[Kenwood] TS 850s/AT display problem

Wed, 31 Jul 2002 13:05:17 -0400

Thanks to all those who replied either direct or via the list.

The display problem is now resolved.

Those of you who pointed me in the direction of a 470 uF electrolytic were
right. I replaced this electrolytic, which had just started to leak, cleaned
up the PC board around the area and it has worked flawlessly since.
Interestingly, the only problem is that the replacement part is huge
compared to the original, so I had to do make an adjustment and have it
laying flat on the PC board.

Thanks again for all the help!!!

73, Dean - 8P6SH

----- Original Message -----
From: "Guillermo" <[email protected]>
To: "Dean M. St. Hill" <[email protected]>
Cc: "Kenwood" <[email protected]>
Sent: Wednesday, July 24, 2002 8:00 PM
Subject: Re: [Kenwood] TS 850s/AT display problem

> Hello Dean, check display pc board, for an intermittent connection at
> or near a +B supply filter electrolytic. It may be leaking and this
> corrodes the area.
>
> Good luck
> Guillermo - LU8EYW.
>
> "Dean M. St. Hill" escribi�:
> >
> > Dear Group
> >
> > I have a TS850s/AT which seems to work very well except for quite
> > frequently, the display starts to blink and become intermittent while
tuning
> > across the bands. At first it was only on 15m, but in the last week or
so,
> > it has been happening nearly everytime the radio is used.
> >
> > I thought it may have been an overheating situation, but I've put a
couple
> > muffin fans on it, without the problem going away.
> >
> > The important thing is that neither the RX nor the TX is adversely
affected,
> > and the readout on the computer under computer control remains perfect.
> >
> > Could this be either a power supply under voltage or actual display low
> > voltage situation???
> >
> > Thanks for your help.
> >
> > Dean - 8P6SH
> >
> > - - -
> >
> > Your moderator for this list is:
> > Larry Wilson KE1HZ [email protected]
> >
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> - - -
>
> Your moderator for this list is:
> Larry Wilson KE1HZ [email protected]
>
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