4
Repair Guide
106
Keysight 8990B Service Guide
Figure 4-21
Plastic keyboard cover
13
Once the two inner tabs and three outer tabs have been disengaged, pull the
plastic keyboard cover up from the bottom and tilt it towards the top as there
is a cable connected to the top of the front panel keyboard as shown in
.
Figure 4-22
Pull the plastic keyboard cover up
Plastic piece covering
front panel keyboard
Top inner tab that you
need to disengage
Push the flathead screwdriver
straight back (towards the bottom
of the oscilloscope) and pull up as
shown to disengage this tab
Top of the 8990B
This is where the
cable is connected
to the front panel
keyboard
Содержание 8990B
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