IC-2SA/E  Frequency range expantion

 * Remove any diode position on D6
 * Install diode DA (code No. 1750000160) position D6

 After this modification frequency lock range will be expand typicaly :

        RX (MHz)  :  108 - 140 (AM) , 138-169 (FM) , 310-370 (FM) ,
        TX (MHz)  :  139 - 163 (FM) ,

        -------------------------------------------------
        |                                               |
        |                                               |
        |                                               |
        |                                               |
        |                                       R R     |
        |                                       3 3     |
        |                                       9 8     |
        |                                      o        |
        |                               R R R ### <---  |
        |                               4 4 4 ###       |
        |                               1 2 3 o o R     |
        |                                         6     |
        |                  ___________            1     |
        |                 /           \                 |
        |                /             \                |
        |               |       SP1     |               |
        |               |               |               |
        |               |               |               |
        |                \             /                |
        |                 \___________/                 |
        |                                               |
        -------------------------------------------------
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Yeah, the above is crude, just meant to give the relative locations of the
mysterious diode, SP1, R38, R39, R41, R42, R43, and R61.  The 3-terminal
box with an arrow drawn to it (the arrow is in the original image) looks
like the below.  A diode is connected from the lower left tab to the upper tab.
                ___
                | |
        --------------------
        |       /          |
        |     ---          |
        |     /_\          |
        |  ____|           |
        | /                |
        | |                |
        --------------------
         | |            | |
         ---            ---
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
[diode matrix programming]

To simplify/fool-proof this, if the schematic has:

                (X) --->|--- (Y)

I'll say "from X to Y".  From the "IC-2SAT IC-2SET SCHEMATIC DIAGRAM":

        Japan Version           D6:     DA115   from KEYI2 to KEYS2
        Europe Version          D5:     DA115   from KEYI0 to KEYS3
                                D6:     DA115   from KEYI2 to KEYS2
        Italy Version           D5:     DAN202U from KEYI1 to KEYS3 and
                                                from KEYI0 to KEYS3
                                D6:     DA114   from KEYI0 to KEYS2
        U.S.A. Version          D4:     DA115   from KEYI2 to KEYS3
                                D9:     ISS254  from KEYI1 to KEYS2
        Australia Version       D5:     DA114   from KEYI1 to KEYS3
                                D6:     DA115   from KEYI2 to KEYS2
        Asia Version            D4:     DA115   from KEYI2 to KEYS3

Now, can anyone use this to figure out the Icom-Europe memo???

                                        Bob  KC9RG
                                        cromwell@ecn.purdue.edu