Figure 4-30 Remove The Four T10 Screws - Keysight 8990B Service Manual

23 Remove the four T10 screws that attach the touchscreen to the sheet metal.
Figure 4-30
24 To replace the backlight inverter board, disconnect the cables from the
Keysight 8990B Service Guide
There are two on each side of the touchscreen as shown in
reattaching these screws, tighten to 5 in-lbs with the T10 torx screwdriver.
Remove these two screws and
the two on the other side of the
touchscreen
Remove the four T10 screws
backlight inverter board and remove the two T10 screws as shown in
Figure 4-31. You may need to temporarily remove the touch screen cable (blue
connector) in order to remove and replace the inverter board.
This board should already be removed so
you can pull the touchscreen cable through
from the other side of the sheet metal
Repair Guide 4
Figure 4-30. When
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