HP141T Display & Modules 2022-10-18 HP141T 2233A22771 Display 8552B 2326A21660 IF 8555A 1831A09154 RF 8556A 2148A05237 LF Minor spoiling of aluminuim knob LF unit Damaged foot under display. 8555A does't work on 10.31-22.55GHz range. May need converter to work this range. 8556A input attenuator issue. Relay K1 "exercised" - issue resolved.