Yaesu FT-816 (FT 816 FT816) user and service manual, modifications

1. Remove battery and antenna
   
   
2. Remove the 4 screws holding battery track.
   
   
3. Remove 2 screws in the back case.
   
   
4. Carefully separate the front cover.
   
   
5. Locate jumper pad 5 and 7
   

        +-+   +-+
   +----+ ¦   ¦ +-----------------+
   ¦  ()  +---+               6   ¦
   ¦   9  ()10          5()  ()   ¦
   ¦  +----+            1()  ()2  ¦
   ¦  +----+  +------+  7()  ()8  ¦
   ¦          +------+  3()  ()   ¦
   ¦  +---+                   4   ¦
   ¦  ¦   +        +-------+      ¦
   ¦  ¦   +        ¦ Speaker      ¦
   ¦  +---+        ¦       ¦      ¦
   ¦               +-------+      ¦
   +------------------------------+
   

   
   
6. Solder pads 5 and 7 (ped 9 already jumped.
   
   
7. Carefully reassemble all radio.
   
   
8. Reset the microprocessor.( press and hold [mr] [2] and [vfo] and turn the radio on.
   
   
9. The radio display will cycle orderly through the memory channel.
   
   
10. Press [f] [0] and [6] and select 5.000 mhz channel spacing in each vfo.
    
    enter the following band limits.

       CH. 1    410.000   Press [VFO] Lower Rx
           2    510.000   Press [VFO] Upper Rx
           3    400.000   Press [VFO] Lower Tx
           4    510.000   Press [VFO] Upper Tx
    

Note: The VCO may need to be adjusted for TX above 460 Mhz