Jbl sub 125 a service manual

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jbl sub 125 a service manual

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Page 1

JBL SUB125/125a

Amp Iifier/Subwoofer

@EWWE MMME

JBL Consumer Products Inc.
250 Crossways Park Drive
Woodbury, NY. 11797

A Harman Internat oooooooooooo

Page 2

Amplitier/Subwoofer SUB125
The SUB125 is part of the SCS125/125a system

TABLE OF CONTENTS

COVER ........................................................................... 1 Service Bulletin JBL9901 .......................................... 10
GENERAL SPECIFICATIONS ....................................... 2 SCS125/1253 PACKING .............................................. 11
TABLE OF CONTENTS ................................................. 2 SUB125 EXPLODED VIEW ......................................... 12
SCS125/125a SPECIFICATIONS .................................. 3 SUB125 PCB COMPONENT SIDE ............................. 13
CONTROLS AND THEIR FUNCTION ........................... 5 SUB125 PCB SOLDER SIDE ...................................... 14
SCS125/125a SPEAKER LEVEL CONNECTIONS ...... 6 SUB125 ELECTRICAL PARTS LIST .......................... 15
SCS125/125a LINE LEVEL CONNECTIONS ............... 7 SUB125 INTEGRATED CIRCUIT DIAGRAMS ........... 17
SUB125 TEST SET UP AND PROCEDURE ................ 8 SUB125 POWER AMP SCHEMATIC DIAGRAM ........ 18
SIMPLE TROUBLESHOOTING ..................................... 9 SUB125 PRE-AMP SCHEMATIC DIAGRAM .............. 19

GENERAL SPECIFICATIONS

SCS125/125a System

Frequency Response

35Hz - 20kHz (-GdB)

SUB125

Amplifier . . 75 watts RMS

Bass ..... 8" woofer, bass-reflex enclosure

Dimensions (H x W x D)
14-1/8 x 13 x 13 inches
359 x 330 x 330mm

Weight . . . 27.5 lbs/12.5 kg

Refinements may be made on occasion to existing products without notice,
but will always meet or exceed original specifications unless otherwise stated.