[Kenwood] TS 930sat - Serial Number ranges

Mon, 11 Nov 2002 23:31:37 +0000

Bill is right once you have done the driver transistor replacement drill on 
the early serial number 930's it gets real easy. I had a friend at Motorola 
in those days who gave me some "engineering samples" (10 matched pairs of 
MRF465?). I had done it so often that once during the ARRL DX contest, I 
opened the rig disassembled the PA deck replaced the drivers, set the bias 
and was back on the air in less than 25 minutes...... This  was a 3XXXXXX 
serial number radio. I later traded it on for one of the last ones built in 
the late 80's I never had a problem with the later one.

Dave

At 07:27 AM 11/11/02 -0800, Bill wrote:

>Not too hard to do this yourself.  While you are at it, replace the 
>drivers with the low-gain matched pair sold by RF Parts... they are only a 
>hundred bucks or so.  Then mod the fan circuits so that they come on 
>sooner to keep the regulator and PA sections cooler... R&R the AVR unit 
>and re-solder everything... Buy a GOOD surge suppressor (at least $60.00 
>worth) to keep line spikes from avalanching your pass transistors; then 
>re-set the driver and final bias per the book... you could have a good rig 
>there. Just be sure to pray, or cross your fingers if you prefer, when 
>powering it up.
>
>If you are not handy with this sort of thing, I would not recommend the '930.
>
>73!
>
>Bill
>
>  NR1DX <[email protected]> wrote:
>Avoid serial numbers before 51XXXXX. They were notorious for unreliable PA
>decks. Kenwood had a service bulletin that actually said to remove all the
>solder ( solder sucker) and resolder every connection in the PA deck. I
>remember having a heated letter writing campaign with them at the time
>trying to get them to replace my PA deck with a later one.
>
>
>
>At 10:14 AM 11/10/02 -0800, Larry Knapp wrote:
> >I have a friend who is consdiering buying a TS-930. What are the early 
> serial
> >nubers and what are the later? I'm assuming that the late serial numbers 
> are
> >the ones to get as opposed to the earlier ones. Thanks for you time.
> >
> >73, Larry KC8JX
> >
> >
> >=====
> >May your days be full of sunshine and good thoughts fill your head.
> >From: Larry Knapp, KC8JX, St. Joseph, Mi 49085
> > Best 73's
> >
> >________! __________________________________________
> >Do you Yahoo!?
> >U2 on LAUNCH - Exclusive greatest hits videos
> >http://launch.yahoo.com/u2
> >- - -
> >
> >Your moderator for this list is:
> >Larry Wilson KE1HZ [email protected]
> >
> >_______________________________________________
> >Kenwood mailing list
> >[email protected]
> >http://mailman.qth.net/mailman/listinfo/kenwood
>
>Dave
>NR1DX
>[email protected]
>
>"A man who picks a cat up by the tail learns a lesson he can learn no other
>way" .... Mark Twain
>
>- - -
>
>Your moderator for this list is:
>Larry Wilson KE1HZ [email protected]
>
>_______________________________________________
>Kenwood mailing list
>[email protected]
>http://mailman.qth.net/mailman/listinfo/kenwood
>
>
>
>see our website <http://www.amateur-repairs.com>www.amateur-repairs.com
>
>
>
>Do you Yahoo!?
><http://rd.yahoo.com/launch/mailsig/*http://launch.yahoo.com/u2>U2 on 
>LAUNCH - Exclusive medley & videos from Greatest Hits CD

Dave
NR1DX
[email protected]

"A man who picks a cat up by the tail learns a lesson he can learn no other 
way" .... Mark Twain