JBL Studio S120PII, Service Manual

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- CONTENTS -
BASIC SPECIFICATIONS …………….……..…………..1
DETAILED SPECIFICATIONS ……….……..…………..2
CONNECTIONS………………………...……..…...…..…4
OPERATION ……..………………….……...…….….…...7
BASIC TROUBLESHOOTING..…………………… ……8
BULLETIN JBL2003-06………..…………….………..….9
S120PII AMPLIFIER BLOCK DIAGRAM………………10
S120PII EXPLODED VIEW…………….…………….....11
S120PII TEST SET UP AND PROCEDURE….……....12
S120PII ELECTRICAL PARTS LIST ..……….…….….13
P.C.B. DRAWINGS….……………………………...…….20
S120PII IC/TRANSISTOR PINOUTS..……..….…….….22
S120PII SCHEMATICS………..…………….……….….23
S120PII PACKAGE……………………………………....27
JBL S120PII SPECIFICATIONS
Amplifier Power (RMS): 400 Watts
Driver: 12" PolyPlas™ (polymer-coated cellulose
fiber) (4.4 ohms DCR)
Inputs: Line Level (switchable to LFE), BassQ™ and
Speaker Level
Outputs: BassQ and Speaker Level (High-Pass)
Low-Pass Frequency: Continuously variable from 50Hz – 150Hz
High-Pass Frequency: 150Hz when using speaker-level outputs
Frequency Response: 22Hz – Low-pass crossover setting
Dimensions (H x W x D): 17-3/16" x 16-3/16" x 18" (19" with grille)
(with feet, without spikes) 437 x 411 x 457mm (483mm with grille)
Weight: 56 lb/25.5kg
All features and specifications are subject to change without notice.
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