Remove And Replace The Power Supply And Pc Motherboard; Figure 4-53 Uninstall The L-Bracket From The Rear Mounting Deck - Keysight 8990B Service Manual

Remove and Replace the Power Supply and PC Motherboard

Use this procedure to remove and replace the power supply and PC motherboard.
1 The rear mounting deck (08990-00105) must be uninstalled to remove and
2 Uninstall the rear mounting deck with the following steps.
Figure 4-53
Keysight 8990B Service Guide
replace the power supply module and PC motherboard.
a Uninstall the L-bracket from the rear mounting deck by removing the nut
(0535-0082) with the 5 in-lbs, manual torque screwdriver and the screw
(0515-2143) with the 18 in-lbs, T20 Torx screwdriver as shown in
Figure 4-53.
Uninstall the L-bracket from the rear mounting deck
b Remove the seven screws (0515-0390) with the 18 in-lbs, T20 Torx
screwdriver and the screw (0515-2143) with the 18 in-lbs, T20 Torx
screwdriver as shown in
0535-0082
0515-2143
Figure 4-54.
Repair Guide 4
135