Leprecon LP-2000 - Manual (Page 46)

46
drawer. Fuses that blow repeatedly are a sign of trouble that needs
to be fixed. Do not replace the fuse with one of a higher rating!
Battery Replacement
The LP-2000 uses a lithium battery to retain its memory while the
console power is off. This battery should last at least one year.
The console automatically performs a battery test each time the power
is turned on. A low battery message on the display means that the
battery should be replaced as soon as possible.
It is possible to replace the battery with the console power on.
Otherwise, removing the battery will clear all of the LP-2000's
memory, so any stored presets and chases will be lost. The best
solution, with an LP-2000 Cue Plus, is to save this data to disk
before the battery is removed.
The battery is located in a holder on the main CPU circuit board,
located on the left side of the console under the panel containing the
Master fader and display screen. Remove the dark gray trim strip
cutting across the center of the console, and remove the screws
holding down the master panel and the panel immediately to its left
(either the chase, SoftPatch/Cue Plus, or a blank panel). Tip back
the panels to reveal the silver, quarter-sized battery. With a small
plastic prying tool, push the battery up and out of the socket. The
new battery should be installed without touching it with your bare
fingers. Make sure that the positive (+) side is on the top. Slide
the new cell into the holder, and close up the console.
After a low battery has been replaced, the low battery warning will
still be shown one more time on the display screen. Turning the board
off and on a second time will clear this message.
Analog Output Trim (Analog Option Only)
If your LP-2000 is equipped with the optional analog output, it was
calibrated at the factory to a 0-10 volt trim. It is possible to
readjust this trim to allow the console to be used with non-standard
dimmers, within the range of 0-3 volts at minimum and 5-12 volts at
maximum. Re-trimming the board requires a DC voltmeter and a small
flat-blade screwdriver.
To readjust the trim:
(1) Attach the DC voltmeter to the output connector. The common
(black) lead should connect to pin 27 on the Cinch-Jones
connector, or to pin 37 on the Socapex connector. Attach the red
lead of the voltmeter to pin 1, which is output channel 1.
(2) Remove the dark gray trim strim in the middle of the console.
Remove the screws in the top edge of the panel where the X and Y
channel faders are located, and tip the panel forward.