DIYbanter - View Single Post

Hello, !
You wrote on 22 Jun 2005 11:55:59 -0700:

d Only the vertical lines are out of focus, all colors and black. All
d else is great.
d Tried the digital setup after Password, and have opened the case but
d have not been able to figure out just what controls the focus.
d Thanks for looking, Richard

I think this is a badged SONY with the 21" Trinitron CRT . There is a focus
control on the Lopt (line output transformer) Find a large wire with a big
rubber ring where it attaches to the back of the CRT follow it down to the
lopt and on the body of the lopt there should be two vertically mounted
rotary controls, one is the screen Grid the other is the focus. These big
sets sometimes have the focus control seperate from the lopt. BE AWARE THAT
THE VOLTAGES AROUND THIS AREA ARE LETHAL. USE A LOOoooNG Insulated crosshead
screwdriver. keep one hand in your pocket so you can't ground yourself.
It's best to use a big mirror to check how your doing, because you really
dont want to stretch around a big set like this with one hand in the HV just
to see the screen.
With best regards, 3T39. E-mail: