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SECTION SEVEN: Troubleshooting and servicing the 958 system
Page 36 958 Installation Manual, Rev. A1
DISPLAY (cont.)
•
The display screen dims, either slightly
or more, after the 958 has been on for a
certain time.
•
The message
8117 FAILURE
appears
where the video input image should be.
•
Color bars appear where the video
overlay image should be.
•
The 958 may be going into auto-dim-
ming mode. Auto-dimming helps
maintain the integrity of the display
and reduce power consumption when
the 958 is on and running too hot for
its current environment. In this case,
the display screen may automatically
dim.
•
The internal 8117 video chip has
failed; contact the Northstar Service
Department. (This failure affects only
the video image, nothing else.)
•
Check that the video image is turned
on (press
STAR
to display the
VIDEO SETUP
screen).
•
Check the cables and the connectors.
•
Check that the video equipment is
working properly.
SYSTEM
System lock-ups
Hardware-related:
•
The system locks up on a random basis
with no apparent pattern.
•
The system locks up when using a chart
card.
•
System fails any initial self-tests.
•
Possible internal failure; call your
Northstar dealer or the Northstar Ser-
vice Department.
•
Possible bad chart card. Remove the
card, and inspect the pin area of the
card and the 958 for damage. If the
pins in the 958 are bent or damaged,
to prevent further damage, don’t
insert another card. If you’re sure the
card pins aren’t bent, try inserting a
new card (turn power off before
inserting).
•
Possible internal failure; call your
Northstar dealer or the Northstar Ser-
vice Department.
TABLE 11: Troubleshooting the 958 installation (cont.)
Problem Area Symptom Possible Solutions/Reasons