I repaired a Philips set like that last year (K40 chassis) with those
symptoms. It was dry joints near the line transformer - given the age
of the set and the heat generated in use and hence heating- cooling
cyles, that was not a surprise! My tip? resolder EVERYWHERE before
undertaking expensive component swapping.

If not, ....Could be an open resistor in the deflection area.
check the modules on the chassis, remove and reinsert them.

In another K40 set I worked on, There was a red or brown wire from the
power supply to a module on the mainboard which had broken internally -
set was stuck in standby with hiss. I suggest you check all cables like
that with a multimeter

good luck, Ben