[ICOM] IC-25H schematic of service manual needed.

[Gary Fiber]

That rig was before my time at Icom America from 1989 to 2001. The 
difference between the 25A and H should be very little other than the 
final amp so far as I remember. The E is the European version and it 
should be very little difference, maybe frequency coverage as some 
countries did not allow one to use 144-148 MHz.

Follow the power switch in the schematic I suspect you will find the 
issue. So far as factory mods to do that I can not remember any mods. I 
do remember you needed a BU1 battery back-up to retain memories. It did 
use a higher amplified mic like a HM-7, HM-8 or SM-8 set to H. The newer 
mics do not generally have enough output to properly drive the radio.

Gary Fiber K8IZ

On 11/18/2016 1:03 PM, Kenneth G. Gordon wrote:
> On 18 Nov 2016 at 14:22, Dave wrote:
>
>> Ken;
>>
>> The Mods.dk site has the 25H owners manual and the 25 A-E service manual.
> Thanks, Dave. I already had the owners manual, and I've downloaded the A-E manual.
> Might you know what the differences are between the E model and the H model, other than
> power output (45 watts in the H model)?
>
> Ken W7EKB
>
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