Table of Contents
Advertisement
5.
Disconnect the video output board from the CRT.
6.
Disconnect the ground lead which connects the
clamp on the neck of the CRT to the CRT ground
contact (100).
7. Disconnect the yoke cable connectors.
8. Disconnect the primary control cable connectors
from the monarch logic board and the main board.
9.
Disconnect the secondary control cable connec-
tors from the monarch logic board and the main
board.
10. Remove the four screws (168) which secure the
cabinet front to the right and left chassis CRT
mounting plates (151 and 152) and remove the
cabinet front.
11. Remove the two screws (169) which secure the
horizontal collector plate (157) to the bracket at
the top center of the crossbrace (30).
12. Remove the two screws (169) which secure the
vertical collector plate (156) to the right chassis
mounting plate (151).
13. Remove the four nuts (171) and four flat washers
(172) which secure the plastiC holder (162) to the
front of the CRT and slide the holder forward away
from the monitor.
14. Remove the four spacers (163) from the four stud
bolts (164) at the corners of the CRT.
15. Place the monitor face down on a soft horizontal
surface.
16. Disconnect the video output board ground wire
from the CRT contact ground.
17. Disconnect the degaussing cable connector from
the main board.
Disassembly/Reassembly
18. Remove the four stud bolts (164) and star washers
(165), and flat washers (166) from the four front
corners of the CRT.
19. Carefully lift the monitor away from the CRT.
CRT Reassembly (105)
NOTE: Touch Control Alignment and Checkout in the
Servicing chapter should be read before attempting
this procedure.
1. Place the CRT face down on a soft horizontal sur-
face.
2. Position the monitor, face down, directly over the
CRT with the CRT ground contact in alignment
with the top corner of the monitor.
3.
Use the stud bolts (164), flat washers (166), and
star washers (165) to secure the CRT to the right
and left CRT mounting plates.
4.
Reposition the monitor so it is top side up.
5.
Install spacers (163) over the stud bolts (164).
6. Carefully install the plastiC holder (162) over the
stud bolts and secure the CRT with the flat
washers (172) and nuts (171).
7.
Install the logic board and the video output board.
8. Reconnect all cables between the cabinet front
and the monitor. Lean the cabinet front in a face
down position, away from the CRT.
9.
Use tape to attach the 16 x 16 line plastiC grid
(30-1165) to the face of the CRT, aligning it with
the small dots at the centers of the top, bottom,
and sides of the CRT (see Figures 4-5 and 4-6).
Page 5-3
Advertisement
Table of Contents
