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4-13. Setting the PROTECT/UNPROTECT Switch to PROTECT
The effects of ELECTROSTATIC DISCHARGE can damage electronic compo-
nents. Use grounded wrist straps and mats when you are performing any kind of
service on this module.
The PROTECT/UNPROTECT switch must be set to PROTECT after calibration is finished. Set the switch
to PROTECT as follows:
1. Remove power from the instrument. Pull the modules located above the oscilloscope halfway out,
then remove the filler panels and cards located above the oscilloscope. See figure 4-6 for the
removal sequence.
2. Remove the oscilloscope module and set the PROTECT/UNPROTECT switch to the PROTECT
position. See Figure 4-2 to locate this switch.
3. Repeat step 2 for each module calibrated.
4. Reinstall the modules and filler panels in reverse order of steps 1 and 2.
4-14. Sealing the Mainframe
After calibration has been completed, the mainframe should be sealed to protect the integrity of the
system. Place a seal on the equipment such that the seal touches both the top-most module (or filler
panel) and the mainframe.
Figure 4-5. End of Calibration Display
Figure 4-6. Endplate Overlap - Top Sequence
HP 16532A - Calibration
4-8