NorthStar 961 Reference Manual page 363

Problem
The display screen dims—either slightly or
more—after power has been on for a
certain time.
The display screen dims and also displays
the error message
BACKLIGHTING DIMMED
The 961/962 isn't receiving satellites.
The 961/962 isn't reading differential
signals.
Returning a system
for service
961/962 Operations and Reference Manual, Rev. A
Table 13: Service checklist (continued)
UNIT TOO HOT,
.
Getting an RMA number
Before returning a 961/962 to Northstar for repair, you must
contact either your dealer or Northstar for instructions and a
Returned Materials Authorization (RMA) number. Northstar
will not accept shipments without a proper RMA number. If you
purchased your system through a dealer, call your dealer for
Chapter 14 - Service and Maintenance Functions
Possible solutions
• Auto-dimming mode may have been
implemented, which occurs when no keys
have been pressed for an hour or more.
When this occurs, the display screen dims
to about half its maximum brightness
(based on its current brightness).
Auto-dimming helps maintain the integrity of
the display and reduce power consumption
when power is on for many hours at a time.
Press any key to restore the previous
brightness level.
• The system may be running too hot based
on its current environment. In this case, the
display screen dims only about a notch or
so, which is normal.
• There are two covered external fans at the
back of the control head. When one (or
both) of these fans needs servicing, the
backlighting dims substantially to reduce
the overall temperature. These fans are
dealer-serviceable; call your Northstar
dealer.
• Check the coax cable and the connectors.
• Check that the antenna has a clear view of
the sky.
• Wait 30 minutes (after start-up of new
system).
• Check for proper ground.
• Check the coax cable and the connectors.
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