[Kenwood] TS-850 Audible Whine

[rbethman]

You can download the Service Manual, OR you can open the PA Fan unit up 
and measure the voltage applied to the fan.

IOW - It IS a 12VDC (13.8VDC) Fan Motor.

I'll try this again - get a ball bearing Computer CPU fan, and replace 
that cheap Panasonic/Matshusta fan motor.

These also run at LESS than half the current load of the Factory Fan units.

Already been there - done that!

Your choice.

Bob - N0DGN

On 3/13/2013 5:04 PM, Mark Nace wrote:
> Well folks,
> I found an old post on google that shed some light on it, and found that I have
> a malady in the internal fan on the 850.  The high-freq. sound is because the
> fan will not turn unless given a little shove....and then once going, still has
> a high-freq audio squeal.  I heard it uses 8.5 volts ?  Anyway, I am oging to do
> some more troubleshooting on it.  Definitely need the fan turning on those
> finals!!!  Any further info on a replacement or fix would be appreciated!
> 73
> Mark
> N5KAE
>
>   
>