[Kenwood] TS940 Pwr Supply Fan info

Fri, 19 Dec 2003 22:58:49 -0800 (PST)

Mike,

Can you disconnect the fan and connect to a bench variable power supply.
Years ago when I had a 940 my fan was slow as well. It turned out that
it needed a few drops of oil on the bearings (not easy to get to). Maybe
it is the same situation??
Good luck.
Happy hollydays.

Mort, KB6BSN

> Just bought a nice clean 940 (10 mil s/n) and noticed it runs a little hot
> on the power supply side.  Inspection revealed that the fan was barely
> turning.  The fan checks good with a 12 volt bench supply.  I have approx
> 18.8 volts on one side of the thermistor.  When I jumper the thermistor, I
> can see approx 2 volts on the high side of the fan and it's turning, but
> not
> enough to move air.  I also get the same results by putting my solder iron
> close to the thermistor while it's in the circuit.  Sure would appreciate
> some help if anyone has been down this road.
>
> 73
> Mike
> K5UX
>
>
> - - -
>
> Your moderator for this list is:
> Larry Wilson KE1HZ [email protected]
>
> _______________________________________________
> Kenwood mailing list
> [email protected]
> http://mailman.qth.net/mailman/listinfo/kenwood
>