[Kenwood] TS-450 PLL ?

Sun, 18 Aug 2002 02:35:00 +0000

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]

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