The chip is most likely the ICL232 level converter...
You can get a basic idea how it works by the article in QST Feb 1993,
DigiKey has the chips if you wish to build one.... or repair the one you
have... Works great on my FT890AT with the program I wrote in Visual
Basic
Jerry KJ5KP
Larry Menzel wrote:
> Listers...
>
> I seem to be experiencing a problem with the level converter in the
> interface cable I'm using. I believe the maker is "Ham Comm" or some
> such...you know, the electronics are all housed in the DB25 connector.
>
> What are you fellows using...other than the "gucci" model from Yaesu.
> The
> one I have had been working well, but seems to have crapped out, so
> I'm
> going to try something else.
>
> Alternatively, if any of you are using that interface, can replace the
>
> small IC? There doesn't seem to be any markings on it to tell what it
> is.
>
> Thanks.
>
> Larry N0XB
> Northfield, MN
>
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73 CUL KJ5KP
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