TM   11-5820-890-20-1 5.3. COMPONENT  REPAIR. The following charts show, by component, those items to be repaired at unit maintenance and those actions required by the Unit Maintainer to accomplish authorized repairs. While this paragraph contains instructions for complete disassembly of some components, Mounting Base MT-6352 series for example, the extent to which the Unit Maintainer will repair such items depends primarily upon unit SOP and maintenance policy. The Antenna Connector J1 of the RT front panel is being changed from a DS to a unit maintenance task. The change requires application of a Modification Kit by DS Maintenance. Once the modification is installed, the brass-colored J1 connector will be replaced by a silver-colored connector. When it becomes necessary to replace a silver-colored J1 connector, that task is a unit maintenance responsibility. Replacement of brass-colored J1 connectors continues to be a DS maintenance task, performed only when the item is damaged. This paragraph provides instructions for replacement of the silver-colored connector. a.  RECEIVER-TRANSMITTER  (RT)  (RT-1523  SERIES): MAINTENANCE     REQUIREMENT: ACTIONS: (1) Replace handle (6) on RT-1523 series (2)  Replace  silver-colored  antenna connector   (5) (3) Replace  front  panel  control  knob  (10) (R-F1 523/B/C/E) (4) Replace  front  panel  control  knob (RT1523A/D) (5) Replace  strike  catch  (7) N/A  for  RF1523E (1) Remove  connector  cover  (9)  from  handle  (6)  (RT-1523) (2) Remove 4 screws from side of RT (RT-1523/B/C), or 2 screws from top  of  handle  (RF1523A/D) (3) Install  new  handle  (6) (4) Replace  screws  and  tighten (5) Replace  connector  cover  (9)  (RT-1523) (1) Remove  screws  (4)  from  connector  (5) (2)  Remove  connector  (5) (3) Install  good  connector  (5) (4) Tighten  set  screw  (4) (1) Loosen set screw (11) at side of knob (10) (2) Remove  knob  from  shaft (3) Install  good  knob  (10) (4) Tighten  set  screw  (11) (1) Loosen  screw  in  top  of  knob (2) Remove  screw  and  washer (3) Remove  knob  from  shaft (4) Install good knob (5) Place  washer  on  shaft (6) Holding   knob,   tighten   screw (1) Loosen  and  remove  screws (2)  Remove  catches  (7) (3) Install  good  catch  (7) (4) Apply  sealing  compound  (Grade  H)  to  screws (5) Install  and  tighten  screws 5 - 1 3