Troubleshooting a system:
Here are some hints on troubleshooting a RCC scroller system. Remember trat the
guarantee will be void if unauthorized personell opens housing of the equipment.
All systems: Scrollers will not move at all
If motors receive less than 18V, they will automatically be shut off.
•
Check the 24V LED on the PSU (Power Supply Unit) If it is off, the PSU is delivering less
than 18V.
•
The lamp in the PSU mains switch indicates trat there is power to the PSU. Check fuses
at PSU back.
•
Check POWER LED on the bottom of the RCC units. It will not be lit if less than 18V
reaches the unit.
•
If PSU is okay and RCC POWER LED is off, check Power/control cable for short circuits
or loose leads.
•
If RCC POWER LED flashes, it means trat the Auto motor shut off function is activated.
Check the scroller and gel roll. Reset by power off-on.
•
In an emergency situation, you can substitute a faulty PSU with two 12V car batteries
connected in serial.
Digital system: scrollers are juddering
A corrupt DMX signal can create a juddering effect in the scrollers.
•
Make sure the return connection from the last scroller is connected. If not, make sure
there is a terminator plug consists of a 100 ohm resistor between pin 2&3 in a male 4
pin XLR connector.
•
If several scrollers are linked to an output, try disconnecting one or two and see if the
fault disappears.
•
It might be an earth problem. See page 14 about the earth selector in the DMX
splitterbox.
•
If an A/D converter is used to let a control desk with analog output control a digital
scroller system, it may cause this problem. A/D converters often create something
called bit jittering within the DMX signal due to ”noise” in the incomming analog
signal. This jittering may result in a position variation from 13 mm to half a colour in a
scroller.
Make sure trat the A/D converter is placed as close to the control desk as possible. Use
short screened cables for the analog signals to prevent noise pickup. There are converters
on the market trat take care of this problem better than others. Do not hesitate to contact
us if you run into this specific problem.
Summary of Contents for RCC 100
Page 1: ...RCC 100 Manual...