Jbl-ES250P actsub电路图.pdf
《Jbl-ES250P actsub电路图.pdf》由会员分享,可在线阅读,更多相关《Jbl-ES250P actsub电路图.pdf(34页珍藏版)》请在收音机爱好者资料库上搜索。
1、 ES Series ES250P 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 ES250P SPECIFICATIONS Amplifier Power (RMS): 400 Watts Peak Dynamic Power *: 700 Watts Driver: 12 (305mm)
3、PolyPlas Inputs: Line Level (switchable to LFE) Low-Pass Frequency: Variable from 50Hz to 150Hz (24dB/octave, continuously variable) Frequency Response: 25Hz Low-pass crossover setting Dimensions (H x W x D): 19-3/4 x 15-3/4 x 16-7/8 (502mm x 400mm x 428mm) Weight: 43 lb/19.5kg JBL continually striv
4、es 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
5、of a resistive load equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off. 1 ES250P RadioFans.CN 收音机爱 好者资料库 JBL ES250P 250W Powered Sub Amp Yes/NoHi/Lo LineNom.UnitNotes US 120vac/60HzYes108-132120VrmsNormal Operation EU 230vac/50-60HzYes207-253230Vrm
6、sNormal operation, MOMS required ParameterSpecificationUnit QA Test LimitsConditionsNotes Amp Section Type (Class AB, D, other)Dn/an/a Load Impedance (speaker)4Ohmsn/aNominal AVG System impedance7Ohmsn/a AP Computed BW from 20 to 500Hz Rated Output Power (120VAC)250Watts250Domestic version only 120
7、VAC-60 Hz AVG RMS Dynamic Power509Watts200217mV driven into a single input 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 fac
8、tor50DF20 Measured at amplifier board 90% of full power Measured at the speaker cable. 225 Watts THD 0.1 % 50 Hz Input Sensitivity Input Frequency50Hz50Nominal Freq. L adjust to 50mV, 50 Hz. 7) Plug in UUT; turn the power switch ON. LED should switch from Red to Green. 8) Turn LEVEL control full clo
9、ckwise (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 disconnect RCA cable. Sweep Function 1) Follow steps 1-8 above, using a sweep generator as a signal source. 2)
10、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 Function 1) Remove woofer from cabinet; detach + and - wire clips. 2) Check DC resistance of woofer; it should be
11、 3.6 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 speaker level output is 5.0V. 4) Sweep generator from 20Hz to 1kHz. Listen to driver for any rubbing, buzzing,
12、or other unusual noises. 9 ES250P 10 ES250P 11 ES250P ES250P Troubleshooting Flow Chart ES250P Troubleshooting Flow Chart yes no no yes yes no yes no yes no yes no yes no yes 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,
13、 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 12 ES250P 13 ES250P 14 ES250P 15 ES250P 16 ES250P 17 ES250P ES250P (120v) Electrical Parts List Part NumberDescriptionQtyReference Designator INPUT/PREAMP PCB & DAUGHTER BOARD PC
14、B 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% CF (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
15、 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, 110-16183j26-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
16、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, 110-16432j26-e Carbon resistor 4.3K 1/6W 5% CF (RoHS)1R254, 110-16472j26-e Carbon resistor 4.7K 1/6W 5% CF (RoHS)1R144, 110-164
17、73j26-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, 116-161001f26-e metal film resistor 1K 1/6W 1% MF (RoHS)1R252, 116-161002f26-e metal film resistor 10K 1/6W 1% MF (RoHS)3R130,R13
18、1,R132, 116-161053f26-e metal film resistor 105k 1/6w 1% MF(RoHS)1R135, 116-161373f26-e metal film resistor 137k 1/6w 1% MF(RoHS)1R190, 116-161431f26-e metal film resistor 1.43K 1/6W 1% MF(RoHS)1R251, 116-161504f26-e metal film resistor 1.5M 1/6W 1% MF (RoHS)1R142, 116-161542f26-e metal film resisto
19、r 1/6W 15.4K 1% (RoHS)4R197,R198,R173,R178, 116-162001f26-e metal film resistor 2.00K 1/6W 1% MF (RoHS)1R202, 116-162002f26-e metal film resistor 20.0K 1/6W 1% MF (RoHS)1R193, 116-162212f26-e metal film resistor 22.1K 1/6W 1% MF (RoHS)2R204,R206, 116-162262f26-e metal film resistor 22.6K 1/6W 1% MF
20、(RoHS)4R209,R231,R232,R296, 116-162372f26-e metal film resistor 23.7K 1/6W 1% MF(RoHS)1R188, 116-162803f26-e metal film resistor 280K 1/6W1% MF (RoHS)1R201, 116-163011f26-e metal film resistor 3.01K 1/6W1% MF (RoHS)1R194, 116-163741f26-e metal film resistor 3.74K 1/6W 1% MF (RoHS) 1R253 116-164421f2
21、6-e metal film resistor 4.42K 1/6W 1% MF (RoHS)2R205,R207, 116-164751f26-e metal film resistor 4.75K 1/6W MF (RoHS)2R109,R110, 116-164752f26-e metal film resistor 47.5K 1/6W 1% MF (RoHS)2R121,R122, 116-164991f26-e metal film resistor 4.99K 1/6W 1% MF (RoHS)1R265, 116-165363f26-e metal film resistor
22、536K 1/6W1% MF (RoHS)1R195, 116-166491f26-e metal film resistor 6.49K 1/6W 1% MF (RoHS)3R114,R115,R134, 116-168251f26-e metal film resistor 8.25K 1/6W 1% MF (RoHS)1R189, 115-h103a101-e VARIABLE RESISTOR A10K (RoHS) LEVEL1R286, 115-h503b405-e VARIABLE RESISTOR B50K (RoHS) CROSSOVER1R233, Capacitors 1
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Jbl-ES250P actsub 电路图 Jbl ES250P
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。



Marshall-9100-62-02-Schematic电路原理图.pdf


