director 2/64 service manual

4–22 director 2/64 service manual
FRU Removal and Replacement
Replacing a Redundant SBAR Assembly
To replace a redundant SBAR assembly:
1. Remove the replacement SBAR assembly from its protective antistatic bag.
2. Inspect the printed wiring assembly (PWA) side of the SBAR assembly for bent or
broken connector pins that may have been damaged during shipping. If any pins
are damaged, obtain a new assembly.
3. Orient the SBAR assembly, as shown in Figure 4–8. Insert the assembly into the
director chassis guide, then push the assembly toward the backplane to engage the
connector pins.
4. Tighten the brass Allen screws that secure the SBAR assembly to the backplane.
Tighten the screws alternately to prevent binding and damage to the connector
pins.
a. Insert the tip of the torque tool into either brass Allen screw (right or left side
of the assembly). Turn the screw one or two turns clockwise. As the screw
turns, that side of the assembly pulls into the backplane connector.
b. Insert the tip of the torque tool into the other brass Allen screw. Turn the screw
one or two turns clockwise. As the screw turns, the alternate side of the
assembly pulls into the backplane connector.
c. Alternately tighten each Allen screw one or two turns until you feel the torque
tool release and hear a clicking sound.
d. Verify the assembly is flush and even with the other SBAR assembly in the
director.
5. Disconnect the ESD wrist strap from the director chassis and your wrist.
6. Inspect the assembly to ensure the amber LED is extinguished. If the amber LED
is illuminated, go to MAP 0000: Start MAP on page 2–12 to isolate the problem.
7. At the HAFM server’s Hardware View, click Logs and choose Event Log. The
Event Log displays. Ensure the following event codes display in the log:
— 600-SBAR card hot-insertion initiated.
— 601-SBAR card hot-insertion completed.
If an event code 601 does not display in the log, go to MAP 0000: Start MAP on
page 2–12 to isolate the problem.