[Icom] 775dsp Mods/Upgrades/Fixes

Mon, 13 Jan 2003 07:28:47 -0500

Paul, Brent and others,

Icom mods/upgrades/fixes for early production 775DSPs (mine purchased 
in December 1996) performed at Icom's Bellevue facility:

(1) Rotary encoder replacement

My understanding is the subcontract manufacturer that provided the 
original rotary encoders had not packed the proper type and/or amount 
of lubricant in the encoder.  Consequently, the encoder would stiffen 
and eventually sieze up.  The unit needs to be replaced.

(2) AGC mod per ARRL QST review

(3) VFO mod (don't recall the specifics)

(4) CW mod (don't recall the specifics)

(5) Display mod

On some units the display would dim during CW and/or RTTY transmission.

(6) Slight SSB audio distortion

May have been unique to my rig.

Again these were performed in May 1997 under warranty. Icom techs knew 
exactly what the issues were and what needed to be done. Turnaround 
time back then was less than a week.

Hope this helps.

Harry WE1X

----- Original Message -----
From: paul <[email protected]>
Date: Sunday, January 12, 2003 9:43 pm
Subject: Re: [Icom] 775dsp

> harry...  very much appreciated...  thanks for your 
> consideration..  best 73
> paul w8jn
> ----- Original Message -----
> From: "Harry Tankin" <[email protected]>
> To: <[email protected]>
> Sent: Sunday, January 12, 2003 9:37 PM
> Subject: Re: [Icom] 775dsp
> 
> 
> > Paul,
> >
> > will send you tomorrow a list of mods/upgrades done on my 
rig...that
> > should give you some specifics in dealing with Icom over the phone.
> >
> > Harry
> >
> >
> >
> > ----- Original Message -----
> > From: paul <[email protected]>
> > Date: Sunday, January 12, 2003 8:42 pm
> > Subject: Re: [Icom] 775dsp
> >
> > > harry  thanks...  exactly what i was in need of..  will call icom
> > > and see if
> > > they have a record of mods for my rig...  best 73  paul w8jn
> > > ----- Original Message -----
> > > From: "Harry Tankin" <[email protected]>
> > > To: <[email protected]>
> > > Sent: Sunday, January 12, 2003 8:13 PM
> > > Subject: Re: [Icom] 775dsp
> > >
> > >
> > > > Paul,
> > > >
> > > > My 775dsp has serial # 1489 and was purchased in December
> > > 1996...about> a year to 18 months after the rig was first
> > > introduced to the market.
> > > >
> > > > For those concerned about serial number fetish, numbers
> > > associated with
> > > > the 775dsp could have some significance.  The first one or two
> > > > production runs of the radio included a number of firmware and
> > > rotary> encoder problems that required the rigs to be returned to
> > > Icom for
> > > > upgrades and repairs (warehouse performed).  I believe rigs 
with
> > > serial> number 1900 and higher were either corrected in Japan 
> or from
> > > > production runs that incorporated the necessary changes.  
> Hence, if
> > > > someone purchased a used 775dsp below serial number 1900 he/she
> > > should> inquire whether the owner has the paperwork demonstrating
> > > the upgrades
> > > > and repairs were performed.
> > > >
> > > > Mine was returned to Icom in May 1997 to have 5 
> modes/upgrades/fixes> > > performed.  Not inconsequential for a 
> $3800 radio back then.  Has
> > > > performed like a champ ever since.  One great radio.
> > > >
> > > > Harry WE1X
> > > >
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: paul <[email protected]>
> > > > Date: Sunday, January 12, 2003 7:51 pm
> > > > Subject: [Icom] 775dsp
> > > >
> > > > >
> > > > > hi folks..  can anyone let me know where serial # 01241 
> places a
> > > > > 775dsp as
> > > > > far as year of manufacture?  tnx es 73  paul w8jn
> > > > >
> > > > > ----
> > > > > Your Moderator: Dick Flanagan W6OLD, icom-
> [email protected]> > > > Icom Users Net: Sundays, 1700Z, 
> 14.315 MHz
> > > > > Icom FAQ: http://www.qsl.net/icom/
> > > > >
> > > >
> > > > ----
> > > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > > Icom Users Net: Sundays, 1700Z, 14.315 MHz
> > > > Icom FAQ: http://www.qsl.net/icom/
> > > >
> > >
> > > ----
> > > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > > Icom Users Net: Sundays, 1700Z, 14.315 MHz
> > > Icom FAQ: http://www.qsl.net/icom/
> > >
> >
> > ----
> > Your Moderator: Dick Flanagan W6OLD, [email protected]
> > Icom Users Net: Sundays, 1700Z, 14.315 MHz
> > Icom FAQ: http://www.qsl.net/icom/
> >
> 
> ----
> Your Moderator: Dick Flanagan W6OLD, [email protected]
> Icom Users Net: Sundays, 1700Z, 14.315 MHz
> Icom FAQ: http://www.qsl.net/icom/
> 