Lexicon LEXICON480LV4 Owner's Manual page 139

Lexicon 480L Owner's Manual
Solving Problems
When I try to use a cartridge, the 480L tells me that the
cartridge is not formatted.
Before a cartridge is used for the first time, it must be
formatted. While this is generally done at the Lexicon
factory or by your dealer, it is possible that you have
obtained an unformatted cartridge.
To format a cartridge:
1. Press CTRL to enter the control mode.
2. Press PAGE, 2 to go to page 2.
3. Use the FUN slider to select the format function.
4. Hold down STO and press REG to format the
cartridge.
Important! A cartridge cannot be formatted if the
register protect function is activated, or if the
cartridge's memory protect switch is ON.
My 480L was just upgraded to a new software version,
and my cartridges no longer work.
Some (but not all) software improvements may be
incompatible with cartridges formatted with older soft-
ware. To make a cartridge usable again, it must be
reformatted as described above. This will erase the
old contents of the cartridge.
When connected to the effects loop on my console,
turning up the console's effects send and returns just
makes the dry signal louder--I don't hear any effects
from the 480L.
Assuming that your system is wired correctly, the
problem is probably that the Wet/Dry Mix control on the
registers you are using has been set to 100% dry. Set
it to 100% wet and try again.
LARC displays "Mainframe Link Failed" message.
When you first power up, all four indicators on the Host
card should light up momentarily, and then go off. If
they don't, contact Lexicon Customer Service. If ROMs
have been changed recently, make sure all pins are
B-2
inserted in their sockets correctly. Make sure that Host
board is correctly seated in its socket. Make sure the
LARC cable is correctly connected. Check line voltage.
Inadequate line voltage will prevent the 480L from
powering up normally. Finally, check to see if a LARC
port has been accidentally connected to the automa-
tion port. Connection of a LARC port to the automation
port will blow an internal power supply fuse and shut
down the 480L.
My 480L loses register contents.
The most likely cause is dead batteries on the Host
card. Contact Lexicon Customer Service for infor-
mation. Another possibility is a blown fuse. The LARC
fuse is accessed by removing all of the cards. There are
two fuses on the backplane. The lower fuse is the
automation fuse and the upper fuse is the LARC fuse.
The automation fuse is currently unused, and can be
used as a spare LARC fuse. The power supply fuses
are inside the unit and can only be accessed by
removing the top cover. The +5V power supply fuse is
on the left side of unit, and the +15V power supply
fuses are near the rear.
My 480L cannot run more than one program at a time.
Whenever I try to control Machine B, the message "Not
enough HSPs" appears.
There are four possibilities. Your machine is missing
one HSP board (two are required to run two programs
simultaneously); one of the two HSP boards is not
seated correctly; or one of the two HSP boards is
malfunctioning. Finally, you may be attempting to run a
program (such as the stereo sampler) which can only
run when the 480L is in the SINGLE configuration.
I tried to use Digital I/O, and it is extremely noisy and
distorted. Sometimes it doesn't work at all.
In the course of shipment the phase locked loop (PLL)
may have become misaligned. With external word
clock connected and selected, use a small insulated
screwdriver to adjust the trimmer capacitor on the far
right hand side of the Host Card until undistorted audio
passes. Find the extremes where the PLL goes out of
lock, and then set the pot for the center of this range.
If this fails to correct the problem, but the status slider
indicates that external word clock is present, you may
have excessive noise in the digital interface. This
problem should be referred to a qualified service tech-
nician for diagnosis and correction.