10. If the lower data cable corrects the problem, replace the cable. If the lower data cable does
not correct the problem, re-connect the original lower data cable to the lower PCA and mid-
point connector and continue with step 11.
11. Remove the cover from the rear of the display. Disconnect the upper data cable from the
mid-point connector and the upper PCA. See Diagram 6.2. Substitute a known good data
cable from the upper PCA to the mid-point connector. It is not necessary to route the test
data cable through the frame tube, for convenience route it externally.
Diagram 6.2 - Upper Display Cable
12. If the upper data cable corrects the problem, replace the cable. If the upper data cable does
not correct the problem, re-connect the original upper data cable to the mid-point connector
and the upper PCA and continue with step 12.
13. If you have performed all of the procedures above and have been unable to correct the
problem, call Precor customer service.
Upper Data Cable
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