Sony Trinitron KV-40XBR800: Dreaded Blinking Standby LED!

[zeno]

Originally Posted by YamahaFreak

I think I can perform this repair myself...so long as the ICs in question aren't SMT, and can still be purchased! Where might I find them and their associated sockets? The hardest part (which I will likely procrastinate on) will be moving the set away from the wall.

That discoloration at the corners of the CRT really intrigues me. I simply cannot come up with a logical explanation as to why it's there. I am also not the only one to have noticed it; other owners of this set have reported it.

I never did it on a 40" but did a lot of 30" & 34". The board is printed
on both sides so you may pull up some top trace. Just hard wire it on
the bottom if it happens. Also on those removing some caps gives you the room you need. As said PUT IN A SOCKET ! I had a 30" & it needed an IC every year & I was using OEM Sony parts. Finally junked the set, got sick of
getting help to dig it out from the entertainment center. It was
hard to let go but thats life.

On the purity issue you can improve it with little magnets on the bell
of the CRT. Strip some out of a junker. They usually are taped down,
on plastic strips or V shaped. Do it after the sets run an hour
to heat up the shadow mask & not moved. Use a pure green
raster. Slide them back & forth & turn them as needed then tape down.

73 Zeno