YAESU FT-51R 
                         ~~~~~~~~~~~~~~~  
              AUTO-REPEATER and CROSS BAND REPEATER

Save your memory before you start. Anything stored as a file in the ADMS-1
PC program will NOT write back to the HT after this mod using the same 
template. A new template file will need to be created. 
Download a new radio file template after the mod then upload your previous
file using the NEWLY CREATED template (use the browse function in the
upload to radio window).

Remove power and all screws to the unit. Total of 7 screws. These are: 1-
battery release slide, 2 and 3- inside battery compartment just left and 
right of the 4 battery pack contacts, 4,5,6, and 7- inside battery compartment
behind the numeric keypad. You can loosen the four back cover screws too.

1. Carefully lift the L type battery plastic cover.
2. There is a big surface mount CPU in the top left corner below the battery
   release slide. To its right there are 7 jumpers (JP1001-JP1007).
   Lay out is sort of like this:

        -------                 
        |      |      <>               JP1001
        | cpu  |      <>   <>          JP1003     JP1002
        |      |      <>   <>          JP1005     JP1004
        --------      <>   <>          JP1007     JP1006

   The solder pads are half moon shapes. 

3. The american version of this radio has jumpers on JP1001, JP1006, JP1007.
4. Your job is to unsolder JP1006 so only JP1001 and JP1007 have solder.
5. Use a GOOD soldering iron and good solder wick.
6. To add tone burst add solder to JP1004.
7. Put radio back together and reset it (press and hold UP/DOWN arrow keys at
   the same time while you turn radio on).
8. You can toggle amateur on/off by pressing the arrow keys and turning it on.
9. Coverage is: 110-180RX, 420-470RX, 140-174TX, 420-170TX.

You all know the rules regarding transmission out of the amateur band!
The above was derived from Yaesu technical support document dated 12/8/94.

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º  KB2LJJ BBS  RADIO MODS BATABASE  º   All the MODS are captured by packet.
ÈÍÍÍÍÍÍÍÍÍÍÍ»       ÉÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ   This BBS takes no responsability or
ÉÍÍÍÍÍÍÍÍÍÍͼ       ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍ»   liability for any damege resulting
º     KB2LJJ @ KB2LJJ.NJ.USA.NA     º   from any modification.
ÈÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍÍͼ   73s John kb2ljj SySoP