Jbl-ES150P actsub电路图.pdf

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1、 ES Series ES150P Powered Subwoofer Service Manual JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev0 3/2008 Released 2008 Discontinued XXXX RadioFans.CN 收音机爱 好者资料库 - CONTENTS - BASIC SPECIFICATIONS .1 DETAILED SPECIFICATIONS .2 PACKING.4 CONTROLS/CONNECTIONS.5 OPERATION .7 E

2、XPLODED VIEW/PARTS LIST.8 TEST SET-UP AND PROCEDURE.9 AMPLIFIER BLOCK DIAGRAM.10 DETAILED TROUBLESHOOTING. 12 P.C.B. DRAWINGS.13 ELECTRICAL PARTS LIST .18 IC/TRANSISTOR PINOUTS.23 SCHEMATICS.24 ES150P SPECIFICATIONS Amplifier Power (RMS): 300 Watts Peak Dynamic Power *: 500 Watts Driver: 10 (254mm)

3、PolyPlas Inputs: Line Level (switchable to LFE) Low-Pass Frequency: Variable from 50Hz to 150Hz (24dB/octave, continuously variable) Frequency Response: 27Hz Low-pass crossover setting Dimensions (H x W x D): 18 x 13-1/4 x 15-1/4 (457mm x 337mm x 387mm) Weight: 39 lb/17.7kg JBL continually strives t

4、o 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

5、 resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off. 1 ES150P RadioFans.CN 收音机爱 好者资料库 JBL ES150P 225W Powered Sub Amp LINE VOLTAGEYes/NoHi/Lo LineNom.UnitNotes US 120vac/60HzYes108-132120VrmsNormal Operation EU 230vac/50-60HzYes207-2

6、53230VrmsNormal operation, MOMS required ParameterSpecificationUnit QA Test LimitsConditionsNotes Amp Section Type (Class AB, D, other)Dn/an/a Min. Load Impedance (speaker)4Ohmsn/aNominal AVG System impedance5.18OhmsReference AP Computed based on system impedance curveOver the BW of 20 to 500Hz Rate

7、d Output Power 225Watts210 AVG RMS Dynamic Power245Watts240 Average RMS power, 3/20 Cycles 50 Hz, Driven 6dB above its input sensitivity , average of the first 4 consecutive peaks THD Rated Power0.5%122k filter THD 1 Watt0.2%0.322k filter DC Offset10mV-DC30 Speaker Outputs Damping factor50DF20Measur

8、ed at amplifier board Measured at the speaker cable. 189 Watts THD 0.1 % 50 Hz Input Sensitivity Input Frequency50Hz50Nominal Freq. L or R Inputs11mVrms1dBTo 1 WattSingle input driven LFE mode using L or R inputs11mVrms1dBTo 1 WattSingle input driven, LFE switch ON System Gain45dBReferenceSingle inp

9、ut driven Normal or LFE mode Signal to Noise SNR-A-Weighted80dBA75relative to 1WA-Weighting filter SNR-unweighted65dBr60relative to 1W22K filter Residual Noise FloorLP T 15 Minutes Power on Delay time3sec.4After AC Power is applied ES150P 2 RadioFans.CN 收音机爱 好者资料库 ParameterSpecificationUnit QA Test

10、LimitsConditionsNotes Transients/Pops ATO Transient0.5V-peak0.5V Speaker Output Amplifier activated by signal presence at the Line input Turn-on Transient0.5V-peak0.8V Speaker OutputAC Line cycled from OFF to ON Turn-off Transient0.5V-peak0.8V Speaker OutputAC Line cycled from ON to OFF Efficiency E

11、fficiency61%60 Test conducted at rated power 250WNominal Line voltage Efficiency at 1/8 of rated power45%42Test conducted at 31.25 WRMS Nominal Line voltage-Rated impedance 4 Ohms Off state input power12Watts14Nominal Line voltage RED LED Stand-by Input Power18Watts18 nom. line voltage Maximum allow

12、able input power under nominal Input voltage and frequency, HOT or COLD operation. LED GREEN no signal applied Power Cons. rated power367Watts375 nom. line voltage225 Watts 4 Ohms nominal line voltage Protections Short Circuit Protection YESfunctional Direct short at output Amplifier should resume o

13、peration after short circuit condition removal Thermal Protection YESfunctional 1/8 max unclipped Power at 1.06 times the input voltage Temperature rise in accessible metal parts should not exceed 35K rise for domestic version or 30K rise for European versions (refer to requirements sheet). DC Offse

14、t ProtectionYES-DC present at Speaker Out leads Design must insure no Offset at the speaker output under any operating condition including abnormal operation Line Fuse Rating USA-Domestic 3.15Amps3.15Type-T or Slo Blo-250 VInternal fuse with UL/SEMKO rated holder EU2Amps2 Type-T or Slo Blo-250 V, Lo

15、w Breaking capacityInternal fuse with UL/SEMKO rated holder Other Parameters/Notes: 1. Limiter circuit response must be clean sounding with no apparent pops, noises, or pumping. 2. Plate dimensions not to exceed 11.81H x 7.87W and the plate must be airtight with no possibility of air leaks (plastic

16、cover required). 3. Volume control should be at the input buffer stage in order to lessen the possibility of clipping the input section with highly dynamic audio material. 4. ALL SPECS SHOULD BE MEASURED AT NOMINAL LINE VOLTAGE. ES150P 3 ES150P 4 4 Rear Panel CONTROLS AND CONNECTIONS AC 120V60Hz 2A

17、Phase Switch LFE/Normal Selector Subwoofer-Level Control Crossover Adjustment Line-Level/LFE Input Power Switch ES150/250P (12V) OM 6/21/07 3:03 PM Page 6 ES150P 5 SYSTEM CONNECTIONS If you have a DolbyDigital or DTSreceiver/processor with a low-frequency-effects (LFE) or subwoofer output: 5 If your

18、 receiver/processor does not contain a Dolby Digital or DTS processor, but has subwoofer outputs: Set line-level/LFE switch to “Normal.” NOTE: If your receiver/processor has only one sub out, you may use either the L or R input. Set LFE/Normal switch to “LFE.” ES150/250P (12V) OM 6/21/07 3:03 PM Pag

19、e 7 ES150P 6 Power On Plug your subwoofers AC cord into a wall outlet. Do not use the outlets on the back of the receiver. Initially set the Subwoofer-Level Control to the “min” position. Turn on your sub by pressing the Power Switch on the rear panel. Turn on your entire audio system and start a CD

20、 or movie soundtrack at a moderate level. Auto On/Standby With the Power Switch in the ON position, the Status LED on the top will remain lit in red or green to indicate the On/Standby mode of the subwoofer. RED = STANDBY (No signal detected, Amp Off) GREEN = ON (Signal detected, Amp On) The subwoof

21、er will automatically enter the Standby mode after approximately 10 minutes when no signal is detected from your system. The subwoofer will then power ON instantly when a signal is detected. During periods of normal use, the Power Switch can be left on. You may turn off the Power Switch for extended

22、 periods of nonoperation, e.g., when you are away on vacation. Adjust Gain Turn your Subwoofer-Level Control up to the halfway position. If no sound emanates from the subwoofer, check the AC-line cord and input cables. Are the connectors on the cables making proper contact? Is the AC plug connected

23、to a “live” receptacle? Has the Power Switch been pressed to the “On” position? Once you have confirmed that the subwoofer is active, proceed by playing a CD, record or cassette. Use a selection that has ample bass information. Set the overall volume control of the preamplifier or stereo to a comfor

24、table level. Adjust the Subwoofer-Level Control until you obtain a pleasing blend of bass. Bass response should not overpower the room but rather be adjusted so there is a harmonious blend across the entire musical range. Many users have a tendency to set the subwoofer volume too loud, adhering to t

25、he belief that a subwoofer is there to produce lots of bass. This is not entirely true. A subwoofer is there to enhance bass, extending the response of the entire system so the bass can be felt as well as heard. However, overall balance must be maintained or the music will not sound natural. An expe

26、rienced listener will set the volume of the subwoofer so its impact on bass response is always there but never obtrusive. Phase Control The Phase Switch determines whether the subwoofer speakers pistonlike action moves in and out with the main speakers, 0, or opposite the main speakers, 180. Proper

27、phase adjustment depends on several variables such as room size, subwoofer placement and listener position. Adjust the phase switch to maximize bass output at the listening position. Crossover Adjustment The Crossover Adjustment Control determines the highest frequency at which the subwoofer reprodu

28、ces sounds. 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 bookshe

29、lf speakers that do not extend to the lower bass frequencies, set the Crossover Adjustment control to a higher setting, between 120Hz and 150Hz. NOTE: This control will have no effect if the LFE/Normal Selector is set to LFE. If you have a Dolby Digital or DTS processor/receiver, the Low-Pass Freque

30、ncy is set by the processor/receiver. Consult your owners manual to learn how to view or change this setting. The enclosure may be cleaned using a soft cloth to remove fingerprints or to wipe off dust. The grille may be gently vacuumed. Stains may be removed with an aerosol cleaner, following its in

31、structions. Do not use any solvents on the grille. All wiring connections should be inspected and cleaned or remade periodically. The frequency of maintenance depends on the metals involved in the connections, atmospheric conditions and other factors, but once per year is the minimum. If a problem o

32、ccurs, make sure that all connections are properly made and clean. If a problem exists in one loudspeaker, reverse the connection wires to the left and right system. If the problem remains in the same speaker, then the fault is with the loudspeaker. If the problem appears in the opposite speaker, th

33、e cause is in another component or cable. In the event that your subwoofer ever needs service, contact your local JBL dealer, or visit for a service center near you. OPERATION 6 MAINTENANCE AND SERVICE ES150/250P (12V) OM 6/21/07 3:03 PM Page 8 ES150P 7 ES150P 8 ES150P Test Set Up and Procedure Equi

34、pment needed: Function/signal generator/sweep generator Integrated Amplifier Multimeter Speaker cables General Unit Function (UUT = Unit Under Test) 1) From the signal generator, connect line level (RCA) cables to the Subwoofer Line Level Input jacks L/R on the UUT. Use a Y-cable from a mono source

35、if necessary to connect to both inputs. 2) Turn the CROSSOVER control to maximum (150). 3) Turn the LEVEL control on the UUT to completely counterclockwise (MIN). 4) LFE/NORMAL switch should be in NORMAL position. 5) PHASE switch position does not matter. 6) Turn on generator; adjust to 75mV, 50 Hz.

36、 7) Plug in UUT; turn the power switch ON. LED should switch from Red to Green. 8) Turn LEVEL control full clockwise (MAX); immediate and vigorous bass response should be heard and felt from port tube opening on the bottom. 9) Turn off generator, turn LEVEL control full counterclockwise (MIN), and d

37、isconnect RCA cable. Sweep Function 1) Follow steps 1-8 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 woofer and test. Driver Fun

38、ction 1) Remove woofer from cabinet; detach + and - wire clips. 2) Check DC resistance of woofer; it should be 3.4 ohms 10% 3) Connect a pair of speaker cables to driver terminals. Cables should be connected to an integrated amplifier fed by a signal generator. Turn on generator and adjust so that s

39、peaker level output is 5.0V. 4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing, or other unusual noises. ES150P 9 ES150P 10 ES150P 11 ES150P Troubleshooting Testing Flow Chart ES150P Troubleshooting Testing Flow Chart yes no no yes yes no yes no yes no yes no yes no yes

40、 no no yes yes no Start Dc voltage check Vcc,15V O Check transformer C168,C169,D123, D124,C170 Power on check LED red Ac cord, Transformer. O Listening test O The Amp assy ok END Test phase sw,low pass sw rabos vr Check sw103,102, R158,163,177 etc ES150P 12 ES150P 13 ES150P 14 ES150P 15 ES150P 16 ES

41、150P 17 ES150P (120v) Electrical Parts List Part NumberDescriptionQty Reference Designator INPUT/PREAMP PCB & DAUGHTER BOARD PCB Resistors 110-14392J26-E CARBON RESISTOR 3.9K 1/4W 5% CF (RoHS)1R150, 110-16000j26-e CARBON RESISTOR 0 1/6W 5% CF (RoHS)1R191, 110-16101J26-E CARBON RESISTOR 100 1/6W 5% C

42、F (RoHS)4R112,R113,R151,R152, 110-16102J26-E CARBON RESISTOR 1K 1/6W 5% CF (RoHS)1R140, 110-16103J26-E CARBON RESISTOR 10K 1/6W 5% CF (RoHS)7R263,R118,R133,R136,R146,R149,R199, 110-16105J26-E CARBON RESISTOR 1M 1/6W 5% CF (RoHS)1R145, 110-16151J26-E CARBON RESISTOR 150 1/6W 5% CF (RoHS)1R139, 110-16

43、183J26-E CARBON RESISTOR 18K 1/6W 5% CF (RoHS)1R147, 110-16203J26-E CARBON RESISTOR 20K 1/6W 5% CF (RoHS)1R200, 110-16221j26-e CARBON RESISTOR 220 1/6W 5% CF (RoHS)2R119,R120, 110-16223J26-E CARBON RESISTOR 22K 1/6W 5% CF (RoHS)2R141,R148, 110-16274j26-e CARBON RESISTOR 270K 1/6W 5% CF (RoHS)1R138,

44、110-16432j26-e CARBON RESISTOR4.3K 1/6W 5% CF (RoHS)1R254, 110-16472J26-E CARBON RESISTOR 4.7K 1/6W 5% CF (RoHS)1R144, 110-16473J26-E CARBON RESISTOR 47K 1/6W 5% CF (RoHS)1R137, 110-16474j26-e CARBON RESISTOR 470K 1/6W 5% CF (RoHS)1R143, 110-164r7j26-e CARBON RESISTOR 4.7 1/6W 5% CF (RoHS)1R153, 116

45、-161002f26-e METAL FILM RESISTOR 10K 1/6W 1% MF (RoHS)3R130,R131,R132, 116-161212f26-e METAL FILM RESISTOR 12.1K 1/6W 1% MF (RoHS)1R188, 116-161243F26-E METAL FILM RESISTOR 1/6W 124K 1% MF (RoHS)1R190, 116-161271F26-E METAL FILM RESISTOR 1.27K 1/6W 1% MF(RoHS)1R251, 116-161504f26-e METAL FILM RESIST

46、OR 1.5M 1/6W 1% MF (RoHS)1R142, 116-162001f26-e METAL FILM RESISTOR 2.00K 1/6W 1% MF1R202, 116-162002f26-e METAL FILM RESISTOR 20.0K 1/6W 1% MF (RoHS)1R193, 116-162051f26-e METAL FILM RESISTOR 2.05K 1/6W MF (RoHS)1R252, 116-162212f26-e METAL FILM RESISTOR 22.1K 1/6W 1% MF (RoHS)6R209,R231,R232,R296,R204,R206, 116-162553F26-E METAL FILM RESISTOR 255K 1/6W1% MF (RoHS)1R195, 116-162611f26-e METAL FILM RESISTOR 1/6W 2.61K 1% (RoHS)1R253, 116-162803f26-e METAL FILM RESI