Dbx 1 bxds service manual

Page 2

CONTENTS

PERFORMANCE TEST
ADJUSTMENT POINT
BLOCK DIAGRAM
SCHEMATIC DIAGRAM

WIRING BOARD LAYOUT (1) Component Side View . . .
WIRING BOARD LAYOUT (2) Foil Side View

WIRING LAYOUT . . . . . .
EXPLODED VIEW . . . . .
REPLACEMENT PART LIST . .

.................

SPECIFICATIONS
OELECTRICAL
Frequency response(20 Hz to 20 kHz)..... +l-0.5 dB(no expansion)
Total harmonic distortion ......... 0.152 any setting

Intermodulation distortion . . . . . . . . . . . . .

Dynamic range(below 1V) . . ......... . . . . ..
Equivalent input noise .................
Maximum input ...... . ........ . ....... . . .
Maximum output .........................
Expansion(to 502 increase) . . . . . . . . . . . . .
Impact recovery(to potential +10 dB). . . .
Compression(overeasy, from none to 2:1).

0.12 any setting(IHF)

0.12 any setting(SMPTE)

Variable 101 dBV to 115 dBV

-90 dBV(no compression or expansion)

6 Vrms

6 Vrms

12 dB upward and 20 dB downward(maximum)
Program-dependent

6 dB of gain(maximum)

Ambience(at around 1 kHz) .............. Adds or subtracts L-RlR-L, with decreasing
effect toward bass and treble

Transition level(set at 200 mV) ........ . Ranges from 70 mV to 600 mV

OGENERAL

Dimensions(W x H x D) ............. 19(17-1/8") x 1-31/32" x 8-3/4"
483mm(435mm) x 50mm x 222mm
(without rack mounting bracket)

Weight ................................. 5.95 lbs.
2.7 kg.

Power consumption .................... .. 10 W

Power requirement ...................... 100-120 V/220-240V, 50/60 Hz

Notes 2 IHF IMD is meaSured with 19 kHz and 20 kHz mixed 1:1. output 1 V.
SMPTE IMD is measured with 60 Hz and 7 kHz mixed 4:1, output 1 V.