JBL E250P Service Manual Download Page 21

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E250P Electrical Parts List

Part Number

Description

Reference Designator

Qty

Resistors

020-220497-120 Carbon Film

2K2 1/4W J

R11

021-100401-120 MOF Resistor

1K 1W J

R103

021-120403-020 MOF Resistor

1K2 3WS J 8x20

021-120405-020 MOF Resistor

1K2 5WS J 8x25

021-220202-120 MOF Resistor

22R 2W(S) J MB TYPE 15x8

R10

022-500003-020 KNP Resistor

0R05 3WS J FK TYPE

R104

024-000098-120 SMD Resistor

0R 1/8W J 0805

R125,126

024-100298-120 SMD Resistor

10R 1/8W J 0805

R81,82

024-100398-120 SMD Resistor

100R 1/8W J 0805

R62

024-100498-120 SMD Resistor

1K 1/8W J 0805

R79,83,92,95,96,105,108,127,65

024-100598-120 SMD Resistor

10K 1/8W J 0805

R2,17,19,37,54,58,63,71,

024-100698-120 SMD Resistor

100K 1/8W J 0805

R3,112,22-25

024-110598-100 SMD Resistor

11K 1/8W F 0805

R98

024-120698-120 SMD Resistor

120K 1/8W J 0805

R39

024-121598-100 SMD Resistor

12K1 1/8W F 0805

R38

024-137698-100 SMD Resistor

137K 1/8W F 0805

R32

024-150498-120 SMD Resistor

1K5 1/8W J 0805

R67,68

024-180598-120 SMD Resistor

18K 1/8W J 0805

R29

024-187698-100 SMD Resistor

187K 1/8W F 0805

R45

024-200598-120 SMD Resistor

20K 1/8W J 0805

R94

024-220398-120 SMD Resistor

220R 1/8W J 0805

R90

024-220498-121 SMD Resistor

2K2 1/8W J 0805

R1,87,61

024-220598-120 SMD Resistor

22K 1/8W J 0805

R118

024-220798-120 SMD Resistor

2M2 1/8W J 0805

R80,121

024-237598-120 SMD Resistor

23K7 1/8W F 0805

R48

024-243698-100 SMD Resistor

243K 1/8W F 0805

R36

024-270498-120 SMD Resistor

2K7 1/8W J 0805

R73,64

024-300398-120 SMD Resistor

300R 1/8W J 0805

R55

024-300598-120 SMD Resistor

30K 1/8W J 0805

R56

024-330498-120 SMD Resistor

3K3 1/8W J 0805

R7,8,12-15,59

024-330598-120 SMD Resistor

33K 1/8W J 0805

R4,5

024-332498-100 SMD Resistor

3K32 1/8W F 0805

R26,27,

024-360498-120 SMD Resistor

3K6 1/8W J 0805

R28

024-390498-120 SMD Resistor

3K9 1/8W J 0805

R93

024-390598-120 SMD Resistor

39K 1/8W J 0805

R77

024-430498-100 SMD Resistor

4K3 1/8W F 0805

R78

024-453598-100 SMD Resistor

45K3 1/8W F 0805

R30

024-470298-120 SMD Resistor

47R 1/8W J 0805

R101,102

024-470398-120 SMD Resistor

470R 1/8W J 0805

R76,99,100

024-470498-120 SMD Resistor

4K7 1/8W J 0805

R85,86

024-470598-120 SMD Resistor

47K 1/8W J 0805

R44,47,49,107

E250P

Summary of Contents for E250P

Page 1: ...Northridge E Series E250P Powered Subwoofer Service Manual JBL Consumer Products 250 Crossways Park Dr Woodbury New York 11797 Rev2 2 2004...

Page 2: ...chable to LFE and Speaker Level with 5 way binding posts Low Pass Frequency Variable from 50Hz to 150Hz Frequency Response 25Hz Low pass crossover setting Dimensions H x W x D 19 3 4 x 14 3 8 x 16 1 2...

Page 3: ...nce from either side of the line cord to chassis ground If it is less than 500k ohms the unit is defective WARNING DO NOT return the unit to the customer if it fails one of these tests until the probl...

Page 4: ...esidual Noise Floor 1 5 mVrms max 2 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 oh...

Page 5: ...CONNECTION When we designed the E150P and E250P powered subwoofers our goal was to offer the user the best pos sible performance combined with the most flexible and complete installation options Plea...

Page 6: ...e front left and right speakers or the subwoofer Refer to the connection dia gram for guidance Twist together the leads at one end of the speaker wires that you have designated for the left front spea...

Page 7: ...R PREAMPLIFIER L R For LFE use L or R Analog Receiver Processor Line Level Connections Use this installation method with an analog receiver processor that does not have digital processing or bass mana...

Page 8: ...er level adjustment depends on sev eral variables 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 plea...

Page 9: ...and there is no sound from the subwoofer 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 o...

Page 10: ...INC LOGO PLATE 4 11 903802 016 SCREW PB HXS 8x1 ZINC WOOFER 8 12 338128 002 ASY WOOFER 12 DCR 4 8 1 13 336799 001 ASY PORT TUBE 1 14 351307 001 GRILLE BLK FRNT 1 15 333249 003 CUP GRILLE TITANIUM BEEC...

Page 11: ...n UUT Cables should be connected to an integrated amplifier fed by the signal generator 7 Turn on generator and adjust so that speaker level output is 1 0V 50Hz Turn LEVEL control full clockwise MAX 8...

Page 12: ...E250P 11...

Page 13: ...s International Rectifier or Fairchild Replace both Q18 and Q22 MOSFET s in the circuit even if only one seems to be damaged Do NOT mix match these components from different manufacturers or batches T...

Page 14: ...U4 1 P U4 7 RED 0Vrms 11 84VDC GREEN 7 13Vrms 12 93VDC 3 D C Operation Voltage measurements DVM on CLASS D POWER AMP Between V Q4 E Q1 C Q10 C U7 1 U7 2 U7 4 U7 6 U7 7 U7 8 And This Point GND V GND GN...

Page 15: ...l to High level input Voltage measurements 15 3V at speaker output 3 Low Pass Set up Set Generator at 200 mV 100Hz Signal to Line level input Measure voltage at S speaker output Voltage measurement X...

Page 16: ...ctifier C6 and C8 Use scope to check switching frequency U6 7 100KHz 10 24Vp p Check Q4 E TO V 0V D C Power up with no signal input LED RED OK OK OK OK OK OK OK OK Check MUTE 8V and Q24 Q25 Q26 Use sc...

Page 17: ...E250P 16...

Page 18: ...E250P 17...

Page 19: ...E250P 18...

Page 20: ...E250P 19...

Page 21: ...8W J 0805 R29 1 024 187698 100 SMD Resistor 187K 1 8W F 0805 R45 1 024 200598 120 SMD Resistor 20K 1 8W J 0805 R94 1 024 220398 120 SMD Resistor 220R 1 8W J 0805 R90 1 024 220498 121 SMD Resistor 2K2...

Page 22: ...1 470244 102 SMD Capacitor 0u047 50V K 0805 X7R C62 59 2 031 560243 100 SMD Capacitor 56pF 50V J 0805 NPO C57 61 2 031 560343 102 SMD Capacitor 560pF 50V J 0805 NPO C56 1 032 100484 200 Mylar Capacito...

Page 23: ...8M TE3 DMP 8 U4 1 054 050601 100 SMD ZENER DIODE PN BZX84C5V6 5 6V SOT 23 D24 36 37 3 054 414803 100 SMD DIODE PN LL4148 Wishay D1 4 8 10 23 27 28 21 054 540100 100 SMD Zener Diode PN MMBT5401 LT1 SOT...

Page 24: ...l PC250 t 0 8 T250MA 072 040096 000 Terminal T187MA t 0 8mm PC187 0 8 AC1 AC3 T1 T2 AC2 SW2 SW4 072 040169 000 Connector 2 PIN JS 1001 2 P 2 5mm 072 060170 000 B P W Accessory Parts 073 032315 601 Bla...

Page 25: ...2N5401 Q1 2 Base 3 Collector 1 Emitter 1 2 3 MPSW06RLRA MPSW56RLRAMPQ MPS2222ARLRA 2N2907A 2N5551 Q2 16 3 21 19 23 17 MOSFET IRF640 Q18 22 TIP31C Q4 MMBT3904LTI SOT23 MMBT3906LTI SOT23 DTC114EK SMT3 M...

Page 26: ...E250P SCHEMATICS 25 NOTE THIS VOLTAGE IS REFERENCED TO V NOT CIRCUIT GROUND NOTE THIS VOLTAGE IS REFERENCED TO V NOT CIRCUIT GROUND...

Page 27: ...E250P 26...

Page 28: ...P E250P 1 2 351249 001 CARTON MASTER E250P BEECH MODEL 1 351249 003 CARTON MASTER E250P BLACK MODEL 1 350884 003 CARTON MASTER E250P CHERRY MODEL 1 3 351252 001 PAD END TOP E250P 1 4 351252 002 PAD EN...

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