[ICOM] Icom IC-02 AT, 2 m HT FS

[Ken Simpson, W8EK]

Hi Gary,

Thanks very, very much for all your work on this.

There is no question that the HT I have is one of the "old" type, as it
will not reset with the function and power on reset.  It has a push
button switch inside near the Lithium back up battery that must be
pushed to reset.  And I have reset it several times using this method,
although it is a real pain.  It certainly would have been nice if there
was a tiny hole at the proper place to get to that reset button.

I have tried all of the things you listed in reference to function and
"7".  I think you hit it when you said that you must be standing on your
head and whistling while you do it.  Only thing is, that didn't even
work!!!!

I am certainly leaning to the fact that it may have had its diode matrix
changed by an earlier owner.  The reason I say this is I would expect
the frequency display to "go away" once I hit the Function and then 7,
and display either nothing, or maybe 00 or some such, indicating I was
in to the offset menu area.  To put it another way, I would expect
similar to when using Function and "1" to set the tones.  When I do
that, I get a "00" that I can change.  When I try to get to the offset,
the frequency display stays the same, and never changes.  Basically, it
seems that the microprocessor does not know I am trying to talk to it.
Nothing changes on the display.

So the next question is this:  does anyone know what the diode matrix
should look like to get it to work properly?

Gary, I really appreciate your exercising your grey matter.  What is it
they say about "Use it or loose it"?  Sounds like you are really using
it!

Thanks.

73,

Ken, W8EK
 

> -----Original Message-----
> From: icom-bounces at mailman.qth.net 
> [mailto:icom-bounces at mailman.qth.net] On Behalf Of Gary Fiber
> Sent: Saturday, November 18, 2006 2:51 PM
> To: ICOM Reflector
> Subject: Re: [ICOM] Icom IC-02 AT, 2 m HT FS
> 
> 
> Ken,
> 
> I was looking about and came across a modification for 02AT's with 
> serial numbers above 34,000 Now that seems to ring a bell and I think 
> yours with a 17,000 serial number is a early version. the 
> later models 
> would also reset holding the FUNC button and turning on the radio.
> 
> The early versions ones you had to disassemble the radio, remove the 
> front cover, power it up and press the little reset button. 
> The also the 
> OOB modification took about 3 diodes to accomplish where above 34,000 
> you removed one diode for wide RX and installed another to enable TX.
> 
> The bad news is the early version 02AT's used a different 
> duplex setting 
> procedure than what I wrote.
> 
> I still think its FUNC then while holding the FUNC button choose the 
> desired direction of offset release the function. Now Press the FUNC 
> again. then the " 7 " then amount of offset on 4 digits then 
> release the 
> FUNC button..
> 
> Or maybe this has to be done while standing on your head and 
> whistling ;)
> 
> Lots of mods posted no operating guides than on Icom.co.jp web page 
> which is the newer version I am sure.
> 
> Someone on this list must have an early 02AT manual they 
> could look this 
> up in or one of those wallet cards we used to give out at hamfest and 
> mail out.
> I was looking in my file cabinet and found a memory programming quick 
> guide card for the IC-27A/H-37A and 47A but no 02AT dang..........
> 
> Well this has been a good exercise for my grey matter.
> 
> Gary K8IZ


> > Hi Gary,
> >
> > Thanks for all of that good info.
> >
> > I have tried what you outlined at least a dozen times, and 
> can not get
> > an offset.  I do not get an offset any place.  Not in memory, non in
> > entering manually, not at all.
> >
> > I will get both manuals and see what happens.  Maybe I overlooked
> > something.  I bought the HT used, so who knows if someone 
> played with it
> > before me.  Probably fairly likely!
> >
> > Thanks very much for all the info.
> >
> > 73,
> > Ken, W8EK
> >
> >   
>