3–10
Removing and Replacing FRUs
3.2.3 Discharging the CRT and Removing the Anode Cap
Discharging the CRT is a process that drains to ground any leftover
voltages that remain in the extra-high tension (EHT) cable after power is
removed. Discharge the CRT as follows:
1. Remove the rear cover (Section 3.1.2).
2. Remove the top cover (Section 3.1.3).
3. Remove the interconnect cable (Section 3.2.1).
4. Remove the power supply module (Section 3.2.2).
WARNING
The following steps expose you to the CRT anode which may
store a high voltage.
5. Attach the clip end of the anode discharge tool (PN 29-24717-00) to a
chassis ground point near the CRT anode.
WARNING
Keep your free hand away from any part of the monitor during
the anode discharge process.
6. Using one hand, carefully slip the anode discharge tool under the CRT
anode connector cup until it touches the connector prongs. Maintain
contact for at least 10 seconds.
NOTE
Be careful when you use the anode discharge tool. Do not tap
the CRT. Avoid scratching or marring the CRT glass when you
insert or remove the tool.
7. Remove the CRT anode cap from the CRT, as shown in Figure 3–8.
