[ICOM] Repairing a IC-471H

[John]

Bill,

Thanks for the info, when I get more time I'll look at that

John

Bill NY9H wrote:

> john,
>
> I have had the same failure mode two times in different VHF Icom 
> radios both in the module. The ceramic substrate cracked which cracked 
> a circuit trace.
> Once it was a wide trace carrying 12vdc. The other time it was a 
> different trace.
> Once the crack was visible to the eye, the second time , I needed a 
> magnifier.
>
> I was able to pull the "cover" off the module while leaving it still 
> connected.
>
> Then I floated solder , bridging the crack...
> I can't recall if I used silver solder, or even if I should have .
> But it fixed it ... both times.
>
> bill