Icom IC-756 (IC 756 IC756) transceiver mods reviews software and diagrams

   
 
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21 April 2021, 11:48 UTC 


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Propagation:
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Icom IC-756 (IC 756 IC756)
IC-756
Programming interface schematics for Icom:
Programming software for Icom IC-756 (IC 756 IC756) :
PDF User Manual for Icom IC-756 (IC 756 IC756) :Icom IC-756 Instruction Manual
PDF Adjusments Procedures Manual with schematics for Icom IC-756 (IC 756 IC756) :
Schematics for Icom IC-756 (IC 756 IC756) :

Mods for Icom IC-756 (IC 756 IC756) :
    Icom IC-756 (IC 756 IC756) filter modification
    Icom IC-756 (IC 756 IC756) wide band modulation
    Icom IC-756 (IC 756 IC756) Spectrum Scope Adjustments
    Icom IC-756 (IC 756 IC756) ACC1 Audio Output Increase
    Icom IC-756 (IC 756 IC756) General Coverage H.F. TX Mod (1.6 - 30.0MHz)
    Icom IC-756 (IC 756 IC756) Expand TX Frequency

Icom IC-756 (IC 756 IC756) technical specifications :  Icom IC-756 (IC 756 IC756) technical specifications



Icom IC-756 (IC 756 IC756) Expand TX Frequency

Notice: ICOM can not guarantee specification when expand frequency.

How to change full cover transmit:
Remove the W805 jumper chip on MAIN unit by soldering iron.
Jumpers matrix located near IC803.

What to do:
Remove bottom cover of IC-756. On MAIN unit board you will see IF filters and daughter board (DSP filter) on the right side.
W805 jumper and IC803 chip located under DSP board. You have to remove DSP board (get it up careful) and look for IC803 and line of jumpers (little green bugs). When it done, unsolder W805 jumper. Install DSP board and bottom cover back.

                     ---------------
         [W801]     |               |
         [W802]     |               |
         [W803]     |    IC 803     |
         [W804]     |               |
REMOVE==>[W805]     |     CHIP      |
         [W806]     |               |
         [W807]      ---------------
         [W808]

This info are from ICOM SERVICE INFORMATION sheet.

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