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Disassembly for Service (Cont.)
3. Remove the defective CRT anode lead from the
high voltage distributor block that is mounted on
X-RAYS SHIELD
A
the Flyback Transformer. Discharge to CRT
10. TO insure X-Rays radiation protection, the lens
chassis.
must be mounted in place at all times when power
4. Unplug connectors from the B-Board. (See board
is applied to the receiver.
layout.) B9 for Red, 810 for Green, or I311 for Blue.
5. Unplug the defective CRT black Dag ground
connector from the CRT Board.
6. Remove the CRT Board from the defective CRT
neck.
7. Remove (2) screws from the defective CRT
housing (Figure 14).**
CAUTION: Do not remove the (4) CRT
lens screws.
8. Release CRT anode lead from CRT chassis wire
clamp and all other wires from holders.
9. Loosen a screw that secured the DY and remove it
from the CRT neck.
Optical Bracket Cover
-
~ i ~ u r e
14. CRT Replacement.
CAUTION: Support the CRT Assembly
when loosening screws.
CRT Replacement
1.
Remove CRT focus lens assembly (4 screws).
5.
Wire the anode lead wire.
Figure 16. Wire Guide.
6. Install yoke
with other CRT neck assemblies on
CRT neck in the same order and position as
removed from the defective CRT.
7. Press yoke against bell of CRT and tighten the
clamp just snug enough so it will not easily shift.
8. Assemble CRT focus lens assembly to new CRT
with (4) screws. Make sure focus lens adjustment
nut is in the same location as on other CRT focus
lens.
Figure 15. CRT Assembly.
2. Lay CRT face down on a soft cloth.
3. Note position of yoke with centering tabs and
remove from defective CRT.
4. Remove CRT Dag ground from defective CRT.
Mount it on the replacement CRT exactly as it was
on the defective CRT.
Note: Replacement CRT comes with H. V.
anode lead attached.
Figure 17. Order of Screws during Assembly.
C
Note: Please assemble with screws in the order
shown and tighten with the same torque.
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