[ICOM] Re: IC-718 Speech Processor Adjustment

[Clif Holland]

The service manual shows absolutely nothing about the speech processor. 
Either in circuit description or alignment.

Clif Holland KA5IPF
www.avvid.com




----- Original Message ----- 
From: "D C *Mac* Macdonald" <k2gkk at hotmail.com>
To: <icom at mailman.qth.net>
Sent: Tuesday, October 31, 2006 7:50 PM
Subject: RE: [ICOM] Re: IC-718 Speech Processor Adjustment


> The Icom site and/or the marcucci site might have
> a service manual for the 718.
>
> Mac
>
>
>
> ----Original Message Follows----
> From: "Mike Olbrisch" <mike2004 at elp.rr.com>
> Reply-To: ICOM Reflector <icom at mailman.qth.net>
> To: "'ICOM Reflector'" <icom at mailman.qth.net>
> Subject: RE: [ICOM] Re: IC-718 Speech Processor Adjustment
> Date: Wed, 1 Nov 2006 01:44:14 -0000
>
>
> A quick search pulled up this.
>
> http://www.eserviceinfo.com/equipment_mfg/Icom_39.html
>
> http://www.eserviceinfo.com/downloadsm/5123/Icom_IC-718.html
>
> http://www.ham.dmz.ro/icom/ic-718.php
>
> http://fileshare.eshop.bg/service_manual/datasheets_i_200.html
>
> It doesn't say operator or maintenance, and I didn't try downloading. 
> Hmmm
> - might not even be in English...    Not to worry - if you are working on
> the processor you likely can't read anyway - or so says some - and the
> pictures will just have to do.  <grin>
>
> I have ZERO experience with the 718, sorry and good luck.  Hope it helps.
>
> Mike.
>
>
> >-----Original Message-----
> >From: icom-bounces at mailman.qth.net
> >[mailto:icom-bounces at mailman.qth.net] On Behalf Of Thomas Giella KN4LF
> >Sent: Tuesday, October 31, 2006 10:10 PM
> >To: a IC-718 Mod eGroup; a IC-718 Unmod e Group; a Icom eList;
> >a Icom-All eGroup; a IcomRadio eGroup
> >Subject: [ICOM] Re: IC-718 Speech Processor Adjustment
> >
> >Hi Doug,
> >
> >The mic gain setting is on 30 on a scale of 00-100, the speech
> >processor is on with virtually no ALC movement except on the
> >highest voice peaks. Audio reports are poor with the processor
> >on and good with the processor off. The mic is an SM-6 desk mic.
> >
> >The problem is that the IC-718 RF processing is set at +12 db
> >at the factory when it should be no more than +6 db. I want to
> >adjust it down to +6 db but the adjustment is internal and I
> >can't find it in the service manual or on the schematic. I
> >guess I will have to call Icom in WA and see if they know the answer.
>
>
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