[Kenwood] TS-820s VFO problem
[email protected]
[email protected]
2004年2月04日 06:40:21 -0800
Hi Clif,
Well, the radio works, ie. it transmits on the bands selected, but
during warmup, the frequency fluctuates a few hundred hz. Looks like
it could be both a display problem and a vfo problem. The frequency
settles down after the rig has been running for a while, and then
the frequency display changes to the correct frequency.
Any additional thoughts?
cheers, Paul - VA7NT
On 2004年1月29日 09:23:04 -0600 [email protected] wrote:
> Does the radio work while it's doing this? If so then it's the display. If
> not it's probably in the PLL.
>> Clif Holland, KA5IPF
> AVVid
> Authorized Kenwood and Icom Service Center
> 816 W Shady Grove Rd
> Irving, TX 75060
>> www.avvid.com
>> 1-800-214-5779
> 972-870-0630 (Local)
> ----- Original Message -----
> From: <[email protected]>
> To: <[email protected]>; <[email protected]>
> Sent: Wednesday, January 28, 2004 5:00 PM
> Subject: Re: [Kenwood] TS-820s VFO problem
>>> > Thanks again Clif,
> >
> > Will try to keep my hair.
> >
> > One other thing. When cold, the rig does not change frequency with the
> > bandswitch. The display shows; 9.000 in the 1.8, 3.5, and 7.0 positions,
> 19.000 in the 14mhz position, 29.000 in the 21, 28, 28.5, 29 and 29.5mhz
> positions. After it has warmed up for a while, it displays frequencies
> > appropriate with each band the accuracy of which is verified with an
> > external signal generator.
> >
> > Any suggestions where to start with the cold spray?
> >
> > On 2004年1月28日 14:25:38 -0600 [email protected] wrote:
> > > Unless you are bald with no hair left to pull out don't even think
> about > > removing the front panel.
> > > On the right side of the VFO is a trap door. Remove the rf unit and you
> can
> > > get it open and then clean the bearings. Make sure the rear of the
> radio is
> > > tilted up a little and have a rag under the VFO to catch the overflow
> from
> > > your spray cleaner. Clean away and let it dry then reassemble.
> > >
> > > BUT!!!
> > > I don't think that's your problem, it sounds more like a screw has come
> > > loose and the VFO is not turning, period. Check that option first.
> > >
> > > Clif Holland, KA5IPF
> > > AVVid
> > > Authorized Kenwood and Icom Service Center
> > > 816 W Shady Grove Rd
> > > Irving, TX 75060
> > >
> > > www.avvid.com
> > >
> > > 1-800-214-5779
> > > 972-870-0630 (Local)
> > > ----- Original Message -----
> > > From: <[email protected]>
> > > To: <[email protected]>; <[email protected]>
> > > Sent: Wednesday, January 28, 2004 2:17 PM
> > > Subject: [Kenwood] TS-820s VFO problem
> > >
> > >
> > > > Hi Clif, thanks for the reply.
> > > >
> > > > The jumper is in place on the back, the digital counter display is
> > > > working but and shows the correct VFO frequency (verified with
> external
> > > > signal generator, but the vfo will not change frequency. Looks like
> > > > I need to remove the VFO to clean/lubricate as you suggest.
> > > > >From the manual, is is not clear to me if you have to remove the
> front
> > > > panel before removing the vfo. Can the VFO be removed without taking
> > > > off the front panel?
> > > >
> > > > Any further assistance would be appreciated.
> > > >
> > > >
> > > > On 2004年1月26日 09:47:09 -0600 [email protected] wrote:
> > > > > When the external VFO is unplugged a jumper plug must be used in
> the > > VFO > > socket or the internal VFO will not work.
> > > > >
> > > > > Clif Holland, KA5IPF
> > > > > AVVid
> > > > > Authorized Kenwood and Icom Service Center
> > > > > 816 W Shady Grove Rd
> > > > > Irving, TX 75060
> > > > >
> > > > > www.avvid.com
> > > > >
> > > > > 1-800-214-5779
> > > > > 972-870-0630 (Local)
> > > > > ----- Original Message -----
> > > > > From: <[email protected]>
> > > > > To: <[email protected]>
> > > > > Sent: Saturday, January 24, 2004 2:31 PM
> > > > > Subject: [Kenwood] TS-820s display problem
> > > > >
> > > > >
> > > > > > A friend has asked me to look at his TS-820s which has a problem
> with
> > > the
> > > > > digital display. The rig works fine with the external vfo. Are
> there > > any > > common failures with this model I should be looking for?
> > > > > >
> > > > > > cheers, Paul - VA7NT ex VE7CQK - email: [email protected]
> > > > > > "Those who hear not the music. . . think the dancers mad."
> > > > > > - - -
> > > > > >
> > > > > > Your moderator for this list is:
> > > > > > Larry Wilson KE1HZ [email protected]
> > > > > >
> > > > > > _______________________________________________
> > > > > > Kenwood mailing list
> > > > > > [email protected]
> > > > > > http://mailman.qth.net/mailman/listinfo/kenwood
> > > > > >
> > > > > >
> > > >
> > > >
> > > > cheers, Paul - VA7NT ex VE7CQK - email: [email protected]
> > > > "Those who hear not the music. . . think the dancers mad."
> > > > - - -
> > > >
> > > > Your moderator for this list is:
> > > > Larry Wilson KE1HZ [email protected]
> > > >
> > > > _______________________________________________
> > > > Kenwood mailing list
> > > > [email protected]
> > > > http://mailman.qth.net/mailman/listinfo/kenwood
> > > >
> > > >
> > >
> > >
> > > - - -
> > >
> > > Your moderator for this list is:
> > > Larry Wilson KE1HZ [email protected]
> > >
> > > _______________________________________________
> > > Kenwood mailing list
> > > [email protected]
> > > http://mailman.qth.net/mailman/listinfo/kenwood
> >
> >
> > cheers, Paul - VA7NT ex VE7CQK - email: [email protected]
> > "Those who hear not the music. . . think the dancers mad."
> >
> >
cheers, Paul - VA7NT ex VE7CQK - email: [email protected]
"Those who hear not the music. . . think the dancers mad."