[ICOM] Need help with Icom 706

[Tom Norris]

On Jul 4, 2006, at 2:38 PM, Eric Booth KG4CYB wrote:

> Hello,
>
> I have an Icom 706 original which keeps giving me problems with no  
> transmit or low power.  This problem origionates from the filter  
> board.  To solve this problem I need a Matsushita AHY-103 or HY  
> 1-12 v relay.  I already have a few extra diodes.  After contacting  
> Icom  (USA ), They told me they were on backorder and they are also  
> on backorder on digikey.   I did contact Icom  Canada and they said  
> they did have them, Part # 6330001320, But they could not ship to  
> the USA.  I was wondering if anyone in Canada could order them and  
> send them to me or maybe someone would have an extra filter board  
> for the origional Icom 706 ?

I wonder how common this problem is.  I've had to replace several  
transistors and steering diodes in my filter board over the years and  
have hear of others who have as well.  Not needed to in my MkII or G.  
Band data voltage is fine, the data lines from the main board to the  
filter board are fine, the darned thing seems to eat its own  
components. It'll work for a year or so, then something different  
will fail.  I usually run very low power on this particular radio,  
and indeed haven't had any of the relays fail.  I'm sure the whole  
assembly from Icom is worth more than the radio, costwise...

I'm half tempted to build an external bandpass filter assembly, but  
use a bit more robust method of switching.

Tom NU4G