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Removal and Installation Procedures
TAS 455 and TAS 465 Service Manual
6Ć31
DO NOT remove the fan from the fan mount unless servicing a
broken fan or fan mount or removing the mount for cleaning.
7. Release the two flex locks securing the top of the fan to the fan mount,
then lift the fan out from the mount.
Fan and Fan Mount Installation
1. If the fan was removed from the fan mount, press the fan into the fan
mount until the four retainer clips snap into place, securing the fan.
2. Install the fan assembly so that the retainer lugs on the mount are posiĆ
tioned in the large holes of the chassis; then, slide the fan assembly until
the lugs slip into the small holes and the two flex locks snap into place.
3. Reconnect the fan power cable.
4. ReĆinstall all removed components.
The procedures that follow describe how to remove and install the CRT.
Refer to Figure 6Ć19 for this procedure.
Additional procedures required Ċ This procedure requires that the
following procedures be performed first:
H Rear Cover Removal
H Cabinet Removal
H Front Trim Removal
H A3 Display Driver Board
CRT Removal
1. Set the oscilloscope so its bottom is down on the work surface, with its
front facing you.
WARNING
Breaking a CRT causes it to implode, scattering glass fragments
with high velocity and possibly injuring you. Wear protective
clothing and safety glasses (preferably a fullĆface shield). Avoiding
striking the CRT with or against any object.
Store the CRT with its display face down in a protected location,
placing it on a soft, nonabrasive surface to prevent scratching the
face plate.
CRT