Keysight N5290/1A Service Guide 7-33
Repair and Replacement Procedures
Removing and Replacing the Fans
Removing and Replacing the Fans
Tools Required
— T-10 TORX driver (set to 9 in-lb)
— T-20 TORX driver (set to 21 in-lb)
— Pozidriv screw driver
— 5/16 inch open-end torque wrench (set to 10 in-lb)
— Flat-head screwdriver (to remove fan rivets)
— Soft hammer (to install fan rivets)
— ESD grounding wrist strap
Removal Procedure
Refer to
for this procedure.
1.
Disconnect the power cord.
2.
Remove the outer covers. Refer to
“Removing the Cover” on page 7-8
.
3.
Remove the front panel assembly. Refer to
Front Panel and Subpanel Assemblies” on page 7-10
.
4.
N5292A Top Side: Disconnect the fan wires (x2) from the power supply. It
is not necessary to remove the entire power supply. Refer to
and Replacing the A1 Power Supply Assembly” on page 7-24
5.
N5292A Bottom Side: Using a flat-head screw driver, remove rivets (x8)
(item
➁
) on both sides that attach the fans to the chassis.
6.
Remove the fans from the test set.
7.
To remove a fan or fan guard from the chassis:
a.
Before removing a fan (item B1) or fan guard (item
①
), note the
orientation of each fan and fan guard for reinstallation. Red arrows
indicate the correct direction of the flow of air towards the rear of
the instrument.
b.
Pull up the center pin of each of the fan rivets as shown by (item
➁
)
in the illustration.
c.
Pull out the rivet completely (as shown by (item
➁
) in the
illustration) to release the fan and fan guard.
Summary of Contents for N5222B
Page 3: ...3 ...
Page 4: ...4 ...
Page 10: ...6 Keysight N5292A User s and Service Guide Contents ...
Page 28: ...1 18 Keysight N5290 1A Service Guide Safety and Regulatory Information Site Preparation 1 ...
Page 86: ...3 50 Keysight N5290 1A Service Guide System Tests and Adjustments Adjustments 3 ...
Page 128: ...5 10 Keysight N5290 1A Service Guide Theory of Operation Theory of Operation 5 ...
Page 225: ...Installation Note Xxxxx xxxxx 3 ...