Leprecon LP-2000 - Manual (Page 45)

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not damage the LP-2000, it is a good idea to allow the console to
reach a reasonable temperature before turning it on. Very cold
weather will cause condensation to form when the console is brought
into a warmer room. In this case, simply let the board warm up before
turning it on; this will allow the moisture from condensation to
evaporate before power is applied. In extreme heat and sunlight, it
is best to keep the console shaded from direct sunlight, and under
cover when not in use. Internal temperatures in excess of 100 degrees
Fahrenheit may cause erratic operation, and direct sunlight will make
the lighted display screen all but unreadable.
Breakdowns
Like any piece of electronic equipment, the LP-2000 is subject to
breakdowns under extreme conditions. Problems can result from
mechanical wear, such as broken faders and buttons. These can be
easily replaced by a competent service technician. Spare parts are
available from your dealer, or directly from Leprecon.
If other problems seem to exist, first make sure that you understand
the normal operation of the console. Production updates and software
revisions may change the features of the console somewhat. Review the
manual and read any update notes that may have been issued with
software changes.
Microprocessor crashes can result from electrical line noise, static
electricity, or other transient occurences. These can be cleared by
pressing the red Reset switch on the back panel of the LP-2000. As
the console resets, the processor will test the memory chips. Watch
the display during this time; if any chips are bad, a message will
alert you to this fact. If pressing the reset button does not restore
normal operation, try turning the power off, waiting about five
seconds, then turning the power back on.
If damage from rough handling is suspected, for example if the console
works fine one night, but won't even turn on the next, carefully open
the console and look for loose ribbon cable connectors. It is
essential that the power cord be removed from the console whenever the
front panels are opened.
Troubleshooting failures in the electronics of the console is much
more of a challenge. The entire front panel can be removed, and
transferred to a bench for servicing of the printed circuit boards.
It is important that anyone working on the electronics of the LP-2000
be familiar with the repair of digital equipment.
Fuse Location and Replacement
The LP-2000 uses a 5x20 mm miniature fuse of a 2-amp rating. The fuse
is located within the AC inlet on the back of the console. To change
the fuse, remove the power cord and pry out the small fuse drawer
located in the lower part of the inlet. A spare fuse is stored in the