A Sony that shuts down when cable signal applied is almost always due
to the horizontal frequency (free-run) being too far off. Yes, this
will cause an overcurrent protect shutdown. Main B+ regulation being
too high or low will also cause the horizontal frequency to be off.

Double check the free-run horizontal frequency (no signal applied) to
see if it is within specification.

David

458 wrote:
update on this sony kv32fs16 set plays about half hour and shuts
down,
happen to have it on the bench and needed cable line for another
set.i
took cable line off sony and was working on other set and noticed
that
sony was still on after about i hour. i left set on without cable
hooked
up to it and it stayed on all day. hooked cable back up tp set and
within
5 min. it shut down again, as long as i leave it with raster only it
stays
on naturally its all snow but not shuting down.it also blinks twice
on
front of set which means short in current protection cir.so sony code
book
says, checked all caps, and diodes found none bad help please jack
@allen park tv