To Remove And Replace The Hp 1660Cs-Series Oscilloscope Board - HP 1660C Series Service Manual

Replacing Assemblies

To remove and replace the HP 1660CS-series oscilloscope board

To remove and replace the HP 1660CS-series oscilloscope board

Using previous procedures, remove the following assemblies:
1
•
Handle
•
Rear Feet
•
Cover
•
Rear Panel
•
Disk Drive Assembly
•
Power Supply
Disconnect the sweep cable from acquisition board.
2
Disconnect the CPU board interface cable by pressing down on the cable release
3
tabs on the cable socket located on the board.
Disconnect the power supply cable.
4
Remove the hex nut from the oscilloscope input attenuators on the lower front
5
panel.
Slide the mounting plate out the rear of the instrument.
6
Verify that the cable release tabs are down to slide the mounting plate out, then slide the
mounting plate toward the rear out of the chassis.
Separate the oscilloscope board from the mounting plate by removing the screw at
7
the center of the board. Remove the oscilloscope-to-acquisition board cable.
Remove the attenuators from the oscilloscope board by removing the mounting
8
screws (two per attenuator) from the underside of the board. Then carefully lift the
attenuator straight off of the board.
Reverse this procedure to install the oscilloscope board.
9
Ensure that the monitor is properly installed before installing the oscilloscope board.
When installing the mounting plate, check that the alignment tabs on the mounting plate are
installed in the alignment holes in the inside bottom, front of the chassis.
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