Agilent Technologies 54657A Spécifications Page 147

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To remove the keyboard
1 Remove the front panel.
2 Remove all the knobs by pulling straight out.
3 Flex the bezel of the front panel to unsnap the small keyboard under
the display opening.
4 Using the T10 TORX driver, remove the three screws from the large
keyboard.
Make sure that when you reinstall these screws that you use the correct
parts. If longer screws are used, they can damage the front-panel label.
5
Press down on the top of the keyboard, and rotate the bottom of the
keyboard out.
When installing the keyboard, make sure that the probe compensation cable
is kept away from the keyboard cable or noise can occur in the probe
compensation signal. See figure below for positioning the keyboard cable on
the 54615B and 54616B.
Positioning keyboard cable on 54615B and 54616B
Probe compensation cable
Keyboard cable
on 54615B and
54616B
Figure 4-11
Service
Replacing Parts in the Oscilloscope
4-55
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