Daktronics AB-1600-1.5,2.5 - Manual (Page 71)

Maintenance & Troubleshooting
4-27
4.17 Cleaning the Signal Connectors
If it becomes necessary to remove or replace a signal cable, clean the plugs and the circuit board jacks
with DeoxIT (Daktronics part number CH-1015). Inspect and clean the jacks and plugs thoroughly to
ensure the absence of any foreign matter. The presence of dirt or water may cause signal interconnect
problems.
After the parts are cleaned, push the plug into a jar of CaiLube (Daktronics part number CH-1019),
ensuring the paste wets the plug to a depth of at least
1
/
8
” on all four sides. Also, check to make sure
all of the pinholes of the plug are filled with paste and that sufficient paste is present to form a “V” on
the end of the plug. There should be enough paste on the end of the plug to form a weatherproof seal
(from the paste pushed out around the jack) when the plug is inserted into the circuit board jack.
DeoxIT is the electrical contact cleaner in an aerosol can and CaiLube is the electrical contact
lubricant and protector paste in a 1 oz jar. Both can be found in the Tool Kit Accessories package.
CaiLube also comes in an 8 oz jar (Daktronics part number CH-1021). If additional supplies are
needed, contact Customer Service for ordering information.
4.18 FCC Modem Notice
The modem on the Venus interface complies with Part 68 of the FCC rules and regulations. With each
device shipped, a label contains, among other information, the FCC Registration number and Ringer
Equivalence Number (REN) for this product. Upon request, the customer must provide this information
to the telephone company.
The REN is useful to determine the number of devices that may be connected to a telephone line and
still have all of these devices ring when the number is called. In most, but not all areas, the sum of the
RENs of all of these devices connected to one line should not exceed five. To be certain of the number
of devices that may connect to the line, as determined by the REN, the customer should contact the
local telephone company to determine the maximum REN for the calling area.
If the system causes harm to the telephone network, the telephone company may temporarily
discontinue service. If possible, they will notify the customer in advance. If advance notification is not
practical, the customer will be notified as soon as possible. The telephone company may make changes
in its facilities, equipment, operations or procedures that could affect proper functioning of the
equipment. If this is done, the customer will be notified in advance to give enough time to maintain
uninterrupted telephone service.
If trouble is experienced with this device, please contact Daktronics customer service for information
on obtaining service or repairs. The telephone company may ask to disconnect this device from the
network until the problem has been corrected or until it is certain the device is not malfunctioning.
The device may not be used on coin service lines provided by the telephone company (this does not
apply to private coin telephone applications which use standard telephone lines). Connection to party
lines is subject to state tariffs.