Maintenance
To Remove Modules
To remove any of the instrument modules or assemblies, you must
fi
rst
remove the rear cover and separate the front chassis from the rear chassis.
To remove the Front Panel board assembly or the front panel case assembly,
you must
fi
rst remove the Main board assembly, the Analog board assembly,
and the front chassis.
To remove or install the keypad, do not touch the switch contacts with your
fi
ngers. The oils on your
fi
ngers will degrade or damage the switch contacts.
To help prevent damage to the keypad, use cotton gloves when removing or
installing the keyboard pad.
Figure 4: Module locator
24
MSO4000B and DPO4000B Series Digital Phosphor Oscilloscopes Service Manual
