofer s internal crossover RECEIVER Subwoofer Out 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 IM PORTANT M ake sure that the LFE toggle switch on the subwoofer is in the LFE position Use the line level input jacks for the Low Frequency Effects channel Connectthese jacks to the LFE output or subwoofer output on your receiver or amplifier Note If your receiver or ampli fier has only one subwoofer output jack you may connect the subwoofer output on your receiver preamplifier to either the left or right line level input on the subwoofer It makes difference which jack you choose Connect each speaker to th
34. to 100mV 50Hz 3 Plug in UUT Turn Main Power switch ON LED may be either Red or Green Turn LEVEL control full clockwise MAX Low Pass control should be set fully clockwise 150Hz 4 LED should turn Green immediately bass response should be heard and felt from port tube opening 5 Turn off generator turn LEVEL control fully counterclockwise MIN disconnect RCA cables 6 Connect one pair of speaker cables to either high level input terminal on UUT Cables should be connected to an integrated amplifier fed by the signal generator 7 Turn on generator and adjust so that speaker level output is 1 0V 50Hz Turn LEVEL control full clockwise MAX 8 Green LED should light immediate bass response should be heard and felt from the port tube opening Sweep Function 1 Follow steps 1 4 above using a sweep generator as a signal source 2 Sweep generator from 20Hz to 300Hz Listen to the cabinet and drivers for any rattles clicks buzzes or any other noises If any unusual noises are heard remove driver and test Driver Function 1 Remove driver from cabinet detach and wire clips 2 Check DC resistance of driver it should be 4 8 ohms 3 Connect a pair of speaker cables to driver terminals Cables should be connected to an integrated amplifier fed by a signal generator and adjust so that speaker level output is 5 0V 4 Sweep generator from 20Hz to 1kHz Listen to driver for any rubbing buzzing or other unusual noises
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