[ICOM] IC-215 alignment inst. ???

[Dave Edwards]

Mac....the xtals in there are for british repeater freqs in the 145 Mhz 
range. Would your first reaction be that should be close enough for the 146 
range to work fine?  One strange thing I found between the export and US 
IC215...the mixing scheme is different...you have to add the local osc freq 
to desired sig to get 10.7 IF...instead of subtracting in US model......or 
vice versa...one is added, the other is subtracted.
Can't think why that would be...unless some mixing product falls on a 'bad' 
frequency??

...Dave
----- Original Message ----- 
From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
To: <icom at mailman.qth.net>
Sent: Tuesday, October 24, 2006 1:43 PM
Subject: Re: [ICOM] IC-215 alignment inst. ???


> Hi, Dave.
>
> Your biggest problem will probably be determining
> which components are which from the block and
> schematic diagrams.
>
> If the cans are "full of wax" use your wife's hair
> dryer to soften the wax prior to attempting to
> adjust them.  The IF stage should not need any
> adjustment.
>
> Back in 1972, I had the crystal controlled IC-20
> and IC-21 rigs for 2m.  I built a GLB synthesizer
> that would cover 140-149.995 MHz.  I retuned
> both radios to be able to cover entire 144-148
> band plus a bit below to be able to cover Air
> Force M.A.R.S. frequencies.  I got about 3 Watts
> at 143.950 and still had about 7 or 8 Watts out
> in the majority of the 2m ham band if I remember
> correctly.
>
> I still have a 215 I bought new at Dayton back
> in 1974 or 1975.
>
> YRMV.
>
> Mac - K2GKK/5
>
>
>
> ----Original Message Follows----
> From: "Dave Edwards" <kd2e at comcast.net>
> Reply-To: ICOM Reflector <icom at mailman.qth.net>
> To: "ICOM Reflector" <icom at mailman.qth.net>
> Subject: Re: [ICOM] IC-215 alignment inst. ???
> Date: Tue, 24 Oct 2006 13:36:10 -0400
>
> Mac.....I do have the owner's manual.  It has a simplified theory of op, 
> and a block diagram and schematic. I suppose I could just tune the RF 
> stage on xmit, and go through the IF stages on receive...but when 
> alignment instructions exist, I like to follow them.  I suppose I'll check 
> the receive with a generator, and the xmit on a wattmeter to see just how 
> off it is from 145 to 146 range. Might not be worth it, especially if 
> those little xfmr cans are full of wax!
> ...Dave
>
>
> ----- Original Message ----- From: "D C *Mac* Macdonald" 
> <k2gkk at hotmail.com>
> To: <icom at mailman.qth.net>
> Sent: Tuesday, October 24, 2006 12:19 PM
> Subject: RE: [ICOM] IC-215 alignment inst. ???
>
>
>>Do you have the owner manual?  I doubt
>>that there is any service manual for it.
>>Icom owner manuals had theory of operation
>>back in the days before no-code/know-nothing
>>licensing.  That should give you an idea as to
>>where to start.  Owner manual came with a
>>full schematic.
>>
>>Mac - K2GKK/5
>
>
> ----
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