I have a Kenwood TS-711A which did not come (used) with a schematic. 
 The radio operates via a 110vac power cord or by removing a jumper 
 connection can be run via 12vdc.  The 12v connection is a 4-pin 
 square Molex type connector.  The jumper connection used when 
 operating 110vac looks like this: 
 
                o--o 
                o  o 
 
 I've tried tracing this power connection and am lost.  Does anyone 
 have information for constructing a 12vdc power cable?  I am 
 guessing that the jumper would be removed and maybe the bottom 
 two pins would be for 12v but have been unable to confirm this or 
 to determine, if so, which would be positive/negative. 
 
 Thank you, 
 Bill, KC5EZQ 
 
 
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