Clear-Com Eclipse Median, Инструкция по эксплуатации, Страница: 96 / 114

Vitec Group Communications
Eclipse Median Instruction Manual
6 - 4
If a power-supply light is not lit on a component, the electric current
has not reached that component for some reason. Knowing where the
current has stalled helps to identify the component that needs repair.
For example, if all of the power-supply lights on all cards do not light,
the electricity supply may have given out either in the power supplies
themselves or in the matrix’s backplane connectors. A faulty connector
on the backplane, or a crack in the backplane can cause all of the
matrix’s power-supply lights to go out because the path on which the
electric current is traveling has been blocked.
This is a rare problem, but one to consider as a possibility. Repairing
the problem in this case would involve determining whether the
problem is in the power supplies or the backplane connectors.
When you identify a problem in the power supplies, the backplane
connectors, or the circuit cards, you can then swap out the suspect
component with a properly functioning component to see if the problem
is repaired.
Specific Troubleshooting Examples
Troubleshooting more specific problems becomes easier when
keeping these general principles in mind. The following examples
describe specific problems and suggested solutions.
Problem: All of the power supply lights do not illuminate on
one port card.
Before repairing or replacing card, try to determine where the problem
is occurring. You can try one or both of the following options:
OPTION 1 Take the bad card out of the matrix, and insert it into a
known good slot in the matrix.
• If the power supply lights still do not illuminate, the problem is
probably in the card itself. Repair or replace the card.
• If the power supply lights illuminate, the problem may be in the
matrix’s backplane connectors, which carry electric current from
the power supplies to the cards. You can send the matrix to
Clear-Com for investigation or repair. In the meantime, you can
substitute another matrix for the damaged one. Clear-Com will
send you a matrix to use while the damaged one is being
repaired.
OPTION 2 Take a known good card, and insert it into the bad slot.
• If the power supply lights illuminate, the problem is probably in the
card. Repair or replace the card.
• If the power-supply lights do not illuminate, the problem may be in
the matrix’s backplane connectors, which carry electric current
from the power supplies to the cards. You can send the matrix to
Clear-Com for investigation or repair. In the meantime, you can
substitute another matrix for the damaged one. Clear-Com will