JBL PowerBass PB10, Service Manual

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PB10
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 2001-04 …………………………………………………….14
Tech Tip JBLTT2003-04…………………………………………….…………….17
Exploded View/Packaging ..………………………………………...…………….18
Amplifier Exploded View ………………………………………………………….19
Amplifier Faceplate/Access…………………………………….…………………20
Integrated Circuit Diagrams……………………………………………………….21
Testing Procedures..………………………………….……………………………22
Block Diagram Revision 2…………………………………………………………29
Electrical Parts List (PCB version 6.3 – 7.0)……………… ………..………….30
Electrical Parts List (PCB version 7.2) …………………………...………..……34
Electrical Parts List Revision 2……………………………………..…………….38
Printed Circuit Boards (PCB version 6.3 – 7.0)…… ………………...…..…….41
Printed Circuit Boards (PCB version 6.4)………..… ………………...…..…….44
Printed Circuit Boards (PCB version 7.2)…… ……...………………………….45
Schematics Version 1
Preamp (PCB version 6.3 – 7.0)……………… …………… ………….48
Power Amp (PCB version 6.3)………………… ……………….……….49
Power Amp (PCB version 7.0)…………………………..……………….50
Preamp (PCB version 7.2)……………….…………….……….. ……….51
Power Amp (PCB version 7.2)………………… ……….……………….5
2
Schematics Version 2……………………………………..…………………….…53
PB10 – DIFFERENCES IN REVISION 1 AND REVISION 2
REVISION 1 REVISION 2
Amplifier has main power switch
Amplifier faceplate says “Made in Canada”
Amplifier serial number starts with “AM” Amplifier serial number starts with “HA”
Black (or silver) potted, non-serviceable output module Output transistors in the open, on a large black heatsink
Large plastic cup enclosing the rear of the amp assembly
Main PCB, bottom, solder-side contains all SMD devices
“Made in Mexico” label on outer part of cabinet
BOTH VERSIONS OF THESE AMPLIFIERS ARE NOT CONSIDERED INTERCHANGEABLE; THEY ARE NOT A
DROP-IN REPLACEMENT IN THE CABINET OF THE OTHER VERSION.