The failure of almost any component in the horizontal output or low voltage power supply can cause the set to shut down. Of course, when the chassis shuts down and comes back on, that's a different type of problem for the technician to solve. In many cases, an intermittent shut down is more difficult to diagnose and repair. The set might shut down at once, or it might take a minute or two before shut down. A TV chassis might have a intermittent shut down accompanied by a tic-tic noise. Another chassis might pulse off and on, then shut down. Sometimes, the set might shut down if the power line voltage is too high or too low. Whatever the intermittent condition, extra service time is required to solve the problem.
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