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Warning
In the following step, a large arc of high voltage should be drawn. Be careful.
Use only one hand during the procedure.
5. Locate the snap connector on the CRT post accelerator cable. It is shown as item @ in
Figure 2. Using a long flat-bladed screwdriver with an insulated handle, carefully pry the
connector loose but do not disconnect the cable.
a. Using one hand, remove the end of the cable, 0 of Figure 2. As the end of the cable
becomes free, touch the end of the cable to the CRT's metal cover. A large arc of high
voltage should ground to the CRT cover. The CRT is not discharged yet!
b. Reconnect the CRT post accelerator cable, and repeat the above step until high-voltage
arcs no longer appear.
6. Leave the CRT post accelerator cable disconnected, and remove the cover from the AlA
High Voltage Regulator assembly.
7. Connect a jumper wire (insulated wire and two alligator clips) between the shaft of a
small screwdriver and the chassis ground lug on the inside of the high-voltage shield.
8. While holding the insulated handle of the screwdriver, touch the grounded blade to the
following connections:
a. Both brown wires going to the rear of the CRT from AlA via cable harness W21.
b. The yellow, blue, and orange wires in the same cable as "a." above.
c. The top lead of each of the 11 large vertical capacitors on the AlA High-Voltage
Regulator Assembly.
6 AlA
Figure 2. Discharging the CRT Post Accelerator Cable
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