Remove the baffle bracket
Use this procedure to remove and replace the baf
fle bracket from the rear chassis, to gain access to the power supply assembly.
Before you begin
• To prevent electrostatic damage to components whenever you work on the instrument, wear properly-grounded electrostatic prevention
wrist and foot straps, and work in a tested antistatic environment on an antistatic mat.
• Remove rear chassis assembly on page 20
Procedure
1. Set the rear chassis with the rear side down.
2. Remove the four T-10 Torx screws from the baffle bracket.
3. Lift the baf
fle from the right side, gently working the baffle from its registration tabs on the inside edge of the main fan, then lift up and
pull away from side of chassis. There are tabs on the left end of the baffle bracket that fit into the side of the chassis.
4. To reinstall, reverse the steps. Note the tabs that must fit into the side of the chassis, and the registration bumps along the right edge of
the main fan assembly. Install the yellow-marked screw last. Use a T-10 Torx screwdriver to tighten the screws to 0.65 N·m.
Remove the power supply assembly
Use this procedure to remove and replace the power supply assembly.
Before you begin
• To prevent electrostatic damage to components whenever you work on the instrument, wear properly-grounded electrostatic prevention
wrist and foot straps, and work in a tested antistatic environment on an antistatic mat.
• Remove the baffle bracket on page 22
About this task
Use the following steps to remove the power supply assembly from the rear chassis and access the power supply bracket, board, cable,
and fan.
Procedure
1. Disconnect the cables connecting the power supply to the carrier interface assembly, AFG riser board, and AC line filter.
Maintenance
5 Series MSO Service Manual MSO54, MSO56, MSO58 22
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