Removal and Installation Procedures
6-66
TDS 420A, TDS 430A & TDS 460A Service Manual
5. Reinstallation:
WARNING. When reconnecting the auxiliary power supply to the line filter, be
sure to connect the neutral side of the line filter to the black-striped lead and the
load side to the white-striped lead.
It is not necessary to disconnect the earth ground from the chassis lug that it is
bolted to. If, however, you have done so, be sure to install the earth lead (and its
nut) from the line filter before installing the earth lead (and its nut) from the low
voltage power supply.
a. Do in reverse order substeps 4a--4b, reversing the removal instructions in
each substep to reinstall the assembly.
b. See the following procedures to replace the modules removed by the
access procedure:
H Front Cover, Rear Cover, Cabinet, Rear EMI Gasket, and Cabinet
Handle and Feet (page 6--27) to reinstall the cabinet and rear cover
H Line Fuse and Line Cord (page 6 --26) to reinstall the line cord,
which completes the oscilloscope reassembly
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