[aprssig] Kenwood TR-7730 backup battery?

Steve Noskowicz noskosteve at yahoo.com
Sat Apr 20 10:43:07 CDT 2013



Mods.dk probably has it.
Also...
Please remember that Google is your friend:

  try Google "kenwood tr-7730 service manual"

BUT BE CAREFUL.  On some sites the big, obvious "DOWNLOAD" buttion is for something else.  The real download is in "fine print" somewhere else:
e.g. this operator's manual:  http://elektrotanya.com/kenwood_tr-7730_sm.pdf/download.html

Poor resolution Schematic:
http://elektronicsstock.blogspot.com/2011/04/schema-kenwood-tr-7730.html#!/2011/04/schema-kenwood-tr-7730.html 




73, Steve, K9DCI  USN (Vet)  MOT (Ret)  Ham (Yet)

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--- On Fri, 4/19/13, Greg D <ko6th.greg at gmail.com> wrote:

> From: Greg D <ko6th.greg at gmail.com>
> Subject: [aprssig] Kenwood TR-7730 backup battery?
> To: "TAPR APRS Mailing List" <aprssig at tapr.org>
> Date: Friday, April 19, 2013, 10:54 PM
> Hi folks,
> 
> My packet station and iGate runs on an old but quite
> serviceable Kenwood TR-7730.  The rig has a connector
> in the back for a backup battery, but none is present, so
> any momentary glitch in power send it back to
> defaults.  I have not been able to find a battery, nor
> the pin-out and specs to fashion one of my own.
> 
> There appear to be 3 pins in a triangle formation. 
> Anybody know what the spec is?
> 
> Thanks,
> 
> Greg  KO6TH
> 
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