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Date: 16 Sep 89 11:26

Message-ID: <7602
From: VE3WZL
To: ALL
Subject: TM-731A RPTR & OUT-OF-BAND MODS

Path:      N8HTG!VE3WZL



Thanks to the efforts of our local technical wizard, Bob VE3GVD, we now have

the secret to making the new Kenwood TM-731A do the same fancy tricks that its

sister rig the TM-721A did.  Here is how it's done:



1) Remove the top and bottom covers, and take out the screws that will allow

   the front panel assembly to swing down.



2) With the rigs front facing you and the top side up, locate R 121 and R 125

   which are both immediately to the left of the lithium battery.



3) Using a low wattage iron and tweezers, remove R 121 which is about the seven

   o'clock position with respect to the battery and reinstall it in the blank

   position designated for R 125 which is about the eight-thirty position with

   respect to the battery.



4) Now locate R 25 on the back of the circuit board that is attached vertically

   to the main chassis. (It's the board behind the front panel when the panel

   is folded up)  Carefully un-solder and lift off the grounded end.



That completes the mod.  Having a service manual, or at least a board layout

will assist you in locating the components.  It will be neccessary to do a

reset on the microprocessor as described in the user manual after doing the

mods described.



For those curious as to what does what, removing R 121 enables the repeater

cross-band function, and the adding of R 125/removal of R 25 enables the out-

of-band features.



73, Weazle, VE3EAR



SOURCE: The QRZ Windows Ham Radio CDROM



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