Maintenance—2230 Service
5. Remove one pan-head and two recessed screws
securing the Power-Supply shield to the rear chassis
frame. See Figure 6-9 for the location of the three screws
on the rear chassis frame.
6. Remove the screw from the front upper-right hand
corner of the Power-Supply shield.
7. Lift the Power-Supply shield up and out of the
chassis frame by removing the right rear comer first.
NOTE
To reinstall the Power-Supply shield, ensure that the
shield is placed in the frame guides on the rear
chassis above the fuse holder and that the crt
socket-wire assembly and crt anode lead are prop
erly placed in their respective cutouts.
To reinstall the Power-Supply shield, perform the
reverse of the preceding steps.
Line Filter Circuit Board and Cover
To remove the Line Filter circuit board and cover, per
form the following steps:
1. Perform the “ Storage Circuit Board in Servicing
Position" removal procedure.
2. Remove the Power-Supply shield (see the "Power-
Supply Shield" removal procedure).
3. Remove the two recessed screws that secures the
Filter circuit board to the rear chassis and lift the Line
Filter circuit board out and away from the the filter capaci
tor.
4. Remove the four wires to the Line Filter circuit
board by unsoldering two wires from the Main circuit
board, one wire from the line filter, and one wire from the
fuse holder (pull the protective cap completely off the fuse
holder before unsoldering).
To reinstall the Line Rlter circuit board and cover, per
form the reverse of the preceding steps.
REMOVE ONE PAN-HEAD AND
TWO RECESSED SCREWS
4999*39
6-40
Figure 6-9. Location of screws securing Power-Supply shield and the support bracket to the rear chassis frame.
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