Whenever the cathode-ray tube is replaced, readjust the brightness, purity, and convergence as described in the display manual.

2. Be slirc that the orientation for the etched encoder disc assembly is correct for reassembly. Orient the two cap screws so that one is at the 9-o'clock position and the other at the 12-o'clock position in relation to the PCB Assembly. Each screw head should be seen through the side opening of the disc spacer.

3. Be sure to position the spring pin in the sprocket post so that the chain has enough slack to allow the handle-to rotate freely.

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