Repair manual

PARTS REPLACEMENT
4-23
h. Disconnect the CRT anode cap by lifting its flange with your fingers and
depressing one contact with a greenstick to release it from the socket
(see inset, Figure 4-6).
i. Unplug the vertical and horizontal deflection cable connectors from the
Monitor Board Assembly (Figure 4-6).
j. Unplug the CRT ground lead from P5 on the monitor Board (Figure 4-6).
k. Disconnect the Monitor Board from the connector on the Logic Board
Assembly as follows: hold the logic board down with the eraser end of a
pencil while pulling upward on the Monitor Board Assembly. A slight
rocking motion helps to disengage one connection between the two
boards.
Note: Avoid contacting the white thermal conductive paste on the copper
heat sink around the flyback transformer.
l. Remove the Monitor Board Assembly.
3. INSTALLATION
a. When inserting the new Monitor Board Assembly, firstalign the pins on
the Logic Board with the corresponding connector slots on the Monitor
Board. Gently push down on the Monitor Board.
b. Plug the CRT ground lead into P5 on the Monitor Board (Figure 4-6).
c. Plug the vertical and horizontal deflection cable connectors (J3 and J4
respectively) into the Monitor Board Assembly (Figure 4-6).
d. Snap the CRT anode cap into its socket (Figure 4-6).
e. Plug the CRT socket into the CRT (Figure 4-6).
f. Secure the yellow and green wires on the CRT gun with a tie-wrap.
g. Secure the Monitor Board Assembly to the chassis with three screws.
h. Replace the light Shield (Figure 4-6).
i. Replace the high voltage insulation board.