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Series

LS120P

Amplifier/Subwoofer

SERVICE MANUAL

JBL Consumer Products

250 Crossways Park Dr.

Woodbury, New York 11797

Rev0 4/2008

Released 2008
Discontinued XXXX

Содержание LS Series

Страница 1: ...LS Series LS120P Amplifier Subwoofer SERVICE MANUAL JBL Consumer Products 250 Crossways Park Dr Woodbury New York 11797 Rev0 4 2008 Released 2008 Discontinued XXXX...

Страница 2: ...50Hz to 150Hz 24dB octave continuously variable Frequency Response 25Hz 150Hz or Low pass crossover setting Dimensions H x W x D 20 1 16 x 14 3 4 x 17 1 4 510mm x 375mm x 438mm with feet controls gril...

Страница 3: ...driven Normal System Gain in dB 39 17 dB Reference Single input driven Normal Signal to Noise SNR A Weighted 100 dBA 95 relative to rated A Weighting filter SNR unweighted 90 dBr 85 relative to rated...

Страница 4: ...om line voltage Maximum allowable input power under nominal Input voltage and frequency HOT or COLD operation LED GREEN Power Cons rated power 384 Watts 416 nom line voltage 150 Watts 4 Ohms nominal P...

Страница 5: ...4 LS120P...

Страница 6: ...ONNECTIONS LS120P 0 Phase Switch 1 LFE Normal Selector 2 Subwoofer Level Control 3 Crossover Adjustment 4 Power Indicator 5 Line Level LFE Input 6 Power Switch 0 1 2 5 6 3 4 JBLP2555LS120P 120Vom 4 16...

Страница 7: ...t 5 If your receiver processor does not contain a Dolby Digital or DTS processor but has subwoofer outputs Set LFE Normal switch to Normal NOTE If your receiver processor has only one sub out you may...

Страница 8: ...re 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 experienced listener will set the volume of the subwoofer so its im...

Страница 9: ...52 FM04020D605 E Screw amplifier 18 5 30PR14FZD DW01 E 12 Woofer 1 6 Not for Sale LS120P Cabinet 1 7 Not for Sale Damping 1 8 249HIPS 05093 0BAE Port Tube 1 9 Not for Sale LS120P Amplifier 1 10 357 XM...

Страница 10: ...LEVEL control fully Counterclockwise Min disconnect RCA cable Sweep Function 1 Follow steps 1 5 above using a sweep generator as a signal source 2 Sweep generator from 20Hz to 1kHz Listen to the cabi...

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Страница 13: ...k fuse transformer D123 D124 etc Check Class300W MODUL Check D130 R263 265etc Check vbbp vbbp DC voltage Check Relay K101 etc Check Q116 Q117 Q118 D122 Check Q102 101 U103 etc Check P104 pin8 signal C...

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Страница 19: ...TAL FILM RESISTOR 2 37K 1 6W 1 RoHS 1 R253 116 162372F26 E METAL FILM RESISTOR 23 7K 1 6W 1 MF RoHS 1 R189 116 162803f26 e METAL FILM RESISTOR 280K 1 6W 1 MF RoHS 1 R201 116 163011F26 E METAL FILM RES...

Страница 20: ...W 5 CF RoHS 1 R240 110 16333j26 e CARBON RESISTOR 33K 1 6W 5 CF RoHS 1 R211 110 16391j26 e CARBON RESISTOR 390 1 6W CF RoHS 2 R243 R246 110 16472J26 E CARBON RESISTOR 4 7K 1 6W 5 CF RoHS 4 R213 R217 R...

Страница 21: ...118 12061002J E SMD RESISTOR 10 0K 1206 5 RoHS 5 R29 R30 R30B R7 R9 118 120610R0J E SMD RESISTOR 10 0 1206 5 RoHS 4 R20 R20B R22 R23 118 12062002F E SMD RESISTOR 20K 1206 1 RoHS 1 R26 118 12062201J E...

Страница 22: ...700mm 18 UL1015 205 0 5t BLACK 250 0 8t R 1 180 PRF1003B E POWER SWITCH ROCKER RF 1003 BB210 RoHS 1 193 0s4211 e INSULATOR INSULATION SPACER 42 11 RoHS 1 193 201612tr e INSULATOR T0 220 16mm 12mm RoH...

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