JBL E250P, Руководство по обслуживанию

Страница: 2 / 28

- CONTENTS -
BASIC SPECIFICATIONS …………….……..…………..1
SAFETY INFORMATION …………….……..….………..2
DETAILED SPECIFICATIONS ……….……..…………..3
CONNECTIONS………………………...……..…...…..…4
OPERATION ……..………………….……...…….….…...7
BASIC TROUBLESHOOTING..………….………………8
EXPLODED VIEW/PARTS LIST…….….….…………....9
TEST SET-UP AND PROCEDURE….….……………...10
AMPLIFIER BLOCK DIAGRAM…….………….……..…11
TECH TIP JBLTT2003-04 ..……….……………….…...12
DETAILED TROUBLESHOOTING..……………… ……13
P.C.B. DRAWINGS….…………………………………….16
ELECTRICAL PARTS LIST ..……….……….……….…20
IC/TRANSISTOR PINOUTS..……..….…….….….….….24
SCHEMATICS………..……………………….…………..25
PACKING……..……………………………….….….…...27
E250P SPECIFICATIONS
Amplifier Power (RMS): 250 Watts
Peak Dynamic Power *: 550 Watts
Driver: 12" (305mm) PolyPlas™
Inputs: Line Level (switchable to LFE) and Speaker
Level with 5-way binding posts
Low-Pass Frequency: Variable from 50Hz to 150Hz
Frequency Response: 25Hz – Low-pass crossover setting
Dimensions (H x W x D): 19-3/4" x 14-3/8" x 16-1/2"
(502mm x 365mm x 419mm)
Weight: 43 lb/19.5kg
JBL continually strives to update and improve existing products, as well as create new ones. The
specifications and details in this and related JBL publications are therefore subject to change without
notice.
*
The Peak Dynamic Power is measured by recording the highest center-to-peak voltage measured across the output of a resistive load
equal to minimum impedance of the transducer, using a 50Hz sine wave burst, 3 cycles on, 17 cycles off.
E250P
1