[Kenwood] TS-450 PLL ?

Mon, 19 Aug 2002 02:53:49 +0000

I just opened my TS-870 and TS-950SDX ...same #@%*&* PLL /VCO2 in both of 
them as well...at least I'll know what to do them in a few years 8^(

One of my fathers favorite sayings when I was a lad growing up was

"By making the same mistake over and over at least I was learning to do one 
thing really well" .... seems to fit Kenwood here for sure.

At 01:02 PM 8/18/02 -0500, Clif Holland wrote:
>It is the same problem in the 450. It is even the same oscillator. The set
>voltage is also 5v. It is located under the speaker, second board down. The
>only enclosed area with one hole. Marked X53-3390.....
>
>Clif Holland, KA5IPF
>WE ARE MOVING IN AUGUST, SEE WEBSITE FOR MORE DETAILS
>AVVid
>Authorized Kenwood and Icom Amateur Service
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>
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>----- Original Message -----
>From: "Dave" <[email protected]>
>To: <[email protected]>; <[email protected]>
>Sent: Saturday, August 17, 2002 9:35 PM
>Subject: Re: [Kenwood] TS-450 PLL ?
>
>
> > Jeff
> >
> > The "big brother to you TS-45-, the TS-850 is chronically known to have a
> > similar problem. In the  case of the 850 you must find VCO2 on the PLL
> > board and reset the trimmer cap which is inside a little metal enclosure
>on
> > the PLL board. There is a DC voltage at TP2 which is monitored while you
> > are resetting the trimmer cap, in the case of the TS-850 you adjust the
> > VCO2 cap VC1 until the test point reads 5.00V.
> >
> > It is a very easy adjustment to do ( tiny screw driver and a a DC meter)
> > but you will likely need a copy of the service manual in order to know
> > where the test point is and what the correct voltage is for  TS-450 for
>sure.
> >
> > At 10:23 PM 8/17/02 -0400, [email protected] wrote:
> > >Hello , My 450 has developed an interesting habit.After being on a couple
> > >of minutes it begins to send UL in Morse .It looses receive and after a
> > >few seconds the display blanks.Any suggestions on where to start?
> > >Thanks , Jeff /N4YU
> > >
> > >
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> > 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
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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