The power supply is cycling in protect mode. Most likely there is something in the set that has gone shorted, or the power supply itself has failed.
Very often the horizontal output transistor, and or the flyback, and or some of the support components are defective. This does not rule out the possibilities of faults in other areas as well. In many instances if there is a scan or high voltage failure, the power supply may also be damaged.
It is impossible to guess at any particular components that could have failed without properly troubleshooting the set.
An experienced technician with the proper service tools, and information should be able to determine the failures in your set and service it.
Answers & Comments
The power supply is cycling in protect mode. Most likely there is something in the set that has gone shorted, or the power supply itself has failed.
Very often the horizontal output transistor, and or the flyback, and or some of the support components are defective. This does not rule out the possibilities of faults in other areas as well. In many instances if there is a scan or high voltage failure, the power supply may also be damaged.
It is impossible to guess at any particular components that could have failed without properly troubleshooting the set.
An experienced technician with the proper service tools, and information should be able to determine the failures in your set and service it.
Jerry G.