Keysight N9912A Service Manual page 108

Repair and Replacement Procedures
Removing and Replacing the Front Panel Group Assemblies
5. Reinstall the hole plugs in the front case. Apply one drop of isopropyl
6. Reinstall the RPG knob. Refer to
7. Perform the steps under
Figure 7-14 Replacing the RPG and RPG Knob
Replacing the A2 LCD, the LCD Shield, and LCD Cables
1. Perform the steps under
2. To replace the LCD shield:
7-22
e. To install a new RPG, reverse the above steps. A new cable, nut, and
washer are included with the new RPG. When reinstalling the RPG
cable, W12, bend the cable toward the right side on top of the
display to front panel interface board cable.
alcohol on each hole plug to lubricate it, making it easier to install. Use
alcohol only in a well ventilated area. View the hole plugs from the front to
ensure that they are fully seated. These hole plugs must be installed to
maintain water-tight integrity.
a. Remove the four screws (item 1) that attach the LCD shield and
discard them. New screws are provided in the
Re-assembly Kit.
b. Lift the LCD shield off of the A2 LCD.
step 3.b of this procedure.
"Post-replacement Procedure" on page
"Pre-replacement Procedure" on page
Keysight N9912A Service Guide
7-28.
7-21.
Repair and