Table 13: Service Checklist - NorthStar 961 Reference Manual

Chapter 14 - Service and Maintenance Functions
Problem
PWR
Pressing the
the system.
The control head powers up, but not the
processor (the power indicator at the back
of the processor isn't on).
The control head powers up, but there
isn't any video.
There is continuous or intermittent system
failure as evidenced by the display screen
flashing.
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Table 13: Service checklist

key doesn't power up
Possible solutions
• Check the fuse and the power to the head.
• Check the fuse and the power to the
processor.
• Check the coax cable between the head
and the processor.
TEST-POWER
• Set the
processor to the "test" position. If the
processor doesn't power up, then power to
the processor is faulty or the processor's
power supply may be defective.
• Verify that the power indicator at the back of
the processor is lit.
• Check the fuse and the power to the
processor.
• Check the coax cable between the head
and the processor.
• Check that the TNC connector is properly
installed.
961/962 Operations and Reference Manual, Rev. A
switch on the