User manual

dCS 950 / 952 User Manual Manual for Software Version 6.2x
dCS Ltd 22
nd
May 2000
Manual part no: DOC0029526B1 Page 20 Document No: OS-MA-D0002-952.6B1
Contact dCS on + 44 1799 531 999 email to: [e-mail]
(inside the UK replace + 44 with 0) web site: www.dcsltd.co.uk
Ref In -
This feature is available on the dCS 954 only. -
Tone -
This accesses a Tone Generator, whose level and frequency can be adjusted.
Pressing Set enters a submenu, which accesses the following functions:
Level The output level in dB0. It can be changed in 0.1dB
steps using the Up and Down buttons. Press Set
to accept the change. The rate of change
accelerates if the button is held down. The range is
from 0dB0 to –120dB0.
Freq The output frequency, in kHz. It can be changed by
using the Up and Down buttons. Press Set to
accept the change. The rate of change accelerates
if the button is held down. The step size becomes
progressively smaller below 1kHz.
On/Off Toggles whether the Generator is On or Off.
Up Allows the menu to be re-entered to set other
functions. Alternatively, if left, the menu will just
time out, keeping the last settings.
The frequency range is from 1Hz to 99kHz but the level rolls off at the extremes,
due to anti-image filters in the analogue circuitry. The Generator output level is
less than 0.1dB down from below 10Hz up to 50kHz.
The Tone Generator will work without a digital input. If locked, the unit will be
unlocked when the Generator is turned on. At power up, the Generator is always
set to Off, 1kHz and –18dB0 – this is a safety measure.
IMPORTANT! To avoid damage to your ears, loudspeakers and power amplifiers, use the
Tone Generator with care .
Sys -
System phase check. This turns on a full-scale test signal for checking absolute
output phase on an oscilloscope.
IMPORTANT! To avoid damage to your ears, loudspeakers and power amplifiers, use the
Sys option with care . Turn your system volume level well down before using
this feature!
Turn this option On, the display will flash Sys On and the waveforms shown
below will appear on the analogue outputs. The top waveform is from the left
channel, the bottom is from the right.