Plm Series Features; Front Panel Overview - Lab.gruppen PLM Series Operation Manual

6.1 Front Panel overview

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Figure
6-1
The PLM's front panel is based around a 2.5" daylight-
readable 128 x 128 pixel backlit liquid crystal display
(LCD), through which control and monitoring of most
of the PLM's functions are performed via a simple
menu system. Controls are grouped in two switch
clusters alongside the display; these include a number
of dedicated-function keys (such as METER and
MENU), eight "soft" keys (functions vary according
to the current display page), and a data entry wheel
(rotary encoder).
Handles
Two sturdy metal handles are fitted to the front panel.
The handles always should be used when carrying
the PLM and fitting it in or removing it from a rack.
Ensure that any door or removable rack front cover
has sufficient depth to clear the handles.
Dust Filters
Two dust filters are fitted behind metal covers. To
remove the covers, loosen the thumbscrews located
behind the front handles. Once detached, the dust
filter elements can be removed for cleaning. See
section 12.2 for information on cleaning the dust
filters.
The device never should be operated
without the dust filters in place.
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6 QUICK GUIDE OVERVIEW
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PLM SERIES
12
Display
The display will illuminate when the PLM is active.
Many of the traditional controls, and displays found on
conventional amplifiers are replaced on the PLM by a
simple set of on-screen "pages", which allow all PLM
operating parameters to be monitored and controlled.
PLM functions are controlled with the eight "soft"
keys immediately adjacent to the display, together
with the single rotary encoder knob. Primary fault and
status indications are given by multicolor LEDs.
The display is protected by a tough, transparent
plastic film, which may be cleaned with a soft cloth;
solvents should not be used.
The layout of various display "pages" is standardized
to a high degree for ease of use. In general, each
page is divided into two columns of four blocks,
with the left-hand column referring to inputs and
the right-hand to outputs. Each block has four rows
of data, which can be either alphanumeric or in the
form of a bargraph meter.
Comprehensive details of the various display pages
and the associated controls are given in section 9 –
Front Panel Interface.
standby
The PLM is powered on and off by the top left-most
button, STANDBY. See Dolby Lake Controller User
Manual PLM Edition Addendum (sections 5.3.1
and 5.7) for further information regarding local and
remote power control.
PLM Series Operation Manual 13
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