Crt/Yoke/Bezel Assembly - DEC VT420 Service Manual

26 Removing and Replacing FRUs

3.2 CRT/Yoke/Bezel Assembly

To remove the CRT/yoke/bezel assembly:
1. Turn off the terminal and unplug the power cord from the wall outlet.
2. Remove the top cover (Section 3.1).
WARNING
The following steps may expose you to high voltages. To
protect yourself, discharge the anode with anode discharge
tool (PN 29-24717-00).
3. Discharge the anode as follows.
a. Attach the alligator clip of the anode discharge tool to the
grounding braid on the rear of the CRT.
WARNING
The support bracket assembly is not a ground point.
b. Insert the tool under the rubber anode cap until you make contact
with the anode connector. Discharge the anode for at least three
seconds.
N o t a
G r o u n d P o i n t
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