JBL ES250P, Service Manual

Page 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 ...

Page 2: ...quency 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 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 w...

Page 3: ...ive to 1W 22K filter Residual Noise Floor 2 0 mVrms max 2 5 Volume max w A P Swept Bandpass Measurement Line freq harmonics BW 20 KHz Line level inputs must be terminated using 1KOHM Input Impedance Line Input L R LFE 10K ohms n a Nominal Filters LP filter Variable 50 150 Hz 10 4th Order variable 24 db Octave Subsonic filter HPF 2nd Order Fixed Friend circuit Fixed LFE Low pass 200 LP 500 Hz LFE i...

Page 4: ...condition removal Thermal Protection YES functional 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 Offset Protection YES DC present at Speaker Out leads Design must insure no Offset at the speaker output under any operating condition i...

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Page 6: ...4 Rear Panel CONTROLS AND CONNECTIONS AC 120V 60Hz 2A Phase Switch LFE Normal Selector Subwoofer Level Control Crossover Adjustment Line Level LFE Input Power Switch 5 ES250P ...

Page 7: ...fects LFE or subwoofer output 5 If your 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 6 ES250P ...

Page 8: ...et 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 speaker s pistonlike action moves in and out with the main speakers 0 or opposite the main speakers 180 Proper phase adjustment depends on several variables such as room size subwoofer placement and listener position Adjust the phase swit...

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Page 10: ...ol 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 disconnect 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 a...

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Page 13: ...output power noise O Check pre board power board Vcc 15V etc Test frequency Response O Check U102 uR133 C121 R135 C122 etc Test input sensitivity O Check U101 R117 R112 R114 etc Test protection O Check U107 R237 15Vcc etc Test limiter circuit O Check U106 Q107etc Auto off Function Hi pot test O Check U103 Q101 Q102 C131 R142 Ac cord Transformer O Listening test O The Amp ass y ok END Test phase sw...

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Page 19: ...6 e metal film resistor 20 0K 1 6W 1 MF RoHS 1 R193 116 162212f26 e metal film resistor 22 1K 1 6W 1 MF RoHS 2 R204 R206 116 162262f26 e metal film resistor 22 6K 1 6W 1 MF RoHS 4 R209 R231 R232 R296 116 162372f26 e metal film resistor 23 7K 1 6W 1 MF RoHS 1 R188 116 162803f26 e metal film resistor 280K 1 6W 1 MF RoHS 1 R201 116 163011f26 e metal film resistor 3 01K 1 6W 1 MF RoHS 1 R194 116 16374...

Page 20: ...239 R264 110 16103J26 E carbon resistor10K 1 6W 5 CF RoHS 9 R216 R227 R229 R230 R231 R232 R233 R260 R261 110 16153j26 e carbon resistor15K 1 6W 5 CF RoHS 2 R247 R249 110 16182j26 e carbon resistor 1 8K 1 6W 5 CF RoHS 1 R248 110 16222J26 E carbon resistor2 2K 1 6W 5 CF RoHS 2 R242 R245 110 16223J26 E carbon resistor 22K 1 6W 5 CF RoHS 3 R218 R220 R223 110 16274j26 e carbon resistor 270K 1 6W 5 CF R...

Page 21: ...1A 200V DF02M 1 D124 197 00kbu1003 e DIODE 10A 200V KBU1003 1 D123 197 101n4002 e DIODE 1N4002TB RoHS 1 D114 Miscellaneous 109 1tsc103j0 e THERMISTOR TSC05103J RoHS 1 R237 171 udhss124d e RELAY 5A 24V UDH SS124D 1 K101 175 1c02v01 e WIRE CONNECTOR 2PIN PITCH 2 5mm RoHS 1 P108 175 1c06v01 e WIRE CONNECTOR 6 PIN PITCH 2 5mm 1 P107 175 1d02v01 e WIRE CONNECTOR 2PIN PITCH 3 96mm 1 P112 175 1d05v01 e W...

Page 22: ... FET IRF9640 IR P CH TO220 RoHS 2 Q10 Q10B 192 233f640n e TRANSISTOR IRF640N INTERNATIONAL RoHS 1 Q11 Miscellaneous 122 13151k0190 e CHOKE SA 500 280 PT1601B 151MAA RoHS 1 L1 122 14300k4 e Ferrite core LD1215 300KU 10 RoHS 1 L2 175 9F02H02 E WIRE CONNECTOR BASE 2PIN PITCH 2 54mm RoHS 1 HDR3 175 9F03H020 E WIRE CONNECTOR BASE 3PIN PITCH 2 54mm RoHS 2 HDR1 HDR2 MISC MECHANICAL AC INPUT PCB 128 C117J...

Page 23: ...oHS 2 351 HM03006A308 E Machine screw M3 6mm cross BLK RoHS 1 351 HM04010A217 E M4 10 Machine screw cross BLK RoHS 4 352 AM03008D040 E 3 8 B type ping screw cross BLK RoHS 2 352 AM03008D041 E 3 8 Btype ping screw cross with nickel RoHS 2 352 AM03010D065 E 3 10 Ptype ping screw cross BLK RoHS 1 352 BM03010D064 E 3 10 Btype ping screw cross BLK RoHS 2 355 P07049 E washer 7 2 12 0 5t COLOR RoHS 2 361...

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