Jbl sub 125 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.