JBL Media Sub2000 Manuale utente

MultiMedia Series Loudspeakers

Media Sub2000

Service Manual

JBL Consumer Products

250 Crossways Park Dr.

Woodbury, New York 11797

- CONTENTS -

SPECIFICATIONS & TEST PROCEDURE……………….….………..1

OPERATIONS & CONNECTIONS……..……..……………...………..2

SERVICE BULLETIN….………..…………….….……………………..3

AMPLIFIER BLOCK DIAGRAM.…………….……..……..…………..4

WIRING DIAGRAM ….………..…………….…..…..……………..5

P.C.B. DRAWINGS….………..…………….………..…..……………..6

VOLTAGE CHART….………..……………………...…..……………..7

EXPLODED VIEW.………..…………….……………..….…………....8

IC DIAGRAMS………………..…………….……….………………….9

MECHANICAL PARTS LIST ..………………………………….…….10

ELECTRICAL PARTS LIST ..………………………………….…..….11

SCHEMATICS ………..……………………..…………………..….13

PACKING ……………….……………………..………….………….14

Media Sub2000 Specifications

Max Power Output 35 watts (@ 1% THD)

Frequency Response 50Hz – 120Hz

Input Sensitivity 3V Maximum

Input Impedance 10k ohms

Signal Input Jack Stereo Mini-Connector (1/8”)

Signal Output Jack Stereo Mini-Connector (1/8”)

Dimensions (H x W x D) 9 5/8 x 5 ¼ x 10 ¾”

(244 x 133 x 273mm)

Weight 7.0 lbs. /3.2kg

TEST PROCEDURE

Media Sub2000

Frequency 20Hz – 600Hz

Input Voltage 0.175V

Volume Maximum

General Function

1. Assure Level control volume is Maximum (full CW)

2. Using sine wave generator sweep unit to range of above frequencies

3. Listen to driver and cabinet for rattles, clicks, buzzes, or other unusual noises

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