[Kenwood] Kenwood AT300 auto A.T.U.

[John Croxford]

Hi
Anyone done any fault find on the AT300 Kenwood auto ATU ?
Have a intermitant fault on mine can not tune 20 meters or 160 meters, other 
time tuning is alright.
Occasionly no tuning when AT tune button pressed on rig
Have also notice the ATU ( I guess the control circuit) breaks into 
oscilation.
ATU used with TS870 and TS50.
Thank you
John G3oic
G3oic at NTLworld.com