Most likely the set is in protection. This is usually attributed to a
failed flyback, and or high voltage, and or scan drives. Any of the
various components in these areas can fail, and thus cause this type of
indication. Proper troubleshooting and service is required.

Determining the details of the power supply outputs, supply voltages to
the scan amplifiers, and if there is proper drive pulses to the scan
amplifier output stages is a way to start.

It would be an assette to order the service manual from Philips to
start with.

If you are not trained and equiped to perform TV servicing, it would be
recomended to give the set out for proper and safe service.

Jerry G.
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