BUSH TV97

The picture width is lin. short either side. I
cannot trace any width control. The adjustment on the neck of the tube does not give sufficient width.
The field control is critical-the picture tends
to roll and lock in the wrong position. Also could you tell me the method of access
to clean the face of the c.r.t.-J. Begg (Renfrew). Check the PL81 line output valve and change the h.t. rectifier if the h.t. voltage is low. Check the high value resistors associated with
the ECC33 pins 1 and 2. To get to the tube face, release the top center screw and bottom chassis screws. Release the push- button screws (do not remove) after pulling off
the front