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JBL Northridge E-Series E150P User Manual

JBL Northridge E-Series E150P
31 pages
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Models:
Northridge
E-Series E150P
Performance Series P10SW
Powered Subwoofers
Service Manual
JBL Consumer Products
250 Crossways Park Dr.
Woodbury, New York 11797 Rev4 4/2006
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JBL Northridge E-Series E150P Specifications

General IconGeneral
Power Output150 Watts RMS
Frequency Response27Hz - 150Hz
SeriesNorthridge E-Series
ModelE150P
Enclosure TypeBass-reflex
Crossover Frequency50Hz - 150Hz
InputsLine-level, LFE
Driver Size10" (250mm)

Summary

Service Manual

Safety Information

List of Safety Components Requiring Exact Replacements

Identifies critical components that must be replaced with exact matches for safety.

E150P Packaging

P10SW Packaging

E150P/P10SW Powered Sub/ Plate Amp Specifications

Speaker Connection

Analog Receiver/Processor – Speaker-Level Connections

Guide for connecting speakers using analog receiver/processor speaker-level outputs.

Line-Level and LFE Connections

Analog Receiver/Processor – Line-Level Connections

Guide for connecting via line-level outputs with analog receivers/processors.

Digital Receiver/Processor – LFE Connection

Guide for connecting via LFE output with digital receivers/processors.

Operation

Level Control

Adjusts subwoofer volume relative to the rest of the system.

Crossover Adjustments

Determines the highest frequency the subwoofer reproduces.

Phase Control

Troubleshooting

High-Level Input Sound Issues

Diagnoses no sound issues when using speaker-level inputs.

Low Bass Output Issues

Diagnoses low or no bass output issues.

Line-Level Input Sound Issues

Diagnoses no sound issues when using line-level inputs.

E150P Exploded View

P10SW Exploded View

Test Set-Up and Procedure

System Aural Sweep Test

Procedure for testing the subwoofer's audio response using a sweep generator.

Sweep Function Testing

Steps for testing the sweep function of the subwoofer.

Driver Function Testing

Procedure for testing the driver's mechanical function.

Schematics

Service Bulletin # JBL2005-01

'Chirp' Noise on Power-Up Modification

Addresses a 'chirp' noise issue occurring during subwoofer power-up.

Tech Tips

Replacing MOSFETS Q18, Q22

Guidance on replacing specific MOSFET transistors for repairs.

Detailed Troubleshooting - Power Amp Section

Power Amp Section Checks

Includes resistance checks, LED status, DC operation, and switching frequency measurements.

Pre Amp Section Checks

Includes line level input sensitivity testing.

Detailed Troubleshooting - Pre-Amp & Other Functions

High Level Input Sensitivity Testing

Procedure to test high-level input sensitivity.

Low-Pass Filter Testing

Procedure to test the low-pass filter function.

LFE Function Testing

Procedure to test the LFE (Low Frequency Effects) function.

Troubleshooting Flow Chart

120v Electrical Parts List

Semiconductor Pinout Diagrams

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