JBL Northridge E150P Service Manual
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JBL Northridge E150P Service Manual

E-series
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See also: Service Manual , Owner's Manual
Northridge
E-Series
™
E150P
Powered Subwoofer
Service Manual
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797
Rev2 2/2004

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Summary of Contents for JBL Northridge E150P

  • Page 1 Northridge E-Series ™ E150P Powered Subwoofer Service Manual JBL Consumer Products 250 Crossways Park Dr. Woodbury, New York 11797 Rev2 2/2004...

  • Page 2: Table Of Contents

    (451mm x 311mm x 368mm) Weight: 33.5 lb/15.2kg 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 without notice.

  • Page 3: Safety Information

    E150P SAFETY INFORMATION Warning List of Safety Components Requiring Exact Replacements Any person performing service of this unit will be exposed to hazardous voltages and the risk of electric shock. It is Part Number/ Description assumed that any person who removes the amplifier from...

  • Page 4: Detailed Specifications

    E150P JBL E150P Powered Sub/ Plate Amp LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes US 120vac/60Hz 108-132 Vrms Normal Operation EU 230vac/50-60Hz 207-264 Vrms Normal operation, MOMS required QA Test Parameter Specification Unit Limits Conditions Notes Amp Section Type (Class AB, D, other) Class D Preferred...Sink required for Class AB...
  • Page 5 (+) and negative (–) terminals. It proper connections, and any which description best is important to connect both damage to JBL or other equip- matches your system and speakers identically: ment due to improper connec- follow the corresponding...

  • Page 6: Connections

    E150P Analog Receiver/Processor – Speaker-Level Connections Use this installation method the left high-level inputs on speaker and left input on the only with an analog receiver/ the subwoofer. Insert the subwoofer, and then for the (+) processor that does not have joined (twisted) wires into the and (–) connections for the...
  • Page 7 E150P Analog Receiver/Processor – Line-Level Connections Use this installation method may connect the subwoofer with an analog receiver/ output on your receiver/pre- processor that does not have amplifier to either the left or digital processing or bass right line-level input on the management, and that is subwoofer.

  • Page 8: Operation

    LED on the top of the unit will signal to the subwoofer is woofer can be turned off, turn red. When a signal is removed. Due to JBL’s unique whenever desired, if you do present, the LED will turn high-output, high-efficiency not wish to leave it in auto green.

  • Page 9: Basic Troubleshooting

    E150P Phase Control The Phase Control determines bass output at the listening If at some time in the future whether the subwoofer’s pis- position. you happen to rearrange your ton-like action moves in and listening room and move your Remember, every system,...

  • Page 10: Exploded View/Parts List

    E150P Amplifier – Not for Sale Exploded View Ref# Part Number Description 350883-001 MANUAL, OWNER-E150P/E250P 350884-002 CARTON,MASTER-E150P (BEECH MODEL) 350884-001 CARTON,MASTER-E150P (BLACK MODEL) 350884-003 CARTON,MASTER-E150P (CHERRY MODEL) 350885-001 PAD,END,TOP-E150P 350885-002 PAD,END,BOT-E150P 338381-001 WARRANTY CARD,1/5YR,JBL 351348-001 PLATE,LED/LOGO-E150P/E250P 338125-002 ASY,LED-E150P/E250P 336486-001 ASY,FOOT,PLSTC- E150P...

  • Page 11: Test Set-Up And Procedure

    E150P TEST SET-UP AND PROCEDURE General Function UUT = Unit Under Test 1) Connect one line level input cable (RCA) from signal generator to either Right or Left Level input on UUT. LEVEL control should be full counterclockwise (MIN). Make sure the LFE/Normal switch is in the NORMAL position.

  • Page 12: Amplifier Block Diagram

    E150P...

  • Page 13: Tech Tip Jbltt2003-04

    In the event you need to replace MOSFET transistors Q18 or Q22 as part of a repair, it is important to use ONLY the JBL part# FE106401110 or only the brands: International Rectifier, or Fairchild. Replace both Q18 and Q22 MOSFET’s in the circuit, even if only one seems to be damaged.

  • Page 14: Detailed Troubleshooting

    E150P DETAILED TROUBLESHOOTING A. Power Amp Section Resistance from S+ (SPK O/P) to GND should be >1M Ω (NO LOAD) Resistance Check Resistance from V+ (C6 P+) to V- (C8 P-) gradually Fully CHARGED should read >10k Ω Resistance from V+ (C6 P+) to S+ (SPK O/P) should read >1MΩ...
  • Page 15 E150P DETAILED TROUBLESHOOTING (CONT'D) - Voltage measurements OP AMP SPEAKER U2(1) U2(14) U2(8) U3(7) U3(1) U3(14) U3(8) U5(7) U5(1) 133.6mV 200.2mV 245.9mV 314.8mV 314.9mV 350mV 1.67V 1.452V 2.098V 15.3V 2. High Level Input Sensitivity -Set up Turn level, X’OVER FREQ POT Fully CW and LFE switch off Set Generator at 1.15V@50Hz...
  • Page 16 E150P DETAILED TROUBLESHOOTING (CONT'D) FLOW CHART CAUTION : SPEAKER OUTPUT IS FLOATING AND IS NOT PROTECTED AGAINST A SHORT TO GROUND. ALL TEST INSTRUMENTS CONNECTED TO THE OUTPUT MUST BE FLOATING. ATTACH THE SCOPE PROBE TIP TO S - and REFERENCE LEAD TO S+.

  • Page 17: Drawings

    E150P...
  • Page 18 E150P...
  • Page 19 E150P...
  • Page 20 E150P...

  • Page 21: Electrical Parts List

    E150P E150P Electrical Parts List Part Number Description Reference Designator Resistors 020-000498-120 Carbon Film 0R 1/4W J R10,11 021-100401-120 MOF Resistor 1K 1W J R103 021-820303-020 MOF Resistor 820R 3WS J 8x20 R6,9 022-500003-020 KNP Resistor 0R05 3WS J FK TYPE...
  • Page 22 E150P Part Number Description Reference Designator 024-470798-120 SMD Resistor 4M7 1/8W J 0805 024-560498-120 SMD Resistor 5K6 1/8W J 0805 R40,41 024-604598-100 SMD Resistor 60K4 1/8W F 0805 024-620398-120 SMD Resistor 620R 1/8W J 0805 R16,18,57 024-680498-120 SMD Resistor 6K8 1/8W J 0805...
  • Page 23 E150P Part Number Description Reference Designator 051-222200-100 NPN Transistor PN:MPS2222ARLRA TO-92 051-290700-100 PNP Transistor PN:MPS2907A RLRA TO-92 Q19,23 051-540101-000 PNP Transistor PN:2N5401 TO-92 051-555100-000 NPN Transistor PN:2N5551 TO-92 051-640001-000 MOSFET N-Channel PN:IRF640N TO-220 (IR) Q18,22 052-400080-000 Bridge Regulator PN:RS804 400V,8A 053-211100-000 IC;DIP,Driver...
  • Page 24 E150P Part Number Description Reference Designator 072-040096-000 Terminal (t=0.8mm) PC187(0.8) 072-040169-000 Connector 2 PIN JS-1001-2 P:2.5mm 072-060170-000 B.P. W / Accessory parts 073-032316-601 Black anodized 70x42x20mm 073-050001-000 Fuse Clip P/N:CFFH1206 074-020018-000 Rocker SW PN:RF1003-BB4-0 074-030002-000 Toggle SW PHASE PN:L101-T2B4QE 074-300018-000...

  • Page 25: Ic/Transistor Pinouts

    E150P Semiconductor Pinout Diagrams 2N5401 MOSFET IRF640 OPAMP, QUAD Q18, 22 TL074CDR U2, 3 3 Collector 1. G Base 2. D 3. S 1 Emitter MPSW06RLRA, MPSW56RLRAMPQ, MPS2222ARLRA, OPAMP, DUAL 2N2907A, 2N5551, TIP31C TL072CDR SO-8, Q2, 16, 3, 21, 19, 23, 17...

  • Page 26: Schematics

    E150P NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND...
  • Page 27 NOTE: THIS VOLTAGE IS REFERENCED TO -V, NOT CIRCUIT GROUND E150P...

  • Page 28: Packing

    E150P Packaging Ref# Part Number Description 350883-001 MANUAL, OWNER-E150P/E250P 350884-002 CARTON,MASTER-E150P (BEECH MODEL) 350884-001 CARTON,MASTER-E150P (BLACK MODEL) 350884-003 CARTON,MASTER-E150P (CHERRY MODEL) 350885-001 PAD,END,TOP-E150P 350885-002 PAD,END,BOT-E150P 338381-001 WARRANTY CARD,1/5YR,JBL 351219-001 ASY, GRILLE, BLK, FRNT...

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