[Kenwood] TS-450 PLL ?

Sun, 18 Aug 2002 13:02:00 -0500

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
www.avvid.com

1-800-214-5779
----- 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
> >
> >
> >--- StripMime Report -- processed MIME parts ---
> >multipart/alternative
> >   text/plain (text body -- kept)
> >   text/html
> >The reason this message is shown is because the post was in HTML
> >or had an attachment. Attachments are not allowed.
> >Please post in Plain-Text only.---
> >- - -
> >
> >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