Oscillator/Talkback Signal Output - Yamaha PM 5000 Owner's Manual

Oscillator/Talkback Signal Output

The oscillator is capable of producing continuous or burst-output pink noise, or sine wave signals from 20 Hz through 20 kHz.
Engage the oscillator section [PINK] switch to generate
pink noise. If the [SWEEP/BURST] switch is off the
pink noise produced will be continuous. When the
[SWEEP/BURST] switch is engaged the control
immediately above it can be used to set the burst-output
interval from 1 second through 20 seconds. The length of
each pink noise burst is fixed at 200 milliseconds.
To generate sine-wave signals disengage the [PINK]
switch. To select the sine-wave frequency, use the [10k],
[1k], or [100] frequency selector. If the [SWEEP/
BURST] switch is engaged the control immediately
above it can be used to vary the selected frequency from
0.2x through 2x (in 120 steps), thus making the entire
audible spectrum from 20 Hz through 20 kHz available.
When the [OSC ON] switch is engaged the oscillator
signal is output at the level determined by the oscillator
[LEVEL] control (make sure the talkback section [ON]
switch is disengaged).
NOT E
The current oscillator setting – sine wave frequency or burst
interval – can also be visually confirmed via the digital control
section message display when no other message is being
displayed.
To deliver a talkback signal via the TB bus an
appropriate microphone must be plugged into the
INPUT connector (input level = –50 dB). When using a
phantom-powered microphone engage the [+48V]
switch to supply +48-volt phantom power to the INPUT
connector. The [ ] switch engages an 80-Hz high-
pass filter for the microphone connected to the INPUT
connector to cut out unwanted low-frequency noise.
When the talkback [ON] switch is engaged the talkback
signal is output at the level determined by the talkback
[LEVEL] control.
N OTE
In order to supply phantom power to the talkback INPUT
connector the rear-panel [+48V MASTER] switch must be turned
on. When the [+48V MASTER] switch is on the +48V MASTER
ON indicator on the left side of the meter bridge will light.
Oscillator and Talkback Section
39