Byron,
If the main board cpu is dead... you're pretty much
dead in the water unless you can find replacement
parts. The tkr-720/820 repeater/base units are long
out of production.
I have seen and bought parts unit kenwood tkr repeaters
off ebay, but you're going to pay serious money for then
depending on condition.
Next time I'm on the horn with Kenwood, I'll ask if
the CPU or main board can still be purchased.
skipp
skipp025@ yahoo.com
> "Hellewell, Byron" <[EMAIL PROTECTED]> wrote:
>
> Hi Coy
> Would you please advise me how to do a reset of a Kenwood TKB-720.
> I am not familiar with how to do it.
>
> Thanks
> Byron
> ______________________________________________________________________
> Date: Sat, 07 Jan 2006 03:08:18 -0000
> From: "Coy Hilton" <[EMAIL PROTECTED]>
> Subject: Re: Kenwood TKB-720 CPU failure
>
> DId you try a full reset of the radio...that might help. I would try it
> before replacing it.
>
> <[EMAIL PROTECTED]> wrote:
> >
> > Hi All
> > I have a TKB-720 base VHF radio.
> > I have apparently killed the CPU.
> > It was working fine and I added a wire to bring the unfiltered
> audio
> > to the rear panel connector. I added the wire on the control board.
> >
> > But it is murphy's day today.
> > This is the most serious of several things that have gone wrong
> today.
> >
> > I accidently connected the audio line to the +12 volt line.
> > After the mod the radio appeared to work (because all the displays
> > were working) but I had no audio to the speaker.
> >
> > I opened it back up and discovered my mistake but not before the
> > display quit working. It appears that the CPU has died. (no
> channel
> > selection, nor is radio on the default frequecy also no there is
> no
> > channel display.) I checked the power to the CPU it is still good.
> >
> > The audio works fine now (unsquelched noise comes throught speaker)
> >
> > The control board is a Kenwood number x54-3070-10.
> >
> > Does anyone have a spare board or a spare CPU chip?
> >
> > Thanks
> > Byron NJ7J
> >
>
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