HI, Already have the full manual and circuit diagrams inc block, These do not help at all as there is no reference to the S Meter adjustment. This fault is from new according to the previous owner. The set is as new and was only used for one month in the 1980s so stored for some several years. My email is-
steveg3por@toucansurf.com Thanks for all your help, I may have to live with it, HI 73s Steve