TDR9000
™
Circuit Breaker Test System User’s Guide
72A-1898 Rev. A 11/01 B-21
Monday, November 26, 2001 1:09 pm
6. Unscrew the captive screws on the circuit board.
7. Unlock and lift the circuit board ejectors and pull the circuit board up
and out. Alternately lifting up on the front and rear ejectors eases
circuit board removal.
8. Slide the replacement board into the card guides, align the
connectors on the replacement board with the connectors on the
backplane and carefully push down on the card ejectors to seat the
circuit board.
9. Ensure the replacement board is fully seated by pressing down on the
center of the card bracket.
10. Tighten the captive screws on the circuit board.
11. Reconnect any circuit board ribbon cables.
12. Plug the TDR9000 in and power up the unit.
13. Check to make sure the LED associated with the replacement circuit
board is on and green. The power up process takes about 1 minute
before the LED lights.
If LED is not green, refer to the Troubleshooting Flow Charts starting
on page B-11.
14. Replace the top cover and reinstall the two rubber feet.
N
OTE
All circuit boards and modules that are removed must be protected
from further damage by placing them into the protective packaging that
came with the replacement part.
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