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CAT dead - is there any hope?


Blake Sims
 

My IC-7000 CAT died after a nearby lightning strike. Rest of the radio is fine, just cannot use the remote port to program the rig or control it .Had a local shop look at it and they said would cost more than the rig is currently worth. Has anyone else dealt with this and was it as hopeless as the tech said?


 

Yes mine has had that problem twice before from the same residual lightning ? strike. I have repaired it both times once was years ago when icom was still actively supporting these units, however it was cost prohibitive even then because they wanted to do a board swap at over half the cost of replacement. The second time was a couple of years back I found the parts in Canada ?? and I bought all they had in stock. While most of the parts are standard parts they are still not easy to come by. I have since moved my repair facility some 60 miles away from Atlanta and still have a lot of my stock in storage, but I know where most of the items for the ic R70, R71, and R7000 because I maintain several of these units. I do not know what price you were quoted, but parts and labor for a repair such as yours should not run more than $275.00 not including?shipping and insurance costs. I absolutely will not accept or ship unless the unit is properly insured because shippers are getting bad about losing and or damaging shipped items. So they must be packaged ? properly and insured for the proper amount regardless of who the shipping company is. I have been servicing professional communications equipment since 1968, including most Ham gear. I can be reached at 706 270 3829 Laurin Cavender WB4IVG?


On Sun, Sep 3, 2023, 11:53 PM Blake Sims <ebsims01@...> wrote:
My IC-7000 CAT died after a nearby lightning strike. Rest of the radio is fine, just cannot use the remote port to program the rig or control it .Had a local shop look at it and they said would cost more than the rig is currently worth. Has anyone else dealt with this and was it as hopeless as the tech said?


 

Blake sorry I misread?your message I thought you were asking about the control port on the icom ic R7000 not the ic7000 which I also own and use. Actually I have one of those on the bench now. It is well after midnight and it has been a long day. I will pull out my service manual in the morning ? and look to see what I can do as to the parts situation on the ic7000 transceivers control port. I will respond again?tomorrow and let you know?what I find as to parts and availability. 73 Laurin WB4IVG?


On Sun, Sep 3, 2023, 11:53 PM Blake Sims <ebsims01@...> wrote:
My IC-7000 CAT died after a nearby lightning strike. Rest of the radio is fine, just cannot use the remote port to program the rig or control it .Had a local shop look at it and they said would cost more than the rig is currently worth. Has anyone else dealt with this and was it as hopeless as the tech said?


Blake Sims
 
Edited

Hey Laurin. I studied the service manual and it seems the external port goes first through the logic unit as CVI and CVIE.




Blake Sims
 

My bad - CIV and CIVE.


Blake Sims
 


Blake Sims
 

Hey Laurin, any hope for this baby?


 

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When my cat died, I buried her.? It was over.


On 9/5/2023 5:58 PM, Blake Sims wrote:

Hey Laurin, any hope for this baby?


 

Is it the logic unit that¡¯s the problem?


 

Hi if I remember?correctly
There is a small inductor near the socket, test that to see if it is still working, as my one was not working,
So I could not put the radio in to service mode,
Dave 2E0DMB?

On Wed, 6 Sept 2023, 13:16 Rupert Walford, <rupert.walford@...> wrote:
Is it the logic unit that¡¯s the problem?


 

As I remember, but could not find on the schematic, there are two transistors that receive the combined TTL RX and TX signal from the CAT jack and separate it into the TTL separate RX and TX into signals for the logic circuit. These two transistors are where I would look for the loss of signals. I have had a problem here before, but the details have faded into the lost memory fog...
IF someone can guide me to the proper page I can look again, but if you find the proper input I think you can fairly easily track the signal to these two SMD transistors.

JD
KE4MD