Tektronix 11A52 Service Manual page 16

General Information
Installing and Removing the
11A5~
Amplifier
CAUTION
To avoid instrument damage set the oscilloscope ON/ST AND BY switch to ST AND BY before
installing or removing the 11A52.
If the green indicator light remains ON when the ST AND BY position is selected, the switch has
been internally disabled. ·
To remove or reinstall amplifier units, use the Principal Power Switch (rear panel) to shut OFF the
power. This will prevent damage to either the amplifier or the oscilloscope.
To once again enable the ON/ST AND BY switch, refer to the Maintenance section of the oscilloscope
service manual.
To install the 11A52 in any compatible 1100-series oscilloscope mainframe, set the oscilloscope ON/STANDBY
switch to STANDBY (see CAUTION above). Align the grooves in the top and bottom of the 11A52 with the
guides in the oscilloscope amplifier compartment; then insert the 11A52 into the oscilloscope until its front
panel is flush with the front panel of the oscilloscope.
To remove the 11A52 from an oscilloscope, set the oscilloscope ON/STANDBY switch to STANDBY (see
CAUTION above). Then pull the release latch (see Fig. 1-1) to disengage the unit from the oscilloscope, and
pull the 11A52 straight out of the amplifier compartment.
TOP GROOVE
MAINFRAME
7391-101
Figure 1-1. Installing an Amplifier Unit
in
an Oscilloscope.
1-2
11A52 Extended Service Manual
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