Jbl sg 2020 service manual

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jbl sg 2020 service manual

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Page 1

UBL

Soundgear Series

$62020 563030
3 CD Changer Hi-Fi System

PRELIMINARY
SERVICE MANUAL

($62020) (sesoso)

JBL Incorporated, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797

Page 2

CONTENTS

SERVICING PRECAUTIONS ............................... 3

ESD PRECAUTIONS ...................................... 5

SPECIFICATIONS ........................................ 6

ADJUSTMENTS ......................................... 7

TROUBLESHOOTING GUIDE ............................... 9

WAVEFORMS OF MAJOR CHECK POINTS . . . . . . . .. . . . . . .14
WIRING DIAGRAM (SG2020) ................................ 15
WIRING DIAGRAM (SG3030). .............................. 16
BLOCK DIAGRAM (SG2020) ................................ 17
BLOCK DIAGRAM (SG3030) ............................... 18
SCHEMATIC DIAGRAMS (SG2020/3030) ..................... 19
PCB BOARDS ........................................... 35
PACKAGE PARTS LIST (SG2020) .......................... 40
MECHANICAL PARTS LIST (SG2020) ....................... 40
ELECTRICAL PARTS LIST (SG2020) ........................ 43
PACKAGE PARTS LIST (SG3030) .......................... 54
MECHANICAL PARTS LIST (SG3030) ....................... 54

ELECTRICAL PARTS LIST (SG3030) ........................ 57