[Kenwood] TS-940 Tuning Problem

[Dennis Younker NE6I]

Thanks, Clif. I will look that up in the service manual.

Since I have your ear, do you know of a source for the lamp for the LCD 
display? East Coast Parts no longer stocks them. I may have to do some sort 
of retrofit.

--Dennis NE6I

----- Original Message ----- 
From: "Clif Holland" <clif at avvid.com>
To: "Dennis Younker NE6I" <ne6i at cox.net>; <kenwood at mailman.qth.net>
Sent: Thursday, September 05, 2013 5:00 PM
Subject: Re: [Kenwood] TS-940 Tuning Problem


> You need to align the optical encoder AKA main VFO.
>
> Clif Holland KA5IPF
> www.avvid.com
>
>
>
>
> ----- Original Message ----- 
> From: "Dennis Younker NE6I" <ne6i at cox.net>
> To: <kenwood at mailman.qth.net>
> Sent: Thursday, September 05, 2013 5:25 PM
> Subject: [Kenwood] TS-940 Tuning Problem
>
>
>> Hello all,
>>
>> I have a TS-940S with a 9 mil serial number. This particular radio 
>> usually sits to the side unused/unpowered as it is a back up radio. It 
>> was previously working satisfactorily but today I noticed that the VFO 
>> tuning is no longer working properly.
>>
>> Regardless of band or mode, the tuning is pretty much stuck on the same 
>> frequency. Spinning the tuning knob changes frequency maybe a couple of 
>> kHz at most.
>>
>> I opened the radio, tapped on the boards, wiggled some harnesses and 
>> connectors but nothing helped. F.LOCK is not activated. Depressing that 
>> definitely locks down the frequency. Depressing it again puts the radio 
>> back in this sort of unstable tuning state where the frequency can barely 
>> be changed.
>>
>> The radio seems to be receiving fine when I can get the VFO to a signal.
>>
>> Can someone point me toward some things to check please? Thanks very 
>> much.
>>
>> --Dennis NE6I
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