JBL PowerBass PB12 User manual

JBL Incorporated
250 Crossways Park Dr.
Woodbury, New York 797
REV210/2001
PowerBassTM Series
PB12Subwoofer
SERVICE MANUAL

PB12
TABLE OF CONTENTS
Safety Information ……………………………………………………….3
Basic Specifications ………………………………….………………….4
Detailed Specifications ………………………………………………….5
Controls and their Function …………….……………………………….6
Speaker Connection …………………….……………………………….7
Operation ………………………………….….………………………….10
Troubleshooting………………………………………………………….11
Test Setup and Procedure ……………………………….…………….12
Service Bulletin JBL 2001-03 ………………………………………….13
Service Bulletin JBL 2001-05 ………………………………………….14
Service Bulletin JBL 2001-07 ………………………………………….15
Exploded and Packaging ………………………………...…………….16
Amplifier Exploded View ……………………………………………….17
Amplifier Faceplate …………………………………..…………………18
Integrated Circuit Diagrams…………………………………………….19
Testing Procedure…………………………………….…………………20
Electrical Parts List (PCB version 6.3 – 7.0)………………………….23
Electrical Parts List (PCB version 7.2) …………………………..……28
Printed Circuit Boards (PCB version 6.3 – 7.0)…… ……...…..…….32
Printed Circuit Boards (PCB version 6.4)………..… ……...…..…….35
Printed Circuit Boards (PCB version 7.2)…… ……...……………….36
Schematics
Preamp (PCB version 6.3 – 7.0)…………………… ………….39
Power Amp (PCB version 6.0 – 6.3)…………..……………….40
Power Amp (PCB version 7.0)………………………………….41
Preamp (PCB version 7.2)…………………………….. ……….42
Power Amp (PCB version 7.2)………………………………….43

PB12
3
SAFETY INFORMATION

PB12
4
BASIC SPECIFICATIONS PB12 Subwoofer

PB12
5
DETAILED SPECIFICATIONS PB12 Subwoofer