elektraLite CP20 - Manual (Page 52)

51
TROUBLESHOOTING
& SERVICE
There are no user-serviceable parts inside the CP20. Any internal problem should be referred to a qualified
service technician.
Cleaning and Maintenance
As with any type of control console, keep drinks away from the CP20. If you need to clean the front panel
use a soft cloth. If necessary you can spray a small amount of glass cleaner on the cloth. Do not spray
directly on the CP20. Do not spray electronic cleaners into the faders. Refer fader and switch maintenance
to a service technician.
Power Supply
If the CP10xt will not turn on, check the external power supply. There is no fuse inside the CP20. If the
power supply should ever fail or become lost, only replace it with a U.L. or CE approved one with the
same voltage and power rating. The supply must provide 9 volts DC at minimum 1.25 Amp. The plug has
a 2.1mm hole with + voltage at the center.
Battery
The CP20 uses a battery to maintain its memory. On power up the battery voltage is always checked and
the following message will be displayed if the battery voltage gets low.
WARNING, BATTERY
VOLTAGE BELOW 2V
If this happens, take the CP20 to a qualified service center to have the battery replaced. The battery can be
replaced without losing the memory as long as it is carefully removed and replaced with the power on.
Nevertheless it is always a good idea to back up your memory to disk in case of any possible memory loss.
DMX512
If your fixtures are not responding to the CP20 check the dipswitches on the fixtures and refer to their
instructions to make sure they are set properly. Also check your cabling and connectors for opens or
shorts. Never connect the shield of your DMX cable to the shell of the connector. If you are running long
lines you need to terminate the last fixture in your DMX512 chain with a special termination plug. If you
don't have one you can make one by taking a 5 pin male XLR plug and soldering a 120-ohm resistor
between pins 2 and 3. Plug this into the unused signal thru connector on the last fixture in your DMX512
chain. Check also pin two and three which pin is “hot” (+) and which pin is negative (-). I have seen
fixtures flash leds to say they have a good DMX signal and found that pins two and three are reversed
compared to the CP20’s output!! Remember pin 2 to data (-) minus and pin 3 to data (+) plus.
Website
Please go to www.myelektralite.com for the latest software updates and a complete list of the fixtures
stored in the CP20 library.
Chapter Chapter
11