User's Manual

PDL-4 A.C.ID-M System (with GPS) User Guide
Page 4
In Direct Selection mode, and when using other
screens requiring selection from a list, rotate the Gain
Control to move the highlight bar up or down. Rotate
the gain control to adjust the contrast when the
Contrast screen is displayed.
Speaker Sounds
The volume is controllable in four steps: Off, Low,
Medium and High, via the menu system.
PDL-4
The speaker sounds are as follows:
1. At switch-on, the speaker will generate a
continuous tone for 1 second, at the volume
setting last used. If the volume is set to Off, the
tone will still be generated, but at the lowest
audible level.
2. Whenever a key is pressed, the speaker will
generate a confirmation "beep". If the key has a
secondary "press and hold" function a higher
tone beep will also be generated as soon as the
secondary function is initiated.
3. When locating a cable in Null (Left/Right) mode,
the speaker will generate a pulsing tone when
the cable is to the left of the PDL-4, and a
continuous tone when the cable is to the right.
4. When locating a cable in Peak mode, the
speaker volume will increase as the cable is
neared.
5. When locating a cable in Power mode, the
speaker will generate "Signal Sound" - derived
from the signal detected, at amplitude
proportional to the signal amplitude.
6. Whenever the PDL-4 detects an error condition
during a self-test, or at any other time, the
speaker will generate the standard low-
frequency "Error" tone. This will be a short
"beep" if a non-functional key is pressed, or will
be for 2 seconds if an error condition is
detected.
7. Whenever it is necessary to alert the user, the
speaker will generate the standard "Alert" tone.
This will be a repeating cycle of 5 rapid "beeps"
followed by a four-second pause. The Alert
tone will always be generated at the highest
audible level, regardless of the speaker volume
setting.