Kenwood TH-G71A Modification Page

Posted 3/5/98. Mod info courtesy of Jerry, (KK6YO)

KENWOOD SUPPLEMENTARY  Amateur Radio Division        Asi-0036


SUBJECT: TH-G71A Beyond Mars MODIFICATION   DATE:  11/03/97

This modification is provided "as is" and is subject to change without notice, 
Kenwood Service Corporation (Nor I) make any warranty of any kind with regards to This
modification procedure, including, But not limited to, the implied warranties 
of merchantabilty and fitness for any purpose. Kenwood Service Corporation(And I) 
shall not be liable for any error or for incidental or consequential damage 
in conjuction with the furnishing, performance, or use of this modification 
procedure.


Modification procedure.
1	Remove The battery Pack and antenna.
2	Open the SPKR/MIC dust cover.
3	Remove the three screws from the back panel of the transceiver
4	Carefully lift up the bottom end of the back panel and pull the entire 
         back panel towards the bottom of the transceiver to clear the antenna 
         connector from The top pnnel. Do not break the ribbon cable That 
         connects the back panel PCB to the front case PCB.
5       Set the back panel to the left side of the front case.
6	Locate and remove diode D512 and D513 from the bottom right side of the
         front case PCB.
7	Assemble the transceiver by reversing the steps listed above. The 
        transciever will automatically reset when turned on.

   TX Capability. 
   136.000 - 173.995Mhz          400.000 - 469.995Mhz

   Rx capability.
   118.000MHz- 173.995MHz,       400.000MHz-  469.995Mhz
   320.000MHz- 399.99375Mhz,     800.000MHz-  823.9875Mhz 
   849.000MHz -868.9875Mhz       894.000MHz-  949.9875MHz     




NOTE: This change also allows the transceiver to access a previously suppressed 
menu number 16. this menu allows the transceiver to switch between FM and AM in 
the ll8Mhz- 136.000MHz range.

Another Note: If you only want to expand the RX,Remove D512 ONLY. 
For MARS/CAP TX expand only, cut the green wire(W500)ONLY.

P.S. Thank you to the people that sent me info about this. bb


Here is a drawing of the radio.  (Which tells you just about everything you 
need to know.)






Here is a picture of the radio apart just before I removed the Diode.
It is really quite easy.
The arrows point to the Two diodes that need to be removed.







"Do not attempt any of these modifications without checking all applicable laws
 in your area. Doing so may violate laws and destroy your radio if you do not
 know what you are doing. All such activites are done at your own risk. Content
 of this page is for informational purposes only. No express or implied warranties
 as to the accuracy of the information.(Or spelling!)" (There, my rear is covered : )

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