Jbl-L8400P actsub电路图.pdf

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1、 Studio L Series L8400P L8400P Amplifier/Subwoofer SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev1 3/2006 RadioFans.CN 收音机爱 好者资料库 - CONTENTS - BASIC SPECIFICATIONS.1 PACKAGING.2 DETAILED SPECIFICATIONS.3 CONNECTIONS. 5 OPERATION .7 BASIC TROUBLESHOOTING.8 EX

2、PLODED VIEW.9 120V BLOCK DIAGRAM.10 PCB DRAWINGS.11 120V ELECTRICAL PARTS LIST .15 INTEGRATED CIRCUIT/TRANSISTOR PINOUTS.19 120V SCHEMATICS. 20 L8400P BASIC SPECIFICATIONS Amplifier Power (RMS) 600 Watts Peak Dynamic Power * 1200 Watts Frequency Response (3dB) 22Hz Low-pass crossover frequency Low-P

3、ass Crossover Frequencies 50Hz 150Hz, Continuously adjustable Low-Frequency Transducer 12 (300mm) PolyPlas cone Baffle Low diffraction, IsoPower Enclosure Sealed Inputs Gold-plated 5-way binding-post speaker-level; Left and right line-level, switchable to LFE Outputs 150Hz when using speaker-level c

4、onnection Gold-plated 5-way binding-posts Dimensions (H x W x D) 16-1/2 (15-1/2 without feet) x 15-1/2 x 15-1/2 (419mm 394mm without feet x 394mm x 394mm) Weight 58 lb (26.4kg) * The Peak Dynamic Power is measured by recording the highest peak-to-center voltage produced by the power amplifier with i

5、ts limiters disabled, across the output of a resistive load equal to minimum impedance of the transducer, using a 50Hz sine waveburst, 3 cycles on, 17 cycles off. Occasional refinements may be made to existing products without notice but will always meet or exceed original specifications unless othe

6、rwise stated L8400P L series 8400P L series 1 RadioFans.CN 收音机爱 好者资料库 ITEM NO.DESCRIPTIONQTY.PART NO. 1.Owners Manual1354038-001 2.Front Grille1353234-001 3.Warranty Card, JBL 5YR/1YR1338381-001 4.Kit, Spike Foot4354432-001 5.L8400P Outer Carton, Black1353588-001 L8400P Outer Carton, Beech1353588-00

7、2 L8400P Outer Carton, Cherry1353588-003 ITEM NO.DESCRIPTIONQTY.PART NO. 6.Pad, Foam, Top, Bottom L8400P2353592-001 7.Y-Adapter Cable1354058-001 8.Foot, Bump-On 3M, SJ57444330104-001 L8400P? Packaging 5 6 6 13478 2 2 RadioFans.CN 收音机爱 好者资料库 L8400P Powered Sub/ Plate Amp LINE VOLTAGEYes/NoHi/Lo LineN

8、om.UnitNotes US 120VAC/60HzYes108-132120VrmsNormal Operation EU 230VAC/50-60HzYes207-264230VrmsNormal operation, MOMS required ParameterSpec.Unit QA Test LimitsConditionsNotes Amp Section Type (Class AB, D, other)Dn/an/a Bridge type amplifier, None of the speaker terminals must be connected to syste

9、m GND at any time. Load Impedance (speaker)4Ohmsn/aNominal Rated Output Power450Watts3801 input drivenMeasuring 425 Watts Cold THD Rated Power0.5%122K filter THD 1 Watt0.1%0.222K filter Dynamic Power460Watts450 Power is the average measurement of the first four consecutive peaks of the burst signal

10、3/20 Cycles 50 Hz, burst test into 4 Ohms, input driven 6dB above its maximum sensitivity, volume level at Maximum. DC Offset80mV-DC100 Speaker Outputs Damping factor20DF15Measured at amplifier board Measured at the speaker cable. 200 Watts, measured at speaker output terminals located at the amp bo

11、ard. Input Sensitivity Input Frequency50Hz30Nominal Freq. Left or Right inputs 16.6mVrms2dBTo 1 Watt Single input driven, Ap Zo=600 Ohms, LP ON, Volume ctrl it doesnt matter which one you choose. IMPORTANT: Make sure that the LFE/Normal toggle switch is in the “LFE” position. This will bypass the su

12、b- woofers normal low-pass filter, reducing the possibility of signal degradation and more accurately reproducing the program materials. However, if your receiver is passing a full- range signal through its sub- woofer output, place the tog- gle switch in the “Normal” position, which will activate t

13、he low-pass filter and protect the subwoofer from possible damage. Connect this jack to the LFE output or subwoofer output on your receiver or amplifier. Connect each speaker to the corresponding speaker terminals on your receiver or amplifier. Make sure that you have con- figured your surround soun

14、d processor for “Subwoofer On.” Also, remember to configure your receiver for 5.1-, 6.1- or 7.1-channel operation as appropriate. DOLBY* DIGITAL OR DTS (OR OTHER DIGITAL SURROUND MODE) CONNECTION L8400P OM 6/8/05 4:10 PM Page 6 L8400P L series L8400P L series 5 5 DOLBY PRO LOGIC (NON-DIGITAL) SPEAKE

15、R LEVEL Use this installation method for Dolby Pro Logic applica- tions (not Dolby Digital, DTS or other digital processing), where the receiver/processor does not have a subwoofer output, or a volume-controlled preamp (line-) level output: Connect your receiver or amplifiers front left and right sp

16、eaker terminals to the left and right terminals on the subwoofer that are marked “Speaker Level In.” Connect the left and right terminals on the subwoofer that are marked “Speaker Level Out” to the corresponding terminals on the back of your front left and right speakers. Connect your receiver or am

17、plifiers center, surround and surround back speaker terminals to the corresponding terminals on the back of your center and surround speakers. L8400P OM 6/8/05 4:10 PM Page 7 L8400P L series L8400P L series 6 OPERATION Move the Master Power switch to the “On” position to use the L8400P subwoofer. If

18、 you will be away from home for an extended period of time, or if the subwoofer will not be used, switch the Master Power switch to the “Off” position. The subwoofer Level Control adjusts the volume of the subwoofer relative to the rest of the system. Proper level adjustment depends on sev- eral var

19、iables such as room 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. Crossover Adjustments The Crossover Frequency Control determines the highest frequency at which the subwoofer reproducessounds.

20、 If your main speakers can comfortably reproduce some low-frequency sounds, set this control to a lower frequency setting, between 50Hz and 100Hz. This will concentrate the subwoofers efforts on the ultradeep bass sounds required by todays films and music. If you are using smaller bookshelf speakers

21、 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. Level Control Power 6 L8400P OM 6/8/05 4:10 PM Page 8 L8400P L series L8400P L series 7 TROUBLE

22、SHOOTING 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. Check all wires and connec- tions be

23、tween the receiver/ amplifier and the speakers. Make sure all wires are con- nected. Make sure none of the speaker wires are frayed, cut or punctured, or touching each other. Review proper operation of your receiver/amplifier. If there is low (or no) bass output: Make sure the connections to the lef

24、t and right “Speaker Inputs” have the correct polarity (+ 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. If you are using a Dolby Digital/DTS receiver or processor,

25、 make sure that the subwoofer and bass manage- ment adjustments on the receiver/processor are set up correctly. Slowly turn the Level Control clockwise until you begin to hear the desired amount of bass. If you used the line-level inputs and there is no sound from the subwoofer: Check that the recei

26、ver/ 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. Make sure all wires are connected. Make sure none of the wires are frayed,

27、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. Phase Contro

28、l The Phase Control deter- mines whether the sub- woofers pistonlike action moves in and out in phase with the main speakers or opposite the main speakers. There is no correct or incor- rect setting. Proper phase adjustment depends on sev- eral variables such as sub- woofer placement and lis- tener

29、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; this switch offers the added flexibility to adjust your subwoofer for optimum per- formance for your specific listening c

30、onditions without having to move your speakers. 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. 7 L8400P OM 6/8/05 4:10 PM

31、Page 9 L8400P L series L8400P L series 8 ITEM NO.DESCRIPTIONQTY.PART NO. 1.Woofer Assembly 12 DCR=3.7 10%1353112-001 2.Front Grille1353234-001 3.Grille Cup, BLK4333249-001 Grille Cup, BE & CH4333249-003 4.LED Wire Assembly1354288-001 5.Plate LED1353356-001 6.Gasket, Plate LED1353589-001 ITEM NO.DESC

32、RIPTIONQTY.PART NO. 7.Assembly, Foot4353354-001 8.Assembly, Logo1353284-001 9.Screw (Foot) #8 X 1, PB, TRPH CR BLK8903101-016 10.Screw (Woofer) #8 X 3/4, PB, HXS, ZINC8903802-012 11.Screw (Amplifier) #8 X 1, PPH, PB, BLK12900101-016 12.Screw (LED Plate) #6 X 3/4, PB, HXS, ZINC 4908302-012 L8400P? Ex

33、ploded View 11 5 8 7 2 9 1 12 6 3 10 4 9 L8400P BLOCK DIAGRAM L8400P L series 8400P L series 10 L8400P L series 8400P L series 11 NOTE: DESIGNATORS ARE WRONG (SWAPPED) FOR L8 AND L11. BOTH DRAWING AND ACTUAL PCB ON MODEL FIFTEEN L8400P L series 8400P L series 12 L8400P L series 8400P L series 13 L84

34、00P L series 8400P L series 14 L8400P (120v) ELECTRICAL PARTS LIST Part NumberDescriptionReference DesignatorQty Main Amp/Supply PCB Resistors 024-000098-120 GS SMD resistor 0R 1/8W J 0805 (R8)R81 024-100498-120 SMD resistor 1K 1/8W J 0805 (R110)R1101 024-100598-120 GS SMD resistor 10K 1/8W J 0805 (

35、) R5,7,16,118,121,122,125,1,126,128,138,165,17 0,168,139 15 024-100698-120 GS SMD resistor 100K 1/8W J 0805 (R15,120)R15,1202 024-110598-120 SMD resistor 11K 1/8W J 0805 R187,188,190,1914 024-130498-100 SMD resistor1K3 1/8W F 0805 R189,1922 024-150598-120 SMD resistor 15K 1/8W J 0805 (R20,21)R20,212

36、 024-160598-100 SMD resistor 16K 1/8W F 0805 (R13,13B)R13,13B2 024-220298-120 SMD resistor 22R 1/8W J 0805 (R28,29)R28,292 024-220498-120 SMD resistor 2K2 1/4W J 1206 (R119)R1191 024-220498-121 SMD resistor 2K2 1/8W J 0805 (R17,31)R17,312 024-220598-120 SMD resistor 22K 1/8W J 0805 (R127)R1271 024-3

37、30498-120 SMD resistor 3K3 1/8W J 0805 (R77,79,22,)R77,79,223 024-330598-120 SMD resistor 33K 1/8W J 0805 (R4,6,14,60,60B)R4,6,14,60,60B5 024-412498-100 SMD resistor 4K12 1/8W F 0805 (R63)R631 024-470298-120 GS SMD 47R 1/8W J 0805 (R24-27)R24-274 024-470398-120 GS SMD resistor 470R 1/8W J 0805 R145,

38、155,177,1864 024-470598-120 GS SMD resistor 47K 1/8W J 0805 (R3,171)R3,1712 024-510498-120 SMD resistor 5K1 1/8W J 0805 R48A,48B,48C,48D,48E5 024-560498-120 GS SMD resistor 5K6 1/8W J 0805 R30,1692 024-680498-120 GS SMD resistor 6K8 1/8W J 0805 (R23)R231 021-100401-020 MOF Resistor 1K 1W J FK TYPE R

39、1731 021-560305-020 MOF resistor 560R 5WS J 8x25 KINKR761 022-005105-020 GS Resistor PN:SQM 0R05 5W J 25x13 R21 022-470307-020 Resistor KNP 470R 7W J (KNP-700S) R781 Capacitors 034-100614-300 Electrolytic cap. 100uF/16V M (R)0611 P:2.5C81 034-100625-300 Eletrolytic cap. 100uF/25V M (R)6.3x11 P:5C621

40、 034-100695-300 electrolytic 100uF/63V M (R)1012 P:5 ()C1421 034-220525-300 GR Eletrolytic 22uF/25V M (R)5x11 P:2.5 TAPIN()C25,262 034-330625-300 GS Eletrolytic 330uF/25V M (R)1013 P:5 ()C11,1002 034-470415-300 Electrolytic cap. 4u7/50V M (R)0511 P:2.0 ()C71 031-100184-100A SMD Cap. 0u01/250V K 0805

41、 X7R C104,1192 031-100244-100A SMD Ceramic Cap. 0u01/50V K 0805 X7R (C27,28)C27,282 031-100344-100A SMD Cap. 0u1/50V K 0805 X7R C115,135,138C,10,69,1126 031-100384-100A SMD Cap. 0u1/250V K 1206 X7R (C5,6)C5,62 031-220344-300A SMD Cap. 220pF/50V K 0805 NPO (C40)C401 031-470144-101A SMD Cap. 0u0047/50

42、V K 0805 X7R (C1G1)C1G11 033-330444-270 NPE cap. 印ELYTONE 3u3/50V K10 (R)8x13 SBEC114,1372 033-680464-270 NPE cap. 印ELYTONE 6u8/100V K10 (R)1020 GNEC113,1362 034-150895-201 Electrolytic cap. 105 15000uF/63V M (R)3557 P:10mmC1,42 032-100484-200 GS END mylar cap. 1uF/250V K P:15 (C37,39,30)C37,39,303

43、Semiconductors 051-000600-100 Transistor NPN PN:MPSW06RLRA TO-92 (ON)(Q6)Q61 051-005600-100 Transistor PNP PN:MPSW56RLRA TO-92 (ON)(Q8)Q81 051-290700-100 Transistor PNP (ON) PN:MPS2907A RLRA TO-92 Q12,14,16,184 051-540101-000 GR Transistor PNP(FAIRCHILD PN:2N5401 TO-92 (Q3)Q31 054-000100-100 GS SMD

44、DIODE: PN:ES1D 200V 1A D1,23,37,40,44,476 054-001002-100 SMD ZENER DIODE PN:BZX84C10 10V SOT-23 (D32)D321 054-001501-100 SMD ZENER DIODE PN:BZX84C15 15V SOT-23 (D2,3)D2,32 054-033904-100 SMD Transistor PN:MMBT3904LT1 SOT23 Q25,28,29,37,50,516 054-033906-100 SMD Transistor PN:MMBT3906LT1 SOT23 Q26,27

45、,30,364 054-050601-100 SMD ZENER DIODE PN:BZX84C5V6 5.6V SOT-23 D301 054-290701-100 SMDTransistor (ON) PN:MMBT2907ALT1 SOT-23 (Q52)Q521 L8400P L series 8400P L series 15 Part NumberDescriptionReference DesignatorQty Main Amp/Supply PCB 054-414803-100ZR GR SMD DIODE PN:LL4148GSO8 (Vishay)()D4-5,13,14

46、,21,22,31,33,38,41,45,48,34,6,90,91,16 054-540100-100 SMD Transistor (PNP) PN:MMBT5401 LT1 SOT-23 (Q1)Q11 054-555100-100 SMD Transistor (NPN) PN:MMBT5551 LT1 (ON)(Q2)Q21 051-002301-000 MOSFET N CHANNEL PN:FB23N20D Q11,13,15,174 052-400080-000 Bridge Rectifier PN:RS804 400V,8A (BR1)BR11 053-257400-10

47、0 IC:DIP,Regulator PN:LM2574 HVN-15V 8PIN (NS)(U6)U61 Miscellaneous 044-100100-000 SMD FERRITE BEAD PN:321611 600R/100MHz 1206FB1,FB22 025-010300-000 Thermister TSE-103 K L:50mm TH11 025-210100-000 Thermister (PTC) PN:PTMS2101RP516B (TH2)TH21 043-300101-000 INDUCTOR PN:YT-10033 30uH (L9,10)L9,102 04

48、3-560200-000 INDUCTOR 56uH YT-10779 (L12)L121 043-700100-000 INDUCTOR 70uHx2 YT-10024 (L8)L81 043-820300-000 INDUCTOR 820uH YT-10034 (L1)L11 072-040008-110 8P Terminal base JS-1001-08 (P1)P11 072-040039-000 Terminal (PCB TYPE) PC205 (t=0.8m/m) T205MA1 072-040064-000 Terminal (PCB TYPE) PC250(t=0.8),T250MA T2,TER62