Flickering '87 Trinitron

[zeno]

This one may remain a mystery but.
It may be supply regulation but usually you would see the pix
kinda pulse. Other heavy hitters would cause it also like
the fridge, washer, well pump etc. Is it on the same line
as the DW ??
Another likely thing is the DW is transmitting some noise or
hash through the line or over air. More likely if the DW is
electronic. If thats the case it may be kinda normal.
Try listening on an AM radio for a static crash when it happens.
Third thing is Sony had lots of bad PC cons in the tuners &
IF's but that would be shock sensitive. Try hitting it & see
if it does it.

73 Zeno